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:
Dec. 12, 2006
Filed:
May. 11, 2004
Applicant:
John Frederick Porter, St. Catharines, CA;
Inventor:
John Frederick Porter, St. Catharines, CA;
Assignee:
Saint-Gobain Technical Fabrics Canada, Ltd., Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/26 (2006.01); B32B 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a composite sheet material that is water vapor permeable and substantially liquid water impermeable. The composite sheet material includes an outer layer, a film, and a reinforcing layer and, preferably, has an ASTM D3833 water vapor transmission rate of greater than 250 g/m/day, and a tensile strength of at least about 100 N/5 cm when tested in accordance with ASTM D5035. The sheet material is useful as a membrane for roofing, housewrap, insulation facing and in the fabrication of protective apparel.