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公开(公告)号：US20240052161A1
公开(公告)日：2024-02-15
申请号：US18355584
申请日：2023-07-20
发明人： Scott D. Phillips , Kurt Davidson , Anthony Walder
CPC分类号： C08L75/06 , C08G18/12 , C08G18/4277 , C08G18/3206 , C08L2207/04
摘要： Compositions and methods are described for polyurethanes with mechanical properties rivalling that of the highest performing commercially available elastomer materials by employing copolymers of a poly(farnesene) diol and ε-caprolactone as the polyol component. Poly(farnesene) diols are produced from biobased monomers and such copolymerization allows incorporation of renewable material in high performance polyurethane materials.
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2.发明公开公开(公告)号：US20240110002A1
公开(公告)日：2024-04-04
申请号：US18451344
申请日：2023-08-17
申请人： INGEVITY UK LTD
发明人： Joel Neale , Scott D. Phillips
CPC分类号： C08G18/4887 , C08G18/3206 , C08G18/6674 , C08G18/7671
摘要： The present application discloses polyurethane or polyurethane-urea compositions with enhanced low temperature performance that includes a reaction product of: at least one diisocyanate and at least one block copolymer of A-B-A type that has an average number molecular weight of 2500-5000 g/mol, wherein the reaction product is formed in the absence of a plasticizer by reacting the reactants in an NCO:OH molar ratio of 0.9:1-2:1. The block copolymer being the reaction product of (i) a poly(tetrahydrofuran) diol in an amount of 40-70 wt % of the total molecular weight of the block copolymer, wherein the tetrahydrofuran is optionally substituted and (ii) a cyclic lactone and/or cyclic ether in an amount of 30-60 wt % of the total molecular weight of the block copolymer. The present disclosure further discloses the reaction further comprising a diol or a diamine chain extender, and compositions comprising the polyurethane or polyurethane-urea composition of the present disclosure.
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