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:
Nov. 25, 2003
Filed:
Jul. 23, 1998
Other;
Abstract
A transparent and flexible composite membrane produced from two immiscible polymers. The first polymer is a polymeric fibrous network with interconnecting pores. The second polymer is an elastomer with a refractive index matching the first polymer. The resultant composite membrane is a transparent interpenetrated network of polymers with an altered molecular structure, and mechanical strength superior to the parent polymers. A method of producing the new composite membrane involves dissolving the elastomer in a suitable solvent to form a diluted elastomeric solution, impregnating the polymeric membrane with the elastomer by adding the diluted elastomeric solution to the membrane to form a wet composite membrane, and then drying the wet composite membrane to form an interpenetrated membrane.