Polyurethanes

Details Polyurethanes Polyurethanes

1991-10-28

1992-09-01

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521115, 521163, 521167, C08G 1802, C08G 1818

Patent

active

051439425

ABSTRACT:
Novel polyurethane-urea foams having superior tear and tensile strengths, elongation and load-bearing are prepared by reacting an alkylthio-substituted aromatic diamine in a mixture of polyols with an aromatic diisocyanate or aromatic diisocyanate prepolymer or mixtures thereof, having free NCO content of 0.1-50% by weight. These foams have good dynamic properties that make them attractive as cushioning materials.

REFERENCES:
patent: 4477604 (1984-10-01), Oechsle
patent: 4520186 (1985-05-01), Hess et al.
patent: 4595742 (1986-06-01), Nalepa et al.
patent: 4631298 (1986-12-01), Presswood
patent: 5059634 (1991-10-01), Smith

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