CN115243906A - Rubber composition based on an epoxy resin and a hardener having high retardation - Google Patents
Rubber composition based on an epoxy resin and a hardener having high retardation Download PDFInfo
- Publication number
- CN115243906A CN115243906A CN202180020014.8A CN202180020014A CN115243906A CN 115243906 A CN115243906 A CN 115243906A CN 202180020014 A CN202180020014 A CN 202180020014A CN 115243906 A CN115243906 A CN 115243906A
- Authority
- CN
- China
- Prior art keywords
- urea
- rubber composition
- group
- composition according
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 134
- 229920001971 elastomer Polymers 0.000 title claims abstract description 101
- 239000005060 rubber Substances 0.000 title claims abstract description 76
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 38
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 37
- 239000004848 polyfunctional curative Substances 0.000 title abstract description 15
- 229920003244 diene elastomer Polymers 0.000 claims abstract description 32
- 238000004132 cross linking Methods 0.000 claims abstract description 23
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 19
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 44
- 150000001875 compounds Chemical class 0.000 claims description 40
- -1 urea compound Chemical class 0.000 claims description 38
- 239000004202 carbamide Substances 0.000 claims description 37
- 239000000806 elastomer Substances 0.000 claims description 25
- 125000004432 carbon atom Chemical group C* 0.000 claims description 19
- GWEHVDNNLFDJLR-UHFFFAOYSA-N 1,3-diphenylurea Chemical compound C=1C=CC=CC=1NC(=O)NC1=CC=CC=C1 GWEHVDNNLFDJLR-UHFFFAOYSA-N 0.000 claims description 16
- 125000003118 aryl group Chemical group 0.000 claims description 13
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 10
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 9
- LUBJCRLGQSPQNN-UHFFFAOYSA-N 1-Phenylurea Chemical compound NC(=O)NC1=CC=CC=C1 LUBJCRLGQSPQNN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 claims description 5
- 150000003254 radicals Chemical class 0.000 claims description 5
- MGJKQDOBUOMPEZ-UHFFFAOYSA-N N,N'-dimethylurea Chemical compound CNC(=O)NC MGJKQDOBUOMPEZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 239000011265 semifinished product Substances 0.000 claims description 4
- 239000004844 aliphatic epoxy resin Substances 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 239000011353 cycloaliphatic epoxy resin Substances 0.000 claims description 3
- 125000005842 heteroatom Chemical group 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 3
- 150000005840 aryl radicals Chemical class 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 description 25
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 23
- 239000000945 filler Substances 0.000 description 18
- 239000011256 inorganic filler Substances 0.000 description 18
- 229910003475 inorganic filler Inorganic materials 0.000 description 17
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Natural products CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 16
- 229920001577 copolymer Polymers 0.000 description 13
- 150000001993 dienes Chemical class 0.000 description 12
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 description 12
- 239000006229 carbon black Substances 0.000 description 11
- 235000019241 carbon black Nutrition 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 11
- 229920005989 resin Polymers 0.000 description 11
- 239000011347 resin Substances 0.000 description 11
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 11
- 244000043261 Hevea brasiliensis Species 0.000 description 10
- 229920003052 natural elastomer Polymers 0.000 description 10
- 229920001194 natural rubber Polymers 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 7
- 239000007822 coupling agent Substances 0.000 description 7
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 7
- 229920003049 isoprene rubber Polymers 0.000 description 7
- 229910052717 sulfur Inorganic materials 0.000 description 7
- 229920003051 synthetic elastomer Polymers 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 7
- 239000000370 acceptor Substances 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 229920003986 novolac Polymers 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 241001441571 Hiodontidae Species 0.000 description 5
- 239000000654 additive Substances 0.000 description 5
- 239000011324 bead Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 150000001282 organosilanes Chemical class 0.000 description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 239000004594 Masterbatch (MB) Substances 0.000 description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000001588 bifunctional effect Effects 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 238000004898 kneading Methods 0.000 description 4
- 239000012764 mineral filler Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000000930 thermomechanical effect Effects 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- KFUSXMDYOPXKKT-UHFFFAOYSA-N 2-[(2-methylphenoxy)methyl]oxirane Chemical compound CC1=CC=CC=C1OCC1OC1 KFUSXMDYOPXKKT-UHFFFAOYSA-N 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- RGHHSNMVTDWUBI-UHFFFAOYSA-N 4-hydroxybenzaldehyde Chemical compound OC1=CC=C(C=O)C=C1 RGHHSNMVTDWUBI-UHFFFAOYSA-N 0.000 description 2
- 229920003319 Araldite® Polymers 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 150000004982 aromatic amines Chemical class 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 150000001721 carbon Chemical group 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 2
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 235000010299 hexamethylene tetramine Nutrition 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical class S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 1
- NVZWEEGUWXZOKI-UHFFFAOYSA-N 1-ethenyl-2-methylbenzene Chemical compound CC1=CC=CC=C1C=C NVZWEEGUWXZOKI-UHFFFAOYSA-N 0.000 description 1
- JZHGRUMIRATHIU-UHFFFAOYSA-N 1-ethenyl-3-methylbenzene Chemical compound CC1=CC=CC(C=C)=C1 JZHGRUMIRATHIU-UHFFFAOYSA-N 0.000 description 1
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- QEDJMOONZLUIMC-UHFFFAOYSA-N 1-tert-butyl-4-ethenylbenzene Chemical compound CC(C)(C)C1=CC=C(C=C)C=C1 QEDJMOONZLUIMC-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- IGZBSJAMZHNHKE-UHFFFAOYSA-N 2-[[4-[bis[4-(oxiran-2-ylmethoxy)phenyl]methyl]phenoxy]methyl]oxirane Chemical compound C1OC1COC(C=C1)=CC=C1C(C=1C=CC(OCC2OC2)=CC=1)C(C=C1)=CC=C1OCC1CO1 IGZBSJAMZHNHKE-UHFFFAOYSA-N 0.000 description 1
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- BNCADMBVWNPPIZ-UHFFFAOYSA-N 2-n,2-n,4-n,4-n,6-n,6-n-hexakis(methoxymethyl)-1,3,5-triazine-2,4,6-triamine Chemical compound COCN(COC)C1=NC(N(COC)COC)=NC(N(COC)COC)=N1 BNCADMBVWNPPIZ-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 description 1
- KZTCAXCBXSIQSS-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-4-n-phenylbenzene-1,4-diamine Chemical compound C=1C=C(N)C=CC=1N(C(C)CC(C)C)C1=CC=CC=C1 KZTCAXCBXSIQSS-UHFFFAOYSA-N 0.000 description 1
- LCFVJGUPQDGYKZ-UHFFFAOYSA-N Bisphenol A diglycidyl ether Chemical compound C=1C=C(OCC2OC2)C=CC=1C(C)(C)C(C=C1)=CC=C1OCC1CO1 LCFVJGUPQDGYKZ-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 229920000532 Poly[(o-cresyl glycidyl ether)-co-formaldehyde] Polymers 0.000 description 1
- 229920000537 Poly[(phenyl glycidyl ether)-co-formaldehyde] Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- WITDFSFZHZYQHB-UHFFFAOYSA-N dibenzylcarbamothioylsulfanyl n,n-dibenzylcarbamodithioate Chemical compound C=1C=CC=CC=1CN(CC=1C=CC=CC=1)C(=S)SSC(=S)N(CC=1C=CC=CC=1)CC1=CC=CC=C1 WITDFSFZHZYQHB-UHFFFAOYSA-N 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- VILGDADBAQFRJE-UHFFFAOYSA-N n,n-bis(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SN(SC=3SC4=CC=CC=C4N=3)C(C)(C)C)=NC2=C1 VILGDADBAQFRJE-UHFFFAOYSA-N 0.000 description 1
- CMAUJSNXENPPOF-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-cyclohexylcyclohexanamine Chemical compound C1CCCCC1N(C1CCCCC1)SC1=NC2=CC=CC=C2S1 CMAUJSNXENPPOF-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003141 primary amines Chemical group 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000012936 vulcanization activator Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
- AUMBZPPBWALQRO-UHFFFAOYSA-L zinc;n,n-dibenzylcarbamodithioate Chemical compound [Zn+2].C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1.C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1 AUMBZPPBWALQRO-UHFFFAOYSA-L 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/019—Specific properties of additives the composition being defined by the absence of a certain additive
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Abstract
The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system and comprising an epoxy resin and a hardener having high retardation.
Description
Technical Field
The present invention relates to a rubber composition intended in particular for the manufacture of tyres or semi-finished products for tyres. Another subject of the invention is a finished rubber product or semi-finished rubber product comprising a rubber composition according to the invention, and a pneumatic or non-pneumatic tire comprising at least one composition according to the invention.
Background
It is known to use rubber compositions exhibiting high stiffness during small strains of the pneumatic tire in certain parts of the pneumatic tire, as shown in application WO 02/10269. Resistance to small strains is one of the properties that a pneumatic tire must possess in order to respond to the stresses to which it is subjected.
Such reinforcement may be obtained by increasing the content of reinforcing filler or by incorporating certain reinforcing resins in the constituent rubber compositions of the pneumatic tire portions.
The reinforcing resins commonly used to increase the stiffness of the composition are reinforcing resins based on methylene acceptor/donor systems. The terms "methylene acceptor" and "methylene donor" are well known to the person skilled in the art and are widely used to denote compounds capable of reacting together to produce, by condensation, a three-dimensional reinforcing resin which, on the one hand, overlaps and interpenetrates the reinforcing filler/elastomer network and, on the other hand, overlaps and interpenetrates the elastomer/sulfur network (if the crosslinking agent is sulfur). Typically, the methylene acceptor is a phenolic resin. Novolac resins have been described in rubber compositions intended in particular for pneumatic tires or treads for various applications such as grip or reinforcement: for example, reference is made to patent EP 0 649 446.
The above methylene acceptors are combined with a hardener capable of crosslinking or hardening them, which is also commonly referred to as a "methylene donor". Crosslinking of the resin is then achieved during curing of the rubber matrix by formation of methylene bridges between the carbon and methylene donors located ortho and para to the phenolic core of the resin, thereby creating a three-dimensional resin network. The methylene donors commonly used are hexamethylenetetramine (abbreviated to HMT) or hexamethoxymethylmelamine (abbreviated to HMMM or H3M) or hexaethoxymethylmelamine.
However, the combination of phenolic resin (methylene acceptor) with HMT or H3M (methylene donor) can generate formaldehyde during crosslinking of the rubber composition. In fact, due to the potential environmental impact of these compounds, it is desirable in the long term to reduce or even eliminate formaldehyde from rubber compositions.
To this end, alternative compositions to the conventional compositions comprising a formaldehyde/phenol resin pair (methylene acceptor) and HMT or H3M hardener (methylene donor) have been developed. For example, application WO 2011/045342 describes compositions comprising pairs of epoxy resins and an amine-containing hardener. In addition to the advantage of not generating formaldehyde, these compositions also exhibit greater stiffness after crosslinking than conventional compositions, while maintaining acceptable rolling resistance. Application WO 2018/002538 describes a composition comprising an epoxy resin and an amine-containing hardener comprising at least two primary amine functions located on at least one six-membered aromatic ring, which composition is intended to improve the compromise between processability (in particular scorch time) and stiffness compared to known compositions.
However, it remains desirable to be able to reduce the amount of additives, in particular the amount of hardeners, and to improve the processability of the raw rubber composition, while maintaining the reinforcing properties of the composition once crosslinked (or "cured") at all operating temperatures of the pneumatic tire.
Surprisingly, the applicant company has found during its research that the combination of an epoxy resin and a urea compound makes it possible to avoid the formation of formaldehyde while maintaining the reinforcing properties at different working temperatures of the pneumatic tire, while improving the processability of the raw composition.
Disclosure of Invention
The present invention relates to at least one of the following embodiments:
1. rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system, from 1 to 30 parts by weight per hundred parts by weight of elastomer (phr) of an epoxy resin and of a composition of the general formula (R) 1 R 2 )N-CO-N(R 3 R 4 ) The urea compound of (1), wherein R 1 、R 2 、R 3 And R 4 Each independently selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 5 to 24 carbon atoms, an aryl group having 6 to 30 carbon atoms and a group having 7 to 25Aralkyl radical of carbon atom, R 2 And R 3 The radicals being able to form together a ring, R 1 、R 2 、R 3 And R 4 Each of which is optionally interrupted and/or substituted by one or more heteroatoms.
2. The rubber composition of the previous embodiment, wherein the urea compound is a mono-urea, and wherein R 1 、R 2 、R 3 And R 4 Each group is independently selected from a hydrogen atom and a hydrocarbon compound.
3. The rubber composition of any of the preceding embodiments, wherein R 1 And R 3 Each group is a hydrogen atom.
4. The rubber composition of any of the preceding embodiments, wherein at least one R 2 Or R 4 The group is an aryl group having 6 to 8 carbon atoms, preferably a phenyl group.
5. The rubber composition of any of embodiments 1-3, wherein the urea compound does not comprise an aromatic core.
6. The rubber composition of any of the preceding embodiments, wherein R 1 To R 4 The groups do not together form a ring.
7. The rubber composition of embodiment 1, wherein R 1 、R 2 、R 3 And R 4 Each group is a hydrogen atom.
8. The rubber composition according to embodiment 1, wherein the urea compound is selected from the compounds urea, N ' -dimethyl urea, ethylene urea, N-phenyl urea, 1, 3-diphenyl urea, preferably from the compounds urea, N ' -dimethyl urea, N-phenyl urea, 1, 3-diphenyl urea, very preferably from the compounds urea and N, N ' -dimethyl urea.
9. The rubber composition according to any of the preceding embodiments, wherein the urea compound is present in a range of 1phr to 15phr, preferably 0.5phr to 10phr, preferably 0.5phr to 8phr and preferably 0.5phr to 5 phr.
10. The rubber composition according to any of the preceding embodiments, wherein the diene elastomer is selected from the group consisting of polybutadiene, natural rubber, synthetic polyisoprene, butadiene copolymers, isoprene copolymers and mixtures of these elastomers, preferably isoprene elastomer.
11. The rubber composition of any of the preceding embodiments, wherein the epoxy resin is selected from the group consisting of aromatic epoxy resins, cycloaliphatic epoxy resins, and aliphatic epoxy resins.
12. The rubber composition of any of the preceding embodiments, wherein the epoxy resin content is between 10phr and 25phr, preferably between 10phr and 20 phr.
