CN113631374A - Release sheet - Google Patents
Release sheet Download PDFInfo
- Publication number
- CN113631374A CN113631374A CN202080023455.9A CN202080023455A CN113631374A CN 113631374 A CN113631374 A CN 113631374A CN 202080023455 A CN202080023455 A CN 202080023455A CN 113631374 A CN113631374 A CN 113631374A
- Authority
- CN
- China
- Prior art keywords
- component
- release
- mass
- release sheet
- layer
- 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 claims abstract description 66
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 57
- 125000000524 functional group Chemical group 0.000 claims abstract description 33
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 27
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 19
- 229920000098 polyolefin Polymers 0.000 claims abstract description 19
- 229920003180 amino resin Polymers 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 97
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 23
- 229920000877 Melamine resin Polymers 0.000 claims description 21
- 230000009477 glass transition Effects 0.000 claims description 20
- 239000004640 Melamine resin Substances 0.000 claims description 17
- 239000005062 Polybutadiene Substances 0.000 claims description 10
- 229920002857 polybutadiene Polymers 0.000 claims description 10
- 229920001195 polyisoprene Polymers 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 239000000178 monomer Substances 0.000 description 35
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 30
- 238000000034 method Methods 0.000 description 25
- -1 polyethylene Polymers 0.000 description 22
- 239000002904 solvent Substances 0.000 description 22
- 229920005989 resin Polymers 0.000 description 20
- 239000011347 resin Substances 0.000 description 20
- 239000000758 substrate Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 17
- 239000011248 coating agent Substances 0.000 description 16
- 238000000576 coating method Methods 0.000 description 15
- 230000000903 blocking effect Effects 0.000 description 13
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 12
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 239000000123 paper Substances 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000003377 acid catalyst Substances 0.000 description 9
- 238000004381 surface treatment Methods 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 7
- 125000000217 alkyl group Chemical group 0.000 description 7
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 7
- 229910052794 bromium Inorganic materials 0.000 description 7
- 150000007974 melamines Chemical class 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 6
- 238000005227 gel permeation chromatography Methods 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 125000003277 amino group Chemical group 0.000 description 5
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000007865 diluting Methods 0.000 description 5
- 125000003700 epoxy group Chemical group 0.000 description 5
- 239000012948 isocyanate Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 150000003377 silicon compounds Chemical class 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 150000003961 organosilicon compounds Chemical class 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 208000028659 discharge Diseases 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920001519 homopolymer Polymers 0.000 description 3
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000004645 polyester resin Substances 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- VZXTWGWHSMCWGA-UHFFFAOYSA-N 1,3,5-triazine-2,4-diamine Chemical compound NC1=NC=NC(N)=N1 VZXTWGWHSMCWGA-UHFFFAOYSA-N 0.000 description 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000012776 electronic material Substances 0.000 description 2
- 150000004678 hydrides Chemical class 0.000 description 2
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 150000002513 isocyanates Chemical class 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920013716 polyethylene resin Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 1
- XLPJNCYCZORXHG-UHFFFAOYSA-N 1-morpholin-4-ylprop-2-en-1-one Chemical compound C=CC(=O)N1CCOCC1 XLPJNCYCZORXHG-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000000022 2-aminoethyl group Chemical group [H]C([*])([H])C([H])([H])N([H])[H] 0.000 description 1
- 125000000143 2-carboxyethyl group Chemical group [H]OC(=O)C([H])([H])C([H])([H])* 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 1
- SXIFAEWFOJETOA-UHFFFAOYSA-N 4-hydroxy-butyl Chemical group [CH2]CCCO SXIFAEWFOJETOA-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920003274 CYMEL® 303 LF Polymers 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 229920003270 Cymel® Polymers 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 125000005073 adamantyl group Chemical group C12(CC3CC(CC(C1)C3)C2)* 0.000 description 1
- 238000007754 air knife coating Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000007611 bar coating method Methods 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- QHIWVLPBUQWDMQ-UHFFFAOYSA-N butyl prop-2-enoate;methyl 2-methylprop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.COC(=O)C(C)=C.CCCCOC(=O)C=C QHIWVLPBUQWDMQ-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- VPKDCDLSJZCGKE-UHFFFAOYSA-N carbodiimide group Chemical group N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 238000007607 die coating method Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- GFJVXXWOPWLRNU-UHFFFAOYSA-N ethenyl formate Chemical compound C=COC=O GFJVXXWOPWLRNU-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 150000003949 imides Chemical class 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D115/00—Coating compositions based on rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C09D161/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C09D161/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a release sheet having a release layer and a base material, wherein the release layer is a cured product of a release agent composition containing an acrylic resin (A), an amino resin (B), and a polyolefin (C) having a crosslinkable functional group, the content of the component (B) is 15 mass% or more and 65 mass% or less in 100 mass% of the total content of the component (A), the component (B), and the component (C), and the content of the component (C) is 55 mass% or less in 100 mass% of the total content of the component (A), the component (B), and the component (C).
Description
Technical Field
The present invention relates to a release sheet
Background
In general, a release sheet includes a base material such as paper, plastic film, or polyethylene laminated paper, and a release layer provided on the base material. The release layer can be formed, for example, by coating a release agent composition containing a reactive compound on a substrate and curing it.
Release sheets are widely used as protective sheets for pressure-sensitive adhesive layers of pressure-sensitive adhesive sheets and the like, process films for producing resin sheets, process films for forming ceramic green sheets, process films for producing synthetic leathers, and the like.
As a release agent composition for forming a release layer, a silicone-based release agent composition containing an organic silicon compound such as a silicone resin, siloxane, or silicone oil is widely used.
However, the organosilicon compound sometimes transfers to the contact surface with the release layer, for example, the adhesive layer surface of the adhesive sheet. Further, after the transfer, the vapor may gradually vaporize.
Therefore, when a release sheet having a release layer formed from a silicone-based release agent composition is used for electronic materials, for example, an organic silicon compound is transferred to an electronic component, which may cause corrosion and malfunction of the electronic component.
Therefore, studies have been made to form a release layer without using a silicone-based release agent composition. For example, patent document 1 describes a release sheet having a release layer formed from a release agent composition containing at least polyolefin, isocyanate having three or more isocyanate groups in one molecule, and polyolefin polyol.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2011-52207
Disclosure of Invention
Problems to be solved by the invention
In general, a preferable value of the peeling force of the peeling sheet differs depending on the application and the type of the object to be laminated, and for example, a lower peeling force is desirable in order to facilitate the peeling operation at the time of peeling, but on the other hand, a high peeling force is preferable in the case where the holding property (anti-peeling property) of the object to be laminated is prioritized, and therefore, a peeling sheet having an appropriate peeling force without excessively low peeling force is required. Thus, it is required to design a release agent capable of coping with a release force in conformity with the use pattern of a product manufactured using the release sheet.
