JPH0491148A - Self-adhesive film for packaging - Google Patents
Self-adhesive film for packagingInfo
- Publication number
- JPH0491148A JPH0491148A JP20957990A JP20957990A JPH0491148A JP H0491148 A JPH0491148 A JP H0491148A JP 20957990 A JP20957990 A JP 20957990A JP 20957990 A JP20957990 A JP 20957990A JP H0491148 A JPH0491148 A JP H0491148A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- weight
- olefin copolymer
- film
- self
- 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
- 239000002313 adhesive film Substances 0.000 title claims description 9
- 238000004806 packaging method and process Methods 0.000 title description 4
- 239000004711 α-olefin Substances 0.000 claims abstract description 26
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000005977 Ethylene Substances 0.000 claims abstract description 22
- 229920001577 copolymer Polymers 0.000 claims abstract description 20
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims abstract description 19
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims abstract description 14
- -1 polyethylene Polymers 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000004698 Polyethylene Substances 0.000 claims abstract description 9
- 229920000573 polyethylene Polymers 0.000 claims abstract description 9
- 238000009835 boiling Methods 0.000 claims abstract description 7
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000000113 differential scanning calorimetry Methods 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000007334 copolymerization reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 16
- 150000003609 titanium compounds Chemical class 0.000 description 12
- 239000004708 Very-low-density polyethylene Substances 0.000 description 11
- 239000011949 solid catalyst Substances 0.000 description 11
- 229910052719 titanium Inorganic materials 0.000 description 11
- 239000010936 titanium Substances 0.000 description 11
- 229920001866 very low density polyethylene Polymers 0.000 description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 10
- 238000006116 polymerization reaction Methods 0.000 description 10
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229920000092 linear low density polyethylene Polymers 0.000 description 8
- 239000004707 linear low-density polyethylene Substances 0.000 description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 5
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000005033 polyvinylidene chloride Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910003480 inorganic solid Inorganic materials 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 150000002902 organometallic compounds Chemical class 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920005606 polypropylene copolymer Polymers 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- UBZYKBZMAMTNKW-UHFFFAOYSA-J titanium tetrabromide Chemical compound Br[Ti](Br)(Br)Br UBZYKBZMAMTNKW-UHFFFAOYSA-J 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- CMAOLVNGLTWICC-UHFFFAOYSA-N 2-fluoro-5-methylbenzonitrile Chemical compound CC1=CC=C(F)C(C#N)=C1 CMAOLVNGLTWICC-UHFFFAOYSA-N 0.000 description 1
- BDBNCVOMHKVOST-UHFFFAOYSA-K CCCCCO[Ti](Cl)(Cl)Cl Chemical compound CCCCCO[Ti](Cl)(Cl)Cl BDBNCVOMHKVOST-UHFFFAOYSA-K 0.000 description 1
- NTWOIGOPFDMZAE-UHFFFAOYSA-M CCO[Ti](Cl)(OCC)OCC Chemical compound CCO[Ti](Cl)(OCC)OCC NTWOIGOPFDMZAE-UHFFFAOYSA-M 0.000 description 1
- ZALOHOLPKHYYAX-UHFFFAOYSA-L CO[Ti](Cl)(Cl)OC Chemical compound CO[Ti](Cl)(Cl)OC ZALOHOLPKHYYAX-UHFFFAOYSA-L 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229940069096 dodecene Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- XGZNHFPFJRZBBT-UHFFFAOYSA-N ethanol;titanium Chemical compound [Ti].CCO.CCO.CCO.CCO XGZNHFPFJRZBBT-UHFFFAOYSA-N 0.000 description 1
- RMTCVMQBBYEAPC-UHFFFAOYSA-K ethanolate;titanium(4+);trichloride Chemical compound [Cl-].[Cl-].[Cl-].CCO[Ti+3] RMTCVMQBBYEAPC-UHFFFAOYSA-K 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- ZEIWWVGGEOHESL-UHFFFAOYSA-N methanol;titanium Chemical compound [Ti].OC.OC.OC.OC ZEIWWVGGEOHESL-UHFFFAOYSA-N 0.000 description 1
- QZCOACXZLDQHLQ-UHFFFAOYSA-M methanolate titanium(4+) chloride Chemical compound [Cl-].[Ti+4].[O-]C.[O-]C.[O-]C QZCOACXZLDQHLQ-UHFFFAOYSA-M 0.000 description 1
- OKENUZUGNVCOMC-UHFFFAOYSA-K methanolate titanium(4+) trichloride Chemical compound [Cl-].[Cl-].[Cl-].CO[Ti+3] OKENUZUGNVCOMC-UHFFFAOYSA-K 0.000 description 1
- 125000002950 monocyclic group Chemical group 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 125000001741 organic sulfur group Chemical group 0.000 description 1
- 150000002899 organoaluminium compounds Chemical class 0.000 description 1
- 150000002901 organomagnesium compounds Chemical class 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- FLALGSYYVIWTFQ-UHFFFAOYSA-K propan-2-olate;titanium(4+);trichloride Chemical compound [Cl-].[Cl-].[Cl-].CC(C)O[Ti+3] FLALGSYYVIWTFQ-UHFFFAOYSA-K 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- NLLZTRMHNHVXJJ-UHFFFAOYSA-J titanium tetraiodide Chemical compound I[Ti](I)(I)I NLLZTRMHNHVXJJ-UHFFFAOYSA-J 0.000 description 1
- DPNUIZVZBWBCPB-UHFFFAOYSA-J titanium(4+);tetraphenoxide Chemical compound [Ti+4].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 DPNUIZVZBWBCPB-UHFFFAOYSA-J 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 1
- LFXVBWRMVZPLFK-UHFFFAOYSA-N trioctylalumane Chemical compound CCCCCCCC[Al](CCCCCCCC)CCCCCCCC LFXVBWRMVZPLFK-UHFFFAOYSA-N 0.000 description 1
- 229920001862 ultra low molecular weight polyethylene Polymers 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Wrappers (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野コ
本発明はエチレン・α−オレフィン共重合体系フィルム
に関し、自己粘着性、透明性が良好であって、かつカッ
ト性および電子レンジ特性に優れた家庭用、業務用ラン
プフィルム及びマスキングフィルムに関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an ethylene/α-olefin copolymer film that has good self-adhesiveness and transparency, and excellent cuttability and microwave oven properties. Related to household and commercial lamp films and masking films.
