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. 06, 1990
Filed:
Nov. 09, 1987
Applicant:
Inventors:
Takashi Onouchi, Tokyo, JP;
Hironori Sugai, Yokohama, JP;
Kazuo Sekiguchi, Nagareyama, JP;
Yoshikazu Hosoda, Fujisawa, JP;
Eiichi Yoshida, Tokyo, JP;
Assignee:
Showa Denko K.K., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; B01J / ; C12N / ;
U.S. Cl.
CPC ...
42840222 ; 252-88 ; 25217412 ; 25217413 ; 252321 ; 252358 ; 252550 ; 252551 ; 252D / ; 252D / ; 424 943 ; 435182 ;
Abstract
Water-soluble microcapsules using a water-containing hydrophilic substance as a core material and at least one member selected from the group consisting of polyvinyl alcohol and modified polyvinyl alcohols as a coating material are stably retained in a concentrated aqeuous solution and are dissolved in water or a dilute aqueous solution.