Gypsum wallboard with improved nail pull strength and the...

Adhesive bonding and miscellaneous chemical manufacture – Methods – Plaster board making

Reexamination Certificate

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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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