Process for producing cross-linked polymer containing carboxyl g

Details Process for producing cross-linked polymer containing carboxyl g Process for producing cross-linked polymer containing carboxyl g

1996-03-25

1997-05-13

Smith, Jeffrey T.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526193, 5263171, 5263183, 5263186, C08F 206

Patent

active

056293950

ABSTRACT:
There is provided an industrially advantageous process for producing a crosslinked polymer containing carboxyl groups which comprises (a) polymerizing an .alpha.,.beta.-unsaturated carboxylic acid and a crosslinking agent copolymerizable with it in the presence of a radical polymerization catalyst in an inert solvent, (b) heating the polymerized product in the presence of a radical scavenger and (c) removing the solvent. The polymer dissolved in water has high viscosity and excellent flowing properties.

REFERENCES:
patent: 2923692 (1960-02-01), Ackerman et al.
patent: 2958679 (1960-11-01), Jones
patent: 3426004 (1969-02-01), Wagner et al.
patent: 4267365 (1981-05-01), Findeisen
patent: 4748220 (1988-05-01), Hartmann et al.
Chemical Abstracts 99:123553j - Abstract of JP-58 84,819.

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