Surface treatment of polymers

Details Surface treatment of polymers Surface treatment of polymers

1986-11-24

1989-01-17

Schofer, Joseph L.

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...

524460, 524801, 524832, 525360, 525362, 525363, C08F 216, C08F 800

Patent

active

047988614

ABSTRACT:
The properties of water soluble or, especially water swellable polymer particles are improved by surface cross linking that is caused by providing a dispersion of gel polymer particles in an organic solvent, reacting the surfaces of these particles with dissolved cross linking agent and azeotropically distilling the dispersion.

REFERENCES:
patent: 4021399 (1977-05-01), Hunter et al.
patent: 4043952 (1977-08-01), Ganslaw
patent: 4148746 (1979-04-01), Klemmensen et al.
patent: 4367323 (1983-01-01), Kitamura et al.
patent: 4645568 (1987-02-01), Kurps et al.

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