13. The rubber composition according to any of the preceding embodiments, comprising no nitrile compound or less than 10phr, preferably less than 5phr and preferably less than 2phr of nitrile compound.
14. The rubber composition of any of the preceding embodiments, wherein the reinforcing filler is present in an amount ranging from 20phr to 200phr, preferably from 30phr to 150 phr.
15. A rubber finished product or rubber semi-finished product comprising the rubber composition according to any of the preceding embodiments.
16. A pneumatic tire or a non-pneumatic tire comprising the rubber composition according to any one of embodiments 1 to 14.
17. The tire of the previous embodiment, comprising an inner layer comprising the rubber composition of any of embodiments 1-14.
Definition of
Within the meaning of the present invention, the expression "parts by weight per hundred parts by weight of elastomer" (or phr) is understood to mean parts by weight per hundred parts by weight of elastomer or rubber.
Herein, all percentages (%) shown are weight percentages (%), unless otherwise indicated.
Furthermore, any interval of values denoted by the expression "between a and b" denotes a range of values extending from more than a to less than b (i.e. not including the limits a and b), whereas any interval of values denoted by the expression "from a to b" means a range of values extending from a up to b (i.e. including the strict limits a and b).
The expression "composition based on" is understood to mean that the composition comprises a mixture and/or an in situ reaction product of the various components used, some of these components being able (and/or intended) to react with one another at least partially during the various preparation stages of the composition; thus, the composition may be in a fully or partially crosslinked state or in an uncrosslinked state.
When referring to a "primary" compound, within the meaning of the present invention, it is understood to mean that, among the same type of compounds of the composition, the compound is primary, i.e. the compound which is the greatest by weight among the compounds of the same type. Thus, for example, the predominant elastomer is the elastomer that makes up the maximum weight relative to the total weight of elastomers in the composition. In the same manner, the "predominant" filler is the filler that makes up the greatest weight of the fillers in the composition. For example, in a system comprising only one elastomer, which is predominant within the meaning of the present invention, in a system comprising two elastomers, the predominant elastomer represents more than half the weight of the elastomer. In contrast, a "minor" compound is a compound that does not account for the maximum weight part of the same type of compound. Preferably, the term "predominantly" is understood to mean that the compound is present at more than 50%, preferably more than 60%, 70%, 80%, 90%, more preferably the "predominantly" compound makes up 100%.
The carbon-containing compounds mentioned in the description may be compounds of fossil origin or bio-based compounds. In the case of bio-based compounds, they may be partially or completely derived from biomass or obtained by renewable starting materials derived from biomass. In particular, it relates to polymers, plasticizers, fillers, and the like.
Diene elastomer
The composition according to the invention comprises at least one diene elastomer. Thus, the composition may comprise only one diene elastomer, or a mixture of diene elastomers.
"diene" elastomer (or rubber without distinction), whether natural or synthetic, should be understood in a known manner to mean an elastomer consisting at least in part (i.e. a homopolymer or a copolymer) of diene monomer units (monomers bearing two conjugated or non-conjugated carbon-carbon double bonds).
These diene elastomers can be divided into two categories: "substantially unsaturated" or "substantially saturated". The term "essentially unsaturated" is generally understood to mean a diene elastomer resulting at least in part from conjugated diene monomers and having a content of units of diene origin (conjugated dienes) which is greater than 15% (mol%); thus diene elastomers such as butyl rubbers or EPDM type copolymers of dienes and of alpha-olefins do not fall within the preceding definition, but can be described in particular as "essentially saturated" diene elastomers (low or very low content of units of diene origin, always less than 15%). The diene elastomer comprised in the composition according to the invention is preferably substantially unsaturated.
Diene elastomers which can be used in the compositions according to the invention are understood in particular to mean:
(a) Any homopolymer of a conjugated or non-conjugated diene monomer having from 4 to 18 carbon atoms;
(b) Any copolymer of a conjugated or non-conjugated diene having from 4 to 18 carbon atoms with at least one other monomer.
The other monomer may be ethylene, an olefin, or a conjugated or non-conjugated diene.
Suitable as conjugated dienes are conjugated dienes having from 4 to 12 carbon atoms, in particular 1, 3-dienes, such as in particular 1, 3-butadiene and isoprene.
Suitable as olefins are vinylaromatic compounds having from 8 to 20 carbon atoms and aliphatic alpha-monoolefins having from 3 to 12 carbon atoms.
Suitable as vinylaromatic compounds are, for example, styrene, o-methylstyrene, m-methylstyrene or p-methylstyrene, "vinyltoluene" commercial mixtures or p- (tert-butyl) styrene.
Suitable aliphatic alpha-monoolefins are in particular acyclic aliphatic alpha-monoolefins having from 3 to 18 carbon atoms.
Preferably, the diene elastomer is chosen from polybutadienes (BR), natural Rubber (NR), synthetic polyisoprenes (IR), butadiene copolymers, isoprene copolymers and mixtures of these elastomers. The butadiene copolymer is chosen in particular from butadiene/styrene copolymers (SBR).
Preferably, the diene elastomer is an isoprene elastomer.
The term "isoprene elastomer" is understood in a known manner to mean an isoprene homopolymer or copolymer, in other words a diene elastomer selected from Natural Rubber (NR), synthetic polyisoprenes (IR), various isoprene copolymers and mixtures of these elastomers. Among the isoprene copolymers, mention will in particular be made of isobutylene/isoprene (butyl rubber-IIR), isoprene/Styrene (SIR), isoprene/Butadiene (BIR) or isoprene/butadiene/Styrene (SBIR) copolymers. The isoprene elastomer is preferably selected from the group consisting of natural rubber, synthetic cis-1, 4-polyisoprene and mixtures thereof; among these synthetic polyisoprenes, it is preferred to use polyisoprenes having a cis-1, 4-linkage content (mol%) of greater than 90%, more preferably still greater than 98%. Preferably and according to any arrangement of this document, the diene elastomer is natural rubber.
Preferably, the content of diene elastomer, preferably isoprene elastomer, preferably natural rubber, is between 50phr and 100phr, more preferably between 60phr and 100phr, in a more preferred manner between 70phr and 100phr, still more preferably between 80phr and 100phr and in a very preferred manner between 90phr and 100phr. In particular, the content of diene elastomer, preferably isoprene elastomer (more preferably natural rubber), is very preferably 100phr.
The rubber composition according to the invention may also comprise minor amounts of any type of synthetic elastomer other than diene elastomers, even polymers other than elastomers, for example thermoplastic polymers, whether the rubber composition comprises only one diene elastomer or a mixture of a plurality of diene elastomers. Preferably, the rubber composition according to the invention does not comprise a synthetic elastomer other than a diene elastomer or a polymer other than an elastomer, or comprises less than 10phr, preferably less than 5phr, of a synthetic elastomer other than a diene elastomer or a polymer other than an elastomer.
Epoxy resin
The epoxy resin that can be used in the present invention includes all polyepoxide compounds. It may relate to, for example, aromatic epoxy resins, cycloaliphatic epoxy resins and aliphatic epoxy resins. For example, the aromatic epoxy resin may be an amine-aromatic epoxy resin. The epoxy resin is preferably an epoxy novolac resin, i.e. an epoxy resin obtained by acidic catalysis compared to a resole resin obtained by alkaline catalysis.
