Polyurethanes

Details Polyurethanes Polyurethanes

1989-02-21

1990-12-04

Foelak, Morton

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

2643281, 528 68, C08G 1832, B29B 700

Patent

active

049755153

ABSTRACT:
Novel polyurethanes having superior high temperature performance are prepared by reacting 3,5-di(methylthio)2,6-diaminotoluene with a toluenediisocyanate prepolymer having a free --NCO content of 0.1-20% by weight, preferably a toluenediisocyanate/polyether glycol prepolymer having a free --NCO content of 2-7% by weight. The elastomers have good dynamic properties, such as resilience, that make them attractive as tire-forming materials.

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patent: 4526905 (1985-07-01), Lucast et al.
patent: 4549007 (1985-10-01), Lin et al.
patent: 4595742 (1986-06-01), Nalepa et al.
patent: 4722989 (1988-02-01), Starna et al.

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