Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1982-04-05
1984-03-06
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
B29C 500, B29C 302
Patent
active
044353499
ABSTRACT:
A method for making a high strength composite of a reinforcing mat impregnated with reaction injection molded (RIM) polyurethane elastomer is disclosed. The method comprises placing the reinforcing mat in a mold cavity and injecting into the mold cavity a formulation capable of forming a reaction injection molded polyurethane elastomer comprising a polyol of above about 500 equivalent weight, a chain extending agent, a delayed action catalyst and a polyisocyanate.
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patent: 4148854 (1979-04-01), Cordis et al.
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patent: 4254069 (1981-03-01), Dominguez et al.
patent: 4281096 (1981-07-01), Nomura et al.
patent: 4364887 (1982-12-01), Becht et al.
Dominquez Richard J. G.
Rice Doris M.
Hoag Willard E.
Mossman David L.
Park Jack H.
Priem Kenneth R.
Texaco Inc.
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