Polyurethanes reinforced with rigid rod micro fillers

Details Polyurethanes reinforced with rigid rod micro fillers Polyurethanes reinforced with rigid rod micro fillers

1986-06-25

1987-10-20

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524191, 524377, 525123, 525452, 525453, C08G 1814

Patent

active

047014750

ABSTRACT:
In one aspect, this invention is a polyurethane polymer having dispersed therein elongated particles of a high-melting, rigid polymer in an amount sufficient to measurably increase the tensile strength and/or elongation of the polyurethane relative to a like polyurethane which is prepared in the absence of said elongated particles.
In another aspect, this invention is an active hydrogen-containing composition comprising at least one active hydrogen-containing compound having dispersed therein elongated particles of a high-melting rigid polymer in an amount which provides reinforcement to a polyurethane polymer prepared by reacting said active hydrogen-containing composition with a polyisocyanate.

REFERENCES:
patent: 4102831 (1978-07-01), Osgood

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