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. 19, 2019
Filed:
Dec. 02, 2014
Applicant:
Claudio Cinquemani, Cologne, DE;
Inventor:
Claudio Cinquemani, Cologne, DE;
Assignee:
REIFENHAEUSER GMBH & CO, KG MASCHINENFABRIK, Troisdorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 13/53 (2006.01); A61F 13/15 (2006.01); A61L 15/42 (2006.01); A61L 15/22 (2006.01); D04H 3/007 (2012.01); D01D 5/08 (2006.01); D01D 5/088 (2006.01); D01D 5/247 (2006.01); D01D 5/34 (2006.01); D01F 1/08 (2006.01);
U.S. Cl.
CPC ...
A61F 13/53 (2013.01); A61F 13/15617 (2013.01); A61L 15/22 (2013.01); A61L 15/425 (2013.01); D01D 5/082 (2013.01); D01D 5/088 (2013.01); D01D 5/247 (2013.01); D01D 5/34 (2013.01); D01F 1/08 (2013.01); D04H 3/007 (2013.01); A61F 2013/530635 (2013.01); Y10T 428/2395 (2015.04);
Abstract
The invention relates to the use of a fleece composed of plastic filaments, in particular made of a thermoplastic, as a sustained-released system or as a storage system for at least one active substance, in particular for at least one active liquid. The filaments are spun using a spinneret, and the plastic material of the filaments is foamed so that pores are formed at least on the surface or in surface regions of the filaments and at least some of the pores are pores that are open outward, and at least some of the open pores are filled with the active substance, in particular with the active liquid.