Aqueous papercoating compositions comprising a substantially H.s

Details Aqueous papercoating compositions comprising a substantially H.s Aqueous papercoating compositions comprising a substantially H.s

1994-08-18

1996-10-08

Mulcahy, Peter D.

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...

524522, 5253297, 5253299, 5253303, 5253305, 525374, 525376, 525577, 525386, C08K 326

Patent

active

055632017

ABSTRACT:
Rheologically/water retentivity improved aqueous papercoating compositions comprise immixture, in water, of (i) a water-insoluble, non-alkali-swellable latex A of a film-forming polymer having a mean particle size .phi..sub.A ranging from 60 to 300 nm, (ii) a water-insoluble, alkali-swellable latex B of a polymer having a mean particle size .phi..sub.B ranging from 20 to 150 nm measured at a pH of from 2 to 4 and swelling at least 1.5 times in diameter in an alkaline medium, and (iii) an inorganic pigment C which comprises at least 40% by weight of CaCO.sub.3.

REFERENCES:
patent: 3963843 (1976-06-01), Hitchmough et al.
patent: 4952623 (1990-08-01), Auchter et al.
patent: 5093449 (1992-03-01), Durney Cronin et al.
World Patents Index, Week 7614, Derwent Publications Ltd., London, GB; AN-7624612X & DD-A-117 688 (Steffers) 20 Jan. 1976.

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