Further, the release sheet may be curled depending on the storage condition (for example, storage under high temperature condition or storage over a long period of time). Further, when the release sheets are stacked and stored or when the release sheets are wound into a roll and stored, there is a risk that the release sheets stick to each other. Therefore, the release sheet is required to have characteristics such as curl resistance and blocking resistance in addition to good releasability. In addition, depending on the application in which the release sheet is used, for example, in the application to electronic materials, the release sheet is often required to have resistance (solvent resistance) to an organic solvent.
Accordingly, an object of the present invention is to provide a release sheet having a release layer excellent in all of releasability, curl resistance, blocking resistance and solvent resistance.
Means for solving the problems
The present inventors have found that a release sheet having a release layer, which is a cured product of a release agent composition containing components (a) to (C) described below and containing components (B) and (C) at a specific content, can solve the above problems.
That is, the present invention relates to the following [1] to [7]
[1] A release sheet having a release layer and a base material, wherein,
the release layer is a cured product of a release agent composition comprising an acrylic resin (A), an amino resin (B) and a polyolefin (C) having a crosslinkable functional group,
the content of the component (B) is 15 to 65 mass% based on 100 mass% of the total content of the component (A), the component (B) and the component (C),
the content of the component (C) is 55% by mass or less based on 100% by mass of the total content of the component (A), the component (B) and the component (C).
[2] The release sheet according to the above [1], wherein the component (A) has a glass transition temperature of 10 ℃ or higher.
[3] The release sheet according to the above [1] or [2], wherein the component (B) is a melamine resin.
[4] The release sheet according to any one of the above [1] to [3], wherein the crosslinkable functional group of the component (C) is a hydroxyl group.
[5] The release sheet according to any one of the above [1] to [4], wherein the component (C) is polybutadiene having a crosslinkable functional group or polyisoprene having a crosslinkable functional group.
[6] The release sheet according to any one of the above [1] to [5], wherein the component (C) is a hydrogenated polyolefin having a crosslinkable functional group.
[7] The release sheet according to any one of the above [1] to [6], which has a release force of 500 to 4000mN/20mm when released from the pressure-sensitive adhesive layer.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, a release sheet having a release layer excellent in all of releasability, curl resistance, blocking resistance and solvent resistance can be provided.
Drawings
Fig. 1 is a schematic cross-sectional view of a release sheet according to an embodiment of the present invention.
Description of the symbols
1 Release sheet
10 base material
11 peeling layer
Detailed Description
In the present specification, "solid component" refers to a component other than the solvent among components contained in the release agent composition.
In the present specification, the property of holding an object obtained by laminating release sheets until the release sheet is peeled off from the object is also referred to as "anti-peeling property".
In the present specification, the lower limit and the upper limit recited in stages for a preferable numerical range (for example, a range of contents) may be independently combined. For example, according to the description of "preferably 10 or more, more preferably 30 or more, further preferably 40 or more, and preferably 90 or less, more preferably 80 or less, and further preferably 70 or less", as the preferable range, a range in which the lower limit value and the upper limit value are independently selected, such as "10 or more and 70 or less", "30 or more and 70 or less", and "40 or more and 80 or less", can be selected. In addition, according to the same description, a range in which one of the lower limit value and the upper limit value is limited, for example, "40 or more" or "70 or less" may be individually selected. The preferable ranges that can be selected according to the description of "preferably 10 or more and 90 or less, more preferably 30 or more and 80 or less, further preferably 40 or more and 70 or less", "preferably 10 to 90, more preferably 30 to 80, further preferably 40 to 70" are also the same. In the present specification, in the description of the numerical range, for example, the description of "10 to 90" is the same as the meaning of "10 or more and 90 or less".
[ Release sheet ]
The release sheet of the present invention has a release layer and a substrate.
Fig. 1 is a schematic cross-sectional view showing a release sheet according to an embodiment of the present invention. The release sheet 1 has a substrate 10 and a release layer 11 provided on the substrate 10. The release layer 11 is a cured product of a release agent composition containing an acrylic resin (a), a specific amount of an amino resin (B), and a specific amount of a polyolefin (C) having a crosslinkable functional group.
In one embodiment of the present invention, the release sheet may have release layers (not shown) on both surfaces of the substrate 10. At this time, at least one of the plurality of release layers may be the release layer 11 as long as the effects of the present invention are not impaired, and in the case where a plurality of release layers 11 are present, the compositions of the release agent compositions forming the respective release layers 11 may be the same or different from each other.
In each of the above embodiments, the substrate 10 and the release layer 11 may be formed only, and another layer such as an easy-adhesion layer and an antistatic layer, which are not shown, may be provided between the substrate 10 and the release layer 11.
Hereinafter, the release layer and the substrate constituting the release sheet of the present invention will be described.
< Release layer >
The release sheet of the present invention has a release layer which is a cured product that can be formed from a release agent composition containing an acrylic resin (a), an amino resin (B), and a polyolefin (C) having a crosslinkable functional group, wherein the content of the component (B) is 15 mass% or more and 65 mass% or less in 100 mass% of the total content of the component (a), the component (B), and the component (C), and the content of the component (C) is 55 mass% or less in 100 mass% of the total content of the component (a), the component (B), and the component (C).
Hereinafter, a release agent composition as a material for forming a release layer will be described.
In the following description, the "content of each component in the release agent composition" may be regarded as "content of each component in the release layer formed from the release agent composition". The content may be a value calculated from the amount of each component added.
In the present specification, the contents of the respective components, the total contents, and the ratios of the respective components are all values converted into solid contents.
(stripper composition)
The release agent composition comprises an acrylic resin (A) (hereinafter also referred to as "component (A)"), an amino resin (B) (hereinafter also referred to as "component (B)") and a polyolefin (C) having a crosslinkable functional group (hereinafter also referred to as "component (C)"), wherein the content of the component (B) is 15 to 65 mass% in 100 mass% of the total content of the component (A), the component (B) and the component (C), and the content of the component (C) is 55 mass% or less in 100 mass% of the total content of the component (A), the component (B) and the component (C).
The present inventors have made various studies on the formulation of a release layer using a release agent composition other than a silicone-based release agent composition in order to find a formulation capable of solving the above problems. As a result, it was found that a release layer formulation using a release agent composition satisfying the above conditions is an effective formulation, and the present invention was completed.
Hereinafter, each component contained in the release agent composition will be described.
[ component (A): acrylic resin ]
The release agent composition contains an acrylic resin as the component (a). The reason for this is not clear, but by adding the component (a) to the above-mentioned release agent composition, a release layer having a release force in a range that is difficult to obtain only by a combination of the components (B) and (C) described later can be formed.
Examples of the acrylic resin include: a polymer containing a structural unit derived from an alkyl (meth) acrylate having a linear or branched alkyl group, a polymer containing a structural unit derived from a (meth) acrylate having a cyclic structure, or the like.
