Method of producing elastic foams having a base of polyurethane

Details Method of producing elastic foams having a base of polyurethane Method of producing elastic foams having a base of polyurethane

1989-11-27

1992-06-02

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 82, 521120, 521136, 521158, 521159, 521163, 521181, 521187, 521188, C08L 6128, C08L 7504, C08G 1232

Patent

active

051187221

ABSTRACT:
A method of producing elastic foam having a base of polyurethane, in particular for use in the field of automobiles for sound damping. Allows production of foam parts directly in a desired shape in as few operations as possible. The foam is formed from a mixture of at least one polyurethane precondensate, at least on melamine precondensate and further additives for the foaming.

REFERENCES:
patent: 3288894 (1966-12-01), Jacobs
patent: 3294879 (1966-11-01), Deaton
patent: 4334971 (1982-06-01), Mahnke et al.
patent: 4367294 (1983-01-01), Hahn et al.
patent: 4596835 (1986-06-01), Werner et al.
"Journal of Cellular Plastics, 8/68, Microwave curing of Urethane Foams . . . ", R. Rajon, pp. 304-308.
"Journal of Cellular Plastics 11/12/79, A Rapid Predictive Test for Urethane Foam . . . ", H. J. Regle & B. A. Jacobs, pp. 311-314.

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