WO2016039400A1 - 発泡体、積層体及び成形体 - Google Patents
発泡体、積層体及び成形体 Download PDFInfo
- Publication number
- WO2016039400A1 WO2016039400A1 PCT/JP2015/075663 JP2015075663W WO2016039400A1 WO 2016039400 A1 WO2016039400 A1 WO 2016039400A1 JP 2015075663 W JP2015075663 W JP 2015075663W WO 2016039400 A1 WO2016039400 A1 WO 2016039400A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foam
- elongation
- break
- jis
- measured
- Prior art date
Links
- 239000006260 foam Substances 0.000 title claims abstract description 130
- 238000004132 cross linking Methods 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims description 51
- -1 polypropylene Polymers 0.000 claims description 35
- 229920005989 resin Polymers 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 34
- 229920001155 polypropylene Polymers 0.000 claims description 29
- 239000004743 Polypropylene Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 28
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 26
- 238000000465 moulding Methods 0.000 claims description 22
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 19
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 19
- 238000005187 foaming Methods 0.000 claims description 12
- 239000000155 melt Substances 0.000 claims description 9
- 229920005674 ethylene-propylene random copolymer Polymers 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 description 15
- 239000003963 antioxidant agent Substances 0.000 description 13
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 12
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 12
- 239000004711 α-olefin Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 239000004620 low density foam Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 229920005672 polyolefin resin Polymers 0.000 description 7
- 238000007666 vacuum forming Methods 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 230000003078 antioxidant effect Effects 0.000 description 6
- 229920001577 copolymer Polymers 0.000 description 6
- 239000004619 high density foam Substances 0.000 description 6
- 230000005865 ionizing radiation Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 229920000573 polyethylene Polymers 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 4
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 4
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 4
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 4
- 239000004156 Azodicarbonamide Substances 0.000 description 4
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 4
- 235000019399 azodicarbonamide Nutrition 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 4
- 239000002530 phenolic antioxidant Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 description 2
- 239000003508 Dilauryl thiodipropionate Substances 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000002649 leather substitute Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 150000002832 nitroso derivatives Chemical class 0.000 description 2
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- ARCGXLSVLAOJQL-UHFFFAOYSA-N trimellitic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C(C(O)=O)=C1 ARCGXLSVLAOJQL-UHFFFAOYSA-N 0.000 description 2
- ULUZGMIUTMRARO-UHFFFAOYSA-N (carbamoylamino)urea Chemical compound NC(=O)NNC(N)=O ULUZGMIUTMRARO-UHFFFAOYSA-N 0.000 description 1
- USVVENVKYJZFMW-ONEGZZNKSA-N (e)-carboxyiminocarbamic acid Chemical compound OC(=O)\N=N\C(O)=O USVVENVKYJZFMW-ONEGZZNKSA-N 0.000 description 1
- ROLAGNYPWIVYTG-UHFFFAOYSA-N 1,2-bis(4-methoxyphenyl)ethanamine;hydrochloride Chemical compound Cl.C1=CC(OC)=CC=C1CC(N)C1=CC=C(OC)C=C1 ROLAGNYPWIVYTG-UHFFFAOYSA-N 0.000 description 1
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- LRZPQLZONWIQOJ-UHFFFAOYSA-N 10-(2-methylprop-2-enoyloxy)decyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCCCOC(=O)C(C)=C LRZPQLZONWIQOJ-UHFFFAOYSA-N 0.000 description 1
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 1
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- SAPGBCWOQLHKKZ-UHFFFAOYSA-N 6-(2-methylprop-2-enoyloxy)hexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCOC(=O)C(C)=C SAPGBCWOQLHKKZ-UHFFFAOYSA-N 0.000 description 1
- YJVIKVWFGPLAFS-UHFFFAOYSA-N 9-(2-methylprop-2-enoyloxy)nonyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCCCCCCOC(=O)C(C)=C YJVIKVWFGPLAFS-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 239000002656 Distearyl thiodipropionate Substances 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- ULQMPOIOSDXIGC-UHFFFAOYSA-N [2,2-dimethyl-3-(2-methylprop-2-enoyloxy)propyl] 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(C)(C)COC(=O)C(C)=C ULQMPOIOSDXIGC-UHFFFAOYSA-N 0.000 description 1
- IORUEKDKNHHQAL-UHFFFAOYSA-N [2-tert-butyl-6-[(3-tert-butyl-2-hydroxy-5-methylphenyl)methyl]-4-methylphenyl] prop-2-enoate Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)OC(=O)C=C)=C1O IORUEKDKNHHQAL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- CAMXVZOXBADHNJ-UHFFFAOYSA-N ammonium nitrite Chemical compound [NH4+].[O-]N=O CAMXVZOXBADHNJ-UHFFFAOYSA-N 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- ZDNFTNPFYCKVTB-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,4-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C=C1 ZDNFTNPFYCKVTB-UHFFFAOYSA-N 0.000 description 1
- MPMBRWOOISTHJV-UHFFFAOYSA-N but-1-enylbenzene Chemical compound CCC=CC1=CC=CC=C1 MPMBRWOOISTHJV-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
- 235000019305 distearyl thiodipropionate Nutrition 0.000 description 1
- GMSCBRSQMRDRCD-UHFFFAOYSA-N dodecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCOC(=O)C(C)=C GMSCBRSQMRDRCD-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920005676 ethylene-propylene block copolymer Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 150000002429 hydrazines Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- HWPKGOGLCKPRLZ-UHFFFAOYSA-M monosodium citrate Chemical compound [Na+].OC(=O)CC(O)(C([O-])=O)CC(O)=O HWPKGOGLCKPRLZ-UHFFFAOYSA-M 0.000 description 1
- 235000018342 monosodium citrate Nutrition 0.000 description 1
- 239000002524 monosodium citrate Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003349 semicarbazides Chemical class 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- LVEOKSIILWWVEO-UHFFFAOYSA-N tetradecyl 3-(3-oxo-3-tetradecoxypropyl)sulfanylpropanoate Chemical compound CCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCC LVEOKSIILWWVEO-UHFFFAOYSA-N 0.000 description 1
- AGGKEGLBGGJEBZ-UHFFFAOYSA-N tetramethylenedisulfotetramine Chemical compound C1N(S2(=O)=O)CN3S(=O)(=O)N1CN2C3 AGGKEGLBGGJEBZ-UHFFFAOYSA-N 0.000 description 1
- GRPURDFRFHUDSP-UHFFFAOYSA-N tris(prop-2-enyl) benzene-1,2,4-tricarboxylate Chemical compound C=CCOC(=O)C1=CC=C(C(=O)OCC=C)C(C(=O)OCC=C)=C1 GRPURDFRFHUDSP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/024—Woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/026—Knitted fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
- B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/228—Forming foamed products
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2274/00—Thermoplastic elastomer material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/72—Density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/738—Thermoformability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2309/00—Parameters for the laminating or treatment process; Apparatus details
- B32B2309/08—Dimensions, e.g. volume
- B32B2309/10—Dimensions, e.g. volume linear, e.g. length, distance, width
- B32B2309/105—Thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2201/00—Foams characterised by the foaming process
- C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
- C08J2201/026—Crosslinking before of after foaming
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2205/00—Foams characterised by their properties
- C08J2205/06—Flexible foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Definitions
- the present invention relates to a foam, and more particularly to a crosslinked polyolefin resin foam obtained by crosslinking and foaming a foamable composition.
- Crosslinked polyolefin resin foams are widely used as heat insulating materials, cushioning materials, and the like.
- vehicle interior material such as a ceiling material, a door, and an instrument panel.
- vehicle interior materials are usually formed into a predetermined shape by secondary processing of a sheet-like crosslinked polyolefin resin foam by vacuum molding, compression molding or the like.
- Cross-linked polyolefin resin foams are widely used as laminates by bonding a resin such as a polyvinyl chloride resin, a thermoplastic elastomer, or an elastomer sheet, or a sheet-like material such as a natural or artificial cloth.
- Various cross-linked polyolefin resin foams used as interior materials for vehicles are known.
- A polypropylene resin
- B polypropylene resin
- C polyethylene resin
- the foam in order to accurately transfer the concavo-convex pattern on the mold to the sheet-like material, it is necessary to increase the molding temperature.
