Admixture for hydraulic cement

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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524424, C08K 322

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active

054896266

ABSTRACT:
A hydraulic cement composition comprising as an effective component a water-soluble amphoteric polymer obtained by Hofmann degradation reaction of an .alpha.,.beta.-unsaturated carbonamide polymer or a copolymer of .alpha.,.beta.-unsaturated carbonamide and an anionic monomer having a weight average molecular weight of 1,000-1,000,000.
The primary amino group produced as a result of the Hofmann degradation reaction provides excellent cement dispersing capabilities.

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