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:
Sep. 24, 2019
Filed:
Feb. 25, 2016
Applicant:
Nichias Corporation, Tokyo, JP;
Inventors:
Akihiro Nakashima, Tokyo, JP;
Kazutoshi Isomura, Tokyo, JP;
Hiroki Nakamura, Tokyo, JP;
Yuki Takeda, Tokyo, JP;
Assignee:
NICHIAS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/28 (2006.01); D04H 1/4209 (2012.01); D04H 1/587 (2012.01); D21H 13/36 (2006.01); D21H 17/37 (2006.01); D04H 1/64 (2012.01); F01N 3/10 (2006.01); F01N 3/021 (2006.01);
U.S. Cl.
CPC ...
D04H 1/4209 (2013.01); D04H 1/587 (2013.01); D04H 1/64 (2013.01); D21H 13/36 (2013.01); D21H 17/37 (2013.01); F01N 3/0211 (2013.01); F01N 3/10 (2013.01); F01N 3/2828 (2013.01); F01N 3/2835 (2013.01); F01N 3/2839 (2013.01); F01N 3/2842 (2013.01); F01N 3/2853 (2013.01); F01N 3/2871 (2013.01); F01N 2330/06 (2013.01); F01N 2350/04 (2013.01); F01N 2450/02 (2013.01); Y02T 10/20 (2013.01);
Abstract
A holding material including: inorganic fibers that include 70 wt % or more of an alumina component an organic binder other than polyacrylamide of which the surface is negatively charged, alumina sol, and polyacrylamide having a weight-average molecular weight of 3,000,000 to 6,000,000, wherein the amount of the alumina sol is 2 to 8 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers, and the amount of the polyacrylamide is 0.01 to 1.0 parts by weight relative to 100 parts by weight of the amount of the inorganic fibers.