In this specification, "(meth) acrylate" is used as a term meaning either or both of "acrylate" or "methacrylate". Likewise, "(meth) acrylic acid" is used as a term to mean either or both of "acrylic acid" or "methacrylic acid".
The acrylic resin is preferably a polymer having a structural unit (a1) derived from an alkyl (meth) acrylate (a1 ') (hereinafter also referred to as "monomer (a 1')"), and more preferably a copolymer having a structural unit (a1) and a structural unit (a2) derived from a functional group-containing monomer (a2 ') (hereinafter also referred to as "monomer (a 2')").
The number of carbon atoms of the alkyl group of the monomer (a 1') is preferably 1 to 3.
The alkyl group of the monomer (a 1') may be a straight-chain alkyl group or a branched-chain alkyl group.
Examples of the monomer (a 1') include methyl (meth) acrylate, ethyl (meth) acrylate, and propyl (meth) acrylate.
These monomers (a 1') may be used alone or in combination of two or more.
Examples of the functional group of the monomer (a 2') include a hydroxyl group, a carboxyl group, an amino group, and an epoxy group. That is, examples of the monomer (a 2') include a hydroxyl group-containing monomer, a carboxyl group-containing monomer, an amino group-containing monomer, and an epoxy group-containing monomer.
When these monomers (a 2') are used, they may be used alone or two or more of them may be used in combination.
The monomer (a 2') is preferably a hydroxyl group-containing monomer and a carboxyl group-containing monomer, and more preferably a hydroxyl group-containing monomer.
Examples of the hydroxyl group-containing monomer include hydroxyalkyl (meth) acrylates such as hydroxymethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, 3-hydroxybutyl (meth) acrylate, and 4-hydroxybutyl (meth) acrylate; unsaturated alcohols such as vinyl alcohol and allyl alcohol.
Examples of the carboxyl group-containing monomer include ethylenically unsaturated monocarboxylic acids such as (meth) acrylic acid and crotonic acid; ethylenically unsaturated dicarboxylic acids such as fumaric acid, itaconic acid, maleic acid, and citraconic acid, and anhydrides thereof; succinic acid (2-acryloyloxy) ethyl ester, 2-carboxyethyl (meth) acrylate, and the like.
Examples of the amino group-containing monomer include aminoethyl (meth) acrylate, ethylaminoethyl (meth) acrylate, aminopropyl (meth) acrylate, ethylaminopropyl (meth) acrylate, and n-butylaminoethyl (meth) acrylate.
Examples of the epoxy group-containing monomer include glycidyl (meth) acrylate.
The resin may be a copolymer further having a structural unit (a3) derived from a monomer (a1 ') and a monomer (a3 ') other than the monomer (a2 ').
Examples of the monomer (a 3') include halogenated olefins such as vinyl chloride and vinylidene chloride; (meth) acrylates having a cyclic structure such as cyclohexyl (meth) acrylate, benzyl (meth) acrylate, phenoxyethyl (meth) acrylate, isobornyl (meth) acrylate, adamantyl (meth) acrylate, dicyclopentenyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate, and imide (meth) acrylate; styrene, α -methylstyrene, vinyltoluene, vinyl formate, vinyl acetate, acrylonitrile, (meth) acrylamide, (meth) acrylonitrile, (meth) acryloylmorpholine, N-vinylpyrrolidone and the like.
These monomers (a 3') may be used alone or in combination of two or more.
In the acrylic resin, the content of each of the structural units (a1), (a2), and (a3) in the entire structural units (100 mass%) of the acrylic resin can be adjusted by adjusting the amount of each of the monomers (a1 '), (a2 '), and (a3 '). For example, it is preferable to appropriately adjust the respective amounts of the monomers (a1 '), (a2 ') and (a3 ') so as to satisfy a preferable range of glass transition temperature (Tg) and/or a preferable range of hydroxyl value, which will be described later.
The glass transition temperature (Tg) of the component (a) is preferably 10 ℃ or higher, more preferably 15 ℃ or higher, and even more preferably 20 ℃ or higher, from the viewpoint of improving the blocking resistance of the obtained release sheet. The upper limit of the glass transition temperature (Tg) is not particularly limited as long as the effect of the present invention is not impaired, and is preferably 150 ℃. The glass transition temperature (Tg) can be measured, for example, by the method described in the examples below.
For example, in the case where an acrylic resin having a desired glass transition temperature (Tg) is desired, a monomer having a higher glass transition temperature (Tg) than the desired glass transition temperature (Tg) of a homopolymer obtained when homopolymerization is performed and a monomer having a lower glass transition temperature (Tg) than the desired glass transition temperature (Tg) of a homopolymer obtained when homopolymerization is performed may be selected. Therefore, in order to obtain a copolymer having a desired glass transition temperature (Tg), an acrylic resin having a desired glass transition temperature (Tg) can be obtained by appropriately adjusting the amount of each monomer to be blended, with reference to the glass transition temperature (Tg) of a homopolymer obtained by homopolymerizing each monomer.
In addition, the hydroxyl value of the component (A) is preferably 5mgKOH/g or more, more preferably 8mgKOH/g or more, and still more preferably 10mgKOH/g or more, from the viewpoint of improving the solvent resistance of the resulting release sheet. The upper limit of the hydroxyl value is not particularly limited as long as the effects of the present invention are not impaired, and is, for example, preferably 200mgKOH/g, more preferably 150mgKOH/g, and still more preferably 100 mgKOH/g. The value of the hydroxyl value can be measured by the method described in JIS K0070-1992, for example.
When an acrylic resin having a desired hydroxyl value is to be obtained, for example, an acrylic resin having a desired hydroxyl value can be obtained by appropriately adjusting the amount of the hydroxyl group-containing monomer.
The weight average molecular weight (Mw) of the component (A) is preferably 5000 to 100000, more preferably 8000 to 80000, and further preferably 10000 to 50000. The weight average molecular weight (Mw) is a value in terms of polystyrene measured by Gel Permeation Chromatography (GPC).
The component (A) may be used alone or in combination of two or more.
In one embodiment of the present invention, from the viewpoint of improving the peelability of the peeling layer, the content of the component (a) is preferably 15% by mass or more, more preferably 20% by mass or more, and further preferably 25% by mass or more, out of 100% by mass of the total content of the component (a), the component (B), and the component (C). From the viewpoint of solubility in a diluent solvent when a coating film is formed and the viewpoint of exhibiting a peeling force excellent in the balance between easy peeling property and peeling resistance of the peeling layer, the content of the component (a) is preferably 80% by mass or less, more preferably 75% by mass, and still more preferably 65% by mass or less, of the total content 100% by mass of the components (a), (B), and (C).
[ component (B): amino resin ]
The release agent composition contains an amino resin as the component (B) in an amount of 15 to 65 mass% based on 100 mass% of the total content of the component (A), the component (B) and the component (C).