[従来の技術]
従来、ラップフィルムはポリ塩化ビニリデン樹脂(PV
DCと略す)を主体とするフィルム、高圧法ポリエチレ
ン(HPLDPEと略す)あるいは直鎖状低密度ポリエ
チレン(LLDPEと略す)とHPLDPEを配合した
フィルムなどが提案され実用化されている。このラップ
フィルムには、自己粘着性の他にカット性、包装時の強
度、透明性、電子レンジ特性(耐熱性)、安全性や環境
を汚染しないことなどが求められている。[Conventional technology] Conventionally, wrap films are made of polyvinylidene chloride resin (PV
Films mainly composed of high-pressure polyethylene (abbreviated as HPLDPE), or films containing linear low-density polyethylene (abbreviated as LLDPE) and HPLDPE have been proposed and put into practical use. In addition to self-adhesiveness, this wrap film is required to have cuttability, strength during packaging, transparency, microwave oven properties (heat resistance), safety, and not polluting the environment.
しかしながら、PVDCやポリ塩化ビニル樹脂は塩素が
多量に含まれているため、焼却時に塩素ガスを発生した
り、また多量に含まれる可塑剤のを害性などが問題とな
っている。また、PVDC製ラップフィルムは二軸延伸
されているので、カット時に斜めに裂けやすく、電子レ
ンジで加熱した場合など著しく収縮する欠点がある。こ
のため、このような問題点のないHPLDPEが単独で
使用されているが、耐熱性が十分ではなく、また自己粘
着性が非常に低く、種々の粘着付与剤を添加しなければ
ならない(特公昭58−12141号公報)。粘着付与
剤が過剰にあると、粘着付与剤がフィルム表面にブリー
ドしてべたつきを起こし、また逆に少なすぎると適度な
粘着性が得られないという問題がある。HPLDPEと
LLDPEからなる組成物に液状ポリブテンを粘着付与
剤として添加した包装フィルム(特開昭57−1823
41号公報)も開示されているが、粘着付与剤のブリー
ドアウトの問題は避けられない。However, since PVDC and polyvinyl chloride resins contain a large amount of chlorine, they generate chlorine gas when incinerated, and the plasticizers contained in large amounts are harmful. Furthermore, since the PVDC wrap film is biaxially stretched, it tends to tear diagonally when cut and has the disadvantage of shrinking significantly when heated in a microwave oven. For this reason, HPLDPE, which does not have these problems, is used alone, but it does not have sufficient heat resistance and has very low self-adhesiveness, so it is necessary to add various tackifiers. 58-12141). If there is too much tackifier, the tackifier will bleed onto the surface of the film and cause stickiness, while if it is too little, it will not be possible to obtain adequate tackiness. A packaging film prepared by adding liquid polybutene as a tackifier to a composition consisting of HPLDPE and LLDPE (Japanese Patent Laid-Open No. 57-1823)
No. 41) is also disclosed, but the problem of bleed-out of the tackifier is unavoidable.
一方、LLDPE単独のラップフィルムは、自己粘着性
が不十分の上、斜めに裂けやすい等の問題点があり、H
PLDPE単独のラップフィルムは、上記のような問題
点があるので、LLDPEにHPLDPEを配合して両
者の欠点をカバーする方法(特公昭54−25952号
公報、特公平1−48132号公報)、あるいは更にシ
リコーン系オイルや防曇剤を配合したラップフィルム(
特開平2−133433号公報)が提案されている。On the other hand, wrap films made of LLDPE alone have problems such as insufficient self-adhesiveness and the tendency to tear diagonally.
Wrap films made of PLDPE alone have the above-mentioned problems, so there is a method to cover the drawbacks of both by blending HPLDPE with LLDPE (Japanese Patent Publication No. 54-25952, Japanese Patent Publication No. 1-48132), or Furthermore, a wrap film containing silicone oil and anti-fog agent (
JP-A-2-133433) has been proposed.
しかし、これらの方法で得られるフィルムは必ずしも自
己粘着性がなく、HPLDPEの配合量が多くなると粘
着性が低下し、また配合量が少なくなるとカット性が悪
くなる欠点があり、またシリコーン系オイルや防曇剤を
配合するとブリードアウトの問題やコストアップの問題
もあるなど、包装用自己粘着フィルムとしては未だ改良
の余地がある。However, the films obtained by these methods do not necessarily have self-adhesive properties, and have the disadvantage that when the amount of HPLDPE is increased, the adhesion decreases, and when the amount of HPLDPE is decreased, the cuttability deteriorates. There is still room for improvement as a self-adhesive film for packaging, as adding an antifogging agent can cause problems such as bleed-out and increased costs.
[発明が解決しようとする問題点コ
本発明はこれらの問題点を解消し、粘着付与剤を配合し
なくても自己粘着性に優れ、且つカット性、包装時の強
度、透明性さらに電子レンジ特性(耐熱性)に優れた、
自己粘着性フィルムを提供することを目的とする。[Problems to be Solved by the Invention] The present invention solves these problems and has excellent self-adhesiveness without adding a tackifier, as well as cuttability, strength and transparency during packaging, and microwave oven resistance. Excellent properties (heat resistance)
The purpose is to provide a self-adhesive film.
[問題を解決するための手段]
本発明は、下記(a)に対して、(b)〜(d)から選
ばれる少なくとも一種を混合溶融し製膜して得られる自
己粘着性フィルムを提供するものである。[Means for solving the problem] The present invention provides a self-adhesive film obtained by mixing and melting at least one selected from (b) to (d) for the following (a). It is something.
(a)Xチレンと炭素数3〜12のα−オレフィンとを
共重合させて得られる下記(I)〜(III)の性状を
満足するエチレン・α−オレフィン共重合体
80〜20重量部(I)密度0.860
〜0.910g/c+o3未満、(II)示差走査熱量
測定法(DSC)による最大ピーク温度100℃以上、
(III)沸l1n−へキサン不溶分10重量部以上。(a) Ethylene/α-olefin copolymer satisfying the following properties (I) to (III) obtained by copolymerizing X-tyrene and α-olefin having 3 to 12 carbon atoms.
