Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1993-02-16
1993-08-31
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521164, 521170, C08G 1800, C08J 900
Patent
active
052409694
ABSTRACT:
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.
REFERENCES:
patent: 4226944 (1980-10-01), Stone et al.
patent: 4582887 (1986-04-01), Dominguez et al.
patent: 4758604 (1988-07-01), Barron
patent: 4800103 (1989-01-01), Jeffs
patent: 4871789 (1989-10-01), Martinez
patent: 4938825 (1990-07-01), MacDonald
patent: 4943603 (1990-07-01), Martinez
patent: 4999383 (1991-03-01), Blount
patent: 5036118 (1991-07-01), Martinez
patent: 5071613 (1991-12-01), Furami et al.
patent: 5077330 (1991-12-01), Ehrhart et al.
patent: 5096644 (1992-03-01), Endo et al.
BASF Corporation
Carmen Dennis V.
Foelak Morton
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