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:
Mar. 11, 2008
Filed:
Nov. 01, 2002
Hidemitsu Kasahara, Hyogo, JP;
Yuusuke Hayashi, Hyogo, JP;
Yoichi Takahashi, Hyogo, JP;
Seiya Shimizu, Hyogo, JP;
Shigeo Takiyama, Hyogo, JP;
Katsunori Fukumoto, Hyogo, JP;
Hidemitsu Kasahara, Hyogo, JP;
Yuusuke Hayashi, Hyogo, JP;
Yoichi Takahashi, Hyogo, JP;
Seiya Shimizu, Hyogo, JP;
Shigeo Takiyama, Hyogo, JP;
Katsunori Fukumoto, Hyogo, JP;
Maruo Calcium Company Limited, Akashi-shi, JP;
Abstract
The surface-treated calcium carbonate is disclosed which is surface-treated with an organic surface treating agent, said surface-treated calcium carbonate satisfies the particular BET specific surface area (Sw), reduced heat amount per unit specific surface area (As), average pore diameter (Dxp) at which an increased amount of mercury penetration reaches the maximum value in a method of mercury penetration, and amount of an average pore diameter [maximum value of an increased amount of mercury penetration (Dyp)/average pore diameter (Dxp)]. The surface-treated calcium carbonate of the present invention is particularly useful for resins and it not only improves adhesion of resin compositions to a subject to be adhered, but forms a rigid coating film when blended into resins.