Closed cell phenolic foams

Details Closed cell phenolic foams Closed cell phenolic foams

1984-12-19

1986-03-11

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521117, 521121, 521130, 521131, 521136, 521181, C08J 914

Patent

active

045755213

ABSTRACT:
An improved process is disclosed for the preparation of a cured substantially closed cell phenolic resin foam by preparing a mixture of a foamable phenol-aldehyde resin, a blowing agent, and an acid catalyst, allowing the mixture to foam, and curing the phenolic foam, wherein the improvement comprises:

REFERENCES:
patent: 3389094 (1968-06-01), D'Alessandro
patent: 3779959 (1973-12-01), Pinten et al.
patent: 4001148 (1977-01-01), Simec et al.
patent: 4133931 (1979-01-01), Beale et al.
patent: 4165413 (1979-08-01), Sefton
patent: 4219623 (1980-08-01), Sudan et al.
patent: 4247413 (1981-01-01), Beale et al.
patent: 4303758 (1981-12-01), Gusmer
patent: 4353994 (1982-10-01), Smith

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