Title:
ORGANIC-INORGANIC COMPOSITE FILLER, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2013/039169
Kind Code:
A1
Abstract:
The present invention discloses an organic-inorganic composite filler that contains: inorganic aggregate particles formed by the aggregation of inorganic primary particles with an average particle diameter of 10 to 1000 nm; a cured polymer of a polymerizable monomer wherein the surfaces of the inorganic primary particles are covered and the inorganic primary particles are bonded to each other; organic resin phases containing a water-absorbable resin; and aggregation gaps having a volume of micropores, which form between the organic resin phases, of 0.01 to 0.30 cm3/g in pore volume measurements at a pore diameter range of 1 to 500 nm, as measured by the mercury intrusion technique. In a cross section through which the centers of the inorganic aggregate particles pass, using 100 measured inorganic particles as a benchmark, there are less than ten inorganic aggregate particles having macro voids with a maximum width of at least 1 μm. The present invention also discloses a method for producing the organic-inorganic composite filler.
More Like This:
| JPH03243675 | URETHANE-BASED RESIN COMPOSITION FOR COATING |
| JPS6289773 | OPTICAL COATING COMPOSITION |
| JPS61238805 | THERMOSETTING RESIN COMPOSITION AND CURED PRODUCT THEREOF |
Inventors:
YAMAZAKI TATSUYA (JP)
AKIZUMI HIRONOBU (JP)
AKIZUMI HIRONOBU (JP)
Application Number:
PCT/JP2012/073516
Publication Date:
March 21, 2013
Filing Date:
September 13, 2012
Export Citation:
Assignee:
TOKUYAMA DENTAL CORP (JP)
YAMAZAKI TATSUYA (JP)
AKIZUMI HIRONOBU (JP)
YAMAZAKI TATSUYA (JP)
AKIZUMI HIRONOBU (JP)
International Classes:
C08F2/44; A61K6/083; C08F292/00; C08K9/04; C08L101/00
Domestic Patent References:
| WO2011115007A1 | 2011-09-22 |
Foreign References:
| JP2008037952A | 2008-02-21 | |||
| JP2000080013A | 2000-03-21 | |||
| JP2000080013A | 2000-03-21 | |||
| JP2008037952A | 2008-02-21 | |||
| JP2011055757W | 2011-03-11 | |||
| JPS58110414A | 1983-07-01 | |||
| JPS58151321A | 1983-09-08 | |||
| JPS58156524A | 1983-09-17 | |||
| JPS58156526A | 1983-09-17 | |||
| JPS4943395B1 | 1974-11-20 |
Other References:
See also references of EP 2757112A4
Attorney, Agent or Firm:
TAKAHATA Yasuyo et al. (JP)
Yasuyo Takahata (JP)
Yasuyo Takahata (JP)
Download PDF:
Claims: