Adhesive bonding and miscellaneous chemical manufacture – Methods – Plaster board making
Reexamination Certificate
2007-04-13
2011-10-11
Sells, James (Department: 1745)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Plaster board making
C428S688000
Reexamination Certificate
active
08034203
ABSTRACT:
Repulped fiber that has been treated with an aqueous solution of a caustic selected from sodium hydroxide, potassium hydroxide and sodium carbonate, is used to make wallboard paper that is used to make a gypsum wallboard having improved nail pulling strength compared to gypsum wallboard made with fiber wallboard paper that has not been treated with caustic.
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Weinberger Renee J.
Xu Yufeng
Novak Druce & Quigg LLP
Orlando Michael
Sahu Pradip K.
Sells James
United States Gypsum Company
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