80-20 parts by weight (I) Density 0.860
- less than 0.910 g/c+o3, (II) Maximum peak temperature measured by differential scanning calorimetry (DSC) of 100°C or more, (III) Boiling l1n-hexane insoluble content of 10 parts by weight or more.
(b)密度0.91−0.97g/cm3のエチレン・
α−オレフィン共重合体 20〜80重量部(c)高圧
法ポリエチレンまたはその共重合体10〜80重量部
(d)プロピレン(共)重合体10〜30重量部以下に
本発明の内容を詳述する。(b) Ethylene with a density of 0.91-0.97 g/cm3.
α-olefin copolymer: 20 to 80 parts by weight (c) High-pressure polyethylene or its copolymer: 10 to 80 parts by weight (d) Propylene (co)polymer: 10 to 30 parts by weight The content of the present invention will be described in detail below. do.
本発明に使用する(a)エチレン中α−オレフィン重合
体とは最近開発された超低密度ポリエチレン(VLDP
E)であり、更に詳しくはエチレンと炭素数3〜12の
α−オレフィンとの共重合体であって前記(I)〜(I
II)の性状を満足するものであり、本発明者等はこの
VLDPEを自己粘着フィルムの素材として用いるとそ
の優れた特性が発揮され、優れた自己粘着フィルムが得
られることを見いだし、本発明を完成した。(a) The α-olefin polymer in ethylene used in the present invention is a recently developed very low density polyethylene (VLDP).
E), more specifically, it is a copolymer of ethylene and an α-olefin having 3 to 12 carbon atoms, and is a copolymer of ethylene and an α-olefin having 3 to 12 carbon atoms.
The present inventors have discovered that when this VLDPE is used as a material for a self-adhesive film, its excellent properties are exhibited and an excellent self-adhesive film can be obtained. completed.
上記VLDPEは、密度が0.8[i−0,910g/
cm3であり、示差走査熱量測定法(DSC)による最
大ピーク温度(T、、)60℃以上、かつ沸lRn−ヘ
キサン不溶分10重量%以上の性状を存し、直鎖状低密
度ポリエチレンとエチレン−α−オレフィン共重合体ゴ
ムとの中間の性状を示す新しいポリエチレンである。The above VLDPE has a density of 0.8[i-0,910g/
cm3, has a maximum peak temperature (T, ) of 60°C or higher as measured by differential scanning calorimetry (DSC), and has a boiling point insoluble in Rn-hexane of 10% by weight or higher, which is similar to linear low-density polyethylene and ethylene. - It is a new polyethylene that exhibits properties intermediate to those of α-olefin copolymer rubber.
このVLDPEはLLDPEが示す高結晶部分とエチレ
ン−α−オレフィン共重合体ゴムが示す非晶部分とを合
わせ持つ樹脂であって、前者の特徴である機械的強度、
耐熱性などと、後者の特徴である自己粘着性、ゴム状弾
性、耐低温衝撃性などがバランスよく共存しており、本
発明に用いるときは極めて有用である。This VLDPE is a resin that has both the highly crystalline part shown by LLDPE and the amorphous part shown by ethylene-α-olefin copolymer rubber.
Heat resistance and the latter characteristics such as self-adhesiveness, rubber-like elasticity, and low-temperature impact resistance coexist in a well-balanced manner, making it extremely useful when used in the present invention.
具体的なα−オレフィンとしては、プロピレフ1 1−
ブテン、4−メチル−1−ペンテン、1−ヘキサン、1
−オクテン、1−ドデセンなどを挙げることができる。As a specific α-olefin, propyref 1 1-
Butene, 4-methyl-1-pentene, 1-hexane, 1
-octene, 1-dodecene, and the like.
これらのうちとくに好ましいのは1−ブテン、4−メチ
ル−1−ペンテン、1−ヘキサン、1−オクテンである
。エチレン共重合体中のα−オレフィン含有量は5〜4
0モル%であることが好ましい。Among these, particularly preferred are 1-butene, 4-methyl-1-pentene, 1-hexane, and 1-octene. The α-olefin content in the ethylene copolymer is 5 to 4
Preferably it is 0 mol%.
mVLDPEは、少なくともマグネシウム及びチタンを
含有する固体触媒成分と有機アルミニウム化合物とから
なる触媒系を用いて製造することができる。mVLDPE can be produced using a catalyst system consisting of a solid catalyst component containing at least magnesium and titanium and an organoaluminium compound.
該固体触媒成分としては、金属マグネシウム;水酸化マ
グネシウム;酸化マグネシウム;塩化マグネシウムなど
のマグネシウム塩;ケイ素、アルミニウム、カルシウム
;炭酸マグネシウムから選ばれる元素とマグネ7ウム原
子とを含有する複塩、複酸化物、炭酸塩、塩化物、ある
いは水酸化物など;さらにはこれらの無機質固体化合物
を含酸化化合物、含硫黄化合物、芳香族炭化水素、ハロ
ゲン含有物質で処理または反応させたものなどマグネシ
ウムを含む無機質固体化合物にチタン化合物を公知の方
法により担持させたものが挙げられる。The solid catalyst component includes magnesium metal; magnesium hydroxide; magnesium oxide; magnesium salts such as magnesium chloride; double salts and double oxides containing elements selected from magnesium metal; magnesium hydroxide; magnesium chloride; silicon, aluminum, calcium; and magnesium carbonate; compounds, carbonates, chlorides, or hydroxides; and inorganic substances containing magnesium, such as those obtained by treating or reacting these inorganic solid compounds with oxidized compounds, sulfur-containing compounds, aromatic hydrocarbons, or halogen-containing substances. Examples include those in which a titanium compound is supported on a solid compound by a known method.
上記の含酸素化合物としては、たとえば水;アルコール
、フェノール、ケトン、アルデヒド、カルボン酸、エス
テル、ポリシロキサン、酸アミドなどの育機含酸素化合
物;金属アルコ牛シト、金属のオキシ塩化物などの無機
系含酸素化合物を例示することができる。The oxygen-containing compounds mentioned above include, for example, water; nucleating oxygen-containing compounds such as alcohols, phenols, ketones, aldehydes, carboxylic acids, esters, polysiloxanes, and acid amides; Examples include oxygen-containing compounds.
