C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
403/14, 400/5509
C08L 75/00 (2006.01) C08G 18/63 (2006.01) C08J 9/04 (2006.01) C08L 57/00 (2006.01) C08L 75/04 (2006.01)
Patent
CA 1068449
A B S T R A C T This invention relates to a process for preparing polyurethane/vinyl polymer articles and to the articles prepared from the process. The process comprises (1) admixing a liquid polyol, a polyisocyanate, a catalyst for urethane formation, an ethylenically unsaturated monomer and a catalyst for polymerising an ethylenically unsaturated monomer, (2) pouring the reaction mixture into a mold and allowing it to react and to solidify, and (3) demolding the resultant articles from the mold. The process of the invention is characterized in that in step (1) one employs a liquid polyol having from 2 to 8 hydroxyl groups per molecule and having a hydroxyl equivalent weight from 30 to 250. The process is further characterized in that one employs less than 60 percent by weight of the ethylenically unsaturated monomer based upon the combined weights of the polyol, the polyisocyanate, and the ethylenically unsaturated monomer. The process of the invention is well suited to produce cellular or non-cellular articles as, for example, furniture components, ornamental or decorative objects, piping elements, machine components, or structural members.
256137
Olstowski Franciszek
Parrish Donald B.
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