Non-punking non-corrosive phenolic foam containing sodium tetrab

Details Non-punking non-corrosive phenolic foam containing sodium tetrab Non-punking non-corrosive phenolic foam containing sodium tetrab

1976-05-24

1978-10-24

Welsh, M. J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521181, C08J 900

Patent

active

041220455

ABSTRACT:
A phenolic foam that is non-corrosive to metallic substrates over which it is applied is disclosed herein. The foam is prepared by hardening an intimate mixture of a conventional foamable phenolic resole resin containing a blowing agent, a hardener and a surface active agent, and sodium tetraborate.

REFERENCES:
patent: 3298973 (1967-01-01), Quarles et al.
patent: 3484391 (1966-04-01), Wheatley et al.
patent: 3663489 (1972-05-01), Byerley et al.
patent: 3673130 (1972-06-01), Papa et al.
patent: 3694387 (1972-09-01), Junger et al.
patent: 3740358 (1973-06-01), Christie et al.
Chem. Abstracts, vol. 75, 153122q, 1971.
Chem. Abstracts, vol. 66, 21852g, 1967.

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