Synthesis and use of gypsum seeding material

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United States of America Patent

PATENT NO 9416021
APP PUB NO 20150114268A1
SERIAL NO

14399604

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Abstract

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The invention relates to a process for producing calcium sulphate dihydrate by reacting a water-soluble calcium compound with a water-soluble sulphate compound in the presence of water and a polymer containing acid groups, wherein the polymer containing acid groups comprises specific polyether groups. Additionally disclosed are calcium sulphate dihydrate producible by the process according to the invention, and the use thereof for production of gypsum plasterboard.

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Patent Owner(s)

Patent OwnerAddress
BASF CONSTRUCTION SOLUTIONS GMBH83308 TROSTBERG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bräu, Michael Shanghai, CN 3 1
Dierschke, Frank Oppenheim, DE 15 76
Gehrig, Uwe St. Georgen, DE 16 76
Loges, Niklas Pittenhart, DE 5 5
Nicoleau, Luc Altenmarkt, DE 21 148
Schinabeck, Michael Altenmarkt, DE 30 286

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