In the present specification, the term "amino resin" refers to a general term for compounds obtained by the reaction of a compound having an amino group such as melamine, urea, aniline, guanamine, and the like with an aldehyde such as formaldehyde, acetaldehyde, and the like.
Examples of the amino resin include: melamine resins, urea resins, aniline resins, guanamine resins, and the like. Among them, a melamine resin is preferable from the viewpoint of improving the curability of the release agent composition and the solvent resistance of the release layer.
The melamine resin is preferably at least one selected from the group consisting of a methylolated melamine resin, an iminomethylolated melamine resin, a methylated melamine resin, an ethylated melamine resin, a propylated melamine resin, a butylated melamine resin, a hexylated melamine resin, and an octylated melamine resin, and more preferably at least one selected from the group consisting of a methylolated melamine resin, an iminomethylolated melamine resin, and a methylated melamine resin. Among these, methylated melamine resins are more preferable from the viewpoint of low-temperature curability of the releasable composition.
The component (B) may be used alone or in combination of two or more.
In the case where the content of the component (B) is more than 65 mass% in 100 mass% of the total content of the component (a), the component (B) and the component (C), the resulting release sheet may have poor curl resistance due to a condensation reaction of the amino resin. On the other hand, when the content of the component (B) is less than 15% by mass in 100% by mass of the total content of the component (a), the component (B) and the component (C), the solvent resistance of the obtained release sheet is deteriorated due to the condensation reaction of the amino resin.
Therefore, from the viewpoint of satisfying both good curl resistance and good solvent resistance, the content of the component (B) is preferably 16% by mass or more, more preferably 18% by mass or more, further preferably 20% by mass or more, and preferably 60% by mass or less, more preferably 55% by mass or less, further preferably 45% by mass or less, of the total content 100% by mass of the components (a), (B) and (C).
[ component (C): polyolefin (C) having crosslinkable functional group(s) ]
The release agent composition contains a polyolefin having a crosslinkable functional group as the component (C) in an amount of 55% by mass or less based on 100% by mass of the total content of the component (A), the component (B) and the component (C).
In the present specification, the term "polyolefin" is used to include a polymer obtained by polymerizing a diene such as polybutadiene or isoprene as a monomer unit.
In the present specification, the "crosslinkable functional group" means a functional group that reacts with at least the component (B) as a crosslinking agent.
Examples of the polyolefin include polyethylene; polypropylene; copolymers such as ethylene- α -olefin copolymers obtained by polymerizing at least two olefins selected from ethylene, propylene and α -olefins having 4 to 20 carbon atoms; polybutadiene; a polyisoprene; and the like. Among them, polybutadiene or polyisoprene is preferable from the viewpoint of obtaining a release layer having good releasability.
Further, the value obtained as the peeling force with respect to the object laminated on the peeling layer varies depending on the application of the peeling sheet, and for example, when a higher peeling force is required within the range of the peeling force of the peeling layer obtained by the combination of the components (a) to (C), polybutadiene is more preferable, and when a lower peeling force is required, polyisoprene is preferable.
Examples of the crosslinkable functional group of the component (C) include a hydroxyl group, a carboxyl group, an epoxy group, an amino group, an isocyanate group, a thiol group, and a vinyl group.
Among them, the crosslinkable functional group is preferably a hydroxyl group from the viewpoint of better reactivity with the component (B).
The component (C) may have at least one crosslinkable functional group, and preferably has two or more crosslinkable functional groups. When the component (C) has two or more crosslinkable functional groups, these functional groups may be the same or different from each other, and are preferably the same.
The position of the crosslinkable functional group of the component (C) is not particularly limited as long as the crosslinkable functional group can react with the component (B).
In one embodiment of the present invention, it is preferable that the crosslinkable functional group is provided at least one end of the molecular chain constituting the polymer skeleton of the component (C), and from the viewpoint of extending the distance between the crosslinking sites to form a release layer having more excellent releasability, it is more preferable that the crosslinkable functional group is provided at both ends of the molecular chain constituting the polymer skeleton of the component (C), and it is further preferable that the crosslinkable functional group is provided only at both ends of the main chain constituting the polymer skeleton of the component (C).
In addition, the component (C) is preferably a hydrogenated polyolefin in view of the stability of the peeling force with time. The degree of hydrogenation of the component (C) may be partial hydrogenation or complete hydrogenation, and from the viewpoint of improving the chemical stability of the peeling force of the peeling layer, partial hydrides having a low residual ratio of unsaturated bonds such as vinyl groups are preferable, and complete hydrides are more preferable.
Therefore, from the same viewpoint, the bromine number of the component (C) is preferably low. The lower the bromine number, the lower the residual ratio of unsaturated bonds including unsaturated bonds in the component (C) and the less susceptible to chemical changes such as oxidation, and therefore the more stable the peeling force of the peeling layer with time.
For example, in one embodiment of the present invention, the bromine number of the component (C) is preferably 100g/100g or less, more preferably 20g/100g or less, still more preferably 10g/100g or less, and still more preferably 8g/100g or less.
The bromine number is a value measured in accordance with JIS K2605-.
The number average molecular weight (Mn) of the component (C) is preferably 1000 to 30000, more preferably 1000 to 20000, still more preferably 1000 to 10000, and still more preferably 1000 to 5000.
In the present specification, the number average molecular weight (Mn) is a value in terms of standard polystyrene measured by a Gel Permeation Chromatography (GPC) method, and can be measured, for example, by the method described in the examples described later.
The component (C) may be used alone or in combination of two or more.
When the above-mentioned release agent composition contains more than 55 mass% of the component (C) in 100 mass% of the total content of the component (a), the component (B) and the component (C), the obtained release sheet may have poor blocking resistance. Therefore, from the viewpoint of improving the blocking resistance, the content of the component (C) is preferably 45 mass% or less, more preferably 35 mass% or less, and still more preferably 25 mass% or less, of the total content 100 mass% of the components (a), (B), and (C). From the viewpoint of obtaining good peelability as a peeling layer, the content of the component (C) is preferably 5 mass% or more, more preferably 10 mass% or more, and still more preferably 15 mass% or more, out of 100 mass% of the total content of the component (a), the component (B), and the component (C).
In one embodiment of the present invention, the total content of the component (a), the component (B), and the component (C) in the release agent composition is preferably 70% by mass or more, more preferably 80% by mass or more, further preferably 90% by mass or more, and further preferably 95% by mass or more, based on the total amount of the release agent composition (100% by mass in solid content).
In one embodiment of the present invention, the content ratio (a/B) of the component (a) to the component (B) is preferably 15/85 to 85/15 in terms of a mass ratio, from the viewpoint of obtaining a good peeling force within a range not impairing the effects of the present invention. In addition, for example, in the case of using a polyolefin containing polybutadiene as the component (C), from the viewpoint of more easily obtaining the effect of the present invention, it is more preferably 40/60 to 80/20, still more preferably 55/45 to 80/20, and still more preferably 65/35 to 78/22.
