Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 27, 2012
Patent Application Number
13027944
Date Filed
February 15, 2011
Patent Citations Received
0
Patent Primary Examiner
Patent abstract
The invention provides a set gypsum-containing product having increased resistance to permanent deformation and a method for preparing it comprising forming a mixture of a calcium sulfate material, water, and an appropriate amount of one or more enhancing materials chosen from condensed phosphoric acids, each of which comprises 2 or more phosphoric acid units; and salts or ions of condensed phosphates, each of which comprises 2 or more phosphate units. The mixture is then maintained under conditions sufficient for the calcium sulfate material to form a set gypsum material.
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