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:
Apr. 19, 2011
Filed:
Mar. 05, 2009
Applicants:
Daisuke Taguchi, Chiyoda-ku, JP;
Ken Iruya, Chiyoda-ku, JP;
Seigo Kotera, Chiyoda-ku, JP;
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/02 (2006.01); D04H 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is an object of the present invention to provide a nonwoven fabric which is excellent in the heat resistance and the chemical resistance, of which the fiber diameter is small, which is excellent in the strength and of which the maximum pore diameter is small. A nonwoven fabric made of an ethylene/tetrafluoroethylene copolymer, characterized in that the nonwoven fabric is mutually fused continuous fibers of an ethylene/tetrafluoroethylene copolymer which has a melt viscosity of from higher than 100 to 1,500 Pa·s at 240° C.