In one embodiment of the present invention, the content ratio (a/C) of the component (a) to the component (C) is preferably 36/64 to 96/4 in terms of a mass ratio. In addition, for example, in the case of using a polyolefin containing polybutadiene as the component (C), from the viewpoint of more easily obtaining the effect of the present invention, it is more preferably 40/60 to 95/5, still more preferably 60/40 to 95/5, and still more preferably 70/30 to 80/20.
[ acid catalyst ]
In one embodiment of the present invention, the stripping agent composition may further include an acid catalyst. By using an acid catalyst, the crosslinking reaction of the component (a) and the component (B) and/or the crosslinking reaction of the component (a) and the component (C), and the crosslinking reactivity of the component (B) and the component (C) can be improved, and the stability with time of the peeling force of the peeling layer can be easily further improved.
The acid catalyst is not particularly limited, and for example, organic acid catalysts such as p-toluenesulfonic acid, methanesulfonic acid, and alkyl phosphate are suitable.
The acid catalysts may be used alone or in combination of two or more.
The amount of the acid catalyst used is preferably 0.1 to 15 parts by mass, more preferably 0.5 to 10 parts by mass, and still more preferably 1 to 5 parts by mass, based on 100 parts by mass of the total amount of the components (A), (B), and (C).
[ other additives ]
In one embodiment of the present invention, the release agent composition may contain, as necessary, the components (a), (B), and (C) and other additives other than the acid catalyst, within a range not to impair the effects of the present invention.
Examples of such additives include various additives such as antioxidants, ultraviolet absorbers, inorganic or organic fillers, antistatic agents, surfactants, photoinitiators, and light stabilizers.
[ organosilicon Compounds ]
In one embodiment of the present invention, the release agent composition preferably contains substantially no organosilicon compound.
When a release sheet having a release layer formed from a release agent composition containing an organic silicon compound is used, for example, the organic silicon compound may be transferred to a pressure-sensitive adhesive layer to be stuck, and the original performance of the pressure-sensitive adhesive layer may be impaired. Alternatively, this is because the organic silicon compound is transferred from the release layer to a substance (for example, a manufacturing facility) contacting the release sheet or an object to which the pressure-sensitive adhesive layer is attached directly or via the pressure-sensitive adhesive layer, and this may cause corrosion or malfunction of the object.
From such a viewpoint, in one embodiment of the present invention, the content of the organosilicon compound in the stripper composition is preferably less than 5.0 mass%, more preferably less than 2.0 mass%, even more preferably less than 1.0 mass%, even more preferably less than 0.1 mass%, and even more preferably less than 0.01 mass%, based on the total amount of the stripper composition (solid content 100 mass%).
[ isocyanate Compound ]
In one embodiment of the present invention, the release agent composition preferably contains substantially no isocyanate compound from the viewpoint of solvent resistance.
In one embodiment of the present invention, the content of the isocyanate compound in the release agent composition is preferably less than 1.0% by mass, more preferably less than 0.1% by mass, even more preferably less than 0.01% by mass, and even more preferably less than 0.001% by mass, based on the total amount of the release agent composition (100% by mass of the solid content).
[ Diluent solvent ]
In one embodiment of the present invention, the stripping agent composition may be prepared in the form of a solution by adding a diluting solvent to each of the above components, from the viewpoint of improving coatability to a substrate.
The diluting solvent may be selected from organic solvents having good solubility of the above components (A), (B) and (C).
Examples of such organic solvents include toluene, xylene, heptane, octane, methanol, ethanol, isopropanol, isobutanol, n-butanol, ethyl acetate, acetone, methyl ethyl ketone, cyclohexanone, and tetrahydrofuran.
These solvents may be used alone, or two or more of them may be used in combination.
The organic solvent used as the diluting solvent may be the organic solvent used in the synthesis of the above-mentioned components (a), (B), and (C) as it is, or may be one or more organic solvents other than the organic solvent used in the synthesis of the above-mentioned components (a), (B), and (C) so that the release agent composition can be uniformly applied.
The amount of the diluting solvent may be appropriately selected so as to achieve an amount having a moderate viscosity when the release agent composition is applied.
Specifically, the concentration of the solid content in the solution of the stripping agent composition may be adjusted to a range of preferably 0.1 to 15 mass%, more preferably 0.2 to 10 mass%, and still more preferably 0.5 to 5 mass%.
The thickness of the release layer is not particularly limited, but is preferably 25 to 1000nm, more preferably 50 to 500 nm. When the thickness of the release layer is 25nm or more, variation in the release force due to variation in the amount of coating can be suppressed. When the thickness of the release layer is 1000nm or less, the curability of the coating film of the release agent composition can be improved.
The thickness of the release layer can be measured, for example, by the method described in the examples described later.
< substrate >
Examples of the base material used for the release sheet of the present invention include paper materials such as fully-pulped paper, clay-coated paper, cast-coated paper, and kraft paper, laminated paper obtained by laminating a thermoplastic resin such as a polyethylene resin on these paper materials, paper material sheets such as synthetic paper, and polyolefin resins such as polyethylene resins and polypropylene resins; polyester resins such as polybutylene terephthalate resins, polyethylene terephthalate resins, and polyethylene naphthalate resins; a polyetherimide resin; an acetate resin; a polystyrene resin; sheets of synthetic resins such as vinyl chloride resins, and the like.
The substrate may be a single layer, or may be a multilayer of 2 or more layers of the same kind or different kinds.
The thickness of the base material is not particularly limited, but is preferably 10 to 300. mu.m, more preferably 20 to 200. mu.m. When the thickness of the substrate is 10 to 300 μm, for example, rigidity and strength suitable for processing such as printing, cutting, and sticking can be imparted to an adhesive sheet or the like using a release sheet.
In the case where a synthetic resin is used as the substrate, the surface of the substrate on which the release layer is provided may be subjected to surface treatment by a method such as oxidation or roughening, as required, in order to improve adhesion between the substrate and the release layer.
Examples of the oxidation method include corona discharge surface treatment, chromic acid surface treatment (wet method), flame surface treatment, hot air surface treatment, ozone/ultraviolet irradiation surface treatment, and the like. Examples of the method of forming the concavity and convexity include a sand blast method and a solvent treatment method. These surface treatment methods may be appropriately selected depending on the type of the base material, and in general, a corona discharge surface treatment method is preferably used from the viewpoint of effects and workability. In addition, a primer treatment may be performed.
The release sheet of the present invention may be formed with irregularities on the surface thereof by embossing the surface on the release layer side.