Among the aromatic epoxy resins in particular, preferred epoxy resins are selected from the group consisting of 2, 2-bis [4- (glycidyloxy) phenyl ] propane, poly [ (o-tolylglycidyl ether) -co-formaldehyde ], poly [ (phenylglycidyl ether) -co- (hydroxybenzaldehyde glycidyl ether) ], aromatic amine epoxy resins and mixtures of these compounds, preferably the epoxy resin is selected from the group consisting of poly [ (o-tolylglycidyl ether) -co-formaldehyde ] and poly [ (phenylglycidyl ether) -co- (hydroxybenzaldehyde glycidyl ether) ].
Also preferably, the epoxy resin is selected from the group consisting of poly [ (o-cresyl glycidyl ether) -co-formaldehyde ], poly [ (phenyl glycidyl ether) -co-formaldehyde ], aromatic amine epoxy resins and mixtures of these compounds.
As examples of commercially available epoxy resins that may be used in the context of the present invention, mention may be made of, for example, epoxy resin DEN 439 from Uniqema, epoxy resin tris (4-hydroxyphenyl) methane triglycidyl ether from Sigma-Aldrich, epoxy cresol novolac resin Araldite ECN 1299 from Huntsman or epoxy phenol novolac resin Araldite EPN1138 from Huntsman.
The composition according to the invention comprises between 1phr and 30phr of epoxy resin. Considering the amine-containing hardeners used in the context of the present invention, below the minimum content of the resins shown, the targeted technical effect is insufficient, while above the maximum values shown, there is a risk of excessively increasing the stiffness and excessively impairing the hysteresis and extensibility of the material. For all these reasons, the content of epoxy resin is preferably between 10phr and 25 phr. More preferably, the content of epoxy resin in the composition according to the invention is between 10phr and 20 phr.
High-retardation curing agent
The epoxy resin of the composition of the invention is combined with a specific hardener, in this case a urea compound, capable of crosslinking the resin.
According to the invention, the hardener is of the formula (R) 1 R 2 )N-CO-N(R 3 R 4 ) Wherein R is 1 、R 2 、R 3 And R 4 Each independently selected from:
a hydrogen atom(s) in the presence of a hydrogen atom,
an alkyl group having 1 to 20 carbon atoms,
cycloalkyl radicals having 5 to 24 carbon atoms,
an aryl radical having from 6 to 30 carbon atoms and
an aralkyl radical having from 7 to 25 carbon atoms,
R 2 and R 3 The radicals being able to form together a ring, R 1 、R 2 、R 3 And R 4 Each of which is optionally interrupted and/or substituted by one or more heteroatoms.
In the general formula (R) 1 R 2 )N-CO-N(R 3 R 4 ) In (A), (B), (C) and (C), (C) are understood to mean that the carbon atom is bonded to the oxygen atom via a double bond, (R) 1 R 2 ) N (accordingly N (R) 3 R 4 ) Group) denotes a nitrogen atom covalently bonded to R 1 Group and R 2 And bonding the groups.
Wherein R is 2 And R 3 Examples of urea compounds in which the groups together form a ring are 2-imidazolidinone or ethylene urea.
Preferably, these groups do not together form a ring.
Preferably, the urea compound is a monourea, and R 1 、R 2 、R 3 And R 4 Each group is independently selected from a hydrogen atom and a hydrocarbon compound.
Preferably, R 1 And R 3 Each group is a hydrogen atom. Thus, urea is of the formula R 2 -HN-CO-NH-R 4 The compound of (1).
In a preferred arrangement, at least one R 2 Or R 4 The group is an aryl group having 6 to 8 carbon atoms, preferably a phenyl group. Preferably, in this preferred arrangement, the urea compound may be N-phenyl urea or 1, 3-diphenyl urea.
Preferably, the urea compound does not comprise an aromatic nucleus.
Preferably, R 1 、R 2 、R 3 And R 4 Each group is a hydrogen atom. Then the urea compound is of the formula H 2 N-CO-NH 2 The compound of (a), is generally denoted by the term "urea" or "urea".
Thus, very preferably, the urea compound is selected from the compounds urea, N ' -dimethylurea, ethylene urea, N-phenyl urea, 1, 3-diphenylurea, preferably from the compounds urea, N ' -dimethylurea, N-phenyl urea, 1, 3-diphenylurea, very preferably from the compounds urea and N, N ' -dimethylurea. Very preferably, the urea compound is of formula H 2 N-CO-NH 2 The urea of (1).
The amount of urea compound in the rubber composition is in the range of 1phr to 15 phr. Below the minimum values indicated, the technical effect aimed at has proved to be insufficient, while above the maximum values indicated, there is a risk of unfavourable processing of the composition in the raw state. Preferably, the urea content is in the range of 0.5ph to 10phr, preferably 0.5phr to 8phr and preferably 0.5phr to 5 phr.
Reinforcing filler
The composition according to the invention preferably comprises a reinforcing filler.
The reinforcing filler may comprise any type of reinforcing filler known to be capable of reinforcing rubber compositions used for the manufacture of pneumatic tires, such as organic fillers (for example carbon black), reinforcing inorganic fillers (for example silica) or mixtures of carbon black and reinforcing inorganic fillers. More preferably, the reinforcing filler comprises mainly (even exclusively) carbon black, in particular in the case of compositions for the inner layer. The reinforcing filler may also comprise mainly a reinforcing inorganic filler, in particular in the case of compositions for treads.
Such reinforcing fillers generally consist of particles having a (weight) average size of less than one micron, generally less than 500nm, most generally between 20nm and 200nm, particularly and more preferably between 20nm and 150 nm.
All carbon blacks, in particular blacks of the type HAF, ISAF or SAF ("tire-grade" blacks), which are generally used in pneumatic tires, are suitable as carbon blacks. Among the "tire grade" blacks, mention will be made more particularly of the 100, 200 or 300 series (ASTM grade) of reinforcing blacks (for example N115, N134, N234, N326, N330, N339, N347 or N375 blacks), or of the higher series depending on the targeted application (for example N660, N683 or N772). The carbon black may, for example, have been incorporated into an isoprene elastomer in the form of a masterbatch (see, for example, applications WO 97/36724 or WO 99/16600). The BET specific surface area of the carbon black [ multipoint (at least 5 points) method-gas: nitrogen-relative pressure p/p 0 The range is as follows: 0.1 to 0.3]。
In the present patent application, by definition, "reinforcing inorganic filler" is understood to mean any inorganic or mineral filler (whatever its colour and its origin, natural or synthetic), also known as "white filler", "clear filler" or even "non-black filler" with respect to carbon black, capable of reinforcing alone, without methods other than an intermediate coupling agent, a rubber composition intended for the manufacture of pneumatic tires, in other words capable of replacing, in its reinforcing role, a conventional tire-grade carbon black; it is known that such fillers are generally characterized by the presence of hydroxyl (-OH) groups on their surface.
Mineral fillers of siliceous type (in particular Silica (SiO) 2 ) Mineral fillers (in particular alumina (Al)) or of the aluminous type 2 O 3 ) Are particularly suitable as reinforcing inorganic fillers. The silica used may be any reinforcing silica known to the person skilled in the art, in particular having a BET surface area and a CTAB specific surface area both of which are less than 450m 2 A/g, preferably of 30m 2 G to 400m 2 Precipitated silica or fumed silica in g. As a highly dispersible precipitated silica ("HDS"), willMention may be made, for example, of the silicas Ultrasil 7000 and 7005 from Degussa, of the silicas Zeosil 1165MP, 1135MP and 1115MP from Rhodia, of the silica Hi-Sil EZ150G from PPG, of the silicas Zeopol 8715, 8745 and 8755 from Huber or of the silicas with a high specific surface area as described in application WO 03/16837.
