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:
Jul. 12, 1983
Filed:
May. 21, 1981
Atsunobu Takada, Yokohama, JP;
Yuzo Higaki, Machida, JP;
The Nisshin Oil Mills Limited, Tokyo, JP;
Abstract
Steroid ester is formed by the reaction between a carboxylic component and cholesterol or methylsterol having two methyl groups attached to the 4-position of the sterol skeleton. The carboxylic component is an .alpha.-branched carboxylic acid having a general formula: ##STR1## (where R.sup.1 is an alkyl group having at least two carbon atoms, and R.sup.2 is an alkyl group having at least four carbon atoms) or a reactive derivative of said .alpha.-branched carboxylic acid. The steroid ester is high in resistance to hydrolysis, exhibits an excellent water-embracing property and, thus, provides an effective oil phase material or base material of cosmetics or ointments.