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. 07, 2011
Filed:
Mar. 06, 2008
Aya Shirai, Tokyo, JP;
Mitsutoshi Nakamura, Tokyo, JP;
Tatsuya Nagase, Tokyo, JP;
Motoi Nishimura, Tokyo, JP;
Aya Shirai, Tokyo, JP;
Mitsutoshi Nakamura, Tokyo, JP;
Tatsuya Nagase, Tokyo, JP;
Motoi Nishimura, Tokyo, JP;
Konica Minolta Business Technologies, Inc., Tokyo, JP;
Abstract
Disclosed is a method of preparing hollow particles comprising polymerizing a hydrophobic monomer to form a particulate resin exhibiting a number average molecular weight of from 20,000 to 500,000, dispersing the particulate resin in an aqueous medium to form a resin particle dispersion and adding thereto a hydrophobic cross-linkable monomer in an amount of from 0.1 to 50 parts by mass based on 1 part by mass of the particulate resin to polymerize the cross-linkable monomer to form hollow particles.