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US 11,525,086 B2Granted
Paper sheet mulches and methods of making the same
AssigneeGPCP IP Holdings LLC
InventorsPaul J. Ruthven, Cary Q. Peterson, Jeffrey J. Faust
Life of this patent
Estimating the term…
Abstract
The present disclosure provides novel paper sheet mulch products having benefits over prior sheet mulches, which may include brown or recycled fibers, as well as additives, such as opacity, water-resistant, and strength additives, resulting in mulch products with an improved combination of basis weight, stretch, strength, opacity, and/or water-resistance characteristics.
Claims20
A paper sheet mulch comprising:
- at least about 75% cellulosic papermaking fibers based on the dry weight of the sheet, a basis weight of from about 25 lb/3000 ft2 to about 45 lb/3000 ft2, a machine-direction stretch of from about 10% to about 20%, and a machine-direction tensile strength of from about 6 lb/1 in to about 13 lb/1 in;
- wherein the paper sheet comprises at least one opacity modifier comprising one or more of carbon black, biochar, a pigment, a dye, clay, kaolin, titanium oxide, and combinations thereof;
- wherein the at least one opacity modifier is distributed substantially uniformly throughout the sheet;
- and wherein the opacity modifier is present in the paper sheet in an amount sufficient to impart an opacity of at least 95% to the paper sheet.
1 more element
Dependencies are inferred from the claim text.