US Patent 7803225 Non-efflorescing cementitious mortar compositions

Patent 7803225 was granted and assigned to Wacker Chemie AG on September, 2010 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Wacker Chemie AG

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

78032250

Patent Inventor Names

Mingliang Zhang0

Jie Zhang0

Date of Patent

September 28, 2010

Patent Application Number

118179340

Date Filed

March 9, 2006

Patent Primary Examiner

‌

Robert D Harlan

Patent abstract

The invention provides a non-efflorescing cementitious mortar composition, free of reactive silica material, in the form of a dry-mortar composition or an aqueous mortar composition, comprisinga) ordinary portland cement,b) calcium aluminate cement,c) calcium sulfate, andd) an aqueous polymer dispersion or a water-redispersible polymer powder of polymers based on one or more monomers from the group consisting of vinyl esters, (meth)acrylates, vinyl aromatics, olefins, 1,3-dienes and vinyl halides and, if required, further monomers copolymerizable therewith.

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