Aqueous coating composition containing fine particles of water i

Details Aqueous coating composition containing fine particles of water i Aqueous coating composition containing fine particles of water i

1987-02-03

1988-03-15

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524460, 524458, 524504, 524510, 524512, 524515, 524522, 524513, 523402, C08L 6300, C08L 3302

Patent

active

047314095

ABSTRACT:
An aqueous coating composition comprising (A) an aqueous medium, (B) at least one water soluble or dilutable resin which has a water tolerance of 4 or more and whose 1% by weight aqueous solution shows a surface tension of 51 dyne/cm or less, and (C) fine particles of resinous solution of water insoluble resin in a hydrophobic solvent, the particles being uniformly dispersed in the combination of said aqueous medium (A) and the water soluble or dilutable resin (B) and having a mean diameter of 1.mu. or less, which is characterized in that the absolute value of difference in solubility parameter (.vertline..DELTA.Sp.vertline.) between said resinous solution and said water soluble or dilutable resin is within a range of .vertline..DELTA.Sp.vertline.<2.
The present coating composition is excellent in storage stability and application characteristics, resulting a coating with excellent gloss and surface smoothness.

REFERENCES:
patent: 4504609 (1985-03-01), Kuwajima et al.
patent: 4510275 (1985-04-01), Ihikura et al.
patent: 4518724 (1985-05-01), Kuwajima et al.
patent: 4624973 (1986-11-01), Kuwajima et al.

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