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:
Sep. 09, 1986
Filed:
Sep. 06, 1984
Applicant:
Inventors:
Yuriko Igarashi, Iwaki, JP;
Masaaki Takahashi, Tokyo, JP;
Assignee:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B32B / ;
U.S. Cl.
CPC ...
42840221 ; 71DI / ; 2525 / ; 264-47 ; 424 19 ; 424 32 ; 525936 ;
Abstract
Disclosed herein are microcapsules containing a hydrophobic, volatile substance as the core substance, a wall membrane of the microcapsule comprising a polymer made by interfacial polymerization of a polyvalent isocyanate with a water-soluble cationic urea resin and/or a prepolymer of aminoresin, and a resin made by polycondensing the water-soluble cationic urea resin with the prepolymer of aminoresin in the presence of a low-molecular anionic surfactant, and a process for producing the microcapsules.