Condensed resin dispersion and process for its production

Details Condensed resin dispersion and process for its production Condensed resin dispersion and process for its production

1993-09-16

1995-08-01

Hamilton, III, Thomas

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

521 67, 524377, 525509, 528 76, C08J 930, C08K 506, C08G 1232, C08L 6128

Patent

active

054381070

ABSTRACT:
A condensed resin dispersion having fine particles of a condensed resin dispersed stably in a polyether polyol (c), the condensed resin being a reaction product of an aldehyde and a compound condensable with the aldehyde, or of their precondensate, wherein the fine particles of the condensed resin are fine condensed resin particles formed by the reaction and precipitation conducted in an isocyanate-modified polyether (b) obtained by reacting an organic polyisocyanate to a polyether (a) having at least one active hydrogen group reactive with an isocyanate group, or to such a polyether (a) and a low molecular weight active hydrogen-containing compound having at least one active hydrogen group, and having substantially no free isocyanate group.

REFERENCES:
patent: 4225481 (1980-09-01), Wagner
patent: 4260530 (1981-04-01), Reischl et al.
patent: 4301262 (1981-11-01), Wagner et al.
patent: 5030685 (1991-07-01), Doi et al.

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