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:
May. 29, 2001
Filed:
Sep. 22, 1998
Applicant:
Inventors:
Hsiang Kuen Mao, Kobe, JP;
Joseph Paul Morelli, Cincinnati, OH (US);
Henry Cheng Na, Cincinnati, OH (US);
Robert Ya-Lin Pan, Kobe, JP;
Mark Robert Sivik, Fairfield, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/20 ; C11D 3/26 ; C11D 3/50 ;
U.S. Cl.
CPC ...
C11D 3/20 ; C11D 3/26 ; C11D 3/50 ;
Abstract
Detergent compositions containing certain acetals or ketals which hydrolyze upon exposure of surfaces washed in solution of said compositions to a reduction in pH, thereby releasing a fragrance which is characteristic of one or more of the hydrolysis products. The acetals and ketals themselves also form part of the invention; they have a molecular weight of at least about 350; a ClogP of about 4, and a half-life of less than 60 minutes when measured at pH=0 by the pro-fragrant hydrolysis test.