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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Main Authors | , , , , |
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Format | Patent |
Language | English French German |
Published |
25.11.2020
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: EP20190720707 |