Polyether-polyester block copolymers and their use as dispersant

Details Polyether-polyester block copolymers and their use as dispersant Polyether-polyester block copolymers and their use as dispersant

1991-03-25

1992-09-08

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

427386, 4273884, 523407, 525449, C08G 6300, B05D 302, C08L 5100, C08F 2000

Patent

active

051459442

ABSTRACT:
Polyether-polyester block copolymers obtainable by anionic copolymerization of a monoepoxy compound with a cyclic anhydride of an aromatic dicarboxylic acid using an alkali metal salt of a polyalkylene glycol or of a polyalkylene glycol monoalkyl ether as initiator are suitable as dispersants, especially for the preparation of aqueous epoxy resin dispersions and emulsions. Coatings made with these dispersions with the addition of hardeners are distinguished by improved surface-coating properties.

REFERENCES:
patent: 3963803 (1976-06-01), Tanaka et al.
patent: 4315044 (1982-02-01), Elmore et al.
patent: 4415682 (1983-11-01), Becker
patent: 4861512 (1989-08-01), Gosselink
patent: 4886845 (1989-12-01), Becker et al.

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