Process for producing a rigid polyurethane foam having excellent

Details Process for producing a rigid polyurethane foam having excellent Process for producing a rigid polyurethane foam having excellent

1979-02-21

1980-05-27

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

428315, 521124, 521125, 521127, 521129, 521131, 521167, 521173, 521175, 521176, 521177, 521902, 521903, C08G 1814, C08G 1832, C08G 1826

Patent

active

042051363

ABSTRACT:
A process for producing a rigid polyurethane foam having excellent flame retardance and low-smoke development is disclosed. When the rigid polyurethane foam is produced by reacting a polyhydroxyl compound with an organic polyisocyanate in the presence of a blowing agent, a surfactant, a catalyst and other additives, 3-methylpentane-1,3,5-triol is used as a part of the polyhydroxyl compound.

REFERENCES:
patent: 3591532 (1971-07-01), Abercrombie et al.
patent: 3933694 (1976-01-01), Wysocki
patent: 3956202 (1976-05-01), Iwasaki
patent: 4039487 (1977-08-01), Kolakowski et al.
patent: 4133781 (1979-01-01), Ashida et al.
patent: 4145318 (1979-03-01), Ohashi et al.
Japanese Patent Application Publications 3,397/71; 43,398/74; 17,999/76; 12,238/77; 15,118/77 and 15,119/77.
Japanese Patents Laid Open 34,698/75; 78,699/75; 92,997/75; 88,014/75; 127,997/75.

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