Stable dispersions and their use in the preparation of polyureth

Details Stable dispersions and their use in the preparation of polyureth Stable dispersions and their use in the preparation of polyureth

1992-07-10

1994-07-26

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 65, 521130, 521159, 521163, 521164, 528 20, 528 44, 528 48, 528 61, 528 65, C08J 900, C08G 1832

Patent

active

053327632

ABSTRACT:
The present invention relates to an improved process for preparing foams comprising reacting polyisocyanates with an in situ produced stable low solids dispersion of polyureas and/or polyhydrazodicarbonamides in a hydroxyl-group-containing material as a dispersing agent by reacting:

REFERENCES:
patent: 3325421 (1967-06-01), Muller
patent: 4042537 (1977-08-01), Dahm et al.
patent: 4089835 (1978-05-01), Konig et al.
patent: 4305857 (1981-12-01), Reischl
patent: 4305858 (1981-12-01), Reischl

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