公开(公告)号：US20150031815A1

公开(公告)日：2015-01-29

申请号：US14357262

申请日：2012-12-04

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Harpreet Singh ,  Viviano Bertolone ,  Orazio Rubulotta ,  Jorge Jimenez ,  William H. Heath ,  Amarnath Singh ,  William A. Koonce

IPC: C09J175/06 ,  C09J163/04

CPC classification number: C09J175/06 ,  C08G18/10 ,  C08G18/12 ,  C08G18/4009 ,  C08G18/4018 ,  C08G18/4045 ,  C08G18/4202 ,  C08G18/44 ,  C08G63/64 ,  C09J163/04 ,  C09J175/04

Abstract: A two-component curable adhesive or sealant composition is provided. The first component may comprise a mixture of at least one polyol selected from the group comprising a polyester polyol, a polyester-polycarbonate copolymer polyol, and combinations thereof, a resin, and optionally a solvent. The second component may comprise a prepolymer obtained by reacting a polyester-polycarbonate copolymer polyol which is the reaction product of a polyester polyol which is the reaction product of one or more organic acids, and one or more glycols having a functionality of two or more and one or more polycarbonate polyols, at least one organic polyisocyanate component, and at least one chain extending agent and optionally a solvent. Alternatively, the first component may comprise a polyester-polycarbonate copolymer polyol, a resin, and optionally a solvent. The second component may comprise a polyisocyanate curative and optionally a solvent. The cured adhesive exhibits improved hydrolytic properties while maintaining excellent processability and adhesive properties.

Abstract translation: 提供了双组分可固化的粘合剂或密封剂组合物。 第一组分可以包含选自包含聚酯多元醇，聚酯 - 聚碳酸酯共聚物多元醇及其组合的组中的至少一种多元醇，树脂和任选的溶剂的混合物。 第二组分可以包含通过使作为一种或多种有机酸的反应产物的聚酯多元醇与一种或多种具有两个或多个官能度的二元醇的反应产物的聚酯 - 聚碳酸酯共聚物多元醇和 一种或多种聚碳酸酯多元醇，至少一种有机多异氰酸酯组分和至少一种扩链剂和任选的溶剂。 或者，第一组分可以包含聚酯 - 聚碳酸酯共聚物多元醇，树脂和任选的溶剂。 第二组分可以包含多异氰酸酯固化剂和任选的溶剂。 固化的粘合剂表现出改善的水解性能，同时保持优异的加工性能和粘合性能。