Novel coating slips

Details Novel coating slips Novel coating slips

1988-11-17

1989-11-07

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...

524504, C08L 2904

Patent

active

048793361

ABSTRACT:
In a coating slip for coating flat surfaces comprising an aqueous dispersion, with a solids content of 8 to 65% by weight, of 100 parts by weight of a pigment, 3 to 30 parts by weight of synthetic high-molecular-weight binder based on copolymers of acrylates, styrene, butadiene and unsaturated carboxylic acid esters and 0.5 to 2 parts by weight of a cobinder the improvement comprising using a cobinder polymer containing a large degree of hydroxyl groups comprising (a) 50 to 95% by weight of vinyl alcohol units, (b) 5 to 50% by weight of 1-alkylvinyl alcohol units of 1 to 4 alkyl carbon atoms, (c) 0 to 20% by weight of vinyl acylate units, (d) 0 to 20% by weight of allyl alcohol units and (e) 0 to 5% by weight of other polymerizable monomers having improved pigment shock behavior and very good activity as an optical brightener support.

REFERENCES:
Chem. Abst., vol. 87: 118700c; Kogyo K. K.; 1977, "Extrudable Vinyl Alcohol Copolymers".
Chem. Abst., vol. 91: 176392x; Kogyo K. K.; 1979, "Hot-Melt Water-Soluble Adhesives".

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