C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/06 (2006.01) C08F 283/00 (2006.01) C08G 18/08 (2006.01) C08G 18/46 (2006.01) C08L 51/08 (2006.01) C09D 151/08 (2006.01) C09D 175/06 (2006.01) C09J 151/08 (2006.01) C09J 175/06 (2006.01)
Patent
CA 2259364
A method for the preparation of sulfonated polymer compositions wherein water dispersible isocyanate-terminated polyurethane prepolymers are reacted in the presence of aqueous polyvinyl dispersions which may contain active hydrogen atoms. The invention is further directed to a water-based sulfonated polyurethane polyvinyl hybrid latex wherein a sulfonated polyurethane is used as a seed for the polymerization of ethylenically unsaturated monomers and a method for preparing the same. The inventive compositions develop interpenetrating polymer networks or may form core-shell type structures, and are characterized as having enhanced mechanical and adhesion properties.
Méthode de préparation de compositions polymères sulfonées selon laquelle des prépolymères dispersables dans l'eau se terminant par l'isocyanate entrent en réaction en présence de dispersions aqueuses de polyvinyle pouvant contenir des atomes d'hydrogène actif. En outre, l'invention concerne un latex hybride de polyvinyle de polyuréthanne sulfonée à base d'eau, où la polyuréthanne sulfonée est utilisée en tant que germe lors de la polymérisation de monomères non saturés d'éthylène, ainsi qu'une méthode de fabrication de ladite composition. Les compositions inventées peuvent développer un alliage IPN ou former des structures du type noyau-enveloppe et se distinguent par leurs propriétés mécaniques et leur adhérence améliorées.
Duan Youlu
Wei Yi
Zhu Yuduo
H.b. Fuller Licensing & Financing Inc.
Rogers Law Office
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