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    • 5. 发明授权
    • Polymer mixtures containing polydiorganosiloxane urea-containing components
    • 含有聚二有机硅氧烷脲的组分的聚合物混合物
    • US06846893B1
    • 2005-01-25
    • US08735836
    • 1996-10-23
    • Audrey A. ShermanMieczyslaw H. MazurekWalter R. RomankoPatrick D. HydeRoy WongAlbert I. Everaerts
    • Audrey A. ShermanMieczyslaw H. MazurekWalter R. RomankoPatrick D. HydeRoy WongAlbert I. Everaerts
    • B32B25/20C08L83/10C09D183/10C09J7/02C09J175/00C09J183/10C08G18/61
    • C09D183/10C08L83/10C08L2666/04C09J183/10
    • A mixture is provided comprising (a) at least one of an elastomeric thermoplastic, a non-elastomeric thermoplastic, an elastomeric thermoset and mixtures thereof, excluding polydiorganosiloxane fluids and (b) a polymer having soft polydiorganosiloxane units, hard polyisocyanate residue units, optionally, soft and/or hard organic polyamine residue units and terminal groups. The hard polyisocyanate residue and the hard polyamine residue comprise less than 50% by weight of the polydiorganosiloxane urea containing component. The polyisocyanate residue is the polyisocyanate minus the —NCO groups and the polyamine residue is the polyamine minus the —NH2 groups. The polyisocyanate residue is connected to the polyamine residue by urea linkages. The terminal groups are non-functional groups or functional groups. The polydiorganosiloxane urea containing component may be reactive under free-radical or moisture curing conditions. The mixture may also optionally contain tackifying materials, free radical initiators, crosslinking agents, cure catalysts, and nonreactive additives such as fillers, pigments, stabilizers, antioxidants, flame retardants, plasticizers, compatibilizers and the like.
    • 提供了一种混合物,其包含(a)弹性体热塑性塑料,非弹性体热塑性塑料,弹性体热固性材料及其混合物中的至少一种,不包括聚二有机基硅氧烷流体,和(b)具有软聚二有机硅氧烷单元的聚合物,硬多异氰酸酯残基单元, 软和/或硬有机多胺残基单元和末端基团。 硬多异氰酸酯残基和硬多胺残基包含少于50重量%的含聚二有机硅氧烷脲的组分。 多异氰酸酯残基是多异氰酸酯减去-NCO基团,多胺残基是多胺减去-NH 2基团。 多异氰酸酯残基通过脲键与多胺残基连接。 末端基团是非官能团或官能团。 含有聚二有机硅氧烷脲的组分可以在自由基或湿固化条件下具有反应性。 混合物还可任选地含有增粘材料,自由基引发剂,交联剂,固化催化剂和非反应性添加剂,如填料,颜料,稳定剂,抗氧化剂,阻燃剂,增塑剂,增容剂等。