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:
Mar. 23, 1982
Filed:
May. 21, 1979
Edward J Martens, III, Racine County, WI (US);
Phillip J Neumiller, Racine County, WI (US);
S. C. Johnson & Son, Inc., Racine, WI (US);
Abstract
A method for controlling the rate of evaporation or rate of release of a perfume from an absorbent substrate in a continuous action air freshener comprising incorporating 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 surfactants having an average of from 1 to 5 moles of ethylene oxide per molecule, a compound having the structure: ##STR1## wherein m and n are integers, the same or different, selected from 1 to 4, and R is an alkyl group having from 12 to 18 carbon atoms, a compound having the structure: ##STR2## wherein m and n are integers, the same or different, selected 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 perfumes from absorbent substrates so as to prevent the premature evaporation of the perfumes to provide acceptable product life.