In addition, the release sheet of the present invention may further include another layer such as an easy-adhesion layer or an antistatic layer between the base material and the release layer. By providing the release sheet with an easily adhesive layer, the release layer can be effectively prevented from falling off the release sheet.
The easy adhesion layer is usually formed by applying an easy adhesion coating agent to the release layer side surface of the substrate. Examples of the easy-adhesion coating agent include polyester resins, urethane resins, acrylic resins, melamine resins, and polyester resins
An oxazoline-based resin, a carbodiimide group-containing resin, an epoxy group-containing resin, an isocyanate-containing resin, and a copolymer thereof, and a coating agent containing a natural rubber and a synthetic rubber as a main component.
These resins may be used singly or in combination of two different resins. In order to improve the coating property of the easy-adhesion coating agent on the surface of the base material and the adhesion between the base material and the easy-adhesion layer, the surface of the base material to be coated with the easy-adhesion coating agent may be subjected to a surface treatment such as a chemical treatment or an electric discharge treatment.
The thickness of the easy adhesion layer is preferably 50nm to 5 μm, and more preferably 100nm to 1 μm. By setting the thickness to 50nm or more, the effect of the easy adhesion layer can be obtained well. When the thickness is 5 μm or less, the surface of the easy-adhesion layer opposite to the substrate has good sliding properties, and the easy-adhesion layer is coated with the release agent composition in good workability.
In general, a preferable value of the peeling force of the peeling sheet differs depending on the application to be used and the type of the object to be laminated, and a lower peeling force is preferable in some cases for smooth peeling operation at the time of peeling, and a higher peeling force is preferable in some cases for improved peeling resistance.
In one embodiment of the present invention, the release sheet preferably has a release force of 500 to 4000mN/20mm, more preferably 1000 to 3950mN/20mm, and further preferably 2500 to 3900mN/20mm or more.
The value of the peeling force is a value measured by a method described in examples described later.
[ use of Release sheet ]
The release sheet of the present invention can be used as a protective sheet for various pressure-sensitive adhesive bodies such as pressure-sensitive adhesive sheets, and for example, can be used by being stuck to a pressure-sensitive adhesive layer-side surface of a pressure-sensitive adhesive sheet including a substrate and a pressure-sensitive adhesive layer provided on one surface of the substrate. Further, the resin composition can be used as a process film for producing various resin sheets, ceramic green sheets, synthetic leathers, various composite materials, and the like. In the case of use as a process film, the process film is used in a step of peeling various sheet materials from a release sheet, the sheet materials being formed by casting a resin, a ceramic slurry, or the like and applying the surface of the release sheet on the release layer side. The release sheet of the present invention is particularly preferably used for electronic device applications because the release layer is formed from a non-silicone release agent composition. For example, the release sheet can be suitably used as a release sheet for an adhesive sheet for temporarily fixing and marking the contents of components when electronic components are assembled in the production process of electronic components such as relays, various switches, connectors, motors, and hard disks.
[ method for producing Release sheet ]
The release sheet of the present invention can be produced, for example, as follows: the release agent composition is applied to at least one surface of a substrate, and heat treatment is performed to react the components (a) to (C) to form a cured product as a release layer.
As described above, the release agent composition may be in the form of a solution diluted with a diluting solvent.
The heat treatment temperature is preferably 100 to 170 ℃, and more preferably 130 to 160 ℃. The heat treatment time is not particularly limited, but is preferably 30 seconds to 5 minutes.
Examples of the coating method of the release agent composition include a gravure coating method, a bar coating method, a spray coating method, a spin coating method, an air knife coating method, a roll coating method, a blade coating method, a gate roll coating method, and a die coating method.
The coating thickness of the release agent composition is preferably adjusted so that the thickness of the obtained release layer is within the above range.
Examples
The present invention will be specifically described with reference to the following examples, but the present invention is not limited to the following examples.
The physical property values in the following examples and comparative examples are values measured by the following methods.
[ thickness of the peeling layer ]
The thickness of the release layer was measured using an ellipsometer (product name: ellipsometer 2000U, manufactured by j.a. woollam Japan).
[ glass transition temperature (Tg) ]
The glass transition temperature (Tg) of the acrylic resin was measured by a differential scanning calorimeter (TA Instruments Japan, product name "DSC Q2000") from 30 ℃ to 200 ℃ at a temperature rising rate of 10 ℃ per minute.
[ bromine number ]
The values determined in accordance with JIS K2605-.
[ weight average molecular weight (Mw), number average molecular weight (Mn) ]
The weight average molecular weight (Mw) of the acrylic resin and the number average molecular weight (Mn) of the polyolefin having a crosslinkable functional group were measured under the following conditions using a Gel Permeation Chromatography (GPC) instrument (product name "HLC-8320" available from Tosoh corporation), and values in terms of number average molecular weight of standard polystyrene were used.
(measurement conditions)
Measurement of the sample: tetrahydrofuran solution of sample concentration 1 mass%
A chromatographic column: two TSK gel Super HM-H and one TSK gel Super H2000 (both manufactured by Tosoh Corp.) are connected in sequence from upstream
Column temperature: 40 deg.C
Eluting solvent: tetrahydrofuran (THF)
Flow rate: 0.60 mL/min
A detector: differential refractometer (RI detector)
[ examples and comparative examples ]
The release sheets of examples 1 to 9 and comparative examples 1 to 5 were produced by the following procedure. In the following description, unless otherwise specified, the value of "part by mass" is a value calculated as a solid content.
< example 1>
To an acrylic resin (product name "ACRYDIC (registered trademark) a-817", glass transition temperature (Tg): 95 ℃, hydroxyl value ═ 60mgKOH/g, and weight average molecular weight ═ 20000) as the component (a), 40 parts by mass of a methylated melamine resin (product name "CYMEL (registered trademark)", grade "303 LF") as the component (B) and 20 parts by mass of both-terminal hydroxyl-modified hydrogenated polybutadiene (product name "NISSO-PB (registered trademark)", grade "GI-2000", number average molecular weight ═ 2000, and bromine value ═ 8g/100g) as the component (C) were added, and 3.0 parts by mass of p-toluenesulfonic acid as an acid catalyst was further added to 100 parts by mass of the components (a), (B), and (C) in total, a stripper composition was prepared.
The obtained release agent composition was diluted to a solid content concentration of 4.3 parts by mass using a mixed solvent of toluene and methyl ethyl ketone (toluene: methyl ethyl ketone: 6: 4 (mass ratio)), to obtain a coating liquid of the release agent composition.
The coating liquid of the obtained release agent composition was applied to one surface of a polyethylene terephthalate film (product name "DIAFOIL (registered trademark)" manufactured by Mitsubishi chemical corporation, grade "T-100") having a thickness of 50 μm using a Meyer bar to form a coating film. The coating film was dried at 150 ℃ for 1 minute and cured to form a release layer having a thickness of 200nm, thereby obtaining a release sheet.
