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:
Dec. 29, 2015
Filed:
Oct. 06, 2009
Applicant:
Stephen Law, Nuneaton, GB;
Inventor:
Stephen Law, Nuneaton, GB;
Assignee:
SPECIALITY FIBRES AND MATERIALS LTD., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L 15/28 (2006.01); C08L 1/28 (2006.01); C08B 11/04 (2006.01); C08B 11/10 (2006.01); C08B 37/08 (2006.01); C08B 37/00 (2006.01); C08L 5/04 (2006.01); C08L 5/08 (2006.01); D04H 1/42 (2012.01); D04H 1/425 (2012.01); D04H 1/4258 (2012.01); D04H 1/46 (2012.01); D04H 1/736 (2012.01);
U.S. Cl.
CPC ...
C08L 1/28 (2013.01); A61L 15/28 (2013.01); C08B 11/04 (2013.01); C08B 11/10 (2013.01); C08B 37/003 (2013.01); C08B 37/0084 (2013.01); C08L 1/286 (2013.01); C08L 5/04 (2013.01); C08L 5/08 (2013.01); D04H 1/42 (2013.01); D04H 1/425 (2013.01); D04H 1/4258 (2013.01); D04H 1/46 (2013.01); D04H 1/736 (2013.01); C08L 2205/16 (2013.01);
Abstract
This invention relates to absorbent materials useful in the manufacture of absorbent articles, in particular dressings for the advanced wound care market. The absorbent materials of the present invention are sulfonated polysaccharides, particularly water-insoluble cellulose alkyl sulfonates in which the cellulose is substituted by one type of alkyl sulfonate group. The invention also provides a process for the manufacture of such materials. The preferred cellulose alkyl sulfonate described herein is cellulose ethyl sulfonate. Reinforcing fibers and/or antimicrobial agents are optionally applied to the cellulose alkyl sulfonate.