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Title:
POROUS FILLER AND METHOD FOR PRODUCING THE SAME, AND POROUS FILLER SLURRY AND PAPER
Document Type and Number:
Japanese Patent JP2007284822
Kind Code:
A
Abstract:

To provide a porous filler prevented from the degradation of its aggregate structure in paper manufacturing process, having high bulking effect when mixed in paper, capable of increasing white paper opacity, paper surface strength and paper inside bond strength as well, and low in viscosity in a slurried state.

The porous filler comprises aggregates consisting of a silicon oxide and a metal compound, being 10-150 m2/g in specific surface area, 0.10-0.80 μm in pore size and 16-40 μm in average particle size, wherein the content of the metal compound is 0.08-8.0 mass% in terms of oxide based on 100 mass% of the silicon oxide.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
YAMAMOTO MANABU
WAKASA HIROYUKI
OKADA HITOSHI
Application Number:
JP2006113477A
Publication Date:
November 01, 2007
Filing Date:
April 17, 2006
Export Citation:
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Assignee:
OJI PAPER CO
International Classes:
D21H17/68; C01B33/26
Domestic Patent References:
JP2000007320A2000-01-11
JP2004176196A2004-06-24
JPH09176988A1997-07-08
JPH05311599A1993-11-22
JPH0597420A1993-04-20
JPH0891820A1996-04-09
JP2004250268A2004-09-09
JP2002274837A2002-09-25
JPH10226982A1998-08-25
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Masakazu Aoyama
Suzuki Mitsuyoshi
Noriko Yanai



 
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