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:
Apr. 20, 2010
Filed:
Nov. 06, 2006
Keiji Sekine, Tokyo, JP;
Keiji Sekine, Tokyo, JP;
Asahi Fiber Glass Company, Limited, Tokyo, JP;
Abstract
A glass filler for a polycarbonate resin, whereby the refractive index of the glass filler can be improved to the same level as a polycarbonate resin, and the transparency of a molded product after reinforced with such a filler can be maintained without coloration, and a polycarbonate resin composition employing such a filler, are provided. The polycarbonate resin composition comprises a polycarbonate resin and a glass filler which comprises, as inorganic components in the entire glass filler, from 50 to 60 mass % of silicon dioxide (SiO), from 7 to 15 mass % of aluminum oxide (AlO), from 10 to 20 mass % of calcium oxide (CaO), from 0 to 5 mass % of magnesium oxide (MgO), from 2 to 8 masse of zirconium is oxide (ZrO), from 0 to 10 mass % of zinc oxide (ZnO), from 0 to 10 mass % of strontium oxide (SrO), from 0 to 18 mass % of barium oxide (BaO), from 0 to 2 mass % of lithium oxide (LiO), from 0 to 2 mass % of sodium oxide (NaO), and from 0 to 2 mass % of potassium oxide (KO), provided that the total content of the lithium oxide (LiO), the sodium oxide (NaO) and the potassium oxide (KO) is from 0 to 2 mass % based on the entire glass filler.