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:
Dec. 26, 2000
Filed:
Jul. 30, 1998
Applicant:
Inventors:
Keisuke Itakura, Hiratsuka, JP;
Misao Yagi, Hiratsuka, JP;
Assignee:
Takasago International Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428407 ;
Abstract
A gradual releasing capsule having large mechanical strength, a large grain size and excellent gradual-releasability and its production method are disclosed. The capsule comprises a polymer core body containing a hydrophobic oil and a shell body formed of a cured body with which the surface of the core body is covered. The capsule is produced by dripping a core body-forming composition containing a hydrophobic oil and a reactive monomer and a curable polymer-containing solution from a multiple nozzle into a coagulating solution to form a primary capsule and then polymerizing the reactive monomer in the primary capsule.