< examples 2, 3, 8 and 9>
Each release sheet was obtained in the same manner as in example 1, except that the loading amounts of the components (a), (B), and (C) were changed to the amounts shown in table 1 below.
< example 4>
A release sheet was obtained in the same manner as in example 1, except that the acrylic resin of the component (a) was changed to an acrylic resin (product name "OLESTER" (registered trademark), grade "Q-828", glass transition temperature (Tg) of 135 ℃, hydroxyl value of 25mgKOH/g, and weight average molecular weight of 16500) manufactured by mitsui chemical co.
< example 5>
A release sheet was obtained in the same manner as in example 1, except that the acrylic resin of the component (a) was changed to an acrylic resin manufactured by DIC corporation (product name "ACRYDIC (registered trademark) a-811-BE", glass transition temperature (Tg) of 20 ℃, hydroxyl value of 35mgKOH/g, and weight average molecular weight of 25000).
< example 6>
A release sheet was obtained in the same manner as in example 1, except that the acrylic resin of the component (a) was changed to an acrylic resin manufactured by DIC corporation (product name "ACRYDIC (registered trademark) WMU-504", glass transition temperature (Tg) of 60 ℃, hydroxyl value of 95mgKOH/g, and weight average molecular weight of 17000).
< example 7>
A release sheet was obtained in the same manner as in example 1, except that the component (C) was changed to hydrogenated polyisoprene modified with hydroxyl groups at both ends (product name "EPOL (registered trademark) WMU-504", manufactured by shinko corporation), number average molecular weight was 2500, and bromine number was 5g/100 g).
< comparative examples 1 to 3>
Each release sheet was obtained in the same manner as in example 1, except that the component (a) was not used and the loading of the components (B) and (C) was changed to the amounts shown in table 1 below.
< comparative examples 4 and 5>
A release sheet was obtained in the same manner as in example 1, except that the loading amounts of the components (a), (B), and (C) were changed to the amounts shown in table 1 below.
The following measurements and evaluations were carried out on the release sheets of examples 1 to 9 and comparative examples 1 to 5.
[ measurement of peeling force ]
A polyester adhesive tape (product No.31B, manufactured by Rido electric Co., Ltd.) having a width of 20mm was adhered to the release layer of the release sheet obtained in each example and each comparative example using a 2kg roll to prepare a sample for measuring a peeling force.
After 30 minutes of sticking, the obtained sample was fixed to a universal tensile tester (product name "Autograph (registered trademark)", model "AGS-20 NX", manufactured by shimadzu corporation) and the adhesive tape was peeled from the release layer at a speed of 0.3 m/min in a direction of 180 ° in accordance with JIS K6854:1999, to measure the peel force (mN/20mm) of the release sheet. The results are shown in Table 1.
[ evaluation of curl resistance ]
In each of examples and comparative examples, a sample for evaluation was prepared by coating a release layer to a thickness of 1 μm.
From the obtained evaluation sample, a test piece having a length of 10 cm. times.10 cm was cut out and stored at 120 ℃ for 24 hours. After 24 hours of storage, the test piece was placed on a horizontal table, and the four corners of the test piece were evaluated for warpage according to the following criteria. The results are shown in Table 1.
A: the average value of the distances from the bench to the four corners is less than 3 mm.
B: the average value of the distances from the table to the four corners is 3mm or more and less than 5 mm.
C: the average value of the distances from the table to the four corners is 5mm or more.
[ evaluation of blocking resistance ]
From the release sheets obtained in each example and each comparative example, test pieces of 10cm in length by 10cm in width were cut out. 10 test pieces were stacked and pressed at 40 ℃ under 2MPa for 24 hours using a hot press. After the pressing, the state of blocking was visually observed and evaluated according to the following criteria. The results are shown in Table 1.
A: the appearance of the laminated sheet after pressing maintained the same haze as before pressing, and no blocking was seen.
B: the appearance of the laminated sheet after pressing had a partial haze disappearance showing a slight blocking of this part.
C: the appearance of the laminated sheet after pressing was lost in haze over the entire surface, and blocking was exhibited.
[ evaluation of solvent resistance ]
A nonwoven fabric impregnated with methyl ethyl ketone (product name "BEMCOT (registered trademark)" manufactured by asahi chemicals corporation) was placed on the release layer of the release sheet obtained in each example and each comparative example, and a load of 100g was applied from above, and the sheet was wiped 5 times. The surface of the release layer was visually observed and evaluated according to the following criteria. The results are shown in Table 1.
A: no change was observed in the surface of the release layer.
B: whitening was observed on the surface of the release layer, but the release layer did not completely peel off.
C: the peeling layer completely peeled off.
[ Table 1]
*1: acrylic resin
*2: methylated melamine resin (CYMEL 303LF)
*3: polyolefin having crosslinkable functional group
*4: the amount of the component (A), (B) and (C) to be blended is 100 parts by mass in total
*5: Bd-H: hydrogenated polybutadiene modified with hydroxyl groups at both ends; EPOL: hydrogenated polyisoprene modified by hydroxyl at both ends
As shown in Table 1, it was confirmed that the release sheet described in comparative examples 1 to 3 having a release layer as a cured product of a release agent composition not containing the component (A), the release sheet described in comparative example 4 having a release layer as a cured product of a release agent composition containing the component (B) in an amount of less than 15% by mass out of 100% by mass of the total content of the component (A), the component (B) and the component (C), and the release sheet described in comparative example 5 having a release layer as a cured product of a release agent composition containing the component (B) in an amount of more than 65% by mass out of 100% by mass of the total content of the component (A), the component (B) and the component (C) have a structure in which the content of the component (B) is 15% by mass or more and 65% by mass or less out of 100% by mass of the total content of the components (A), the component (B) and the component (C), The release sheets of examples 1 to 9, which were release layers of cured products of the release agent composition having a content of the component (C) of 55 mass% or less based on 100 mass% of the total content of the component (a), the component (B) and the component (C), were able to adjust the release force to a range that has been difficult to obtain in the past, and were good in any of the properties of curl resistance, blocking resistance and solvent resistance.
In addition, it was confirmed that, in the release sheets described in comparative examples 1 to 3, even when the blending ratio of the components (B) and (C) was changed, the release force could be adjusted only within a certain range of the release force.
In addition, it was confirmed that the release sheets of comparative examples 1 and 5 in which the content of the component (B) was more than 65 mass% in 100 mass% of the total content of the component (a), the component (B) and the component (C) were poor in curl resistance.
On the other hand, it was confirmed that the solvent resistance of the release sheet of comparative example 4 was poor, in which the content of component (B) was less than 15 mass% in 100 mass% of the total content of component (a), component (B) and component (C).
Further, it was confirmed that the release sheets of comparative examples 2 and 3, in which the content of component (C) was more than 55 mass% in 100 mass% of the total content of component (a), component (B) and component (C), had poor blocking resistance.
