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. 02, 2021
Filed:
Oct. 23, 2015
Lubrizol Advanced Materials, Inc., Cleveland, OH (US);
Nancy S. Marchant, Medina, OH (US);
Pallavi Kulkarni, Woburn, MA (US);
Anthony J. Walder, Essex, MA (US);
Paul M. Basone, Akron, OH (US);
Shawn Lankowski, Danvers, MA (US);
Juan Cebrián Puche, Gava, ES;
Sandra Mendez, Gava, ES;
Mireia Martin, Gava, ES;
Other;
Abstract
A polymer film suited to use as a face mask or transdermal patch includes at least 30 wt. % of a thermoplastic polyurethane polymer which is the reaction product of a first polyether polyol having a molecular weight of at least 3000 daltons, optionally, a second polyether polyol having a molecular weight of no more than 2500 daltons, at least one of a third polyol having a molecular weight of up to 800 daltons, and a chain extender, a diisocyanate, optionally, a catalyst. The film includes up to 5 wt. % water.