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:
Jun. 17, 2008
Filed:
Jul. 20, 2006
Munehiro Yamada, Nishinomiya, JP;
Nobuhiko Shizuka, Nishinomiya, JP;
Michimasa Memita, Amagasaki, JP;
Hiroko Miyashita, Tokyo, JP;
Munehiro Yamada, Nishinomiya, JP;
Nobuhiko Shizuka, Nishinomiya, JP;
Michimasa Memita, Amagasaki, JP;
Hiroko Miyashita, Tokyo, JP;
NOF Corporation, , JP;
Abstract
A refrigeration lubricant composition comprises an ester obtained from a mixed alcohol and a mixed carboxylic acid as a main component. The mixed alcohol comprises 65 to 99.95 mol % of pentaerythritol and 0.05 to 35 mol % of dipentaerythritol, the mixed carboxylic acid comprises 25 to 55 mol % of monocarboxylic acid having 5 to 8 carbon atoms and 45 to 75 mol % of isononanoic acid, and the composition has a hydroxyl value of 5.0 mgKOH/g or less and an acid value of 0.05 mgKOH/g or less.