C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 18/48 (2006.01) C08G 18/64 (2006.01)
Patent
CA 2362141
A polyurethane composition useful for the manufacture of an elastomeric part is provided. The polyurethane composition comprises a polyisocyanate prepolymer and an active hydrogen containing compound, wherein from about 10 about 60 percent by weight of the composition is a butylene oxide adduct and from about 70 to about 100 percent by weight of the butylene oxide adduct is present in the polyisocyanate prepolymer. A method for preparing a polyurethane polymer from the polyurethane composition is also provided. Also, a method for preparing polyurethane polymer article from the polyurethane composition is provided.
L'invention concerne une composition de polyuréthanne utile pour la fabrication d'un élément élastomère, qui comprend un prépolymère de polyisocyanate et un composé à hydrogène actif. La composition comprend, en poids, entre environ 10 et environ 60 % d'adduit d'oxyde de butylène. On trouve entre environ 70 et environ 100 %, en poids, de cet adduit dans le prépolymère de polyisocyanate. L'invention concerne en outre un procédé relatif à l'élaboration d'un polymère de polyuréthanne à partir de ladite composition. L'invention concerne enfin un procédé relatif à l'élaboration d'un article en polymère de polyuréthanne, à partir de la même composition.
Arnold Kenneth B.
James Allan
Porter James R.
Dow Global Technologies Inc.
Smart & Biggar
The Dow Chemical Company
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