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.:
Date of Patent:
Jun. 03, 2014
Filed:
Feb. 15, 2010
Shinjiro Fujiwara, Amagasaki, JP;
Yoshisada Kayano, Nishinomiya, JP;
Peter-christian Rainer, Villach, AT;
Gernot Primosch, Villach, AT;
Shinjiro Fujiwara, Amagasaki, JP;
Yoshisada Kayano, Nishinomiya, JP;
Peter-Christian Rainer, Villach, AT;
Gernot Primosch, Villach, AT;
Shiraishi Kogyo Kaisha, Ltd., Osaka, JP;
Abstract
A calcium carbonate having a surface treated with a surface treating agent containing a sodium salt or a potassium salt of a fatty acid, the surface treating agent containing a sodium salt or a potassium salt of palmitic acid in an amount of PW in terms of acid, the surface treating agent containing a sodium salt or a potassium salt of stearic acid in an amount of SW in terms of acid, a total amount of PW and SW being PW+SW≧90, a ratio of PW to SW being 0.30≦PW/SW≦1.1, the surface-treated calcium carbonate having a BET specific surface area of SAof 15≦SA2≦48, and the sodium salt or the potassium salt of the fatty acid being used for the treatment in an amount of FA and a ratio (FA/SA) being 0.095≦FA/SA≦0.135.