The BET specific surface area of The silica is determined in a known manner by gas adsorption using The Brunauer-Emmett-Teller method described in "The Journal of The American Chemical Society" (Vol.60, p.309, 2.1938), more particularly according to French Standard NF ISO 9277 (multipoint (5 points) volumetric method-gas: nitrogen-exhaust gas: 1 hour at 160 ℃ relative pressure p/p 0 The range is as follows: 0.05 to 0.17). The CTAB specific surface area of the silica was determined according to French standard NF T45-007 (method B) at 11 months 1987.
Mineral fillers of the aluminium type (in particular alumina (Al) 2 O 3 ) Or aluminium hydroxide (oxide)) or reinforcing titanium oxide (as described, for example, in US 6610261 and US 6747087) are also suitable as reinforcing inorganic fillers.
It is not important in what physical state the reinforcing inorganic filler is provided, whether it be in the form of a powder, microbeads, granules, beads or any other suitable dense form. Of course, the term "reinforcing inorganic filler" is also understood to mean mixtures of different reinforcing inorganic fillers, in particular mixtures of highly dispersible siliceous fillers and/or aluminous fillers.
It will be understood by those skilled in the art that reinforcing fillers of another nature, in particular organic, can be used as fillers equivalent to the reinforcing inorganic fillers described in this section, provided that the reinforcing filler is covered with an inorganic layer (for example silica), or comprises, on its surface, functional sites (in particular hydroxyl sites) capable of establishing a bond between the filler and the elastomer, in the presence or absence of covering or coupling agents.
For coupling the reinforcing inorganic filler to the diene elastomer, an at least bifunctional coupling agent (or bonding agent) aimed at providing a satisfactory combination of chemical and/or physical properties between the inorganic filler (its particle surface) and the diene elastomer may be used in a known manner. In particular, at least bifunctional organosilanes or polyorganosiloxanes are used. "bifunctional" is understood to mean that the compound has a first functional group capable of interacting with the inorganic filler and a second functional group capable of interacting with the diene elastomer. For example, such a bifunctional compound may comprise a first functional group containing a silicon atom, capable of interacting with the hydroxyl groups of the inorganic filler, and a second functional group containing a sulfur atom, capable of interacting with the diene elastomer.
Preferably, the organosilane is chosen from organosilane polysulfides (symmetrical or asymmetrical) (for example bis (3-triethoxysilylpropyl) tetrasulfide abbreviated to TESPT sold under the name Si69 by Evonik, or bis (3-triethoxysilylpropyl) disulfide abbreviated to TESPD sold under the name Si75 by Evonik), polyorganosiloxanes, mercaptosilanes, blocked mercaptosilanes (for example S- (3- (triethoxysilyl) propyl) octane thioesters sold under the name NXT Silane by Momentive). More preferably, the organosilane is an organosilane polysulfide.
The amount of coupling agent is preferably less than 12phr, it being understood that it is generally desirable to use as little coupling agent as possible. Generally, when a reinforcing inorganic filler is present, the coupling agent is present in an amount of 0.5 to 15% by weight relative to the amount of inorganic filler. The content of coupling agent is preferably in the range of 0.5phr to 15 phr. The content can be easily adjusted by those skilled in the art according to the content of the inorganic filler used in the composition.
According to the invention, when reinforcing fillers are present, the content of reinforcing fillers (which preferably mainly comprise (even only) carbon black) may range from 20phr to 200phr, preferably from 30phr to 150phr, preferably from 40phr to 100phr, preferably from 50phr to 80 phr.
Cross-linking system
The crosslinking system may be any type of system known to those skilled in the art of pneumatic tire rubber compositions. The crosslinking system may be based in particular on sulfur and/or peroxide and/or bismaleimide.
Preferably, the crosslinking system is based on sulfur; the crosslinked system is referred to as a cure system. The sulphur may be provided in any form, in particular as molecular sulphur or as a sulphur-donating agent. It is also preferred that at least one vulcanization accelerator is present, and optionally, it is also preferred to use various known vulcanization activators such as zinc oxide, stearic acid or equivalent compounds (e.g., stearates and transition metal salts), guanidine derivatives (especially diphenylguanidine), or known vulcanization retarders.
Sulfur is used in a preferred amount of between 0.5phr and 12phr, in particular between 1phr and 10 phr. The vulcanization accelerator is used in a preferred amount of between 0.5phr and 10phr, more preferably between 0.5phr and 8.0 phr.
As accelerators, any compound capable of acting as vulcanization accelerator for diene elastomers in the presence of sulfur can be used, in particular accelerators of the thiazole type and their derivatives, or of the sulfenamide, thiuram, dithiocarbamate, dithiophosphate, thiourea and xanthate type. As examples of such accelerators, the following compounds may be mentioned in particular: 2-mercaptobenzothiazole disulfide (abbreviated as "MBTS"), N-cyclohexyl-2-benzothiazolesulfenamide ("CBS"), N-dicyclohexyl-2-benzothiazolesulfenamide ("DCBS"), N- (tert-butyl) -2-benzothiazolesulfenamide ("TBBS"), N- (tert-butyl) -2-benzothiazolesulfenimide ("TBSI"), tetrabenzylthiuram disulfide ("TBZTD"), zinc dibenzyldithiocarbamate ("ZBEC"), and mixtures of these compounds.
Various additives
The rubber compositions according to the invention may also comprise all or part of the usual additives and processing aids known to the person skilled in the art and commonly used in rubber compositions for pneumatic tires, such as, for example, plasticizers (for example plasticizing oils and/or plasticizing resins), pigments, protective agents (for example antiozone waxes, chemical antiozonants or antioxidants) or antifatigue agents.
Preferably, the composition according to the invention comprises no nitrile compound or less than 10phr, preferably less than 5phr, in a preferred manner less than 2phr, very preferably less than 1phr, still more preferably less than 0.5phr of nitrile compound.
The composition may be in the green state (before crosslinking or vulcanization) or in the cured state (after crosslinking or vulcanization).
Rubber finished product or rubber semi-finished product and pneumatic tire
Another subject of the invention is a finished rubber product or a semi-finished rubber product comprising a composition according to the invention.
Another subject of the invention is a pneumatic tire comprising a composition according to the invention.
Three regions may be defined within a pneumatic tire:
the radially outer region in contact with the ambient air, which comprises layers called "outer layers", which substantially comprise the tread and the casing sides of the pneumatic tire. The outer sidewalls are elastomeric layers located outside the carcass reinforcement with respect to the inner cavity of the pneumatic tire and between the crown and the beads, covering completely or partially the area of the carcass reinforcement extending from the crown to the beads.
The radially inner region in contact with the inflation gas, which region usually consists of a layer that is gas-tight to the inflation gas (sometimes referred to as an inner gas-tight layer or liner).
The inner region of the pneumatic tire, i.e. the region between the outer region and the inner region. This region includes what is referred to herein as a layer or ply of the inner layer of the pneumatic tire. Such as a carcass ply, an undertread, a pneumatic tire belt ply, or any other layer not in contact with ambient air or the inflation gas of a pneumatic tire.
