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:
Apr. 03, 2007
Filed:
Oct. 14, 2003
Seiya Shimizu, Hyogo, JP;
Hiroshi Shibata, Hyogo, JP;
Seiya Shimizu, Hyogo, JP;
Hiroshi Shibata, Hyogo, JP;
Maruo Calcium Company Limited, Akashi, JP;
Abstract
An agglomerate comprising fine primary particles of an inorganic compound except for silica is provided, satisfying dp: the average particle diameter [μm] of the agglomerate measured by Microtrac-FRA, a laser analysis type particle size distribution measurement apparatus, α: the value calculated by dividing the difference between the particle diameter dof cumulative 90% minus sieve particles of the agglomerate and the particle diameter dof cumulative 10% minus sieve particles of the agglomerate calculated by the Microtrac-FRA, Sw: the BET specific surface area [m/g] of the agglomerate, St: the tensile strength [MPa] required to break the agglomerate with the particle diameter 4 μm, and, Sta: the tensile strength [MPa] required to break 30% of the particle diameter of the agglomerate with the particle diameter 4 μm, both St and Sta being measured by a micro compression testing machine manufactured by Shimadzu Corporation. The agglomerate of the present invention provides a resin composition excellent in the anti-blocking property and the stretching resistance property.