含硫黄化合物としては、チオール、チオエーテルのよう
な有機、含硫黄化合物、二酸化硫黄、三酸化硫黄、硫酸
のような無機硫黄化合物を例示することができる。Examples of the sulfur-containing compound include organic sulfur-containing compounds such as thiol and thioether, and inorganic sulfur compounds such as sulfur dioxide, sulfur trioxide, and sulfuric acid.
芳香族炭化水素としては、ベンゼン、トルエン、キシレ
ン、アントラセン、フェナントレンのような各種の単環
および多環および多環の芳香族炭化水素化合物を例示す
ることができる。Examples of aromatic hydrocarbons include various monocyclic, polycyclic, and polycyclic aromatic hydrocarbon compounds such as benzene, toluene, xylene, anthracene, and phenanthrene.
ハロゲン含を物質としては、塩素、塩化水素、金属塩化
物、有機ハロゲン化物のような化合物を例示することが
できる。Examples of halogen-containing substances include compounds such as chlorine, hydrogen chloride, metal chlorides, and organic halides.
一方マグネ/ウムを含む無機質固体化合物に担持させる
チタン化合物としては、チタンのハロゲン化物、アルフ
キンハロゲン化物、アルコキシド、ハロゲン化酸化物な
どを挙げることができる。チタン化合物としては4価の
チタン化合物と3価のチタン化合物が好適であり、4価
のチタン化合物としては具体的には一般式T、(OR)
、、X4−4(ここでRは炭素数1〜20のアルキル基
、アリール基またはアラルキル基を示し、Xはハロゲン
原子を示し、nは0≦n≦4の整数である)で示される
ものが好ましく、四塩化チタン、四臭化チタン、四ヨウ
化チタン、モノメトキシトリクロロチタン、ジメトキシ
ジクロロチタン、トリメトキシモノクロロチタン、テト
ラメトキシチタン、モノエトキシトリクロロチタン、ジ
ェトキシジクロロチタン、トリエトキシモノクロロチタ
ン、テトラエトキシチタン、モノイソプロポキシトリク
ロロチタン、ノイソブロボキンノクロロチタン、トリイ
ソプロポキシモノクロロチタン、テトライソプロポキシ
チタン、モノブトキノトリクロロチタン、ジブトキシジ
クロロチタン、モノペントキシトリクロロチタン、モノ
フェノキジトリクロロチタン、テトラフェノキシチタン
などを挙げることができる。3価のチタン化合物として
は、四塩化チタン、四臭化チタンなどの四ハロゲン化チ
タンを水素、アルミニウム、チタンあるいは周期律表I
〜■族金属の有機金属化合物により還元して得られる三
ハロゲン化チタンが挙げられる。また−船底T i (
OR)、X4−m(ここでRは炭素数1〜20のアルキ
ル基、アリール基またはアラルキル基を示し、Xはハロ
ゲン原子を示し、mはOSm≦4の整数である)で示さ
れる4価ノハロゲン化アレレコキンチタンを周期律表1
〜m族金属の有機金属化合物により還元して得られる3
価のチタン化合物が挙げられる。On the other hand, examples of the titanium compound supported on the inorganic solid compound containing Mg/U include titanium halides, Alfquine halides, alkoxides, and halogenated oxides. Preferred titanium compounds are tetravalent titanium compounds and trivalent titanium compounds, and specific examples of tetravalent titanium compounds include general formulas T and (OR).
,, X4-4 (where R represents an alkyl group, aryl group, or aralkyl group having 1 to 20 carbon atoms, X represents a halogen atom, and n is an integer of 0≦n≦4). Preferred are titanium tetrachloride, titanium tetrabromide, titanium tetraiodide, monomethoxytrichlorotitanium, dimethoxydichlorotitanium, trimethoxymonochlorotitanium, tetramethoxytitanium, monoethoxytrichlorotitanium, jetoxydichlorotitanium, triethoxymonochlorotitanium, Tetraethoxytitanium, monoisopropoxytrichlorotitanium, noisobroboquine nochlorotitanium, triisopropoxymonochlorotitanium, tetraisopropoxytitanium, monobutoquinotrichlorotitanium, dibutoxydichlorotitanium, monopentoxytrichlorotitanium, monophenokiditrichlorotitanium , tetraphenoxy titanium, and the like. As trivalent titanium compounds, titanium tetrahalides such as titanium tetrachloride and titanium tetrabromide are combined with hydrogen, aluminum, titanium, or titanium of the periodic table I.
Examples include titanium trihalides obtained by reduction with organometallic compounds of group metals. Also - bottom T i (
OR), Nohalogenated arelecoquine titanium in the periodic table 1
~3 obtained by reduction with an organometallic compound of group m metal
Examples include titanium compounds with high valence.
これらのチタン化合物のうち、4価のチタン化合物がと
くに好ましい。Among these titanium compounds, tetravalent titanium compounds are particularly preferred.
他の触媒系の例としては、固体触媒成分としていわゆる
グリニヤール化合物などの有機マグネシウムとチタン化
合物との反応生成物を用いることができる。As an example of other catalyst systems, reaction products of organomagnesium and titanium compounds, such as so-called Grignard compounds, can be used as solid catalyst components.
また他の触媒系の例としては、固体触媒成分としてSi
O3、A1゜03などの無機酸化物と前記の少なくとも
マグネシウム及びチタンを含佇する固体触媒を接触させ
て得られる固体物質を用いることもできる。In addition, as an example of other catalyst systems, Si is used as a solid catalyst component.
It is also possible to use a solid material obtained by contacting an inorganic oxide such as O3 or A1°03 with the solid catalyst containing at least magnesium and titanium.
