The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 23, 2014
Filed:
Oct. 19, 2009
Agnes Smith, Limoges Cedex, FR;
Thierry Chotard, Limoges Cedex, FR;
Cyrielle S. Dupas, Sarlat la canede, FR;
Ian Wilkes, Staffordshire, GB;
Agnes Smith, Limoges Cedex, FR;
Thierry Chotard, Limoges Cedex, FR;
Cyrielle S. Dupas, Sarlat la canede, FR;
Ian Wilkes, Staffordshire, GB;
BPB Limited, , GB;
Abstract
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.