Process for preparing amidoalkanesulfonic acids polymers

Details Process for preparing amidoalkanesulfonic acids polymers Process for preparing amidoalkanesulfonic acids polymers

1985-08-23

1987-04-21

Henderson, Christopher

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...

524425, 524445, 524547, C08F 2802

Patent

active

046597735

ABSTRACT:
Disclosed is a novel process for preparing amidoalkanesulfonic acids of the general formula ##STR1## or derivatives thereof by reacting a nitrile compound (1) with a .beta.-hydroxyalkanesulfonic acid or a derivative thereof (2) in concentrated sulfuric acid.
Among the compounds of the general formula (3) and derivatives thereof, unsaturated amido- and phenyl-substituted alkanesulfonic acids and derivatives thereof (in particular, 2-acrylamido-2-phenylpropanesulfonic acid and derivatives thereof) represented by the general formula ##STR2## can be copolymerized with other monomers and the like to provide useful materials such as copolymer-coated solid materials, copolymer emulsions, pigment dispersants and the like.

REFERENCES:
patent: 3692673 (1972-09-01), Hoke

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