公开(公告)号：US20230034083A1

公开(公告)日：2023-02-02

申请号：US17757639

申请日：2021-01-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lijing Zhang ,  Fan Gao ,  Guoliang Zhang

IPC: C09J7/40 ,  C09J7/38 ,  C09J175/08 ,  C09J11/08 ,  C09J7/10 ,  C08L75/08

Abstract: The present invention relates to a novel polyurethane-based UV-curable composition, comprising a low-crystallinity polyurethane polymer, a multifunctional thiol compound, a multifunctional epoxy resin compound, a photobase generator, and an optional photosensitizer. Adhesive films, adhesive tapes, and bonded members with excellent initial bonding performance, die cutting performance, overlap strength and drop-resistance performance may be obtained by using the polyurethane-based UV-curable composition provided by the present invention.

公开(公告)号：US20150329749A1

公开(公告)日：2015-11-19

申请号：US14652574

申请日：2012-12-31

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Guoliang Zhang

IPC: C09J133/08

CPC classification number: C09J133/08 ,  C08K5/16 ,  C08K5/17 ,  C08K5/43 ,  C09J7/385 ,  C09J133/10 ,  C09J2203/318 ,  C09J2205/102 ,  C08L33/08 ,  C08L33/10

Abstract: A pressure sensitive adhesive mixture includes a (meth)acrylate polymer and a weak alkaline metal imide or amine. The weak alkaline metal imide or amine has a pKa of 11 to 20 and the molar ratio of the weak alkaline metal imide or amine to the —COOH groups contained in the (meth)acrylate polymer is in a range of about 1.0 to about 5.0. An adhesive formed from the adhesive mixture, a film including an adhesive layer formed from the adhesive mixture and a preparation method thereof are also provided.

Abstract translation: 压敏粘合剂混合物包括（甲基）丙烯酸酯聚合物和弱碱金属酰亚胺或胺。 弱碱金属酰亚胺或胺的pKa为11〜20，弱碱性金属酰亚胺或胺与（甲基）丙烯酸酯聚合物中所含的-COOH基的摩尔比在约1.0〜约5.0的范围内。 还提供了由粘合剂混合物形成的粘合剂，包含由粘合剂混合物形成的粘合剂层的膜及其制备方法。