Vapor-control agent with perfume absorbed on substrate

Details Vapor-control agent with perfume absorbed on substrate Vapor-control agent with perfume absorbed on substrate

A - Human Necessities

61

L

167/321

A61L 9/04 (2006.01)

Patent

CA 1144074

ABSTRACT A method for controlling the rate of evaporation or rate of release of a perfume from an absorbent sub- strate in a continous action air freshener comprising in- corporating into the perfume from 10 to 900% by weight based on the weight of the perfume of a vapor control agent selected from the group consisting of nonionic sur- factants having an average of from 1 to 5 moles of ethy- lene oxide per molecule, a compound having the structure: Image wherein m and n are intigers, the same or different, sel- ected from 1 to 4, and R is an alkyl group having from 12 to 18 carbon atoms, a compound having the structure: Image wherein m and n are intigers, the same or different, sel- ected from 1 to 4, and R is an alkyl group having from 12 to 18 carbon atoms, and mixtures thereof. The use of the above agents controls the rate of release of volatile per- fumes from absorbent substrates so as to prevent the pre- mature evaporation of the perfumes to provide acceptable product life.

352292

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