Method for making aqueous dispersions of a synthetic resin

Details Method for making aqueous dispersions of a synthetic resin Method for making aqueous dispersions of a synthetic resin

1982-10-18

1984-06-26

Michl, Paul R.

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...

524458, C08F 216

Patent

active

044567260

ABSTRACT:
What is disclosed is making highly concentrated, bimodal, aqueous synthetic resin dispersions by the emulsion polymerization of ethylenically unsaturated monomers, in the presence of emulsifiers and free radical-forming initiators, by adding to a first latex containing a first dispersed synthetic resin and an aqueous phase, a second latex containing a second dispersed synthetic resin and an aqueous phase and a monomer phase containing a free-radically polymerizable monomer, and then polymerizing the monomer, the average size of the particles of said first resin differing by a factor between 2 and 15 from that of the particles of second resin, the total weight of the resins and monomers representing 100 parts by weight, and the total weight of the aqueous phases representing not more than 70 parts by weight.

REFERENCES:
patent: 4245070 (1981-01-01), Kemp
patent: 4247438 (1981-01-01), Eck et al.
patent: 4254004 (1981-03-01), Abbey
patent: 4322330 (1982-03-01), Merz et al.

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