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:
Dec. 20, 1994
Filed:
May. 28, 1993
John M Behan, Kennington, Ashford, Kent, GB;
Jeremy N Ness, Chartham, Canterbury, Kent, GB;
Petrus C Traas, 1411 HK Naarden, NL;
Joannis S Vitsas, 1402 TX Bussum, NL;
Brian J Willis, Tyler Hill, Canterbury, Kent, GB;
Other;
Abstract
The invention concerns clear o/w microemulsions comprising a perfume oil, an aqueous phase and one or more surfactants with HLB between 9 and 18, and co-surfactants of which at least 0.5% of ionic co-surfactant. The weight ratio of perfume oil to total surfactant is between 0.85 and 2.5, and preferably above 1. The quantity of perfume oil is 0.01-40% w/w, preferably below 35%, of the microemulsion and the quantity of water at least 40% w/w, preferably at least 50%. The microemulsions comprise less than 10% preferably less than 5%, of alcohol. The surfactants are preferably of the nonionic type. The microemulsions are very suitable for perfuming purposes where the amount of organic solvents should preferably be kept to a minimum, such as for perfuming skin or hair. The invention also concerns surfactant/perfume mixtures suitable for preparing the clear o/w microemulsions.