公开(公告)号：US09920006B2

公开(公告)日：2018-03-20

申请号：US15194617

申请日：2016-06-28

Applicant: PRC-DeSoto International, Inc.

Inventor： Weibin Cui ,  Renhe Lin

IPC: C08G75/02 ,  C07C323/12 ,  C08G75/045 ,  C09K3/10 ,  C08G75/12 ,  C08G75/04 ,  C07C23/00 ,  G02B1/04

CPC classification number: C07C323/12 ,  C08G75/02 ,  C08G75/045 ,  C08G75/12 ,  C08G2190/00 ,  C09K3/1012 ,  C09K2003/1059

Abstract: Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.