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:
Mar. 22, 2016
Filed:
Jul. 26, 2012
Applicants:
Hiroki Taniguchi, Himeji, JP;
Hiroki Karakane, Himeji, JP;
Inventors:
Hiroki Taniguchi, Himeji, JP;
Hiroki Karakane, Himeji, JP;
Assignee:
DAICEL CORPORATION, Osaka-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24D 3/08 (2006.01); A24D 3/10 (2006.01); A24D 3/06 (2006.01); C08L 1/12 (2006.01); A24D 3/16 (2006.01); A24D 3/14 (2006.01);
U.S. Cl.
CPC ...
A24D 3/08 (2013.01); A24D 3/063 (2013.01); A24D 3/068 (2013.01); A24D 3/10 (2013.01); A24D 3/14 (2013.01); A24D 3/16 (2013.01); C08L 1/12 (2013.01);
Abstract
To provide a cigarette filter that can achieve both strength in a dry state and disintegration in a wet state, this cigarette filter has a filter plug containing a cellulose ester staple fiber, a pulp, and an alkali metal salt of a water-soluble anionic polymer. The filter plug has an alkali metal content of 2 to 100 μmol per gram of the filter plug. The water-soluble anionic polymer may include at least one member selected from the group consisting of a polyacrylic acid and a polysaccharide having a carboxyl group.