Preparation of resilient melamine foams

Details Preparation of resilient melamine foams Preparation of resilient melamine foams

1986-09-24

1987-05-19

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 85, 521 89, 521 97, 521107, 521121, 521124, 521125, 521130, 521187, C08J 914

Patent

active

046669485

ABSTRACT:
Resilient foams based on melamine resins are prepared by foaming an aqueous solution which contains a melamine/formaldehyde precondensate, an emulsifier, a volatile blowing agent and a curing agent and then curing the foam. In this process, from 0.2 to 4% by weight of an alkali metal, alkaline earth metal or aluminum salt of an organic, preferably polybasic acid, of a polyphosphoric acid or of a boron acid are added to the aqueous solution.

REFERENCES:
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patent: 4192923 (1980-03-01), Tajkowski
patent: 4334971 (1982-08-01), Mahnke et al.
patent: 4336170 (1982-06-01), Horiike et al.
patent: 4390643 (1983-06-01), Kanada et al.
patent: 4511678 (1985-04-01), Mahnke et al.
patent: 4540717 (1985-09-01), Mahnke et al.

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