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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.:

US 10023708 B1

PDFFull Text
Date of Patent:
Jul. 17, 2018

Filed:

Nov. 23, 2012

Method of producing a delivery device

Applicant:

Ptt Holding Aps, Lyngby, DK;

Inventors:

Martin Alm, Greve, DK;

Søren Langer Steffensen, København NV, DK;

Assignee:

PTT HOLDING APS, Lyngby, DK;

Attorney:

Buchanan Ingersoll & Rooney P.C.

Primary Examiner:

Matthew P Coughlin

Int. Cl.
CPC ...
C08J 7/02 (2006.01); A61K 47/32 (2006.01); A61K 47/34 (2017.01); A61K 31/415 (2006.01); A61K 45/06 (2006.01); A61K 9/00 (2006.01); A61K 9/70 (2006.01); A61L 27/18 (2006.01); A61L 27/54 (2006.01); A61L 29/06 (2006.01); A61L 29/16 (2006.01);
U.S. Cl.
CPC ...
C08J 7/02 (2013.01); A61K 9/0014 (2013.01); A61K 9/0051 (2013.01); A61K 9/70 (2013.01); A61K 9/7007 (2013.01); A61K 31/415 (2013.01); A61K 45/06 (2013.01); A61K 47/32 (2013.01); A61K 47/34 (2013.01); A61L 27/18 (2013.01); A61L 27/54 (2013.01); A61L 29/06 (2013.01); A61L 29/16 (2013.01); C08J 2300/208 (2013.01); C08J 2383/04 (2013.01); C08J 2433/14 (2013.01);
Abstract

A method of producing a delivery device for delivering a chemical compound includes i) providing an interpenetrating polymer substrate (IP substrate) having a first continuous polymer comprising rubber and a second polymer having hydrogel or a hydrogelable precursor, where the second polymer is interpenetrating in the first polymer; ii) providing the chemical compound and a loading solvent for the chemical compound; and iii) loading the IP substrate with the chemical compound by subjecting the IP substrate to the loading solvent having the chemical compound under conditions where the loading solvent at least partially swells the second polymer. The chemical compound, the second polymer and the loading solvent are selected such that the work of adhesion (W) between the second polymer and the chemical compound during at least a part of the loading is at least about 0 J/m.

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