Aqueous polymer dispersions

Details Aqueous polymer dispersions Aqueous polymer dispersions

1991-07-22

1998-02-24

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...

524251, 524359, 524394, 524400, 524425, 524430, 524433, 524714, C08K 513

Patent

active

057213127

ABSTRACT:
Aqueous polymer dispersions are obtained by polymerizing a monomer mixture which contains from 10 to 100% by weight of halogenated monomers by radical emulsion polymerization in aqueous medium, adjusting the pH of the aqueous phase of the resulting aqueous polymer dispersion to from 5 to 10 by addition of bases which differ from ammonia and from primary and secondary amines, and adding from 0.005 to 1% of the weight of the monomer mixture of one or more substances from the group comprising glycerol, pivalic acid, paraldehyde, 2,6-di-tert-butyl-p-cresol, benzophenone, alkyl-substituted benzophenones, thiosulfuric acid and salts thereof, and oxalic acid and salts thereof, it being possible to add both the bases and the one or more substances before, during and/or after the emulsion polymerization.

REFERENCES:
patent: 3862066 (1975-01-01), Reiter et al.
Patent Abstracts of Japan, 590 C-78 & JP-A-53 022585 (Kanefafuchi Kagaku k.k.k.) Mar. 2, 1978.

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