Process for preparing an aqueous resin dispersion and an aqueous

Details Process for preparing an aqueous resin dispersion and an aqueous Process for preparing an aqueous resin dispersion and an aqueous

1994-09-23

1996-08-06

Smith, Jeffrey T.

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...

524818, C08L 6102

Patent

active

055434568

ABSTRACT:
A process for preparing an aqueous resin dispersion includes the steps of copolymerizing a polymeric monomer whose ratio of (meth) acrolein to a total amount of the (meth) acrolein and a vinyl monomer is in the range from 10 weight % to 80 weight % in an organic solvent to obtain a copolymer solution, dispersing the obtained copolymer solution in an aqueous medium and removing an unreacted (meth) acrolein. Since the above process can extremely reduce contents of the unreacted (meth) acrolein and of an oligomer whose number-average molecular weight is less than 1000, an aqueous resin dispersion where problems of a pungent smell, toxicological properties, etc. due to the (meth) acrolein and the oligomer are eliminated can be provided.

REFERENCES:
patent: 3819555 (1974-06-01), Kaufman
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patent: 4988762 (1991-01-01), Overbeek et al.
patent: 5075360 (1991-12-01), Fitt et al.
patent: 5290894 (1994-03-01), Melrose et al.
Encyclopedia of Chemical Technology, vol. 1, (1978), "Acrolein and Derivatives", pp. 277-297.
Kobunshi Kagaku, vol. 28, No. 313, May 1971, pp. 430-436, "Acrolein Polymer".
Chemical Abstracts, vol. 107, No. 24, Dec. 14, 1987, Abe et al., "Self-Crosslinking Resin Compositions".
Chemical Abstracts, vol. 108, No. 4, Jan. 25, 1988, Abe et al., "Self-Crossing Copolymer Compositions".
Chemical Abstracts, vol. 115, No. 16, Oct. 21, 1991, H. Yoshikawa, "Storage-Stable Water-Based Resin Compositions giving Water-and Oil-Resistant Coating Films".

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