Process for foaming plastics

Details Process for foaming plastics Process for foaming plastics

1980-08-25

1981-09-08

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521115, 521143, 521146, 521180, 521182, 521184, 521189, C08J 908

Patent

active

042885604

ABSTRACT:
A process for foaming thermoplastic materials by adding to the plastics material 0.05 to 5 percent by weight of a dioxazolone of the formula I ##STR1## in which n is 1, 2 or 3, and when n is 1

REFERENCES:
patent: 2610157 (1952-09-01), Gluesenkamp
patent: 3442829 (1969-05-01), Moore et al.
patent: 3560492 (1971-02-01), Burk, Jr.
patent: 3725321 (1973-04-01), Wirth et al.
patent: 3793254 (1974-02-01), Wolgemuth
patent: 4097425 (1978-06-01), Niznik
patent: 4104195 (1978-08-01), Ley

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