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:
Jul. 29, 2003
Filed:
Oct. 13, 1998
Applicant:
Inventors:
Henry W. Bonk, Wallingford, CT (US);
David Goldwasser, Chesterfield, MO (US);
Assignee:
Nike, Inc., Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/704 ; B29C 4/904 ; B29D 2/200 ; B32B 7/10 ; B32B 2/508 ;
U.S. Cl.
CPC ...
B29C 4/704 ; B29C 4/904 ; B29D 2/200 ; B32B 7/10 ; B32B 2/508 ;
Abstract
The present invention relates to membranes including a barrier layer which includes a blend of one or more aliphatic thermoplastic urethanes and one or more polar and partially crystalline materials. Under multi-layered embodiments, the barrier layer is laminated to at least one other layer formed from thermoplastic urethane, wherein the membranes are characterized in that hydrogen bonds are formed between the first layer of thermoplastic urethane and the second layer from the blend of aliphatic thermoplastic urethane and a copolymer of ethylene and vinyl alcohol.