上記した固体触媒成分と組み合わせるべき有機アルミニ
ウム化合物の具体的な例としては、−船底R3A l、
R2A I X、 RA IX2. R2A 1OR
,RAI (OR)XおよびR3Al□X3の有機アル
ミニウム化合物(ここでRは炭素数1〜20のアルキル
基、アリール基またはアラルキル基を示し、Xはハロゲ
ン原子を示し、Rは同一でもまた異なってもよい)で示
される化合物が好ましく、トリエチルアルミニウム、ト
リイソブチルアルミニウム、トリエチルアルミニウム、
トリオクチルアルミニウム、ジエチルアルミニウムクロ
リド、ジエチルアルミニウムクロリド、エチルアルミニ
ウムセスキクロリドおよびこれらの混合物などが挙げら
れる。Specific examples of organoaluminum compounds to be combined with the above-mentioned solid catalyst components include - bottom R3A l;
R2A IX, RA IX2. R2A 1OR
, RAI (OR) Preferable are compounds represented by triethylaluminum, triisobutylaluminum, triethylaluminum, triethylaluminum, triethylaluminum,
Examples include trioctylaluminum, diethylaluminum chloride, diethylaluminum chloride, ethylaluminum sesquichloride, and mixtures thereof.
を機アルミニウム化合物の使用量は特に制限されないが
、通常チタン化合物に対して0.1〜1.000モル倍
使用することができる。The amount of the aluminum compound to be used is not particularly limited, but it can usually be used in an amount of 0.1 to 1.000 times the amount of the titanium compound.
重合反応は通常のチグラー型触媒によるオレフィンの重
合反応と同様にして行われる。すなわち反応はすべて実
質的に酸素、水などを絶った状態で、気相または不活性
溶媒の存在かもしくはモノマー自体を溶媒とする液相で
行われる。オレフィンの重合反応は温度20〜300°
C1好ましくは40〜200℃であり、圧力は常圧ない
し70kg/cm2G、好ましくは2kg/cm2Gな
いし60kg/cm2Gである。分子量の調節は重合温
度、触媒のモル比などの重合条件を変えることによって
もある程度可能であるが、重合系中に水素を添加するこ
とにより効果的に行われる。The polymerization reaction is carried out in the same manner as a typical olefin polymerization reaction using a Ziegler type catalyst. That is, all reactions are carried out substantially in the absence of oxygen, water, etc., in the gas phase or in the liquid phase in the presence of an inert solvent or in the monomer itself as the solvent. Olefin polymerization reaction occurs at a temperature of 20 to 300°
C1 is preferably 40 to 200°C, and the pressure is normal pressure to 70 kg/cm2G, preferably 2 kg/cm2G to 60 kg/cm2G. Although the molecular weight can be adjusted to some extent by changing polymerization conditions such as polymerization temperature and catalyst molar ratio, it is effectively achieved by adding hydrogen to the polymerization system.
水素濃度、重合温度などの重合条件の異なった2段階ま
たはそれ以上の多段階の重合反応もなんら支障なく用い
て製造することもできる。A two-stage or more multi-stage polymerization reaction with different polymerization conditions such as hydrogen concentration and polymerization temperature can also be carried out without any problem.
本発明に用いる (a)エチレン・α−オレフィン共重
合体であるVLDPEは、固体触媒成分として従来のバ
ナジウムを主体とする固体触媒成分あるいは従来のチタ
ンを主体とする固体触媒成分を使用して得られるエチレ
ン・α−オレフィン共重合体とは明確に区別される。両
者は共重合体を構成するモノマーが同一であり、かつ密
度が同一であっても、DSCによるT、は本発明の共重
合体の方が高く、また沸IIC[i不溶分は本発明の共
重合体が10重量%以上であるのに対し、バナジウム含
有触媒や従来のチタン含有触媒を用いた場合は同不溶分
が存在しないか、または極めて少量である。(a) VLDPE, which is an ethylene/α-olefin copolymer used in the present invention, is obtained by using a conventional solid catalyst component mainly consisting of vanadium or a conventional solid catalyst component mainly consisting of titanium as a solid catalyst component. It is clearly distinguished from the ethylene/α-olefin copolymer. Even though the monomers constituting the copolymers are the same and the densities are the same, the copolymer of the present invention has a higher T by DSC, and the insoluble matter is higher than the copolymer of the present invention by DSC. While the copolymer has a content of 10% by weight or more, when a vanadium-containing catalyst or a conventional titanium-containing catalyst is used, the insoluble content is absent or is present in a very small amount.
以上のようにして合成された本発明のVLDPEは、密
度が0.860〜0.910g/cm’であることが肝
要であり、好ましくは0.880〜0.905g/cm
3である。またDSCによる最大ピーク温度(T1)は
100℃以上、好ましくは110℃以上が必要である。It is important that the VLDPE of the present invention synthesized as described above has a density of 0.860 to 0.910 g/cm', preferably 0.880 to 0.905 g/cm'.
It is 3. Further, the maximum peak temperature (T1) determined by DSC needs to be 100°C or higher, preferably 110°C or higher.
沸in−ヘキサン不溶分(cEi不溶分)は10重量%
以上が必要であり、好ましくは20〜95重量%である
。Boiling in-hexane insoluble content (cEi insoluble content) is 10% by weight
The amount is preferably 20 to 95% by weight.
本発明で使用する (b)エチレン−α−オレフィン共
重合体は、少なくともチタンおよび/またはバナジウム
を含何する固体触媒成分と有機アルミニウム化合物とか
らなるチーグラ系触媒を用いて重合して製造される公知
の直鎖状低密度ポリエチレン(LLDPE)から高密度
ポリエチレン(HDPE)にわたるものであり、密度は
0.91〜0.97g/cm3、好ましくは0.93g
/cm3以上である。(b) The ethylene-α-olefin copolymer used in the present invention is produced by polymerization using a Ziegler catalyst consisting of a solid catalyst component containing at least titanium and/or vanadium and an organoaluminum compound. It ranges from known linear low density polyethylene (LLDPE) to high density polyethylene (HDPE), and has a density of 0.91 to 0.97 g/cm3, preferably 0.93 g.
/cm3 or more.
