Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1976-05-28
1978-05-16
Cockeram, H.S.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
252308, 260 318R, 260 326N, 260 332R, 260 25BE, 260 25BD, 260 25BC, 260 75NE, 260 775AA, 260858, C08K 511, C08G 1812, C08G 1832
Patent
active
040898350
ABSTRACT:
The instant invention is directed to stable dispersions and the process of their manufacture. The stable dispersions of the instant invention comprise polyureas and/or polyhydrazo-dicarbonamides as the disperse phase in an hydroxyl group containing material selected from the group consisting of polyethers, polyesters, polyester amides, polycarbonates, and mixtures thereof, and are produced by reacting (1) organic polyisocyanates with (2) polyamines containing primary and/or secondary amino groups and/or hydrazines and/or hydrazides in (3) the hydroxyl group containing material. Component (3) may also contain relatively low molecular weight polyols and/or inert organic solvents. Components (1), (2) and (3) are continuously introduced into a flow mixer in such a quantity that the average residence time in the mixer is less than ten minutes.
REFERENCES:
patent: T777420 (1969-07-01), McSpadden et al.
patent: T777421 (1969-07-01), Spangler et al.
patent: 3141865 (1964-07-01), McEvoy
patent: 3325421 (1967-06-01), Mueller
patent: 3440086 (1969-04-01), Kerns
patent: 3894994 (1975-07-01), Day et al.
patent: 3939222 (1976-02-01), Dieterich
patent: 3963679 (1976-06-01), Ulrich et al.
DAS 1,260,142, Bayer A/G, Feb. 1968.
Dietrich Manfred
Konig Klaus
Bayer Aktiengesellschaft
Cockeram H.S.
Gil Joseph C.
Harsh Gene
Olson R. Brent
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