C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/04 (2006.01) C08J 9/30 (2006.01) C08J 9/32 (2006.01) C08K 7/16 (2006.01) C08K 7/22 (2006.01) C08K 7/24 (2006.01) C08K 13/04 (2006.01)
Patent
CA 2127565
The present invention relates to a reaction injection molding process for preparing a molded product by reaction of a mixture of (a) an organic polyisocyanate; (b) one or more compounds containing at least two isocyanate- reactive groups; (c) about 0.5 to about 40% by weight, based on the weight of the molded product, of rigid microspheres, preferably in admixture with component (b); and, optionally, (d) an inert gas dissolved in at least one of components (a) or (b) in an amount sufficient to produce a molded product having a density that is at least 1% less than the density of an analogous molded product without an inert gas but which is at least 0.75 g/cm3; and (e) up to 45% by weight, based upon the weight of the molded product, of a reinforcing filler.
Lee Bin
Corporation Bayer
Smart & Biggar
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