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:
Aug. 11, 2015
Filed:
Apr. 11, 2014
Applicant:
Coloplast A/s, Humlebaek, DK;
Inventors:
Assignee:
Coloplast A/S, Humlebaek, DK;
Primary Examiner:
Int. Cl.
CPC ...
B29B 15/00 (2006.01); B29C 39/14 (2006.01); B29C 49/00 (2006.01); B29C 49/08 (2006.01); B29C 55/00 (2006.01); B29C 67/20 (2006.01); B29D 7/00 (2006.01); B29C 43/22 (2006.01); B29C 67/00 (2006.01); A61L 15/32 (2006.01); A61L 27/22 (2006.01); D01F 4/00 (2006.01); D04H 1/42 (2012.01); D04H 3/073 (2012.01); D04H 3/12 (2006.01); D04H 3/16 (2006.01); D01D 5/04 (2006.01); D01D 5/14 (2006.01); A61L 15/42 (2006.01); B29C 47/00 (2006.01); D04H 1/00 (2006.01); D04H 3/00 (2012.01); D04H 5/00 (2012.01); D04H 13/00 (2006.01);
U.S. Cl.
CPC ...
A61L 15/32 (2013.01); A61L 15/42 (2013.01); A61L 27/222 (2013.01); B29C 47/0004 (2013.01); D01D 5/04 (2013.01); D01D 5/14 (2013.01); D01F 4/00 (2013.01); D04H 1/42 (2013.01); D04H 3/00 (2013.01); D04H 3/073 (2013.01); D04H 3/12 (2013.01); D04H 3/16 (2013.01); D04H 13/00 (2013.01); B29K 2089/00 (2013.01); Y10T 428/2927 (2015.01); Y10T 428/2933 (2015.01);
Abstract
The present application discloses an alternative method for the formation of non-woven with fibers in the 1 to 200 μm range. Using an aqueous solution of gelatin (optionally with <30% of low molecular weight alcohol) the fibers are ejected utilizing pressurized air emitted from nozzle and the non-woven formed directly from the emitted thin fibers. The gelatin non-woven can be cross-linked by heat-treatment or chemical cross-linking, and the non-woven is biocompatible as measured by fibroblast growth in vitro and wound healing on pigs in vivo.