Gypsum products utilizing a two-repeating unit dispersant and a method for making them

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United States of America Patent

PATENT NO 7637996
APP PUB NO 20080009566A1
SERIAL NO

11893791

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Abstract

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A gypsum slurry includes water, a hydraulic component including stucco and a polycarboxylate dispersant. The dispersant has two repeating units wherein the first repeating unit is an olefinic unsaturated mono-carboxylic acid repeating unit or an ester or salt, and the second repeating unit is a vinyl or allyl group bound to a polyether by an ether linkage. The slurry can be made into a gypsum panel.

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Patent Owner(s)

Patent OwnerAddress
UNITED STATES GYPSUM COMPANY550 WEST ADAMS STREET CHICAGO IL 60661

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blackburn, David R Barrington, US 32 687
Liu, Qingxia Vernon Hills, US 43 1466
Shake, Michael P Johnsburg, US 38 1002

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