C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 75/08 (2006.01) B29C 67/24 (2006.01) C08G 18/50 (2006.01) C08J 9/08 (2006.01) C08K 3/34 (2006.01) C08K 7/10 (2006.01)
Patent
CA 2098803
The invention pertains to a low weight, low density rigid polyurethane- polyurea reinforced reaction injection molded (RRIM) part having wollastonite reinforcing fibers dispersed throughout a matrix made by reacting polyisocyanates with a resin containing hydroxy group tertiary amine polyether polyols, a water as a blowing agent, and optionally surfactants, chain extenders, and urethane promoting catalysts. The low density RRIM part using wollastonite and the tertiary amine polyether polyols is a low cost alternative to glass fiber reinforced low density parts, and the part exhibits good mechanical properties and quick demold times.
Basf Corporation
Brown Bari W.
Robic
LandOfFree
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