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:
Feb. 18, 1997
Filed:
Mar. 06, 1995
Applicant:
Inventors:
Naoya Yabuuchi, Toyonaka, JP;
Tsuyoshi Imamura, Katano, JP;
Takahiro Mukae, Yawata, JP;
Keizou Ishii, Ashiya, JP;
Assignee:
Nippon Paint Co., Ltd., 0saka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
42721334 ; 264-47 ; 430137 ; 430138 ;
Abstract
A method of preparing microcapsules includes the steps of preparing a block polymer having a block of a hydrophobic repeating unit and a block of a hydrophilic repeating unit, and employing the block polymer as a protective colloid for preparing microcapsules in a nonaqueous medium by interfacial polymerization.