The compositions defined in this specification are particularly suitable for the inner and outer layers of pneumatic tires, and for the outer layer, for tread compositions.
According to the invention, the inner layer may be selected from the group consisting of carcass plies, crown plies, bead wire fillers, crown bases, decoupling layers, edge rubbers, filling rubbers, tread underlayers, and combinations of these inner layers. Preferably, the inner layer is selected from the group consisting of a carcass ply, a crown ply, a bead wire filler, a crown base, a decoupling layer, and combinations of these inner layers.
The composition according to the invention is also suitable for the inner and outer layers of non-pneumatic tires, in particular for the treads of non-pneumatic tires. It should be borne in mind that a non-pneumatic tire is one that supports the load of the vehicle by means other than pressurized inflation gas.
The invention relates in particular to a pneumatic tyre intended to equip a motor vehicle of the passenger vehicle, SUV (sport utility vehicle) or two-wheeled vehicle (in particular motorcycle) type, or an aircraft, or an industrial vehicle chosen from a lorry, a heavy vehicle, i.e. a subway, a bus, a heavy road transport vehicle (truck, tractor, trailer) or an off-road vehicle (for example a heavy agricultural or construction vehicle), or the like.
The present invention relates to articles comprising a rubber composition according to the invention in the raw state (i.e. before curing) and in the cured state (i.e. after crosslinking or vulcanization).
Preparation of rubber composition
The rubber compositions according to the invention can be manufactured in a suitable mixer using two successive preparation stages known to those skilled in the art:
a first stage of thermomechanical working or kneading ("non-productive" stage), which can be carried out in a single thermomechanical step, during which all the necessary components, in particular the elastomeric matrix, the fillers and optionally other various additives, in addition to the crosslinking system, are introduced into a suitable mixer, for example a standard internal mixer (for example of the "banbury" type). The filler can be incorporated into the elastomer by thermomechanical kneading in one portion or in batches. In the case where the filler has been incorporated, in whole or in part, into the elastomer in masterbatch form (as described, for example, in applications WO 97/36724 and WO 99/16600), the masterbatch is also incorporated, directly kneaded, the other elastomer or filler (if present) not present in the composition in masterbatch form, and optionally various other additives besides the crosslinking system.
The non-productive phase is carried out at elevated temperature, with a maximum temperature of between 110 ℃ and 190 ℃, preferably between 130 ℃ and 180 ℃, for a duration generally between 2 minutes and 10 minutes.
A second stage of mechanical processing in an open mixer (e.g. open mill) (the "production" stage) after cooling the mixture obtained during the first non-production stage to a lower temperature (typically less than 110 ℃, for example between 40 ℃ and 100 ℃). The crosslinking system is then incorporated and all the substances are mixed for several minutes, for example between 2 and 15 minutes.
The process for preparing such a composition comprises, for example, the following steps:
a) Incorporating the reinforcing filler into the diene elastomer during a first phase (the "non-productive" phase), thermomechanically kneading (for example, once or batchwise) all the mass until a maximum temperature between 110 ℃ and 190 ℃ is reached;
b) Cooling the combined mixture to a temperature of less than 100 ℃;
c) The cross-linking system is then incorporated during the second stage (the "production" stage);
d) Kneading all materials until a maximum temperature of less than 110 ℃.
Between 1phr and 30phr of epoxy resin and between 1phr and 15phr of urea compound may be introduced independently of each other during the non-productive phase (a) or productive phase (c). Preferably, the epoxy resin is introduced during the non-production stage (a) and the high-delayed hardener is introduced during the production stage (c).
The final composition thus obtained can then be calendered, for example in the form of a sheet or plate (in particular for laboratory characterization), or else extruded in the form of a semifinished rubber product (or profiled element) for the manufacture of pneumatic tires.
The crosslinking of the composition may be carried out in a manner known to the skilled person, for example at temperatures and pressures between 130 ℃ and 200 ℃.
Detailed Description
Examples
Measurement and testing used
Scorch time
The measurement was carried out at 130 ℃ according to French standard NF T43-005. The variation of the consistency index over time makes it possible to determine the scorching time (evaluated according to the above criteria) of the rubber composition by means of a parameter T5 expressed in minutes (in the case of a large rotor), said parameter T5 being defined as the time required to obtain an increase in the consistency index (expressed in MU) which is 5 units above the lowest measurement of this index.
It should be borne in mind that, in a manner well known to those skilled in the art, the greater the time-varying consistency index, the more the cross-linking of the material will be delayed before curing.
Mooney plasticity
An oscillating consistometer as described in French Standard NF T43-005 (1991) was used. Mooney plasticity measurement was performed according to the following principle: the composition in the raw state (i.e. before curing) was moulded in a cylindrical chamber heated to 100 ℃. After one minute of preheating, the rotor was rotated at 2 revolutions per minute within the sample and the operating torque to maintain this movement was measured after 4 minutes of rotation. Mooney plasticity (ML 1+ 4) is expressed in "Mooney units" (MU, 1MU =0.83 Newton. M).
It should be borne in mind that the lower the Mooney plasticity, the easier the material is to process, in a manner well known to those skilled in the art. Of course, beyond a certain value (e.g., 20 MU), the material becomes too liquid to be used, particularly for making the inner layer.
Tensile test
The test was carried out according to French Standard NF T46-002, 9 months 1988. All tensile measurements were carried out according to French Standard NF T40-101 (12 months 1979) at a temperature (100. + -. 2 ℃) representative of the working temperature of the composition in the tyre and under standard hygrometric conditions (50. + -. 5% relative humidity).
In the second elongation (i.e. after conditioning), the nominal secant modulus (or apparent stress in MPa) was measured in samples cured at 150 ℃ for 60 minutes at 100% elongation (denoted MA 100) and at 300% elongation (denoted MA 300), which was calculated by reducing to the initial cross section of the specimen.
Representative enhanced MA300/MA100 ratios are given in the table.
Preparation of the composition
The following tests were performed in the following manner: the diene elastomer, the reinforcing filler, between 1phr and 30phr of the epoxy resin and the various other ingredients, except for the crosslinking system, are introduced continuously into an internal mixer (final filling: about 70% by volume) with an initial vessel temperature of about 60 ℃. Thermomechanical working (non-productive phase) is then carried out in one step, for a total of about 3 to 4 minutes, until a maximum "tapping" temperature of 165 ℃ is reached.
The mixture thus obtained is recovered and cooled, then the sulphur, the sulfenamide-type accelerator, the high-retarding hardener are incorporated into a mixer (homogeneous finisher) at 30 ℃ and all the substances are mixed (production stage) for a suitable time (for example between 5 and 12 minutes).
The composition thus obtained is subsequently calendered (for measuring its physical or mechanical properties) in the form of a rubber sheet (thickness from 2mm to 3 mm) or a rubber sheet, or extruded in the form of a profiled element.
The crosslinking of the composition is carried out at a temperature of 150 ℃ under pressure for 60 minutes.
Testing of rubber compositions
Five rubber compositions were prepared as described above, four rubber compositions (hereinafter referred to as C-2 to C-5) according to the present invention, and one rubber composition (control composition, hereinafter referred to as C-1) not according to the present invention. Their formulations (in phr) and their properties are summarized in table 1 below.
