Patent · US Active

Low dielectric constant glass fiber

US9556060B2 · kind B2 · utility

1Cited by

2References

4Claims

0Family size

Assignee

CHONGQING POLYCOMP INTERNATIONAL CORPORATION · CN

Inventors

Guoyun Yang · Chongqing, CN
Yuan Yao · Stanford, US
Cong Zhang · Shandong, CN
Haishen Liu · Chongqing, CN
Lixiong Han · Chongqing, CN

Key dates

Filing date	May 28, 2015
Grant date	Jan 31, 2017
Priority date	—
Expiry date	May 28, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C3/091
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A low dielectric constant glass fiber, in mass percentage, includes 50%˜60% of SiO2, 10%˜20% of Al2O3, 12%˜20% of B2O3, 0˜4% of CaO, 4%˜10% of MgO, 0.1%˜0.5% of Na2O+K2O, 0˜0.5% of Li2O, 0.2%˜3% of F2 and 0˜0.2% of Fe2O3. Compared with the related art, the glass composition contains higher content of SiO2, which can greatly reduce dielectric properties of the glass fiber. Meanwhile, a small amount of F2 is 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 Na2O+K2O are contained, which further reduces the dielectric properties of the glass fiber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.