Gypsum based formulations

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United States of America Patent

PATENT NO 8916273
SERIAL NO

12598230

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Abstract

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The formulation for making plasterboard with paper cover sheets comprises finely divided gypsum, a minor amount by weight of starch and, as crosslinking agent for the starch, a tri-functional reactive s-triazine having substituents at positions 2, 4 and 6 of the triazine ring which are reactive with the starch. A preferred crosslinking agent is 2,4,6-trichloro-s-triazine, which is preferably partially reacted with the starch before further reaction with the paper cover sheets for the plaster board.

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Patent Owner(s)

Patent OwnerAddress
BPB LIMITEDBINLEY BUSINESS PARK SAINT-GOBAIN HOUSE COVENTRY CV3 2TT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chotard, Thierry Limoges Cedex, FR 3 4
Dupas, Cyrielle S Sarlat la canede, FR 2 2
Smith, Agnes Limoges Cedex, FR 3 18
Wilkes, Ian Staffordshire, GB 5 6

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