The compositions shown in Table 1, except for comparative composition C-1, did not result in the formation of formaldehyde during the curing process.
Compositions C-2 to C-5 contained epoxy resin and urea compound as a replacement for the phenol/formaldehyde resin-HMT hardener pair present in the conventional control composition C-1.
All results are expressed on a base 100 using the control composition C-1 as reference. A value less than 100 means a value lower than that of the control composition, and a value greater than 100 means a value greater than that of the control composition.
[ Table 1]
(1) Natural rubber
(2) Carbon black N326 (named according to standard ASTM D-1765)
(3) Zinc oxide (Industrial grade-Umicore)
(4) N- (1, 3-dimethylbutyl) -N-phenyl-p-phenylenediamine (Santoflex 6-PPD from Flexsys)
(5) Stearin (Pristerene 4931 from Uniqema)
(6) N-Cyclohexylbenzothiazolesulfenamide (Santocure CBS from Flexsys)
(7) Phenol/formaldehyde novolac resin (Peracit 4536K from Perstorp)
(8) Hexamethylenetetramine (from Degussa)
(9) Epoxy phenol novolac resin (EPN 1138 from Huntsman)
(10) Urea from Sigma-Aldrich
(11) Compound N-phenylurea from Sigma-Aldrich
(12) Compound N, N' -dimethylurea from Sigma-Aldrich
(13) Compound 1, 3-diphenylurea from Sigma-Aldrich
It is noted that the composition according to the invention makes it possible to obtain a reinforcing effect similar to that of the control composition with a smaller amount of hardener, while exhibiting an extended scorch time and a lower Mooney viscosity, thus improving processability.
Claims (13)
1. Rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system based on sulphur, from 1 to 30 parts by weight per hundred parts by weight of elastomer phr of an epoxy resin and 1 R 2 )N-CO-N(R 3 R 4 ) The urea compound of (1), wherein R 1 、R 2 、R 3 And R 4 Each independently selected from the group consisting of a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 5 to 24 carbon atomsA radical, an aryl radical having from 6 to 30 carbon atoms and an aralkyl radical having from 7 to 25 carbon atoms, R 2 And R 3 The radicals being able to form together a ring, R 1 、R 2 、R 3 And R 4 Each of which is optionally interrupted and/or substituted by one or more heteroatoms.
2. Rubber composition according to the preceding claim, in which the urea compound is a monourea and in which R 1 、R 2 、R 3 And R 4 Each group is independently selected from a hydrogen atom and a hydrocarbon compound.
3. The rubber composition of any of the preceding claims, wherein R 1 And R 3 Each group is a hydrogen atom.
4. The rubber composition of any of the preceding claims, wherein at least one R 2 Or R 4 The group is an aryl group having 6 to 8 carbon atoms, preferably a phenyl group.
5. The rubber composition according to any one of claims 1 to 3, wherein the urea compound does not contain an aromatic core.
6. The rubber composition of any of the preceding claims, wherein R 1 To R 4 The groups do not together form a ring.
7. The rubber composition according to claim 1, wherein R 1 、R 2 、R 3 And R 4 Each group is a hydrogen atom.
8. The rubber composition according to claim 1, wherein the urea compound is selected from the compounds urea, N ' -dimethyl urea, ethylene urea, N-phenyl urea, 1, 3-diphenyl urea, preferably from the compounds urea, N ' -dimethyl urea, N-phenyl urea, 1, 3-diphenyl urea, very preferably from the compounds urea and N, N ' -dimethyl urea.
9. The rubber composition according to any one of the preceding claims, wherein the content of urea compound is in the range of 1 to 15phr, preferably 0.5 to 10phr, preferably 0.5 to 8phr and preferably 0.5 to 5 phr.
10. Rubber composition according to any one of the preceding claims, wherein the epoxy resin is selected from aromatic epoxy resins, cycloaliphatic epoxy resins and aliphatic epoxy resins.
11. The rubber composition according to any one of the preceding claims, comprising no nitrile compound or less than 10phr, preferably less than 5phr and preferably less than 2phr of nitrile compound.
12. A rubber finished product or rubber semi-finished product comprising the rubber composition according to any of the preceding claims.
13. A pneumatic tire or non-pneumatic tire comprising the rubber composition according to any one of claims 1 to 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2002369A FR3108118B1 (en) | 2020-03-10 | 2020-03-10 | RUBBER COMPOSITION BASED ON EPOXY RESIN AND A HIGH LATENCY HARDENER |
| FR2002369 | 2020-03-10 | ||
| PCT/FR2021/050370 WO2021181032A1 (en) | 2020-03-10 | 2021-03-04 | Rubber composition based on epoxy resin and a hardener having high latency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115243906A true CN115243906A (en) | 2022-10-25 |
Family
ID=71452394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180020014.8A Pending CN115243906A (en) | 2020-03-10 | 2021-03-04 | Rubber composition based on an epoxy resin and a hardener having high retardation |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4117937A1 (en) |
| JP (1) | JP2023517609A (en) |
| CN (1) | CN115243906A (en) |
| CA (1) | CA3168388A1 (en) |
| FR (1) | FR3108118B1 (en) |
| WO (1) | WO2021181032A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3140884A1 (en) | 2022-10-13 | 2024-04-19 | Compagnie Generale Des Etablissements Michelin | UREA MASTERBATCH FOR ADDITIVATION OF AN ELASTOMERIC COMPOSITION |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096978A (en) * | 1988-10-03 | 1992-03-17 | Monsanto Company | Vulicanizable synthetic rubber compositions cure-activated by substituted ureas |
| JP2000248117A (en) * | 1999-02-24 | 2000-09-12 | Goodyear Tire & Rubber Co:The | Silica-filled diene-based rubber containing tin organic acid salt compound |
| FR2854404A1 (en) * | 2003-04-29 | 2004-11-05 | Michelin Soc Tech | PROCESS FOR OBTAINING A GRAFT ELASTOMER WITH FUNCTIONAL GROUPS ALONG THE CHAIN AND RUBBER COMPOSITIONS |
| CN102575068A (en) * | 2009-10-14 | 2012-07-11 | 米其林技术公司 | Rubber composition including an epoxide resin |
| CN104487503A (en) * | 2012-07-25 | 2015-04-01 | 米其林集团总公司 | Rubber composition comprising an epoxy resin and a polyimine hardener |
| CN104884521A (en) * | 2012-12-17 | 2015-09-02 | 米其林企业总公司 | Tyre comprising a rubber composition comprising an epoxy resin and a polyacid |
| CN106687495A (en) * | 2014-09-19 | 2017-05-17 | 横滨橡胶株式会社 | Epoxy resin composition for fiber-reinforced composite material, method for producing epoxy resin composition for fiber-reinforced composite material, prepreg, and honeycomb panel |
| CN107250201A (en) * | 2015-03-09 | 2017-10-13 | 住友橡胶工业株式会社 | Tire |
| CN108136829A (en) * | 2015-10-09 | 2018-06-08 | 米其林集团总公司 | Tire with the composition comprising imidazolium compounds |
