Closed cell phenolic foam

Details Closed cell phenolic foam Closed cell phenolic foam

1976-03-18

1980-05-27

Anderson, Harold D.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521181, 525502, 528142, 528143, C08J 902

Patent

active

042051355

ABSTRACT:
A process for producing a closed cell phenolic-resin foam material comprising a phenolic-resin polymer and a surfactant which is branched, non-ionic, with a hydroxyl value less than 50 achieved by capping excess hydroxyl groups; the material, and a structural laminate employing the material. The material has a thermal conductivity which is low initially and remains low for a long period of time.

REFERENCES:
patent: 3968300 (1976-07-01), Moss et al.
patent: 4036793 (1977-07-01), Moss

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