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. 31, 2017
Filed:
May. 28, 2015
Chongqing Polycomp International Corporation, Chongqing, CN;
Guoyun Yang, Chongqing, CN;
Yuan Yao, Chongqing, CN;
Cong Zhang, Chongqing, CN;
Haishen Liu, Chongqing, CN;
Lixiong Han, Chongqing, CN;
CHONGQING POLYCOMP INTERNATIONAL CORPORATION, Chongqing, CN;
Abstract
A low dielectric constant glass fiber, in mass percentage, includes 50%˜60% of SiO, 10%˜20% of AlO, 12%˜20% of BO, 0˜4% of CaO, 4%˜10% of MgO, 0.1%˜0.5% of NaO+KO, 0˜0.5% of LiO, 0.2%˜3% of Fand 0˜0.2% of FeO. Compared with the related art, the glass composition contains higher content of SiO, which can greatly reduce dielectric properties of the glass fiber. Meanwhile, a small amount of Fis added thereto, which not only can effectively improve the fiberizing temperature of the glass fiber but also can reduce glass viscosity and density and reduce glass refractive index and dielectric properties. In addition, lower content of CaO is further contained, but almost no alkali metal particles such as NaO+KO are contained, which further reduces the dielectric properties of the glass fiber.