Title:
MODIFIED CALCIUM CARBONATE, POLYMER COMPOSITION CONTAINING THE SAME AND PROCESS FOR PRODUCING THEM
Document Type and Number:
WIPO Patent Application WO/2004/009711
Kind Code:
A1
Abstract:
A modified calcium carbonate comprising calcium carbonate as a raw material and, superimposed on the surface thereof, (i) a silica layer, (ii) an organic acid layer constituted of at least one member selected from the group consisting of fatty acids, fatty acid salts, fatty acid esters, resin acids, resin acid salts and resin acid esters and (iii) a layer of silane coupling agent; and a polymer composition comprising the modified calcium carbonate.
Inventors:
TSUTSUI SHOICHI (JP)
ISHIDA HIROTSUGU (JP)
HOSOI KAZUYUKI (JP)
ISHIDA HIROTSUGU (JP)
HOSOI KAZUYUKI (JP)
Application Number:
PCT/JP2003/009152
Publication Date:
January 29, 2004
Filing Date:
July 18, 2003
Export Citation:
Assignee:
SHIRAISHI KOGYO KAISHA LTD (JP)
SHIRAISHI CENTRAL LAB CO LTD (JP)
TSUTSUI SHOICHI (JP)
ISHIDA HIROTSUGU (JP)
HOSOI KAZUYUKI (JP)
SHIRAISHI CENTRAL LAB CO LTD (JP)
TSUTSUI SHOICHI (JP)
ISHIDA HIROTSUGU (JP)
HOSOI KAZUYUKI (JP)
International Classes:
C08K9/02; C08K9/04; C08K9/06; C09C1/02; (IPC1-7): C09C1/02; C01F11/18; C08K9/06; C08L101/00
Domestic Patent References:
| WO1997040106A1 | 1997-10-30 |
Foreign References:
| EP0266247A1 | 1988-05-04 | |||
| JPS6072963A | 1985-04-25 | |||
| JPH1129319A | 1999-02-02 | |||
| US6194489B1 | 2001-02-27 | |||
| JPH05139728A | 1993-06-08 | |||
| JPH05214161A | 1993-08-24 | |||
| JPS5230852A | 1977-03-08 | |||
| JPS52117948A | 1977-10-03 |
Attorney, Agent or Firm:
Saegusa, Eiji (1-7-1 Doshomachi, Chuo-k, Osaka-shi Osaka, JP)
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