公开(公告)号：US20250136838A1

公开(公告)日：2025-05-01

申请号：US18834678

申请日：2023-01-27

Applicant: PRC-Desoto International, Inc.

Inventor： Razmik Boghossian ,  James Smith ,  Laxman Gurung ,  Renhe Lin

IPC: C09D175/12 ,  C08G18/12 ,  C08G18/32

Abstract: Isocyanate-functional polyurethane prepolymers are prepared by reacting a polymeric diol, a non-linear short chain diol, a multifunctional polyol, and a diisocyanate. Coating compositions comprising the isocyanate-functional polyurethane prepolymers and a polyamine curing agent can be used to prepare topcoats that meet the demanding performance requirements of aerospace and other applications.