| CN108299897A (en) * | 2016-08-30 | 2018-07-20 | 上海涛瀚橡塑制品有限公司 | Utilize the preparation method of waste rubber grain in water-repellent paint made of waste rubber grain and its water-repellent paint |
| CN109415540A (en) * | 2016-06-30 | 2019-03-01 | 米其林集团总公司 | Rubber composition comprising epoxy resin and specific amine hardener |
| WO2019105602A1 (en) * | 2017-11-28 | 2019-06-06 | Continental Reifen Deutschland Gmbh | Sulfur-crosslinkable rubber mixture, vulcanizate of the rubber mixture, and vehicle tyre |
| CN110087900A (en) * | 2016-12-20 | 2019-08-02 | 米其林集团总公司 | For delivering the tire including novel tread of maximum type vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2693467A1 (en) | 1992-07-08 | 1994-01-14 | Michelin & Cie | Process and composition for the use of substituted melamines as novolak resin hardeners |
| ES2317651T3 (en) | 1996-04-01 | 2009-04-16 | Cabot Corporation | NEW ELASTOMERIC COMPOUNDS, METHODS AND APPLIANCES. |
| PL189105B1 (en) | 1997-09-30 | 2005-06-30 | Cabot Corp | Mixture of elastomeric composites and methods of obtaining them |
| EP1595847B1 (en) | 1997-11-28 | 2009-11-11 | Compagnie Generale Des Etablissements Michelin | Reinforcing aluminium filler and rubber composition containing this filler |
| CA2338162A1 (en) | 1999-05-28 | 2000-12-07 | Emmanuel Custodero | Diene elastomer and reinforcing titanium oxide based rubber composition for a pneumatic tyre |
| AU2002210430A1 (en) | 2000-07-31 | 2002-02-13 | Michelin Recherche Et Technique S.A. | Running tread for tyre |
| SE519792C2 (en) | 2001-08-17 | 2003-04-08 | Volvo Lastvagnar Ab | Method for estimating the mass of a vehicle which is carried on a road with a varying slope and method for estimating the slope of the road on which a vehicle is driven |
-
2020
- 2020-03-10 FR FR2002369A patent/FR3108118B1/en active Active
-
2021
- 2021-03-04 CN CN202180020014.8A patent/CN115243906A/en active Pending
- 2021-03-04 CA CA3168388A patent/CA3168388A1/en active Pending
- 2021-03-04 WO PCT/FR2021/050370 patent/WO2021181032A1/en unknown
- 2021-03-04 EP EP21714651.3A patent/EP4117937A1/en active Pending
- 2021-03-04 JP JP2022554629A patent/JP2023517609A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5096978A (en) * | 1988-10-03 | 1992-03-17 | Monsanto Company | Vulicanizable synthetic rubber compositions cure-activated by substituted ureas |
| JP2000248117A (en) * | 1999-02-24 | 2000-09-12 | Goodyear Tire & Rubber Co:The | Silica-filled diene-based rubber containing tin organic acid salt compound |
| FR2854404A1 (en) * | 2003-04-29 | 2004-11-05 | Michelin Soc Tech | PROCESS FOR OBTAINING A GRAFT ELASTOMER WITH FUNCTIONAL GROUPS ALONG THE CHAIN AND RUBBER COMPOSITIONS |
| CN102575068A (en) * | 2009-10-14 | 2012-07-11 | 米其林技术公司 | Rubber composition including an epoxide resin |
| CN104487503A (en) * | 2012-07-25 | 2015-04-01 | 米其林集团总公司 | Rubber composition comprising an epoxy resin and a polyimine hardener |
| CN104884521A (en) * | 2012-12-17 | 2015-09-02 | 米其林企业总公司 | Tyre comprising a rubber composition comprising an epoxy resin and a polyacid |
| CN106687495A (en) * | 2014-09-19 | 2017-05-17 | 横滨橡胶株式会社 | Epoxy resin composition for fiber-reinforced composite material, method for producing epoxy resin composition for fiber-reinforced composite material, prepreg, and honeycomb panel |
| CN107250201A (en) * | 2015-03-09 | 2017-10-13 | 住友橡胶工业株式会社 | Tire |
| CN108136829A (en) * | 2015-10-09 | 2018-06-08 | 米其林集团总公司 | Tire with the composition comprising imidazolium compounds |
| CN109415540A (en) * | 2016-06-30 | 2019-03-01 | 米其林集团总公司 | Rubber composition comprising epoxy resin and specific amine hardener |
| CN108299897A (en) * | 2016-08-30 | 2018-07-20 | 上海涛瀚橡塑制品有限公司 | Utilize the preparation method of waste rubber grain in water-repellent paint made of waste rubber grain and its water-repellent paint |
| CN110087900A (en) * | 2016-12-20 | 2019-08-02 | 米其林集团总公司 | For delivering the tire including novel tread of maximum type vehicle |
| WO2019105602A1 (en) * | 2017-11-28 | 2019-06-06 | Continental Reifen Deutschland Gmbh | Sulfur-crosslinkable rubber mixture, vulcanizate of the rubber mixture, and vehicle tyre |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3108118A1 (en) | 2021-09-17 |
| JP2023517609A (en) | 2023-04-26 |
| FR3108118B1 (en) | 2022-07-15 |
| WO2021181032A1 (en) | 2021-09-16 |
| CA3168388A1 (en) | 2021-09-16 |
| EP4117937A1 (en) | 2023-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109415540B (en) | Rubber composition comprising an epoxy resin and a specific amine hardener | |
| US8877839B2 (en) | Rubber composition including an expoxide resin | |
| AU2017371532B2 (en) | Tyre comprising a rubber composition based on epoxidized polyisoprene | |
| JP2013504675A (en) | Rubber composition containing phenolic resin | |
| CN110382610B (en) | Tire having a composition comprising an ethylene-rich elastomer, a peroxide and zinc acrylate | |
| CN110418722B (en) | Tire with composition comprising ethylene-rich elastomer, peroxide and multifunctional acrylate derivative | |
| US20150337109A1 (en) | Tire comprising a rubber composition comprising an epoxide elastomer crosslinked with a polycarboxylic acid | |
| US20200317892A1 (en) | High-modulus rubber composition comprising a vulcanization ultra-accelerator | |
| US20200385559A1 (en) | High modulus rubber composition comprising an effective sulfur crosslinking system | |
| AU2012311729B2 (en) | Off-road tyre tread | |
| CN112368328A (en) | R-based rubber composition | |
| CN112912257B (en) | Rubber composition based on epoxy resin, amine hardener and imidazole | |
| CN115243906A (en) | Rubber composition based on an epoxy resin and a hardener having high retardation | |
| CN111278663A (en) | Tyre provided with an inner layer made of at least an isoprene elastomer, a reinforcing resin and a metal salt | |
| CN112334324B (en) | Composition comprising a butadiene elastomer and a specific filler and tire comprising this composition | |
| CN115279830B (en) | Rubber composition based on epoxy resin and hardener with high delay | |
| CN113748027B (en) | Tire tread with improved rolling resistance and wear | |
| CN111936321A (en) | Tire having beads comprising a specific rubber composition | |
| CN113015630B (en) | Tyre provided with a tread | |
| US20220251344A1 (en) | Tire having external sidewalls | |
| US20210115218A1 (en) | Rubber composition comprising a reinforcing filler with a small specific surface area | |
| CN118043209A (en) | Tire with tread comprising reinforcing elements | |
| CN115427236A (en) | Rubber composition comprising low-melting polyethylene | |
| CN117615918A (en) | Rubber composition | |
| CN114616274A (en) | Rubber composition comprising a suitable filler and a suitable crosslinking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |