Foamable resole resin composition

Details Foamable resole resin composition Foamable resole resin composition

1976-12-20

1980-08-05

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521114, 521117, 521123, 521124, 521129, 521133, 521181, 521187, 521188, 528140, 528144, C08J 908

Patent

active

042162955

ABSTRACT:
This invention relates to an improved foamable resole resin composition comprising a resole resin, a blowing agent and a surfactant wherein said improvement comprises incorporating a particular resole resin catalyzed with alkaline earth metal hydroxides and neutralized with oxalic acid or its acid salts providing inert insoluble oxalate salts dispersed in said resole. Said salts are sized controlled and stabilized in an aqueous resole resin solution having about 60 to 99% resole resin by weight. Methods for preparing and foaming said compositions are disclosed.

REFERENCES:
patent: 2933461 (1960-04-01), Mullen
patent: 3271331 (1966-09-01), Ender
patent: 3389094 (1968-06-01), D'Alessandro
patent: 3956205 (1976-05-01), Higginbottom
patent: 4011186 (1977-03-01), Higginbottom

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