- the foam When the foam is heated to 160 ° C. or higher, it usually exceeds the melting point of polypropylene, which is the main component of the foam, and the foam may be broken during vacuum forming.
- the present invention has been made in view of the above problems, and even when the molding temperature is increased when molding the foam into a molded body, the foam is prevented from being broken and the moldability is improved.
- the problem is to improve.
- the inventors of the present invention have adjusted the elongation at 160 ° C. (%) and the elongation at break at 160 ° C. (%) to 100% modulus (MPa) at 160 ° C. while adjusting the degree of crosslinking to a predetermined range. It has been found that the above problem can be solved by increasing any of the multiplied values (SS coefficients), and the following invention has been completed. That is, the present invention provides the following (1) to (16). (1) In a foam having a density of 0.036 g / cc or more and less than 0.133 g / cc, the 160 ° C.
- elongation at break (%) measured according to JIS K6251 is 150% or more
- a foam having a value obtained by multiplying the elongation at break (%) by 100% modulus (MPa) measured at 160 ° C. according to JIS K6251 is 7 or more and the degree of crosslinking is 30 to 50%.
- the 160 ° C. elongation at break (%) measured according to JIS K6251 is 150% or more
- the homopolypropylene (A) is 10 to 60% by mass with respect to the total amount of the resin components in the foamable composition, and the melt flow rate is 2.5 to 20 g / 10 min.
- the foamable composition contains the random polypropylene (B) at a mass ratio of 0.16 to 8 with respect to the homopolypropylene (A), and the linear low density polyethylene (C).
- the homopolypropylene (A) according to any one of (6) to (8), wherein the homopolypropylene (A) is contained in an amount of 10% by mass or more and less than 20% by mass with respect to the total amount of the resin components in the composition.
- Foam. (10)
- the foamable composition contains the random polypropylene (B) at a mass ratio of 1.6 to 5 with respect to the homopolypropylene (A), and the linear low density polyethylene (C).
- the melt flow rate of the random polypropylene (B) is 0.4 to 2.0 g / 10 minutes, and the melt flow rate of the linear low density polyethylene (C) is 1.5 to 15 g / 10 minutes.
- a laminate comprising the foam according to any one of (1) to (13) above and a sheet-like material laminated on the foam.
- the foam is not torn during molding and the moldability is improved.
- the foam in the present invention is a foam having a density of 0.036 g / cc or more and less than 0.133 g / cc, the 160 ° C. elongation at break (%) measured according to JIS K6251 is 150% or more, and A value (hereinafter also referred to as “SS coefficient”) obtained by multiplying the elongation at break (%) by 100% modulus (MPa) measured at 160 ° C. according to JIS K6251 is 7 or more.
- This foam is less likely to be broken even if molded at a high temperature (eg, 160 ° C.
- the 160 ° C. elongation at break and SS coefficient are each preferably 400% or less and 30 or less from the viewpoint of ease of production.
- the degree of crosslinking of the foam is 30 to 50%.
- the degree of cross-linking of the foam is less than 30%, the mechanical strength of the foam is lowered and the SS coefficient is lowered, so that tearing occurs during molding, and the moldability of the foam is not good. Moreover, the shear viscosity required for foaming of the foamable composition mentioned later may not be provided.
- the degree of cross-linking exceeds 50%, the stretchability and tensile strength of the foam are lowered, and it becomes easy to cause a problem that the molded body cannot be molded accurately as it is or the tear is generated.
- the shear viscosity of the foamable composition becomes too high, the foamability is lowered, it becomes difficult to obtain a foam having a high foaming ratio, and the appearance of the foam may be lowered.
- the specific thickness of the foam is preferably 0.5 to 5.0 mm, more preferably about 1 to 4 mm. When the thickness is within these ranges, the foam can be easily formed into a vehicle interior material by vacuum forming or the like.
- the optimum values of mechanical properties such as elongation at break and modulus differ depending on the density of the foam.
- the 160 ° C. elongation at break (%) measured according to JISK6251 is 150% or more
- the SS coefficient Is preferably 7 or more Since the low-density foam as described above can be molded with a relatively weak force, the elongation at break and the SS strength do not need to be so high, and the elongation at break and the SS coefficient are above the above values. Sufficient moldability can be obtained.
- the low-density foam preferably has an elongation at break of 160 to 240% and an SS coefficient of about 7.5 to 15.
- the 160 ° C. elongation at break (%) measured according to JISK6251 is 170% or more, and the SS coefficient is 8
- the medium-low density foam sufficient formability can be obtained when the elongation at break and the SS coefficient are equal to or higher than these lower limits.
- the medium-low density foam has an elongation at break of 180 to 300% and an SS coefficient of about 8.5 to 20. More preferred.
- the 160 ° C. elongation at break (%) measured according to JISK6251 is 200% or more, and the SS coefficient is 10 or more. It is preferable that In the medium-high density foam, the elongation at break and the SS coefficient are equal to or higher than these lower limit values, and sufficient moldability is obtained. For example, by using a foamable composition described later, the elongation at break and It becomes easy to make SS coefficient more than these lower limits. Further, from the viewpoint of achieving both moldability and ease of production, it is more preferable that the medium-density foam has an elongation at break of 220 to 360% and an SS coefficient of about 12 to 25.
- the 160 ° C. elongation at break (%) measured in accordance with JISK6251 is 250% or more, and the SS coefficient is 15
- the high-density foam in order to improve the moldability, it is necessary to make the elongation at break and the SS coefficient relatively large, but by setting the lower limit value or more, sufficient moldability can be obtained. Further, for example, by using a foamable composition to be described later, the elongation at break and the SS coefficient can be easily set to the lower limit value or more in a high-density foam. Further, from the viewpoint of achieving both moldability and ease of production, the high-density foam preferably has an elongation at break of 300 to 400% and an SS coefficient of about 15 to 30.
- the foam of the present invention is obtained by crosslinking and foaming a foamable composition.
- the foam is, for example, a crosslinked polyolefin resin foam.
- the foamable composition for obtaining a crosslinked polyolefin resin foam contains, for example, homopolypropylene (A), random polypropylene (B), and linear low-density polyethylene (C).
- A homopolypropylene
- B random polypropylene
- C linear low-density polyethylene
- Homopolypropylene (A) is a propylene homopolymer and preferably has a melt flow rate (hereinafter also referred to as “MFR”) of 2.5 to 20 g / 10 min.
- MFR melt flow rate
- the MFR of the homopolypropylene (A) is 2.5 g / 10 min or more and 20 g / 10 min or less, the flowability of the resin is improved, but the flowability of the resin is prevented from becoming too high, and foaming is performed. The processability when the functional composition is processed into a foam is improved.
- the MFR of the homopolypropylene (A) is preferably 4 to 16 g / 10 minutes, and more preferably 6 to 12 g / 10 minutes.
- the homopolypropylene (A) in the foamable composition is preferably contained in an amount of 10 to 60% by mass based on the total amount of the resin components contained in the foamable composition.
- the homopolypropylene (A) is 10% by mass or more, the mechanical strength of the foam and the SS coefficient are increased, and the molded body is not easily broken during molding.
- the content is 60% by mass or less, the tensile strength, stretchability, etc. of the foam are increased, and the molded body is easy to be molded accurately as it is, and the problem of tearing is less likely to occur. Become.
- the homopolypropylene (A) is preferably 10 to 40% by mass, more preferably 10% by mass or more and less than 20% by mass with respect to the total amount of the resin components.
- both the tensile strength and SS coefficient of the foam are better while the workability from the foamable composition to the foam is improved by relatively reducing the content of the component (A). Therefore, the moldability tends to be excellent.
- Random polypropylene (B) is a copolymer obtained by random copolymerization of propylene and an ⁇ -olefin other than propylene.
- ⁇ -olefins other than propylene include ethylene having 2 carbon atoms, or 4 to 4 carbon atoms such as 1-butene, 1-pentene, 1-hexene, 4-methyl-1-pentene, 1-heptene, and 1-octene.
- the random polypropylene (B) is preferably an ethylene-propylene random copolymer.
