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:
Sep. 07, 2015
Filed:
Feb. 05, 2013
A.v. Topchiev Institute of Petrochemical Synthesis, Moscow, RU;
Corium International, Inc., Menlo Park, CA (US);
Olga N. Emanuel, Moscow, RU;
Mikhail M. Feldstein, Moscow, RU;
Nicolai A. Platè, Moscow, RU;
Anatoly E. Chalykh, Moscow, RU;
Gary W. Cleary, Los Altos Hills, CA (US);
A.V. Topchiev Institute of Petrochemical Synthesis, Moscow, RU;
Corium International, Inc., Menlo Park, CA (US);
Abstract
A method for preparing hydrophilic pressure sensitive adhesive (PSA) compositions is provided, wherein the method enables preparation of adhesives having a particular, optimized degree of adhesion. That is, the hydrophilic PSA is comprised of a hydrophilic polymer and a complementary short-chain plasticizing agent, wherein the hydrophilic polymer and plasticizing agent are capable of hydrogen bonding or electrostatic bonding to each other and are present in a ratio that optimizes key characteristics of the adhesive composition, such as adhesive strength, cohesive strength and hydrophilicity. The adhesive is useful in a wide variety of contexts, e.g., as a biomedical adhesive for application to the skin or other body surface, and as such finds utility in the areas of drug delivery systems (e.g., topical, transdermal, transmucosal, iontophoretic), medical skin coverings and wound healing products and biomedical electrodes.