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:
Jan. 30, 2018
Filed:
Dec. 18, 2015
Nitto Boseki Co., Ltd., Fukushima-shi, Fukushima, JP;
Takashi Nonaka, Fukushima, JP;
Norio Hirayama, Fukushima, JP;
Kazuaki Minami, Fukushima, JP;
Yosuke Nukui, Fukushima, JP;
Nitto Boseki Co., Ltd., Fukushima, JP;
Abstract
Provided is a glass composition for glass fiber allowing spinning to be stably performed without mixing of red foreign substances into glass fibers. The glass composition for glass fiber includes, in relation to the total amount thereof, SiOin a content falling within a range from 57.0 to 60.0% by mass, AlOin a content falling within a range from 17.5 to 20.0% by mass, MgO in a content falling within a range from 8.5 to 12.0% by mass, CaO in a content falling within a range from 10.0 to 13.0% by mass and BOin a content falling within a range from 0.5 to 1.5% by mass, the total content of SiO, AlO, MgO and CaO being 98.0% by mass or more.