Manufacture of cellular polymers and compositions therefor

Details Manufacture of cellular polymers and compositions therefor Manufacture of cellular polymers and compositions therefor

1993-05-27

1994-11-29

Foelak, Morton

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218224, 25218225, 25218226, 25218227, 521131, 521132, 521 51, C09K 300

Patent

active

053687698

ABSTRACT:
A method for the preparation of a flexible foam, an integral skin foam or a microcellular elastomer by reacting an organic polyisocyanate and an isocyanate-reactive composition comprising at least one isocyanate-reactive compound of molecular weight of 1000 to 10000 and a functionality of 2 to 4 in the presence of a blowing agent, characterized in that the reaction is conducted in the presence of an inert, insoluble, organic liquid which has a boiling point of at least 60.degree. C. at 1 bar. CFC-free foams and elastomers of good quality are obtainable.

REFERENCES:
patent: 4981879 (1991-01-01), Snider
patent: 5162384 (1992-11-01), Owens et al.
patent: 5210106 (1993-05-01), Dams et al.
patent: 5211873 (1993-05-01), Dams et al.

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