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US 2013/0153166 A1Published application
Paper substrates useful in wallboard tape applications
AssigneeInternational Paper Company
InventorsStephen A. Buzza, Dennis W. Anderson, Yufeng Xu, Bruce Richard Mc Gaffin, Christopher Michael Wilson
Life of this patent
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Abstract
This invention relates to paper products and/or substrates suitable for being made and/or converted into wallboard tape; which also may be known as joint tape and/or drywall tape, having a pH of at least 7.0 and containing a plurality of cellulose fibers, a wet strength additive, an alkaline sizing agent, and an anionic promoter, as well as methods of making and using the same.
Claims24
A paper substrate, comprising
- a plurality of cellulose fibers,
- a wet strength additive, and
- an alkaline sizing agent,
- wherein said substrate has a pH of from 7.0 to 14.0.
1 more element
A paper substrate, comprising
- a plurality of cellulose fibers;
- a wet strength additive;
- an alkaline sizing agent;
- and
- optionally an anionic promoter, wherein
- said substrate has a pH of from 7.0 to 14.0;
- and
- said substrate has an internal bond of from about 25 to about 350 milli ft-lb/sq. in. as measured by TAPPI method 541.
5 more elements
Dependencies are inferred from the claim text.