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. 16, 2015
Filed:
Sep. 06, 2011
Akihiro Gotou, Nagoya, JP;
Hideo Matsuzaki, Nagoya, JP;
Akihiro Gotou, Nagoya, JP;
Hideo Matsuzaki, Nagoya, JP;
TOAGOSEI., LTD., Tokyo, JP;
Abstract
The present invention relates to an additive for use in the molding of a ceramic material, which exhibits satisfactory water absorption performance in a ceramic green ceramic clay, can highly achieve both high fluidability and low loading performance during extrusion molding and high shape-retaining performance after extrusion at the same time, and comprises polymer microparticles. This additive for use in the molding of a ceramic material comprises polymer microparticles, is characterized in that the polymer microparticles have an average particle size between 10 and 150 μm when the polymer microparticles are swollen with ion exchange water until the swollen polymer microparticles reach a saturated state and can absorb 10-60 mL/g of ion exchange water under ordinary pressure, and is also characterized in that an aqueous dispersion prepared by dispersing 1 part by mass of the polymer microparticles in 110 parts by mass of ion exchange water has an electrical conductivity of 1500 μS/cm or less at 25° C.