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. 23, 2024
Filed:
Sep. 28, 2018
Applicant:
Nippon Sheet Glass Company, Limited, Tokyo, JP;
Inventors:
Assignee:
NIPPON SHEET GLASS COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 13/00 (2006.01); C03B 37/01 (2006.01);
U.S. Cl.
CPC ...
C03C 13/00 (2013.01); C03B 37/011 (2013.01); C03C 2213/00 (2013.01);
Abstract
A glass fiber according to the present invention is suitable for preventing filament breakage and suitable for being stably produced for a long term, and has a ß-OH value of 0.02 mmor more and less than 0.55 mm. The preferred content of SOis more than 0 ppm and 70 ppm or less on a mass basis. The glass fiber is preferably substantially free of As and Sb. SOcan be supplied to a glass raw material as, for example, a sulfuric acid salt of an alkali metal or an alkaline-earth metal.