Fibre-reinforced rigid polyurethane foam and polyol component th

Details Fibre-reinforced rigid polyurethane foam and polyol component th Fibre-reinforced rigid polyurethane foam and polyol component th

1990-02-22

1991-11-19

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521167, 528 53, 528 54, 528 73, 528111, 524400, C08G 1814

Patent

active

050666851

ABSTRACT:
Polyol compositions suitable for use in the production of fibre-reinforced rigid polyurethane foam comprises (a) at least one amino polyol obtainable by reacting an alkylene oxide with an initiator which has a functionality greater than 2, at least one aromatic ring and at least one amino nitrogen atom and (b) at least 3% by weight, based on the total weight of (a) plus (b), of an adduct of a tertiary amine and an alkylene carbonate. These novel polyol compositions provide foam-forming formulations of suitable viscosity without the need to use a CFC blowing agent and also combine high reactivity with a broad reactivity profile.

REFERENCES:
patent: 4456715 (1984-06-01), Rottmaier et al.
patent: 4500655 (1985-02-01), Brennan
patent: 4731427 (1988-03-01), Younes

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