- ⁇ -olefins may be used alone or in combination of two or more. Moreover, you may use the mixture of 2 or more types of random polypropylene as (B) component.
- the random polypropylene (B) is preferably obtained by copolymerizing 50% by weight or more and less than 100% by weight of propylene with 50% by weight or less of ⁇ -olefin other than propylene.
- propylene is 80 to 99.9% by weight and ⁇ -olefin other than propylene is 0.1 to 20% by mass with respect to all monomer components constituting the copolymer, and propylene is 90% by mass.
- the ⁇ -olefin other than propylene is 0.5 to 10% by weight
- the propylene is 95 to 99% by weight
- the ⁇ -olefin other than propylene is 1 to 5% by weight. It is even more preferable.
- Linear low density polyethylene (C) has a density of 0.910 g / cm 3 or more 0.950 g / cm 3 less than the polyethylene, preferably those density of 0.910 ⁇ 0.930g / cm 3.
- the foam contains linear low density polyethylene (C) having a low density, so that the workability when processing the foamable composition into a foam is good. Become.
- the elongation at break and the SS coefficient described above are appropriate values, and the moldability when the foam is molded into a molded body tends to be good.
- the linear low density polyethylene (C) is usually a copolymer of ethylene and a small amount of ⁇ -olefin containing ethylene as a main component (50% by mass or more, preferably 70% by mass or more of all monomers).
- ⁇ -olefin examples include those having 3 to 12 carbon atoms, preferably 4 to 10 carbon atoms. Specifically, 1-butene, 1-pentene, 1-hexene, 4-methyl-1 -Pentene, 1-heptene, 1-octene and the like.
- the foamable composition contains the random polypropylene (B) in a mass ratio of 0.16 to 8 and the linear low density polyethylene (C) in a mass ratio of 0.16 to 8 with respect to the component (A).
- the random polypropylene (B) is contained in a mass ratio of 1.6 to 5 and the linear low density polyethylene (C) is contained in a mass ratio of 1.6 to 5.
- the foamable composition has a mass ratio of 2.5 to 4.5 for the random polypropylene (B) and 1.5 to 4.4 for the linear low density polyethylene (C) with respect to the component (A). More preferably, it is contained in a mass ratio of 0, and the content (mass) of the component (B) is preferably higher than that of the component (C).
- the random polypropylene (B) is preferably 5 to 80% by mass, more preferably 15 to 60% by mass, and further preferably 40 to 60% by mass with respect to the total amount of the resin components.
- the linear low density polyethylene (C) is preferably 5 to 80% by mass, more preferably 15 to 60% by mass, and further preferably 20 to 40% by mass based on the total amount of the resin components. preferable.
- the random polypropylene (B) has an MFR of 0.4 to 2.0 g / 10 min and the linear low density polyethylene (C) has an MFR of 1.5 to 15 g / 10 min. Further, it is more preferable that the MFR of the component (B) is 0.5 to 1.5 g / 10 minutes and the MFR of the component (C) is 2 to 12 g / 10 minutes.
- the processability of the foamable composition into a foam, and the foam It becomes easy to make the moldability etc. excellent.
- the foamable composition may contain only the components (A), (B), and (C) as resin components, but within a range that does not impair the object of the present invention, (A), (B), (C) You may contain resin components other than a component.
- the resin component other than the components (A), (B), and (C) include the above-mentioned (A) such as polyethylene other than the above-mentioned component (C) such as high-density polyethylene, ethylene-propylene block copolymer, and modified polypropylene resin.
- EPM ethylene-propylene rubber
- EPDM ethylene-propylene rubber-diene rubber
- ethylene-vinyl acetate copolymer ethylene-acrylic acid copolymer
- ethylene- (meth) alkylacrylate examples thereof include a late copolymer or a modified copolymer obtained by copolymerizing maleic anhydride.
- the resin components other than the components (A), (B), and (C) are usually contained in an amount of 30% by mass or less, preferably 10% by mass or less, based on the total amount of the resin components.
- the foamable composition usually contains a foaming agent as an additive, and preferably contains one or both of a crosslinking aid and an antioxidant.
- a foaming agent a thermally decomposable foaming agent is used.
- an organic or inorganic chemical foaming agent having a decomposition temperature of about 160 to 270 ° C. can be used.
- Organic foaming agents include azodicarbonamide, azodicarboxylic acid metal salts (such as barium azodicarboxylate), azo compounds such as azobisisobutyronitrile, nitroso compounds such as N, N′-dinitrosopentamethylenetetramine, And hydrazine derivatives such as hydrazodicarbonamide, 4,4′-oxybis (benzenesulfonylhydrazide) and toluenesulfonylhydrazide, and semicarbazide compounds such as toluenesulfonyl semicarbazide.
- azodicarbonamide azodicarboxylic acid metal salts (such as barium azodicarboxylate)
- azo compounds such as azobisisobutyronitrile
- nitroso compounds such as N, N′-dinitrosopentamethylenetetramine
- hydrazine derivatives such as hydrazodicarbonamide, 4,4′
- the inorganic foaming agent examples include ammonium acid, sodium carbonate, ammonium hydrogen carbonate, sodium hydrogen carbonate, ammonium nitrite, sodium borohydride, anhydrous monosodium citrate, and the like.
- azo compounds and nitroso compounds are preferable from the viewpoint of obtaining fine bubbles, and from the viewpoints of economy and safety, and azodicarbonamide, azobisisobutyronitrile, N, N′-dinitrosopentamethylene. Tetramine is more preferred, and azodicarbonamide is particularly preferred.
- These pyrolytic foaming agents can be used alone or in combination of two or more.
- the amount of the pyrolytic foaming agent added is preferably 1 to 30 parts by weight and more preferably 2 to 15 parts by weight with respect to 100 parts by weight of the resin component so that the foam can be appropriately foamed without rupturing. preferable.
- a polyfunctional monomer can be used as a crosslinking aid.
- trifunctional (meth) acrylate compounds such as trimethylolpropane trimethacrylate and trimethylolpropane triacrylate; trimellitic acid triallyl ester, 1,2,4-benzenetricarboxylic acid triallyl ester, triallyl isocyanurate, etc.
- compound having three functional groups in one molecule; bifunctional such as 1,6-hexanediol dimethacrylate, 1,9-nonanediol dimethacrylate, 1,10-decanediol dimethacrylate, neopentyl glycol dimethacrylate, etc.
- (meth) acrylate compounds and divinylbenzene such as (meth) acrylate compounds and divinylbenzene; diallyl phthalate, diallyl terephthalate, diallyl isophthalate, ethyl vinyl benzene, lauryl methacrylate, stearyl methacrylate Over doors and the like.
- the crosslinking aids can be used alone or in combination of two or more. In these, a trifunctional (meth) acrylate type compound is more preferable.
- the foamable composition can be crosslinked with a small amount of ionizing radiation. Therefore, cutting and deterioration of each resin molecule accompanying irradiation with ionizing radiation can be prevented.
- the content of the crosslinking aid is preferably 0.2 to 20 parts by mass and more preferably 0.5 to 15 parts by mass with respect to 100 parts by mass of the resin component.
- the content is 0.2 parts by mass or more, it is easy to adjust the desired degree of crosslinking when foaming the foamable composition.
- control of the crosslinking degree provided to a foamable composition as it is 20 weight part or less becomes easy.
- Antioxidants include phenolic antioxidants, sulfur antioxidants, phosphorus antioxidants, amine antioxidants, etc. Among them, phenolic antioxidants and sulfur antioxidants are included. An agent is preferable, and it is more preferable to use a combination of a phenol-based antioxidant and a sulfur-based antioxidant.
- phenolic antioxidants include 2,6-di-tert-butyl-p-cresol, n-octadecyl-3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate, 2- tert-Butyl-6- (3-tert-butyl-2-hydroxy-5-methylbenzyl) -4-methylphenyl acrylate, tetrakis [methylene-3- (3,5-di-tert-butyl-4-hydroxyphenyl) ) Propionate] methane and the like. These phenolic antioxidants may be used alone or in combination of two or more.
