Title:
セラミックス原料組成物
Document Type and Number:
Japanese Patent JP5263112
Kind Code:
B2
Abstract:
A ceramic material composition comprising from 20 to 50 mass% of a borosilicate glass powder, from 25 to 55 mass% of an alumina filler powder and from 10 to 45 mass% of a filler powder (a high refractive index filler powder) having a refractive index higher than the alumina filler powder, wherein the borosilicate glass powder comprises, as calculated as oxides, from 30 to 70 mass% of SiO 2 , from 5 to 28 mass% of B 2 O 3 , from 5 to 30 mass% of Al 2 O 3 , from 3 to 35 mass% of CaO, from 0 to 25 mass% of SrO, from 0 to 25 mass% of BaO, from 0 to 10 mass% of Na 2 O, from 0 to 10 mass% of K 2 O, from 0.5 to 10 mass% of Na 2 O+K 2 O and from 3 to 40 mass% of CaO+SrO+BaO, and satisfies the following conditions:
in the borosilicate glass powder, as represented by mass%, the value of "three times the B 2 O 3 content" + "twice (the CaO content+the SrO content+the BaO content)" + "ten times (the Na 2 O content+the K 2 O content)", is within a range of from 105 to 165.
Inventors:
Kenji Imakita
Toshihisa Okada
Kazuo Watanabe
Toshihisa Okada
Kazuo Watanabe
Application Number:
JP2009233562A
Publication Date:
August 14, 2013
Filing Date:
October 07, 2009
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C04B35/18; C03C10/06; C03C14/00; C04B35/00; H01L33/64
Domestic Patent References:
| JP2007129191A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office