Preparation of a binder suitable for coating agents

Details Preparation of a binder suitable for coating agents Preparation of a binder suitable for coating agents

1985-06-13

1986-11-18

Pertilla, Theodore E.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524508, 524510, 524811, 524841, 525142, 525143, C08L 6300, C08L 6104

Patent

active

046236791

ABSTRACT:
A binder which is suitable for coating agents and is based on a combination which is essentially free of protective colloids and consists of an aqueous primary dispersion of a synthetic polymer and a water-insoluble polycondensate of phenols and aldehydes, some of which may be replaced by ketones, is prepared by a process in which the phenolic components for the polycondensate are first mixed with an aqueous primary dispersion of a synthetic polymer which contains glycidyl, carbonyl, N-methylol, N-alkoxymethyl, ether, amino and/or hydrazo groups and may furthermore contain carboxyl or hydroxyl groups, and the polycondensation with the aldehydes (and ketones) is then carried out in this mixture, under conventional conditions.
The binders prepared according to the invention are useful as binders for dispersion paints and coatings, in particular as heat-curable binders for metal finishes.

REFERENCES:
patent: 3536783 (1970-10-01), Jeffreys et al.
patent: 3538972 (1970-11-01), Yurcick
patent: 3644570 (1972-02-01), Jeffreys
patent: 3784496 (1974-01-01), Smith et al.
patent: 3944703 (1976-03-01), Harding
patent: 4246144 (1981-01-01), Girgis
patent: 4316827 (1982-02-01), Pacala et al.
patent: 4316968 (1982-02-01), Girgis
patent: 4400229 (1983-08-01), Demmer et al.

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