Preparation of integral skin cellular plastics by the polyadditi

Details Preparation of integral skin cellular plastics by the polyadditi Preparation of integral skin cellular plastics by the polyadditi

1992-07-20

1993-02-23

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 455, 521117, 521159, 521172, 521173, 521174, 521176, 521902, C08J 934

Patent

active

051890682

ABSTRACT:
A process for the preparation of cellular plastics, preferably hard structural polyurethane foams, by the polyisocyanate polyaddition process involves reacting

REFERENCES:
patent: 2865869 (1958-12-01), Hindersinn et al.
patent: 3338846 (1967-08-01), Klopfer
patent: 3684754 (1972-08-01), Barie, Jr. et al.
patent: 3980594 (1976-09-01), Fabris et al.
patent: 4352896 (1982-10-01), Kopp
patent: 4715746 (1987-12-01), Mann

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