Process for the preparation of flexible polyester urethane foams

Details Process for the preparation of flexible polyester urethane foams Process for the preparation of flexible polyester urethane foams

1985-02-21

1986-05-13

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521116, 521129, C08G 1814, C08G 1820

Patent

active

045887551

ABSTRACT:
In a process of the preparation of flexible polyester urethane foams by reacting polyester polyols having at least two hydroxyl groups in the molecule with at least difunctional polyisocyanates in the presence of water, optionally of physical blowing agents, catalysts, stabilizers and optionally of other conventional additives, the following two components are added for catalysis in the form of a mixture to the reaction formulation in the amounts given (which are based on the polyester polyol):

REFERENCES:
patent: 3108975 (1963-10-01), Lambert et al.
patent: 3563924 (1971-02-01), Schwarz
patent: 3661808 (1972-05-01), Kennedy
patent: 3703489 (1972-11-01), Morehouse
patent: 3796676 (1974-03-01), Kanner et al.
patent: 4016113 (1977-04-01), Preston et al.

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