Amine-modified polyurethane (urea) foams and a process for their

Details Amine-modified polyurethane (urea) foams and a process for their Amine-modified polyurethane (urea) foams and a process for their

1987-06-03

1989-01-10

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 521157, 521118, 521128, C08G 1800, C08G 1814, C08J 900

Patent

active

047974303

ABSTRACT:
Amine-modified polyurethane (urea) foams are made by reacting a polyisocyanate with a relatively high molecular weight isocyanate-reactive compound in the presence of a difunctional and/or polyfunctional amine corresponding to the formula(e) ##STR1## in which X, R', R", m and n each represent specified groups or values. The amine is used in a quantity of from 0.01 to 5 parts by weight for every 100 parts by weight relatively high molecular weight isocyanate-reactive compound. Known additives and auxiliaries may also be included in the reaction mixture. The foams thus produced are characterized by improved mechanical properties and reduced amine odor. These foams are usefuel as cushioning materials, insulating materials, coatings and elastomeric materials.

REFERENCES:
patent: 3660326 (1972-05-01), Mallabar
patent: 4136241 (1979-01-01), Ammann
patent: 4334944 (1982-06-01), Creyf
patent: 4530941 (1985-07-01), Turner et al.
patent: 4585804 (1986-04-01), Lancaster et al.
patent: 4642320 (1987-02-01), Turner et al.
CA 104:207860s.
CA 104:207861t.
CA 95:132278t.

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