本発明で使用する(c) fRr圧法ポリエチレンまた
はその共重合体は高圧ラジカル重合法により得られる公
知のポリエチレンであり、通例、密度が0.910〜0
.940g/cm3で且−)MFRが5以上20未満の
ものが好ましい。その共重合体としては、エチレン−酢
酸ビニル共重合体(EVA)などのエチレン−ビニルエ
ステル共重合体、エチレン−エチルアクリレート共重合
体(EEA)のようなエチレン−(メタ)アクリル酸ア
ルキルエステル共重合体などのエチレン−α、β−カル
ボン酸またはその誘導体との共重合体などがあるが、こ
れらに限定されるものではない。The (c) fRr pressure polyethylene or its copolymer used in the present invention is a known polyethylene obtained by high-pressure radical polymerization, and usually has a density of 0.910 to 0.
.. 940 g/cm3 and -) MFR of 5 or more and less than 20 is preferable. Examples of such copolymers include ethylene-vinyl ester copolymers such as ethylene-vinyl acetate copolymer (EVA), and ethylene-(meth)acrylic acid alkyl ester copolymers such as ethylene-ethyl acrylate copolymer (EEA). Examples include, but are not limited to, copolymers with ethylene-α, β-carboxylic acids or derivatives thereof, such as polymers.
本発明で使用する(d)ポリプロピレン(共)重合体は
、MFR8以上20以下のホモないしランダムタイプの
公知のポリプロピレン(共)重合体を使用することが好
ましい。As the polypropylene (co)polymer (d) used in the present invention, it is preferable to use a known homo to random type polypropylene (co)polymer having an MFR of 8 or more and 20 or less.
本発明の(a)成分VLDPE単独のフィルムは自己粘
着性が強いという点ではラップフィルムに適しているが
、伸び及び引裂き強さが大きいためカット性に欠ける問
題がある。一方(b)〜(d)成分は粘着性がないので
単独ではラップフィルムとしては不適であるが、(a)
成分に配合するとカット性が改良され(a)成分の欠点
が補われる。また、(c)成分および(d)成分はフィ
ルムの使用用途に合わせてさらにフィルムのM(フィル
ムのしなやかさを表し、引張弾性率が大きいとフィルム
の腰が大きくなるという関係がある)を調整するために
配合することができる。A film containing component (a) VLDPE alone of the present invention is suitable for use as a wrap film in that it has strong self-adhesiveness, but has a problem in that it lacks cuttability due to its high elongation and tear strength. On the other hand, components (b) to (d) have no adhesive properties and are therefore unsuitable for use as a wrap film alone, but (a)
When blended with component (a), the cutting properties are improved and the drawbacks of component (a) are compensated for. In addition, components (c) and (d) are used to further adjust the film's M (representing the flexibility of the film, and the relationship is such that the higher the tensile modulus, the greater the stiffness of the film) according to the intended use of the film. It can be blended to
(b)〜(d)成分のMFRが20g/10分以上であ
るとフィルムの強度が低下するため好ましくない。また
(a)成分20〜80重量部にに対して配合する(b)
成分の配合量は20〜80重量部、(c)成分の配合量
は10〜80重量部、(d)成分の配合量は10〜30
重量部であり、これらの範囲から使用用途に合わせて適
宜選択されるものである。If the MFR of components (b) to (d) is 20 g/10 minutes or more, the strength of the film decreases, which is not preferable. Also, (b) is added to 20 to 80 parts by weight of component (a).
The blending amount of the component is 20 to 80 parts by weight, the blending amount of the (c) component is 10 to 80 weight parts, and the blending amount of the (d) component is 10 to 30 parts by weight.
It is a part by weight and is appropriately selected from these ranges depending on the intended use.
(a)成分に(b)〜(c)成分から選ばれる少なくと
も一つを配合し、混合溶融し、成膜して得られる本発明
のフィルムは各成分の各々の長所を大きく発揮させるこ
とができ、自己粘着性、透明性が良好であって、かつカ
ット性および電子レンジ特性に優れ、さらに使用用途に
応じた腰を有するので、家庭用、業務用ラップフィルム
及びマスキングフィルムとして好適である。The film of the present invention obtained by blending component (a) with at least one selected from components (b) to (c), mixing and melting, and forming a film can greatly exhibit the respective advantages of each component. It has good self-adhesiveness and transparency, excellent cuttability and microwave properties, and has a stiffness that suits the purpose of use, making it suitable for household and commercial wrapping films and masking films.
上記各成分を混合溶融し、製膜する際、必要に応じて帯
電防止剤、防曇剤、無機あるいは有機フィラー、酸化防
止剤、滑剤、有機あるいはは無機系顔料、紫外線防止剤
、分散剤、可塑剤、核剤などの公知の添加剤を添加する
ことができる。When mixing and melting the above components to form a film, antistatic agents, antifogging agents, inorganic or organic fillers, antioxidants, lubricants, organic or inorganic pigments, ultraviolet inhibitors, dispersants, Known additives such as plasticizers and nucleating agents can be added.
製膜する方法としては公知のインフレーション法ならび
にTダイ法などを用いることができ、特定の成膜方法を
用いなくても優れた自己粘着フィルムを製造することが
できる。As a film forming method, the well-known inflation method, T-die method, etc. can be used, and an excellent self-adhesive film can be manufactured without using a specific film forming method.
[実施例]
次に実施例により本発明を更に詳しく説明するが、本発
明はこれらによって限定されるものではない。[Examples] Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.
実施例および比較例において使用する(a)〜(d)成
分を以下に示す。Components (a) to (d) used in Examples and Comparative Examples are shown below.
(a)成分:
エチレン・α−オレフィン共重合体(VLDPE)
実質的に無水の塩化マグネシウム、1,2−ジクロロエ
タンおよび四塩化チタンから得られた固体触媒とトリエ
チルアルミニウムとからなる触媒を用いて、エチレンと
1−ブテンとを共重合させてエチレン@1−ブテン共重
合体を得た。Component (a): Ethylene/α-olefin copolymer (VLDPE) Using a solid catalyst obtained from substantially anhydrous magnesium chloride, 1,2-dichloroethane and titanium tetrachloride, and a catalyst consisting of triethylaluminum, Ethylene and 1-butene were copolymerized to obtain an ethylene@1-butene copolymer.
、:、 (7) V L D P E ハ、1−ブテン
含量=10モル%、密度=0.905g/cm’、T、
=118℃、沸騰C6不溶分=60重■%、MFR=
10g/10m1nであった。, :, (7) VLDPE Ha, 1-butene content = 10 mol%, density = 0.905 g/cm', T,
= 118°C, boiling C6 insoluble content = 60% by weight, MFR =
It was 10g/10mln.
