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US Patent 6902821 Methods of preparing gypsum wallboards containing styrene butadiene latex additive

Patent 6902821 was granted and assigned to National Gypsum on June, 2005 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Patent Applicant

Current Assignee

National Gypsum

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

69028210

Patent Inventor Names

Richard J. Romanek0

Amba Ayambem0

Gopalakrishnan Sethuraman0

W. Roy Burke0

Date of Patent

June 7, 2005

Patent Application Number

103375630

Date Filed

January 7, 2003

Patent Primary Examiner

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Kelechi C. Egwim

Patent abstract

Gypsum wallboard compositions are disclosed which contain functionalized styrene butadiene latex polymers. Methods for the use of the compositions in the manufacture of wallboard panels and sheets is presented.

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