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:
Nov. 14, 1989
Filed:
Apr. 08, 1988
Applicant:
Inventors:
Isao Joukou, Kanagawa, JP;
Ayako Sekikawa, Kanagawa, JP;
Hideo Sugi, Kanagawa, JP;
Kenji Tahara, Kanagawa, JP;
Assignee:
Kurita Water Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
512-2 ; 512-3 ; 512-4 ;
Abstract
A sustained release aromatic comprises a clathrate compound composed of a perfume and a polyphenyl compound and gives out fragrance slowly but steadily over a long period of time. It is produced by a process comprising melting under heat a perfume which is a solid at an ordinary room temperature, and adding a polyphenyl compound to the molten perfume. Alternatively, a perfume which is a liquid at an ordinary room temperature is mixed with a polyphenyl compound so that they may react with each other, and a solid reaction product is separated from their mixture.