Pro-fragrances containing certain acetals and/or ketals, which may be used in detergent compositions for imparting residual fragrances to surfaces washed with aqueous solutions of said detergent. The fragrance is released by hydrolyzation of the pro-fragrance 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 and in certain preferred pro-fragrance compounds, which are believed to be novel.
DETERGENT COMPOSITIONS CONTAINING FRAGRANCE PRECURSORS AND THE FRAGRANCE PRECURSORS THEMSELVES
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0888439A1
公开(公告)日:1999-01-07
US6239087B1
申请人:——
公开号:US6239087B1
公开(公告)日:2001-05-29
[EN] DETERGENT COMPOSITIONS CONTAINING FRAGRANCE PRECURSORS AND THE FRAGRANCE PRECURSORS THEMSELVES<br/>[FR] COMPOSITIONS DETERGENTES CONTENANT DES PRECURSEURS DE FRAGRANCE ET PRECURSEURS DE FRAGRANCE
申请人:THE PROCTER & GAMBLE COMPANY
公开号:WO1997034986A1
公开(公告)日:1997-09-25
(EN) 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.(FR) La présente invention concerne des compositions détergentes contenant certains acétals ou cétals qui s'hydrolysent à l'exposition de surfaces lavées dans une solution desdites compositions pour réduire le pH, libérant de ce fait une fragrance qui est caractéristique d'un ou plusieurs des produits d'hydrolyse. Les acétals et cétals font eux-mêmes partie de l'invention. Ils ont une masse moléculaire d'au moins environ 350, un ClogP d'environ 4 et une demi-vie de moins de 60 minutes lorsque celle-ci est mesurée à un pH = 0 par le test hydrolitique pro-fragrant.
Reactions of Long Chain Amines. V. Reactions with Sugars<sup>1,2</sup>