- sulfur-based antioxidants examples include dilauryl thiodipropionate, dimyristyl thiodipropionate, distearyl thiodipropionate, pentaerythrityl tetrakis (3-lauryl thiopropionate), and the like. . These sulfur-based antioxidants may be used alone or in combination of two or more. The content of the antioxidant is preferably 0.1 to 10 parts by mass, more preferably 0.2 to 5 parts by mass with respect to 100 parts by mass of the resin component.
- the foam composition may contain, as necessary, decomposition temperature adjusting agents such as zinc oxide, zinc stearate and urea, flame retardants, metal harm preventing agents, antistatic agents, stabilizers, fillers, pigments, and the like. You may contain additives other than.
- the foam is obtained by converting a foamable composition containing additives (A), (B), (C), other resin components blended as necessary, and a pyrolytic foaming agent to a degree of crosslinking.
- a foamable composition containing additives (A), (B), (C), other resin components blended as necessary, and a pyrolytic foaming agent to a degree of crosslinking.
- Process step (2) to form a foamable composition in shape Step step of irradiating the foamable composition obtained in step (1) with ionizing radiation to crosslink so that the degree of crosslinking is 30 to 50% ( 3):
- the foamable composition crosslinked in step (2) is heated to a temperature higher than the decomposition temperature of the foaming agent and foamed to obtain a foam.
- Examples of the kneading apparatus in the step (1) include general-purpose kneading apparatuses such as extruders such as single-screw extruders and twin-screw extruders, Banbury mixers and rolls, and extruders are preferable.
- Examples of the ionizing radiation used in the step (2) include ⁇ rays, ⁇ rays, ⁇ rays, and electron beams, and electron beams are preferable.
- the irradiation amount of ionizing radiation is not limited as long as a desired degree of crosslinking can be obtained, but is preferably 0.1 to 10 Mrad, more preferably 0.2 to 5 Mrad, and further preferably 0.5 to 3 Mrad.
- the dose of ionizing radiation is affected by the ratio of the components (A), (B), (C), additives, and the like, the dose is usually adjusted while measuring the degree of crosslinking.
- the temperature at which the foamable composition is heated and foamed depends on the decomposition temperature of the pyrolytic foaming agent used as the foaming agent, but is usually from 140 to 300 ° C, preferably from 150 to 260 ° C.
- a foam may be extended
- the laminated body of this invention is a laminated body provided with a foam and the sheet-like raw material laminated
- the foam is sheet-like, and the sheet-like material is usually bonded to the foam.
- the sheet-like material include a resin sheet, a thermoplastic elastomer sheet, and a fabric.
- a polyvinyl chloride sheet, a mixed resin of polyvinyl chloride and ABS resin is used.
- Various fabrics such as a resin sheet, a thermoplastic elastomer sheet, a woven fabric, a knitted fabric, a nonwoven fabric, leather, artificial leather, and synthetic leather are preferably used.
- sheet-like materials are preferably arranged on the surface of the molded body when the laminate is molded into the molded body.
- the sheet material may be provided on only one surface of the foam or may be provided on both surfaces.
- the resin sheet, the thermoplastic elastomer sheet, and the fabric are laminated on one surface of the foam, and the other surface is made of polyethylene, polypropylene, or the like.
- a resin sheet may be disposed.
- the foam or laminate is molded by a known method to become a molded body.
- the molding method include vacuum molding, compression molding, stamping molding, and the like.
- vacuum molding is preferable.
- vacuum forming includes male drawing vacuum forming and female drawing vacuum forming, and female drawing vacuum forming is preferable.
- corrugation is attached
- the irregularities are usually those in which the irregularities on the surface of the mold are transferred at the time of molding.
- the molded body is preferably molded by female drawing vacuum molding.
- the molded body is used as a heat insulating material, a cushioning material, or the like, but is preferably used as an interior material for a vehicle such as a ceiling material, a door, or an instrument panel in the automobile field.
- the measurement method of each physical property and the evaluation method of the foam are as follows. (1) Crosslinking degree About 100 mg of a test piece is taken from the foam, and the weight A (mg) of the test piece is precisely weighed. Next, this test piece was immersed in 30 cm 3 of xylene at 120 ° C. and allowed to stand for 24 hours. The insoluble content on the wire mesh is collected by filtration through a mesh wire mesh, vacuum dried, and the weight B (mg) of the insoluble content is precisely weighed. From the obtained value, the degree of crosslinking (% by weight) was calculated by the following formula.
- MFR is a value measured based on JIS K7210 under conditions of a temperature of 230 ° C. for polypropylene and a load of 2.16 kgf for polyethylene and a temperature of 190 ° C. for polyethylene and a load of 2.16 kgf.
- Density The density of the foam is measured according to JISK7222.
- the density of each resin component is measured based on JISK7112.
- Elongation at break, 100% modulus The elongation at break and 100% modulus are values measured at 160 ° C. according to the method described in JIS K6251.
- the diameter of the cup is D
- the depth is H
- the ratio H / D between the depth H and the diameter D is increased to form each vacuum
- the foam sheet is torn, or a part of the foam sheet is thin.
- Formability was evaluated by the ratio H / D when a transparent portion was generated.
- the evaluation criteria are different for each density as follows.
- each resin component and additive shown in Table 1 were put into a single screw extruder in the number of parts shown in Table 1, melt kneaded and extruded at a resin temperature of 190 ° C., thickness A 1.3 mm sheet-like foamed composition was obtained.
- the foamable composition was crosslinked by irradiating both sides of the sheet-like foamed composition with an electron beam at an accelerating voltage of 800 kV and a predetermined degree of crosslinking in Table 1. Then, the crosslinked foamable composition was foamed in a gas phase oven at 250 ° C. to obtain a foamed sheet (foam).
- Table 1 shows the evaluation results of the foams of each Example and Comparative Example.
- the resin components and additives used in each example and comparative example are as follows.
- the degree of cross-linking of the foam was set to 30 to 50%, the elongation at break at 160 ° C. was increased to 150% or more, and the SS coefficient was increased to 7 or more. Property, mechanical strength and the like were improved, and the moldability of the foam at high temperature was improved.
- Comparative Examples 2 to 8 if any one of 160 ° C. elongation at break, SS coefficient, and degree of crosslinking is outside the above range, the stretchability of the foam at high temperature, mechanical strength, etc. As a result, the moldability of the foam was not sufficient.
- Comparative Examples 1 and 9 since the MFR of the homopolypropylene (A) was too low or too high, the sheet processability deteriorated and the foamable composition could not be processed into a foam.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Laminated Bodies (AREA)
Abstract
Description
すなわち、本発明は、以下の(1)~(16)を提供する。
(1)密度0.036g/cc以上0.133g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が150%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が7以上であり、架橋度が30~50%である発泡体。
(2)密度0.036g/cc以上0.044g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が150%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が7以上である上記(1)に記載の発泡体。
(3)密度0.044g/cc以上0.057g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が170%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が8以上である上記(1)に記載の発泡体。
(4)密度0.057g/cc以上0.077g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が200%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が10以上である上記(1)に記載の発泡体。
(5)密度0.077g/cc以上0.133g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が250%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が15以上である上記(1)に記載の発泡体。
(6)ホモポリプロピレン(A)と、ランダムポリプロピレン(B)と、線状低密度ポリエチレン(C)とを含む発泡性組成物を架橋し、かつ発泡してなる発泡体であって、
前記ホモポリプロピレン(A)が、発泡性組成物中の樹脂成分全量に対して10~60質量%であるとともに、メルトフローレートが2.5~20g/10分である上記(1)~(5)のいずれか1項に記載の発泡体。
(7)前記ホモポリプロピレン(A)のメルトフローレートが、6~12g/10分である上記(6)に記載の発泡体。
(8)前記発泡性組成物が、前記ホモポリプロピレン(A)に対して、前記ランダムポリプロピレン(B)を0.16~8の質量比で含有するとともに、前記線状低密度ポリエチレン(C)を0.16~8の質量比で含有する上記(6)又は(7)に記載の発泡体。
(9)前記ホモポリプロピレン(A)が、組成物中の樹脂成分全量に対して、10質量%以上20質量%未満で含有される上記(6)~(8)のいずれか1項に記載の発泡体。
(10)前記発泡性組成物が、前記ホモポリプロピレン(A)に対して、前記ランダムポリプロピレン(B)を1.6~5の質量比で含有するとともに、前記線状低密度ポリエチレン(C)を1.6~5の質量比で含有する上記(9)に記載の発泡体。
(11)前記ランダムポリプロピレン(B)のメルトフローレートが0.4~2.0g/10分であるとともに、前記線状低密度ポリエチレン(C)のメルトフローレートが1.5~15g/10分である上記(6)~(10)のいずれか1項に記載の発泡体。
(12)前記ランダムポリプロピレン(B)が、エチレン-プロピレンランダム共重合体である上記(6)~(11)のいずれか1項に記載の発泡体。
(13)厚みが0.5~5.0mmでシート状である上記(1)~(12)のいずれか1項に記載の発泡体。
(14)上記(1)~(13)のいずれか1項に記載の発泡体と、この発泡体に積層されるシート状素材とを備える積層体。
(15)上記(1)~(13)のいずれか1項に記載の発泡体、又は上記(14)に記載の積層体を成形して得られた成形体。
(16)上記(14)に記載の積層体を、成形して得られたものであって、前記シート状素材表面に凹凸が付された成形体。
<発泡体>
本発明における発泡体は、密度0.036g/cc以上0.133g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が150%以上であり、かつ、この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値(以下、「SS係数」ともいう)が7以上となるものである。
本発泡体は、密度を所定範囲としつつ、破断伸び及びSS係数を上記のように高くすることで、高温(例えば、160℃以上)で成形しても発泡体に破れ等が生じにくくなり、車輌用内装材等の各種成形体に成形するのに適したものとなる。
一方で、160℃破断点伸び(%)が150%未満となったり、SS係数が7未満となったりすると、発泡体を高温で成形体に成形する際、発泡体に破れ等が生じて、成形性を良好にすることが困難になる。また、密度が0.036g/cc未満となったり、0.133g/ccより高くなったりすると、柔軟性、機械強度等の車輌用内装材等の成形体に求められる物性が得られにくくなる。
また、特に限定されないが、160℃破断点伸び及びSS係数それぞれは、製造の容易性等の観点から、400%以下、30以下であることが好ましい。
一方、架橋度が50%を超えると、発泡体の伸縮性、引張強度が低下し、成形体を型通りに正確に成形できなかったり、破れが生じたりする不具合が生じやすくなる。また、発泡性組成物の剪断粘度が高くなりすぎて発泡性が低下し、発泡倍率の高い発泡体を得にくくなると共に、発泡体の外観性が低下することもある。
なお、架橋度は、実施例に記載の方法で、溶媒不溶解分を採取し、試験片の重量Aと不溶解分の重量Bを求め、下記式により算出される。
架橋度(重量%)=(B/A)×100
発泡体の成形性や機械特性をより良好にする観点から、発泡体の架橋度は、32~48%が好ましく、35~45%がより好ましい。
また、発泡体は、シート状であることが好ましい。発泡体の具体的な厚みは、0.5~5.0mmであることが好ましく、1~4mm程度であることがより好ましい。厚みがこれら範囲であると、発泡体を真空成形等により車輌用内装材に成形しやすくなる。
上記のような低密度の発泡体においては、比較的弱い力で成形可能であるので、破断点伸び、SS強度はそれほど高くする必要はなく、破断点伸び、SS係数が上記の値以上となると、十分な成形性が得られる。また、例えば後述する発泡体組成物を使用することで、低密度の発泡体でも、これら破断点伸び及びSS係数を有する発泡体を容易に製造することが可能となる。
製造の容易性と成形性を両立する観点から、上記低密度の発泡体においては破断点伸びが160~240%であるとともに、SS係数が7.5~15程度であることがより好ましい。
本発明の発泡体は、発泡性組成物を架橋し、かつ発泡してなるものである。発泡体は、例えば、架橋ポリオレフィン系樹脂発泡体である。架橋ポリオレフィン系樹脂発泡体を得るための発泡性組成物は、例えば、ホモポリプロピレン(A)と、ランダムポリプロピレン(B)と、線状低密度ポリエチレン(C)とを含む。発泡性組成物が、これら(A)~(C)成分を含有し、かつ(A)成分の量を後述する所定量とすることで、発泡体の160℃破断点伸び(%)及びSS係数を上記した所定値以上としやすくなる。
[(A)成分]
ホモポリプロピレン(A)は、プロプレン単独重合体であり、そのメルトフローレート(以下、「MFR」ともいう)が2.5~20g/10分となることが好ましい。ホモポリプロピレン(A)のMFRが2.5g/10分以上20g/10分以下となることで、樹脂の流れ性が良好になる一方で、樹脂の流動性が高くなりすぎるのが防止され、発泡性組成物を発泡体に加工する際の加工性が良好になる。そのため、例えば、発泡体の表面に荒れが生じたり、発泡性組成物をシート状の発泡体に加工することが難しくなったりすることが防止される。
上記加工性を良好にする観点から、ホモポリプロピレン(A)のMFRは、4~16g/10分が好ましく、6~12g/10分がより好ましい。
ホモポリプロピレン(A)は、樹脂成分全量に対して、10~40質量%が好ましく、10質量%以上20質量%未満となることがより好ましい。本発明においては、(A)成分の含有量を比較的少なくすることで、発泡性組成物から発泡体への加工性を良好にしつつ、発泡体の引張強度及びSS係数のいずれもがより良好となり、成形性が優れたものになりやすい。
ランダムポリプロピレン(B)は、プロピレンと、プロピレン以外のα-オレフィンとをランダム共重合させて得られる共重合体である。プロピレン以外のα-オレフィンとしては、炭素数2のエチレン、又は、1-ブテン、1-ペンテン、1-ヘキセン、4-メチル-1-ペンテン、1-ヘプテン、1-オクテンなどの炭素数4~10程度のα-オレフィンが挙げられるが、これらの中では、成形性及び耐熱性の観点から、エチレンが好ましい。すなわち、ランダムポリプロピレン(B)は、エチレン-プロピレンランダム共重合体であることが好ましい。
また、共重合体において、α-オレフィンは単独で又は2種以上を組み合わせて用いることができる。また、(B)成分としては、2種以上のランダムポリプロピレンの混合物を用いてもよい。
線状低密度ポリエチレン(C)は、通常、エチレンを主成分(全モノマーの50質量%以上、好ましくは70質量%以上)とした、エチレンと少量のα-オレフィンの共重合体である。ここで、α-オレフィンとしては、炭素数3~12、好ましくは炭素数4~10のものが挙げられ、具体的には、1-ブテン、1-ペンテン、1-ヘキセン、4-メチル-1-ペンテン、1-ヘプテン、1-オクテンなどが挙げられる。
また、ランダムポリプロピレン(B)は、樹脂成分全量に対して、5~80質量%であることが好ましく、15~60質量%であることがより好ましく、40~60質量%であることがさらに好ましい。線状低密度ポリエチレン(C)は、樹脂成分全量に対して、5~80質量%であることが好ましく、15~60質量%であることがより好ましく、20~40質量%であることがさらに好ましい。
発泡性組成物は、樹脂成分として(A)、(B)、及び(C)成分のみ含有してもよいが、本発明の目的を阻害しない範囲であれば、(A)、(B)、(C)成分以外の樹脂成分を含有してもよい。(A)、(B)、(C)成分以外の樹脂成分としては、高密度ポリエチレン等の上記(C)成分以外のポリエチレン、エチレン-プロピレンブロック共重合体、変性ポリプロピレン樹脂等の上記(A)、(B)成分以外のポリプロピレン、エチレン-プロピレンゴム(EPM)、エチレン-プロピレンゴム-ジエンゴム(EPDM)、エチレン-酢酸ビニル共重合体、エチレン-アクリル酸共重合体、エチレン-(メタ)アルキルアクリレ-ト共重合体、又はこれらに無水マレイン酸を共重合した変性共重合体等が挙げられる。(A)、(B)、(C)成分以外の樹脂成分としては、樹脂成分全量に対して、通常30質量%以下含有され、好ましくは10質量%以下含有される。
発泡性組成物は、添加剤として発泡剤を通常含有するものであり、また、架橋助剤及び酸化防止剤の一方又は両方を含有することが好ましい。
(発泡剤)
発泡剤としては、熱分解型発泡剤が使用され、例えば分解温度が160~270℃程度の有機系又は無機系の化学発泡剤を用いることができる。
有機系発泡剤としては、アゾジカルボンアミド、アゾジカルボン酸金属塩(アゾジカルボン酸バリウム等)、アゾビスイソブチロニトリル等のアゾ化合物、N,N'-ジニトロソペンタメチレンテトラミン等のニトロソ化合物、ヒドラゾジカルボンアミド、4,4’-オキシビス(ベンゼンスルホニルヒドラジド)、トルエンスルホニルヒドラジド等のヒドラジン誘導体、トルエンスルホニルセミカルバジド等のセミカルバジド化合物等が挙げられる。
無機系発泡剤としては、酸アンモニウム、炭酸ナトリウム、炭酸水素アンモニウム、炭酸水素ナトリウム、亜硝酸アンモニウム、水素化ホウ素ナトリウム、無水クエン酸モノソーダ等が挙げられる。
これらの中では、微細な気泡を得る観点、及び経済性、安全面の観点から、アゾ化合物、ニトロソ化合物が好ましく、アゾジカルボンアミド、アゾビスイソブチロニトリル、N,N'-ジニトロソペンタメチレンテトラミンがより好ましく、アゾジカルボンアミドが特に好ましい。これらの熱分解型発泡剤は、単独で又は2以上を組み合わせて使用することができる。
熱分解型発泡剤の添加量は、発泡体の気泡が破裂せずに適切に発泡ができるように、樹脂成分100質量部に対して1~30質量部が好ましく、2~15質量部がより好ましい。
架橋助剤としては、多官能モノマーを使用することができる。例えば、トリメチロールプロパントリメタクリレート、トリメチロールプロパントリアクリレート等の3官能(メタ)アクリレート系化合物;トリメリット酸トリアリルエステル、1,2,4-ベンゼントリカルボン酸トリアリルエステル、トリアリルイソシアヌレート等の1分子中に3個の官能基を持つ化合物;1,6-ヘキサンジオールジメタクリレート、1,9-ノナンジオールジメタクリレート、1,10-デカンジオールジメタクリレート、ネオペンチルグリコールジメタクリレート等の2官能(メタ)アクリレート系化合物、ジビニルベンゼン等の1分子中に2個の官能基を持つ化合物;フタル酸ジアリル、テレフタル酸ジアリル、イソフタル酸ジアリル、エチルビニルベンゼン、ラウリルメタクリレート、ステアリルメタクリレート等が挙げられる。架橋助剤は、単独で又は2以上を組み合わせて使用することができる。これらの中では、3官能(メタ)アクリレート系化合物がより好ましい。
架橋助剤を発泡性組成物に添加することによって、少ない電離性放射線量で発泡性組成物を架橋することが可能になる。そのため、電離性放射線の照射に伴う各樹脂分子の切断、劣化を防止することができる。
架橋助剤の含有量は、樹脂成分100質量部に対して0.2~20質量部が好ましく、0.5~15質量部がより好ましい。この含有量が0.2質量部以上であると発泡性組成物を発泡する際、所望する架橋度に調整しやすくなる。また、20重量部以下であると発泡性組成物に付与する架橋度の制御が容易となる。
酸化防止剤としては、フェノール系酸化防止剤、イオウ系酸化防止剤、リン系酸化防止剤、アミン系酸化防止剤等が挙げられるが、これらの中では、フェノール系酸化防止剤、イオウ系酸化防止剤が好ましく、フェノール系酸化防止剤とイオウ系酸化防止剤とを組み合わせて使用することがより好ましい。
例えば、フェノール系酸化防止剤としては、2,6-ジ-tert-ブチル-p-クレゾール、n-オクタデシル-3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート、2-tert-ブチル-6-(3-tert-ブチル-2-ヒドロキシ-5-メチルベンジル)-4-メチルフェニルアクリレート、テトラキス[メチレン-3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート]メタン等が挙げられる。これらのフェノール系酸化防止剤は、単独で用いられてもよいし、2種類以上が併用されてもよい。
また、硫黄系酸化防止剤としては、例えば、ジラウリルチオジプロピオネート、ジミリスチルチオジプロピオネート、ジステアリルチオジプロピオネート、ペンタエリスリチルテトラキス(3-ラウリルチオプロピオネート)等が挙げられる。これらの硫黄系酸化防止剤は、単独で用いられても良いし、2種類以上が併用されても良い。
酸化防止剤の含有量は、樹脂成分100質量部に対して0.1~10質量部が好ましく、0.2~5質量部がより好ましい。
また、発泡体組成物は、必要に応じて、酸化亜鉛、ステアリン酸亜鉛、尿素等の分解温度調整剤、難燃剤、金属害防止剤、帯電防止剤、安定剤、充填剤、顔料等の上記以外の添加剤を含有してもよい。
発泡体は、例えば(A)、(B)、(C)成分、必要に応じて配合されるその他樹脂成分、及び熱分解型発泡剤等の添加剤を含有する発泡性組成物を、架橋度が30~50%になるように架橋した後、加熱発泡させることにより製造することができる。具体的には、以下の工程(1)~(3)を有する方法により製造することが工業的に有利である。
工程(1):熱分解型発泡剤を含む発泡性組成物の各成分を混練装置に供給して、熱分解型発泡剤の分解温度未満の温度で溶融、混練した後、シート状等の所望形状の発泡性組成物とする工程
工程(2):工程(1)で得た発泡性組成物に電離性放射線を照射して、架橋度が30~50%になるように架橋する工程
工程(3):工程(2)で架橋した発泡性組成物を、発泡剤の分解温度以上に加熱して発泡させ、発泡体を得る工程
また、工程(2)において使用される電離性放射線としては、α線、β線、γ線、電子線等を挙げることができるが、電子線が好ましい。電離性放射線の照射量は、所望の架橋度を得ることができればよいが、0.1~10Mradが好ましく、0.2~5Mradがより好ましく、0.5~3Mradが更に好ましい。電離性放射線の照射量は、(A)、(B)、(C)成分の比率や添加剤等の影響があるため、通常は架橋度を測定しながら照射量を調整する。
工程(3)において、発泡性組成物を加熱発泡させる温度は、発泡剤として使用される熱分解型発泡剤の分解温度によるが、通常140~300℃、好ましくは150~260℃である。また、工程(3)においては、発泡体は、発泡後、又は発泡されつつMD方向又はCD方向の何れか一方又は双方に延伸されてもよい。
本発明の積層体は、発泡体と、この発泡体に積層されるシート状素材とを備える積層体である。積層体において、発泡体はシート状であるとともに、シート状素材は、通常、発泡体に接着される。シート状素材としては、樹脂シート、熱可塑性エラストマーシート、布帛等が挙げられ、積層体が車輌用内装材に使用される場合には、ポリ塩化ビニルシート、ポリ塩化ビニルとABS樹脂との混合樹脂からなる樹脂シート、熱可塑性エラストマーシート、織物、編物、不織布、皮革、人工皮革、合成皮革等の各種の布帛が好ましくは使用される。これらシート状素材は、積層体が成形体に成形された際、成形体において表面に配置されることが好ましい。
また、積層体において上記シート状素材は、発泡体の一方の面のみに設けられてもよいし、両面に設けられてもよい。例えば、積層体が車輌用内装材に使用される場合には、発泡体の一方の面に上記樹脂シート、熱可塑性エラストマーシート、布帛が積層されるとともに、他方の面にポリエチレン、ポリプレン等からなる樹脂シートが配置されてもよい。
本発明においては、上記発泡体又は積層体は、公知の方法で成形されて、成形体となるものである。成形方法としては、真空成形、圧縮成形、スタンピング成形等が挙げられるが、これらの中では真空成形が好ましい。また、真空成形には雄引き真空成形、雌引き真空成形があるが、雌引き真空成形であることが好ましい。
また、成形体がシート状素材を有する積層体を成形したものである場合には、シート状素材の表面には凹凸が付されることが好ましい。凹凸は、通常、成形時に型の表面の凹凸が転写されたものであるが、その際、成形体は雌引き真空成形により成形されることが好ましい。
成形体は、断熱材、クッション材等として使用されるが、好ましくは、自動車分野において、天井材、ドア、インスツルメントパネル等の車輌用内装材として使用される。
(1)架橋度
発泡体から約100mgの試験片を採取し、試験片の重量A(mg)を精秤する。次に、この試験片を120℃のキシレン30cm3中に浸漬して24時間放置した後、200
メッシュの金網で濾過して金網上の不溶解分を採取、真空乾燥し、不溶解分の重量B(mg)を精秤する。得られた値から、下記式により架橋度(重量%)を算出した。
架橋度(重量%)=100×(B/A)
(2)MFR
MFRは、JIS K7210に基づき、ポリプロピレンは温度230℃、荷重2.16kgf、ポリエチレンは温度190℃、荷重2.16kgfの条件で測定された値である。
(3)密度
発泡体の密度はJISK 7222に準拠して測定したものである。また、各樹脂成分の密度はJISK7112に準拠して測定したものである。
(4)破断点伸び、100%モジュラス
破断点伸び及び100%モジュラスは、160℃において、JIS K6251に記載の方法に準拠して測定した値である。
(5)シート加工性
各実施例、比較例で得られた発泡シートについて、以下の評価基準で評価し、発泡性組成物を発泡シートに加工する際の加工性を確認した。
A:表面が荒れておらず、表面状態が良好である。
B:少し表面が荒れているが実用上問題ない。
C:表面が荒れており、実用上使用できない。
D:シート状に成形することができない。
(6)成形性
各実施例、比較例の発泡シートを、表面温度160℃でメス引きカップで真空成形して、成形性を評価した。カップの直径をD、深さをHとし、深さHと直径Dの比H/Dを大きくして各々真空成形していき、発泡シートに破れが生じ、或いは、発泡シートの一部に薄く透明となる部分が生じたときの比H/Dにより成形性を評価した。
なお、実用上、発泡体の密度に応じて、成形体の大きさも異なるため、評価基準は、以下のように密度毎に異なるものとした。
(評価基準)
・密度:0.036g/cc以上0.044g/cc未満
A:0.8<H/D B:0.75<H/D≦0.8
C:0.7<H/D≦0.75 D: H/D≦0.7
・密度:0.044g/cc以上0.057g/cc未満
A:0.82<H/D B:0.77<H/D≦0.82
C:0.72<H/D≦0.77 D: H/D≦0.72
・密度:0.057g/cc以上0.077g/cc未満
A:0.84<H/D B:0.79<H/D≦0.84
C:0.74<H/D≦0.79 D: H/D≦0.74
・密度:0.077g/cc以上0.133g/cc未満
A:0.86<H/D B:0.81<H/D≦0.86
C:0.76<H/D≦0.81 D: H/D≦0.76
各実施例、比較例において、表1に示す各樹脂成分及び添加剤を、表1に示した部数で単軸押出機に投入して、樹脂温度190℃にて溶融混練して押し出し、厚さ1.3mmのシート状の発泡組成物を得た。このシート状の発泡組成物の両面に加速電圧800kVで電子線を所定の架橋度になるよう、表1の照射量で照射することにより発泡性組成物を架橋した。その後、架橋した発泡性組成物を250℃の気相オーブンで発泡させて発泡シート(発泡体)とした。各実施例、比較例の発泡体の評価結果を表1に示す。
ホモPP1:ホモポリプロピレン、製品名:J105G、プライムポリマー社製、MFR=9g/10分
ホモPP2:ホモポリプロピレン、製品名:J106G、プライムポリマー社製、MFR=15g/10分
ホモPP3:ホモポリプロピレン、製品名:EA7AD、日本ポリプロ社製、MFR=1.3g/10分
ホモPP4:ホモポリプロピレン、製品名:J3000GP、プライムポリマー社製、MFR=30g/10分
ホモPP5:ホモポリプロピレン、製品名:Y400-GP、プライムポリマー社製、MFR=4g/10分
ランダムPP:エチレン-プロピレンランダム共重合体、製品名:EG8、日本ポリプロ社製、MFR=0.8g/10分、エチレン量:3質量%
LLDPE:線状低密度ポリエチレン、製品名:2047G、ダウケミカル日本社製、MFR=2.3g/10分
架橋助剤:トリメチロールプロパントリメタクリレート
発泡剤:アゾジカルボンアミド
酸化防止剤1:2,6-ジ-tert-ブチル-p-クレゾール
酸化防止剤2:ジラウリルチオジプロピオネート
一方で、比較例2~8から明らかなように、160℃破断伸び、SS係数、及び架橋度のいずれか1つでも上記範囲外となると、高温下での発泡体の伸縮性、機械強度等が低下して、発泡体の成形性は十分なものにならなかった。なお、比較例1、9では、ホモポリプロピレン(A)のMFRが低すぎ、又は高すぎたため、シート加工性が悪くなり、発泡性組成物を発泡体に加工することができなかった。
Claims (16)
- 密度0.036g/cc以上0.133g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が150%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が7以上であり、架橋度が30~50%である発泡体。 - 密度0.036g/cc以上0.044g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が150%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が7以上である請求項1に記載の発泡体。 - 密度0.044g/cc以上0.057g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が170%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が8以上である請求項1に記載の発泡体。 - 密度0.057g/cc以上0.077g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が200%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が10以上である請求項1に記載の発泡体。 - 密度0.077g/cc以上0.133g/cc未満の発泡体において、JIS K6251に準じて測定された160℃破断点伸び(%)が250%以上あり、
この破断点伸び(%)に、JIS K6251に準じて160℃で測定された100%モジュラス(MPa)を乗じた値が15以上である請求項1に記載の発泡体。 - ホモポリプロピレン(A)と、ランダムポリプロピレン(B)と、線状低密度ポリエチレン(C)とを含む発泡性組成物を架橋し、かつ発泡してなる発泡体であって、
前記ホモポリプロピレン(A)が、発泡性組成物中の樹脂成分全量に対して10~60質量%であるとともに、メルトフローレートが2.5~20g/10分である請求項1~5のいずれか1項に記載の発泡体。 - 前記ホモポリプロピレン(A)のメルトフローレートが、6~12g/10分である請求項6に記載の発泡体。
- 前記発泡性組成物が、前記ホモポリプロピレン(A)に対して、前記ランダムポリプロピレン(B)を0.16~8の質量比で含有するとともに、前記線状低密度ポリエチレン(C)を0.16~8の質量比で含有する請求項6又は7に記載の発泡体。
- 前記ホモポリプロピレン(A)が、組成物中の樹脂成分全量に対して、10質量%以上20質量%未満で含有される請求項6~8のいずれか1項に記載の発泡体。
- 前記発泡性組成物が、前記ホモポリプロピレン(A)に対して、前記ランダムポリプロピレン(B)を1.6~5の質量比で含有するとともに、前記線状低密度ポリエチレン(C)を1.6~5の質量比で含有する請求項9に記載の発泡体。
- 前記ランダムポリプロピレン(B)のメルトフローレートが0.4~2.0g/10分であるとともに、前記線状低密度ポリエチレン(C)のメルトフローレートが1.5~15g/10分である請求項6~10のいずれか1項に記載の発泡体。
- 前記ランダムポリプロピレン(B)が、エチレン-プロピレンランダム共重合体である請求項6~11のいずれか1項に記載の発泡体。
- 厚みが0.5~5.0mmでシート状である請求項1~12のいずれか1項に記載の発泡体。
- 請求項1~13のいずれか1項に記載の発泡体と、この発泡体に積層されるシート状素材とを備える積層体。
- 請求項1~13のいずれか1項に記載の発泡体、又は請求項14に記載の積層体を成形して得られた成形体。
- 請求項14に記載の積層体を、成形して得られたものであって、前記シート状素材表面に凹凸が付された成形体。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2960463A CA2960463A1 (en) | 2014-09-10 | 2015-09-09 | Foam, laminate, and formed product |
CN201580047691.3A CN106795311B (zh) | 2014-09-10 | 2015-09-09 | 发泡体、叠层体和成型体 |
US15/509,578 US10442908B2 (en) | 2014-09-10 | 2015-09-09 | Foam, laminate, and formed product |
EP15839885.9A EP3192828A4 (en) | 2014-09-10 | 2015-09-09 | Foam, laminate, and formed product |
JP2016515161A JP6859103B2 (ja) | 2014-09-10 | 2015-09-09 | 発泡体、積層体及び成形体 |
KR1020177006314A KR102517797B1 (ko) | 2014-09-10 | 2015-09-09 | 발포체, 적층체 및 성형체 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014184305 | 2014-09-10 | ||
JP2014-184305 | 2014-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016039400A1 true WO2016039400A1 (ja) | 2016-03-17 |
Family
ID=55459144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/075663 WO2016039400A1 (ja) | 2014-09-10 | 2015-09-09 | 発泡体、積層体及び成形体 |
Country Status (8)
Country | Link |
---|---|
US (1) | US10442908B2 (ja) |
EP (1) | EP3192828A4 (ja) |
JP (1) | JP6859103B2 (ja) |
KR (1) | KR102517797B1 (ja) |
CN (1) | CN106795311B (ja) |
CA (1) | CA2960463A1 (ja) |
TW (1) | TWI668257B (ja) |
WO (1) | WO2016039400A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020196859A (ja) * | 2019-05-31 | 2020-12-10 | 住友化学株式会社 | 熱可塑性エラストマー組成物およびその製造方法 |
JP2021046506A (ja) * | 2019-09-19 | 2021-03-25 | 積水化学工業株式会社 | 発泡体シート |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018182034A1 (ja) * | 2017-03-31 | 2018-10-04 | 積水化学工業株式会社 | 発泡体及び成形体 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004149665A (ja) * | 2002-10-30 | 2004-05-27 | Sekisui Chem Co Ltd | 架橋オレフィン系樹脂発泡体 |
JP2004339362A (ja) * | 2003-05-15 | 2004-12-02 | Sekisui Chem Co Ltd | 架橋ポリオレフィン系樹脂発泡体及び成形品 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5134314A (en) | 1974-09-17 | 1976-03-24 | Toyota Motor Co Ltd | Rootaripisuton no haujinguichigimenotsukupinsochi |
US3981545A (en) | 1975-07-30 | 1976-09-21 | Aspro, Incorporated | Traction control apparatus |
JPH0480237A (ja) * | 1990-07-20 | 1992-03-13 | Tonen Chem Corp | 架橋発泡体用ポリオレフィン樹脂組成物 |
JPH05295149A (ja) * | 1992-04-14 | 1993-11-09 | Tonen Chem Corp | ポリオレフィン架橋発泡体用樹脂組成物 |
JPH06192461A (ja) * | 1992-12-25 | 1994-07-12 | Tonen Chem Corp | ポリプロピレン架橋発泡体の製造方法 |
IT1264681B1 (it) | 1993-07-07 | 1996-10-04 | Himont Inc | Composizione poliolefiniche parzialmente reticolate |
JP2004075976A (ja) * | 2002-06-21 | 2004-03-11 | Sekisui Chem Co Ltd | 架橋ポリオレフィン系樹脂発泡体及びその製造方法 |
JP2004339361A (ja) | 2003-05-15 | 2004-12-02 | Sekisui Chem Co Ltd | 架橋ポリオレフィン系樹脂発泡体 |
EP1647384B1 (en) | 2004-10-18 | 2008-09-17 | Alveo AG | Combined compression and shearing process for the production of a crushed polyolefin foam and product obtained thereby |
CN101175801B (zh) * | 2005-05-18 | 2010-08-18 | 东丽株式会社 | 交联聚烯烃类树脂发泡体 |
JP5208865B2 (ja) * | 2008-06-25 | 2013-06-12 | トヨタ紡織株式会社 | 自動車用内装材 |
-
2015
- 2015-09-09 US US15/509,578 patent/US10442908B2/en active Active
- 2015-09-09 CA CA2960463A patent/CA2960463A1/en not_active Abandoned
- 2015-09-09 WO PCT/JP2015/075663 patent/WO2016039400A1/ja active Application Filing
- 2015-09-09 JP JP2016515161A patent/JP6859103B2/ja active Active
- 2015-09-09 CN CN201580047691.3A patent/CN106795311B/zh active Active
- 2015-09-09 EP EP15839885.9A patent/EP3192828A4/en active Pending
- 2015-09-09 KR KR1020177006314A patent/KR102517797B1/ko active IP Right Grant
- 2015-09-10 TW TW104129911A patent/TWI668257B/zh active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004149665A (ja) * | 2002-10-30 | 2004-05-27 | Sekisui Chem Co Ltd | 架橋オレフィン系樹脂発泡体 |
JP2004339362A (ja) * | 2003-05-15 | 2004-12-02 | Sekisui Chem Co Ltd | 架橋ポリオレフィン系樹脂発泡体及び成形品 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3192828A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020196859A (ja) * | 2019-05-31 | 2020-12-10 | 住友化学株式会社 | 熱可塑性エラストマー組成物およびその製造方法 |
JP7446822B2 (ja) | 2019-05-31 | 2024-03-11 | 住友化学株式会社 | 熱可塑性エラストマー組成物およびその製造方法 |
JP2021046506A (ja) * | 2019-09-19 | 2021-03-25 | 積水化学工業株式会社 | 発泡体シート |
Also Published As
Publication number | Publication date |
---|---|
CN106795311A (zh) | 2017-05-31 |
EP3192828A1 (en) | 2017-07-19 |
CA2960463A1 (en) | 2016-03-17 |
TW201623387A (zh) | 2016-07-01 |
JP6859103B2 (ja) | 2021-04-14 |
TWI668257B (zh) | 2019-08-11 |
CN106795311B (zh) | 2020-07-07 |
KR20170049517A (ko) | 2017-05-10 |
US10442908B2 (en) | 2019-10-15 |
EP3192828A4 (en) | 2018-01-24 |
JPWO2016039400A1 (ja) | 2017-06-22 |
KR102517797B1 (ko) | 2023-04-05 |
US20170260349A1 (en) | 2017-09-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6698517B2 (ja) | 架橋ポリオレフィン系発泡体 | |
JP7240448B2 (ja) | 架橋ポリオレフィン発泡体、及びそれを用いた成形体 | |
WO2016158701A1 (ja) | 架橋ポリオレフィン系樹脂発泡体 | |
JP6846342B2 (ja) | 架橋ポリオレフィン系樹脂発泡体、及びそれを用いた成形体 | |
WO2016039400A1 (ja) | 発泡体、積層体及び成形体 | |
JP6696807B2 (ja) | 積層発泡シート、及びそれを用いた成形体 | |
WO2018182034A1 (ja) | 発泡体及び成形体 | |
JP7160615B2 (ja) | 架橋ポリオレフィン系樹脂発泡体 | |
JP6974312B2 (ja) | 架橋ポリオレフィン発泡体、及びそれを用いた成形体 | |
JP5905660B2 (ja) | 架橋ポリオレフィン系樹脂発泡体の製造方法及び該樹脂発泡体を用いた積層品 | |
JP7377047B2 (ja) | ポリオレフィン系樹脂発泡体シート、及びその製造方法 | |
JP7020983B2 (ja) | 複合発泡シート及び成形体 | |
JP2021046506A (ja) | 発泡体シート | |
JP2022057092A (ja) | 発泡体及び車両用内装材 | |
JP2020163756A (ja) | 複合発泡シート及び成形体 | |
JP2022019933A (ja) | 架橋ポリオレフィン系樹脂発泡体、架橋ポリオレフィン系樹脂発泡体の製造方法、及び凹状成形体 | |
JPH08302054A (ja) | 架橋ポリオレフィン系樹脂発泡体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2016515161 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15839885 Country of ref document: EP Kind code of ref document: A1 |
|
REEP | Request for entry into the european phase |
Ref document number: 2015839885 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2015839885 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20177006314 Country of ref document: KR Kind code of ref document: A Ref document number: 2960463 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15509578 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |