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:
Jan. 03, 2006
Filed:
Jul. 01, 2003
Jon Kirk Smith, Marion, MA (US);
Zongzheng Liu, Fall River, MA (US);
Murugappa Vedachalam, Raynham, MA (US);
David Compton, Waquoit, MA (US);
Jon Kirk Smith, Marion, MA (US);
Zongzheng Liu, Fall River, MA (US);
Murugappa Vedachalam, Raynham, MA (US);
David Compton, Waquoit, MA (US);
ISP Investments Inc., Wilmington, DE (US);
Abstract
A process of making D-panthenyl triacetate which includes reacting D-panthenol with acetic anhydride in the presence of the catalyst polymer bound dimethylaminopyridine to form an exothermic mixture. The so-produced acetic acid, and the catalyst are removed from the exothermic mixture which is then neutralized with sodium hydroxide. Sodium acetate in the form of a solid is removed by filtration. The D-panthenyl triacetate is useful in cosmetic compositions.