Process for reinforced reaction injection molding of polyurethan

Details Process for reinforced reaction injection molding of polyurethan Process for reinforced reaction injection molding of polyurethan

1981-08-12

1983-04-26

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521122, C08G 1814

Patent

active

043813526

ABSTRACT:
A reinforced reaction injection molding of polyurethanes is prepared by reacting an organic polyisocyanate, a polyoxyalkylene polyether polyol, a chain extending agent, a catalyst, optionally a blowing agent and glass fibers. The glass fibers form a stabilized dispersion in the polyol by employing as a suspending agent the reaction product of a polyamine and a polyester.

REFERENCES:
patent: 2973382 (1961-02-01), Dreher
patent: 3892691 (1975-07-01), White et al.
patent: 4102833 (1978-07-01), Salisburg
patent: 4243760 (1981-01-01), McDaniel et al.
patent: 4288563 (1981-09-01), Thorpe

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