END-CAPPED POLYISOBUTYLENE POLYURETHANE

A polymeric material includes a polyisobutylene-polyurethane block copolymer. The polyisobutylene-polyurethane block copolymer includes soft segments, hard segments, and end groups. The soft segments include a polyisobutylene diol residue. The hard segments include a diisocyanate residue. The end gr...

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Bibliographic Details
Main Authors RO, Andrew J, WULFMAN, David R, WILLOUGHBY, Patrick, GURUNG, Niraj, DELANEY, JR, Joseph T
Format Patent
LanguageEnglish
French
German
Published 25.11.2020
Subjects
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Summary:A polymeric material includes a polyisobutylene-polyurethane block copolymer. The polyisobutylene-polyurethane block copolymer includes soft segments, hard segments, and end groups. The soft segments include a polyisobutylene diol residue. The hard segments include a diisocyanate residue. The end groups are bonded by urea bonds to a portion of the diisocyanate residue. The end groups include a residue of a mono-functional amine.
Bibliography:Application Number: EP20190720707