(b)成分:
エチレン・α−オレフィン共重合体(1) (LLD
PE−1)
[密度=0.935g/cm3、MFR= 10g/1
0m1n:商品名二白石すニレックスAJ5610、日
本石油化学(株)製コ
エチレンーα−オレフィン共重合K(2)(LLDPE
−2)
[密度=0.923g/cm3、MFR=8g/10m
1n;商品名二白石すニレックスAJ5310、日本石
油化学(株)製]
エチレンΦα−オレフィン共重合体(3) (HDP
E)
[密度=0.948g/cm3、MFR=7g/10m
1n;商品名:白石スタフL/7E870、日本石油化
学(株)製]
(c)成分:
高圧法ポリエチレン(HPLDPE)
[密度=0.917g/cm3、MFR=8g710m
in:商品名;白石レクスロンJ502、日本石油化学
(株)製膜
(d)成分:
ポリプロピレン(PP)
[密度=0.905g/cm’、M F R,= 8g
/10m1n:商品名:白石ボリプOF 155J1日
本石油化学(株)製]
(a)VLDPEのTmおよびCG不溶分の測定方法:
(DSCによるT、の測定法)
熱プレス成形した厚さ100μmのフィルムから約5m
gの試料を精秤し、これをDSCg置にセットし、17
0℃に昇温しで同温度で15m1n保持した後、降温速
度2.5°C/minでO′Cまで冷却する。次にこの
状態から昇温速度10℃/minで170 ’Cまで昇
温を行い、O″Cから170″Cまで昇温する間に現わ
れたピークのうち最大のものの頂点の位置の温度をもっ
てTっとする。Component (b): Ethylene/α-olefin copolymer (1) (LLD
PE-1) [Density=0.935g/cm3, MFR=10g/1
0m1n: Product name Nishiraishi Sunilex AJ5610, coethylene-α-olefin copolymer K (2) (LLDPE manufactured by Japan Petrochemical Co., Ltd.)
-2) [Density=0.923g/cm3, MFR=8g/10m
1n; Trade name Nishiraishi Sunilex AJ5310, manufactured by Nippon Petrochemical Co., Ltd.] Ethylene Φα-olefin copolymer (3) (HDP
E) [Density=0.948g/cm3, MFR=7g/10m
1n; Product name: Shiraishi Stuff L/7E870, manufactured by Nippon Petrochemicals Co., Ltd.] (c) Component: High pressure polyethylene (HPLDPE) [Density = 0.917g/cm3, MFR = 8g710m
in: Product name; Shiraishi Rexron J502, Japan Petrochemical Co., Ltd. Film production (d) Component: Polypropylene (PP) [Density = 0.905 g/cm', M F R, = 8 g
/10m1n: Product name: Shiraishi Volip OF 155J1 manufactured by Nippon Petrochemicals Co., Ltd.] (a) Method for measuring Tm and CG insoluble content of VLDPE: (Measurement method for T by DSC) 100 μm thick film formed by hot press molding Approximately 5m from
Weigh the sample accurately, set it on the DSC g, and
After raising the temperature to 0°C and maintaining the same temperature for 15ml, it was cooled to O'C at a cooling rate of 2.5°C/min. Next, from this state, the temperature is raised to 170'C at a heating rate of 10°C/min. That's it.
(沸騰CG不溶分の測定法)
熱プレスを用いて厚さ200μmのシートを成形し、こ
れから20mmX30mmの7−トを3枚切り取り、そ
れらについて二重管式ソックスレー抽出器を用い沸騰n
−ヘキサンで5hr抽出を行う。n−ヘキサン不溶分を
取り出し、真空乾燥(7hr150°C)後、次式によ
りC6不溶分41%)を算出する。(Measurement method for boiling CG insoluble content) A sheet with a thickness of 200 μm is formed using a heat press, and three 7-sheets of 20 mm x 30 mm are cut out from the sheet.
- Perform a 5 hr extraction with hexane. After taking out the n-hexane insoluble content and vacuum drying (7 hours at 150°C), the C6 insoluble content (41%) was calculated using the following formula.
本発明に用いられる各成分の単独または混合によりフィ
ルムを作りその性能を測定して行った。Films were prepared using the respective components used in the present invention alone or in combination, and their performance was measured.
フィルムの成形装置ならびに条件および物性試験方法の
詳細は下記のとおりである。Details of the film forming apparatus, conditions, and physical property test method are as follows.
成形g置および条件
押出機 田辺機械製50rnrnΦ押出機スクリュ
ー L/D=22フルフラトタイプダイス 600
mm中コートハンガーダイ冷 却 ロール冷却法
押出温度 250℃
製膜速度 30m/min
フィルム厚み 10〜13μm
物性試験方法
ヘイズ(%): J Is KE3714引張破壊
強さ: 〃
引張破壊伸び: 〃
引張弾性率 : 〃
電子レンジ適性:
三菱電機電子レンジRO−1000型を用いて実際調理
を行った後のフィルム状態を肉眼観察した。Molding g position and conditions Extruder Tanabe Kikai 50rnrnΦ extruder screw L/D=22 full flat type die 600
Coat hanger die cooling in mm Roll cooling method Extrusion temperature 250°C Film forming speed 30 m/min Film thickness 10-13 μm Physical property test method Haze (%): J Is KE3714 Tensile strength at break: 〃 Tensile elongation at break: 〃 Tensile modulus : Microwave suitability: The state of the film was visually observed after actual cooking using a Mitsubishi Electric microwave oven model RO-1000.
試験結果を表に示す。The test results are shown in the table.
ラップ性二 1石化学法
フィルム巾15mmX20mmを重ね合わせ5kgの加
重をかけたのち23℃の恒温恒湿室に24時間後放置後
、引張試験で90’剥離強度をポ1j定して得られた数
値を用いた。Wrap property 2: Layer 1 petrochemical method film width 15 mm x 20 mm, apply a load of 5 kg, leave it in a constant temperature and humidity room at 23 degrees Celsius for 24 hours, and then determine the 90' peel strength in a tensile test. Numerical values were used.
