Deinking processes polymers-in-water emulsion for use in deinkin

Details Deinking processes polymers-in-water emulsion for use in deinkin Deinking processes polymers-in-water emulsion for use in deinkin

1997-09-18

2000-08-29

Reddick, Judy M.

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...

524556, 524558, 524560, 524561, 524562, 524812, 524820, 524823, 524824, C08L 3900

Patent

active

061110094

ABSTRACT:
Flexographic or other printed paper is deinked by a process which comprises pulping in the presence of an emulsion of crosslinked, insoluble, ionisable and swellable polymer particles. The emulsion preferably provides a viscosity (at 3%) in the ionised state of below 50,000 cps (Brookfiled RVT) and is novel.

REFERENCES:
patent: 4567246 (1986-01-01), Gajria et al.
patent: 4764554 (1988-08-01), Tonge
patent: 5017646 (1991-05-01), Muramoto et al.
patent: 5637191 (1997-06-01), Langley et al.
patent: 5744043 (1998-04-01), Cutts et al.

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