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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9422419 B1

PDFFull Text
Date of Patent:
Aug. 23, 2016

Filed:

Apr. 26, 2013

Surface-treated calcium carbonate filler, and curable resin composition containing the filler

Applicant:

Maruo Calcium Co., Ltd., Akashi-shi, JP;

Inventors:

Katsunori Fukumoto, Akashi, JP;

Yusuke Hayashi, Akashi, JP;

Shigeru Sakaguchi, Akashi, JP;

Tatsunari Yago, Akashi, JP;

Assignee:

MARUO CALCIUM CO., LTD., Akashi-shi, JP;

Attorney:

Kratz, Quintos & Hanson, LLP

Primary Examiner:

Susannah Chung

Assistant Examiner:

Robert T Butcher

Int. Cl.
CPC ...
C09C 1/02 (2006.01); B32B 27/28 (2006.01); C08K 9/04 (2006.01); C09C 3/08 (2006.01); C09J 123/22 (2006.01); C09J 183/04 (2006.01); C08L 101/00 (2006.01); C08L 83/04 (2006.01); C09K 3/10 (2006.01); C08K 3/26 (2006.01); C09J 133/06 (2006.01);
U.S. Cl.
CPC ...
C08K 9/04 (2013.01); C08L 83/04 (2013.01); C08L 101/00 (2013.01); C09C 1/02 (2013.01); C09C 1/021 (2013.01); C09C 3/08 (2013.01); C09J 123/22 (2013.01); C09J 183/04 (2013.01); C09K 3/1006 (2013.01); C09K 3/1018 (2013.01); C01P 2002/50 (2013.01); C01P 2006/10 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/22 (2013.01); C08K 2003/265 (2013.01); C09J 133/06 (2013.01); C09K 2200/0239 (2013.01); C09K 2200/0617 (2013.01); C09K 2200/0625 (2013.01);
Abstract

The surface-treated calcium carbonate filler having a floc structure is provided which can provide a curable resin composition which has a high thixotropic property, exerts a high elongation degree at a low modulus, and has such a restoring rate that a load to be applied onto an adherend is reduced particularly by mixing in the curable resin composition, and the curable resin composition containing the filler. The surface-treated calcium carbonate filler is comprised of a synthetic calcium carbonate which is surface-treated with a fatty acid-based organic material containing a fatty acid salt and has a floc structure, wherein a ratio Sr of the amount of a fatty acid salt for which a counter ion is of monovalent, and which is contained in surface-treating agents eluted as free materials when the surface-treated calcium carbonate is refluxed with ethanol, to the total amount of the surface-treating agents is 10 to 30 wt %, and a porosity Po at the time of the consolidation of the surface-treated calcium carbonate is 38 to 45 wt %.

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