Title:
CERAMIC GREEN SHEET AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2009/104703
Kind Code:
A1
Abstract:
A ceramic slurry is produced using a urethane resin which has been produced from an isocyanate and a polyol in a ratio of from 1.5/11.5 to 11.5/11.5 in terms of the functional-group ratio of the polyol to the isocyanate and which has a repeating-unit molecular weight of 290-988. In the slurry production, various substances are mixed together. The urethane resin is added to a ceramic powder in such a proportion that the amount of the urethane resin is 4.5 to 10 parts by weight per 100 parts by weight of the ceramic powder. This ceramic slurry can provide a ceramic green sheet which has a satisfactory balance among all of the properties required of the ceramic green sheet (i.e., plasticity, punchability, suitability for densification, and (thermal) shrinkability) so that subsequent treatments such as processing and firing are facilitated.
Inventors:
KIMURA, Koji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
木村 浩二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
KIMURA, Takuji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
木村 拓二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
木村 浩二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
KIMURA, Takuji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
木村 拓二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
Application Number:
JP2009/052941
Publication Date:
August 27, 2009
Filing Date:
February 13, 2009
Export Citation:
Assignee:
NGK INSULATORS, LTD. (2-56, Suda-choMizuho-ku,Nagoya-shi, Aichi, 467-8530, JP)
日本碍子株式会社 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 Aichi, 46785, JP)
KIMURA, Koji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
木村 浩二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
KIMURA, Takuji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
日本碍子株式会社 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 Aichi, 46785, JP)
KIMURA, Koji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
木村 浩二 (〒30 愛知県名古屋市瑞穂区須田町２番５６号 日本碍子株式会社内 Aichi, 46785, JP)
KIMURA, Takuji (2-56,Suda-cho, Mizuho-k, Nagoya-shi Aichi, 467-8530, JP)
International Classes:
C04B35/632; B28B1/30; C08G18/08
Attorney, Agent or Firm:
PROSPEC PATENT FIRM (12th Floor, NAGOYA-KS Building1-18, Taiko 3-chome, Nakamura-k, Nagoya-shi Aichi, 453-0801, JP)