カット性:
市販されているラップフィルムのノコ刃ヲ用い評価した
。Cutability: Evaluation was made using a saw blade of a commercially available wrap film.
[発明の効果コ
本発明の自己粘着性フィルムは、特定のエチレン−α−
オレフィン共重合体からなる超低密度ポリエチレン(V
LDPE)と、これに密度0.91〜O−97g/cm
3のエチレン・α−オレフィン共重合体(LLDPE−
HDPE)、高圧法ポリエチレンまたはその共重合体(
HPLDPE)およびプロピレン(共)重合体(PP)
から選ばれる少なくとも一種の(共)重合体を特定量配
合した組成物を用いることにより、自己粘着性、透明性
、カット性、耐熱性および電子レンジ適性にも優れ、使
用用途に応じてフィルムの腰(引張弾性率)をH節する
ことが可能である。このため、家庭用、業務用ラップフ
ィルムおよびマスキングフィルム等として有効に利用さ
れる。[Effects of the Invention] The self-adhesive film of the present invention has a specific ethylene-α-
Ultra-low density polyethylene (V
LDPE) with a density of 0.91 to O-97g/cm
No. 3 ethylene/α-olefin copolymer (LLDPE-
HDPE), high-pressure polyethylene or its copolymer (
HPLDPE) and propylene (co)polymer (PP)
By using a composition containing a specific amount of at least one (co)polymer selected from It is possible to calculate the waist (tensile modulus) by H node. Therefore, it is effectively used as a household and commercial wrap film, a masking film, etc.
出 願 人 日本石油化学株式会社Applicant: Japan Petrochemical Co., Ltd.
Claims (1)
る少なくとも一種を混合溶融し製膜して得られる自己粘
着性フィルム。 (a)エチレンと炭素数3〜12のα−オレフィンとを
共重合させて得られる下記( I )〜(III)の性状を満
足するエチレン・α−オレフィン共重合体80〜20重
量部 ( I )密度0.860〜0.910g/cm^3未満
、 (II)示差走査熱量測定法(DSC)による最大ピーク
温度100℃以上、 (III)沸騰n−ヘキサン不溶分10重量部以上。 (b)密度0.91〜0.97g/cm^3のエチレン
・α−オレフィン共重合体20〜80重量部 (c)高圧法ポリエチレンまたはその共重合体10〜8
0重量部 (d)プロピレン(共)重合体10〜30重量部(1) A self-adhesive film obtained by mixing and melting at least one selected from (b) to (d) with (a) below. (a) 80 to 20 parts by weight of an ethylene/α-olefin copolymer that satisfies the properties (I) to (III) below, obtained by copolymerizing ethylene and an α-olefin having 3 to 12 carbon atoms (I ) Density of 0.860 to less than 0.910 g/cm^3, (II) Maximum peak temperature measured by differential scanning calorimetry (DSC) of 100°C or more, (III) Boiling n-hexane insoluble content of 10 parts by weight or more. (b) 20 to 80 parts by weight of ethylene/α-olefin copolymer with a density of 0.91 to 0.97 g/cm^3 (c) High pressure polyethylene or its copolymer 10 to 8 parts by weight
0 parts by weight (d) 10 to 30 parts by weight of propylene (co)polymer
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20957990A JPH0491148A (en) | 1990-08-07 | 1990-08-07 | Self-adhesive film for packaging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20957990A JPH0491148A (en) | 1990-08-07 | 1990-08-07 | Self-adhesive film for packaging |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0491148A true JPH0491148A (en) | 1992-03-24 |
Family
ID=16575171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20957990A Pending JPH0491148A (en) | 1990-08-07 | 1990-08-07 | Self-adhesive film for packaging |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0491148A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001323114A (en) * | 2000-03-07 | 2001-11-20 | Denki Kagaku Kogyo Kk | Stretched film for hand wrapping |
JP2002327074A (en) * | 2001-05-07 | 2002-11-15 | Denki Kagaku Kogyo Kk | Stretchable film having excellent low temperature property |
JP2002338704A (en) * | 2001-05-14 | 2002-11-27 | Denki Kagaku Kogyo Kk | Stretch film for frozen food |
JP2002347827A (en) * | 2001-05-28 | 2002-12-04 | Denki Kagaku Kogyo Kk | Stretch film for hand-wrapping |
JP2003026821A (en) * | 2001-07-11 | 2003-01-29 | Denki Kagaku Kogyo Kk | Stretch film |
JP2003094509A (en) * | 2001-09-20 | 2003-04-03 | Denki Kagaku Kogyo Kk | Stretch film and method for manufacturing the same |
JP2016108383A (en) * | 2014-12-03 | 2016-06-20 | 三井・デュポンポリケミカル株式会社 | Resin composition for surface protective member and surface protective film or sheet using the same |
-
1990
- 1990-08-07 JP JP20957990A patent/JPH0491148A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001323114A (en) * | 2000-03-07 | 2001-11-20 | Denki Kagaku Kogyo Kk | Stretched film for hand wrapping |
JP2002327074A (en) * | 2001-05-07 | 2002-11-15 | Denki Kagaku Kogyo Kk | Stretchable film having excellent low temperature property |
JP4680413B2 (en) * | 2001-05-07 | 2011-05-11 | 電気化学工業株式会社 | Stretch film with excellent low temperature characteristics |
JP2002338704A (en) * | 2001-05-14 | 2002-11-27 | Denki Kagaku Kogyo Kk | Stretch film for frozen food |
JP4680414B2 (en) * | 2001-05-14 | 2011-05-11 | 電気化学工業株式会社 | Stretch film for frozen food |
JP2002347827A (en) * | 2001-05-28 | 2002-12-04 | Denki Kagaku Kogyo Kk | Stretch film for hand-wrapping |
JP2003026821A (en) * | 2001-07-11 | 2003-01-29 | Denki Kagaku Kogyo Kk | Stretch film |
JP2003094509A (en) * | 2001-09-20 | 2003-04-03 | Denki Kagaku Kogyo Kk | Stretch film and method for manufacturing the same |
JP2016108383A (en) * | 2014-12-03 | 2016-06-20 | 三井・デュポンポリケミカル株式会社 | Resin composition for surface protective member and surface protective film or sheet using the same |
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