Invention Grant
- Patent Title: Polyurethane prepolymers incorporating nonlinear short chain diols and/or soft diisocyanates compositions, and uses thereof
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Application No.: US15384346Application Date: 2016-12-20
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Publication No.: US11180604B2Publication Date: 2021-11-23
- Inventor: Razmik Boghossian , James Smith
- 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: C08G18/12
- IPC: C08G18/12 ; C08G18/32 ; C08G18/10 ; C08G18/42 ; C08G18/76 ; C08G18/48 ; C08G18/44 ; C09D175/02 ; C08G18/66 ; C08G18/75
Abstract:
Polyurethane prepolymers having non-linear short chain diols and/or soft diisocyanates incorporated into the backbone are used to provide cured polyurethane coatings having a high hard segment content and low haze. The polyurethane prepolymers can also be used to improve the dispersion of filler in cured polyurethane compositions having a high filler loading. Cured coatings prepared from the two-part polyurethane systems meet the requirements for aerospace applications.
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