Industrial applicability
The release sheet of the present invention is useful as a protective sheet for various adherends such as an adhesive sheet, and also as a process film for producing various resin sheets, ceramic green sheets, synthetic leathers, and various composite materials. Further, since the release layer of the release sheet of the present invention is formed of the non-silicone release agent composition, it can be suitably used as a release sheet for various electronic devices, or as a release sheet for an adhesive sheet for temporarily fixing or marking the contents of components when electronic components are assembled in the production process of electronic components.
Claims (7)
1. A release sheet having a release layer and a base material, wherein,
the release layer is a cured product of a release agent composition comprising an acrylic resin (A), an amino resin (B) and a polyolefin (C) having a crosslinkable functional group,
the content of the component (B) is 15 to 65 mass% based on 100 mass% of the total content of the component (A), the component (B) and the component (C),
the content of the component (C) is 55% by mass or less based on 100% by mass of the total content of the component (A), the component (B) and the component (C).
2. The release sheet according to claim 1, wherein the component (a) has a glass transition temperature (Tg) of 10 ℃ or higher.
3. The release sheet according to claim 1 or 2, wherein the component (B) is a melamine resin.
4. The release sheet according to any one of claims 1 to 3, wherein the crosslinkable functional group of the component (C) is a hydroxyl group.
5. The release sheet according to any one of claims 1 to 4, wherein the component (C) is polybutadiene having a crosslinkable functional group or polyisoprene having a crosslinkable functional group.
6. The release sheet according to any one of claims 1 to 5, wherein the component (C) is a hydrogenated polyolefin having a crosslinkable functional group.
7. The release sheet according to any one of claims 1 to 6, which has a release force of 500 to 4000mN/20mm when peeled from the adhesive layer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019059116 | 2019-03-26 | ||
| JP2019-059116 | 2019-03-26 | ||
| PCT/JP2020/012202 WO2020196223A1 (en) | 2019-03-26 | 2020-03-19 | Release sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113631374A true CN113631374A (en) | 2021-11-09 |
Family
ID=72610496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080023455.9A Pending CN113631374A (en) | 2019-03-26 | 2020-03-19 | Release sheet |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7522096B2 (en) |
| KR (1) | KR20210145132A (en) |
| CN (1) | CN113631374A (en) |
| TW (1) | TWI837331B (en) |
| WO (1) | WO2020196223A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116082938A (en) * | 2022-12-09 | 2023-05-09 | 江阴通利光电科技有限公司 | Acrylic light release force release agent, release film and preparation method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022202162A1 (en) * | 2021-03-25 | 2022-09-29 | リンテック株式会社 | Release film for use in ceramic green sheet production process |
| JPWO2022209547A1 (en) * | 2021-03-30 | 2022-10-06 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017165818A (en) * | 2016-03-14 | 2017-09-21 | リンテック株式会社 | Release agent composition, release sheet, and adhesive material |
| CN108137978A (en) * | 2015-11-06 | 2018-06-08 | 琳得科株式会社 | Remover combination, stripping film and adherend |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW496881B (en) | 1997-05-13 | 2002-08-01 | Teijin Ltd | Release film |
| EP2280047B1 (en) | 2008-03-31 | 2012-04-25 | Hitachi Kasei Polymer Co., Ltd. | Releasing agent composition and releasing material |
| KR101636537B1 (en) | 2009-11-12 | 2016-07-06 | 삼성전자주식회사 | Image processing apparatus and method for enhancing of depth perception |
| JP6475240B2 (en) * | 2014-06-27 | 2019-03-06 | 富士フイルム株式会社 | Adhesive composition, adhesive sheet, adhesive film, laminate for touch panel, capacitive touch panel |
| US20200291271A1 (en) | 2016-09-16 | 2020-09-17 | Lintec Corporation | Release sheet |
-
2020
- 2020-03-19 KR KR1020217027920A patent/KR20210145132A/en not_active Application Discontinuation
- 2020-03-19 JP JP2021509292A patent/JP7522096B2/en active Active
- 2020-03-19 WO PCT/JP2020/012202 patent/WO2020196223A1/en active Application Filing
- 2020-03-19 CN CN202080023455.9A patent/CN113631374A/en active Pending
- 2020-03-25 TW TW109109935A patent/TWI837331B/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108137978A (en) * | 2015-11-06 | 2018-06-08 | 琳得科株式会社 | Remover combination, stripping film and adherend |
| JP2017165818A (en) * | 2016-03-14 | 2017-09-21 | リンテック株式会社 | Release agent composition, release sheet, and adhesive material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116082938A (en) * | 2022-12-09 | 2023-05-09 | 江阴通利光电科技有限公司 | Acrylic light release force release agent, release film and preparation method |
| CN116082938B (en) * | 2022-12-09 | 2024-04-12 | 江阴通利光电科技有限公司 | Acrylic light release force release agent, release film and preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020196223A1 (en) | 2020-10-01 |
| KR20210145132A (en) | 2021-12-01 |
| JP7522096B2 (en) | 2024-07-24 |
| TW202100698A (en) | 2021-01-01 |
| JPWO2020196223A1 (en) | 2020-10-01 |
| TWI837331B (en) | 2024-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102173316B1 (en) | Adhesive sheet | |
| CN113631374A (en) | Release sheet | |
| KR101848602B1 (en) | Peeling agent composition, peeling sheet, and adhesive body | |
| TWI741191B (en) | Adhesive sheet | |
| JP6838814B2 (en) | Release agent composition, release sheet and adhesive | |
| CN105619979B (en) | The manufacturing method of heat resistance bonding sheet and functional membrane | |
| TWI843788B (en) | Adhesive Sheet | |
| JP7540470B2 (en) | Release layer, molded article with release layer, and release agent | |
| WO2014192827A1 (en) | Adhesive composition, adhesive film, and article processing method | |
| WO2018051953A1 (en) | Release sheet | |
| CN107011834B (en) | Adhesive composition, adhesive member, optical member, and electronic member | |
| CN113631376A (en) | Release sheet | |
| KR102496221B1 (en) | adhesive sheet | |
| JP5226411B2 (en) | Laminated polyester film for skin material and composite molded body with improved tactile sensation using the same | |
| WO2019189057A1 (en) | Release sheet | |
| CN113831867A (en) | Adhesive composition, adhesive member, optical member, and electronic member | |
| JP7010747B2 (en) | Sheet for semiconductor processing | |
| CN113613897A (en) | Release sheet | |
| JP2024100513A (en) | Release sheet | |
| JP2019089946A (en) | Adhesive film | |
| JP2023089432A (en) | Peelable sheet | |
| WO2022249899A1 (en) | Mold release film | |
| JP2019089945A (en) | Adhesive film |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |
|
| RJ01 | Rejection of invention patent application after publication |