Low smoke generating polyurethane foam

Details Low smoke generating polyurethane foam Low smoke generating polyurethane foam

1978-06-26

1980-08-05

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521129, 521167, 521903, 428315, C08G 1848, C08G 1814

Patent

active

042162963

ABSTRACT:
A polyurethane foam composition is disclosed which has low smoke generation characteristics (i.e., a rating of less than 50 in the ASTM E-84 Tunnel Test). The composition comprises 80-100 parts by weight of poly(trichloro-oxybutylene) carbohydrate adduct, 0-20 parts by weight of an amine-based polyol, 80-155 parts by weight of a polyalkylene polyphenyl isocyanate, 10-50 parts by weight of a fluorcarbon foaming agent, 0.3-3.0 parts by weight of a surfactant, and 0.005-4.0 parts of a catalyst. The foam finds use as a thermal insulation, particularly pipe insulation.

REFERENCES:
patent: 3597371 (1971-08-01), Britain
patent: 3741921 (1973-06-01), Lapkin
patent: 3779953 (1973-12-01), Papa et al.

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