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:
Jan. 13, 2004
Filed:
Oct. 10, 2000
Applicant:
Inventor:
Jon R. Butt, Sr., Woodstock, GA (US);
Assignee:
Schweitzer-Mauduit International, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 2/700 ;
U.S. Cl.
CPC ...
D21H 2/700 ;
Abstract
A process for increasing the wet tensile strength properties of a porous plug wrap paper for use in smoking articles is disclosed. The wet strength properties of the paper are increased by incorporating into the paper an alkyl ketene dimer and by applying a size containing polyvinyl alcohol to a surface of the paper. The wet strength properties of the paper can be increased without using cross-linking agents. Porous plug wrap papers made in accordance with the present invention can have a wet tensile strength retention of at least 20%.