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    • 3. 发明申请
    • PRESSURE SENSITIVE ADHESIVES FOR LOW SURFACE ENERGY SUBSTRATES
    • 低表面能基材的压敏粘合剂
    • WO2011075501A2
    • 2011-06-23
    • PCT/US2010/060405
    • 2010-12-15
    • 3M INNOVATIVE PROPERTIES COMPANYTRASER, SteffenD'HAESE, Francois C.
    • TRASER, SteffenD'HAESE, Francois C.
    • C09J133/04C09J9/00C09J11/00C09J7/02
    • C09J133/08C08K5/0025C08K5/29C08K5/3412Y10T428/2878
    • A cured adhesive composition comprising: (a) a copolymer comprising the reaction product of: 65 to 94.5 wt % of a C?8#191 acrylate ester, 0.5 to 5 wt % of a polar cross-linkable monomer, and 5-30 wt % of a non polar monomer, wherein the copolymer has a weight average molecular weight of 400,000 to 2,200,000 grams/mole; (b) 30 to 70 parts of a hydrogenated hydrocarbon tackifier per 100 parts of the copolymer; and (c) 0.01 to 3 parts (solid/solid) of a cross-linking agent per 100 parts of the copolymer wherein the cured adhesive has a peel value greater than 6 N/cm when tested according to FINAT test method No. 2 on a low density polyethylene; and further wherein the cured adhesive has a shear value greater than 2000 minutes when tested according to FINAT test method No. 8 on low density polyethylene. The cured adhesive of this disclosure is found to exhibit excellent adhesion to low surface energy substrates.
    • 固化的粘合剂组合物,其包含:(a)包含以下物质的反应产物的共聚物:65至94.5重量%的C 8 8 191烷基丙烯酸酯,0.5至5重量% 以及5-30重量%的非极性单体,其中所述共聚物的重均分子量为400,000至2,200,000克/摩尔; (b)每100份共聚物30至70份氢化烃增粘剂; 和(c)每100份共聚物中含有0.01至3份(固体/固体)交联剂,其中固化的粘合剂当根据FINAT测试方法No.2测试时,剥离值大于6N / cm 低密度聚乙烯; 并且另外其中当根据FINAT测试方法No.8在低密度聚乙烯上测试时,固化的粘合剂具有大于2000分钟的剪切值。 发现本公开的固化粘合剂对低表面能基材表现出优异的粘合性。