The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2012
Filed:
Mar. 23, 2010
Phuong V. Luu, Appleton, WI (US);
Steven L. Edwards, Fremont, WI (US);
David W. White, Clintonville, WI (US);
Brigitte K. Schauer, North Canton, OH (US);
Martin A. Hynnek, Appleton, WI (US);
Phuong V. Luu, Appleton, WI (US);
Steven L. Edwards, Fremont, WI (US);
David W. White, Clintonville, WI (US);
Brigitte K. Schauer, North Canton, OH (US);
Martin A. Hynnek, Appleton, WI (US);
Georgia-Pacific Consumer Products LP, Atlanta, GA (US);
Abstract
An absorbent paper sheet is treated with an aqueous wax dispersion such that the sheet includes a fused wax and emulsifier residue in an amount of from about 1 to about 20 weight percent of the sheet based on the combined weight of the fiber, wax residue and an emulsifier residue in the sheet. The fused wax emulsion operates to make at least one surface of the sheet laterally hydrophobic, exhibiting a moisture penetration delay of at least about 2 seconds and less than about 40 seconds as well as a typical contact angle with water at one minute of at least about 50 degrees. There is thus provided absorbent products which exhibit both absorbency and resistance to moisture penetration. The treated sheet further exhibits microbial barrier properties, impeding transfer of bacteria, for example, through the sheet. There are produced tissue products which resist moisture penetration from propelled liquids as well as sequester sorbed liquids in the interior of the tissue.