Invention Grant
- Patent Title: Urethane/urea-containing bis(alkenyl) ethers, prepolymers prepared using urethane/urea-containing bis(alkenyl) ethers, and uses thereof
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Application No.: US15194607Application Date: 2016-06-28
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Publication No.: US10370561B2Publication Date: 2019-08-06
- Inventor: Weibin Cui , Renhe Lin
- Applicant: PRC-DeSoto International, Inc.
- Applicant Address: US CA Sylmar
- Assignee: PRC-DeSoto International, Inc.
- Current Assignee: PRC-DeSoto International, Inc.
- Current Assignee Address: US CA Sylmar
- Agent William R. Lambert
- Main IPC: C09D181/02
- IPC: C09D181/02 ; C08G18/67 ; C08G18/75 ; C08G75/045 ; C08G59/00 ; C08K3/26 ; C08L81/02 ; C09K3/10
Abstract:
Urethane/urea-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 urethane/urea-containing bis(alkenyl) ether-containing polythioether prepolymers and/or urethane/urea-containing bis(alkenyl) ether curing agents exhibit improved physical properties suitable for use in aerospace sealant applications.
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