Process for the precipitation of aqueous plastics dispersions co

Details Process for the precipitation of aqueous plastics dispersions co Process for the precipitation of aqueous plastics dispersions co

1992-12-16

1993-08-31

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528489, 528490, 528491, 210724, 210725, 210726, 210727, 210735, C08J 314, C02F 152

Patent

active

052410455

ABSTRACT:
A process for the precipitation of aqueous plastics dispersions containing polyvinyl alcohol, preferably from waste waters, and separation of the polymeric solids content, which comprises adding the following to the dispersion in order, with thorough mixing:

REFERENCES:
patent: 4066541 (1978-01-01), Sando et al.
patent: 4078129 (1978-03-01), Yamagata et al.
patent: 4166033 (1979-08-01), Zimmermann et al.
patent: 5026485 (1991-06-01), Anderson
patent: 5110481 (1992-05-01), Sando et al.
Copy of European Search Report (3 pages).
Copy of Derwent Article (2 pages) No. 77-85749Y.
Copy of Derwent Article (1 page) No. 77-13589Y.

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