Process for preparing cationic polymers

Details Process for preparing cationic polymers Process for preparing cationic polymers

1980-04-22

1982-07-20

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...

526212, 524767, C08L 3908

Patent

active

043405223

ABSTRACT:
A process for preparing a solution of a copolymer of a vinylpyridine and an ethylenically-unsaturated copolymerizable vinylbenzyl quaternary salt is disclosed. The process comprises polymerizing, in the presence of a polymerization medium comprising water and a lower alcohol, a vinylpyridine and a copolymerizable vinylbenzyl quaternary ammonium salt having the formula ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is independently alkyl; substituted alkyl; cycloalkyl; aryl; aralkyl; alkaryl, or at least two of R.sup.1, R.sup.2 and R.sup.3 together with the quaternary nitrogen atom to which they are bonded complete a saturated or unsaturated, substituted or unsubstituted nitrogen-containing heterocyclic ring. The process provides the desired copolymer in the form of a clear solution useful in the formation of polymeric coatings or layers utilized as image-receiving layers in photographic products and processes.

REFERENCES:
patent: 3148061 (1964-09-01), Haas
patent: 3553180 (1971-01-01), Cleary
patent: 3698896 (1972-10-01), Abbott
patent: 3709690 (1973-01-01), Cohen
patent: 3758445 (1973-09-01), Cohen
patent: 3770439 (1973-11-01), Taylor
patent: 4009031 (1977-02-01), Carlson
patent: 4080346 (1978-03-01), Bedell
patent: 4190717 (1980-02-01), Suzuki

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