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:
Feb. 02, 1982
Filed:
Mar. 07, 1980
Shigeki Komatsuzaki, Mito, JP;
Moriichi Sato, Hitachi, JP;
Agency of Industrial Science and Technology, Tokyo, JP;
Abstract
Freon stable heat transfer oil comprising polyol ester containing tris-(alkylphenyl) phosphite and benzotriazole ##STR1## or benzotriazole derivative ##STR2## in which R.sub.1 and R.sub.2 each represents a hydrogen atom or an alkyl group. It is desirable to add tris-(alkylphenyl) phosphite or tris-(phenyl) phosphite in an amount in the range between 0.02-5% by weight and to add benzotriazole or its derivative in an amount in the range between 0.02-1% by weight to the heat transfer oil.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile