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:
Oct. 09, 1979
Filed:
Oct. 06, 1977
Applicant:
Inventor:
Ralph N Brendle, Inman, SC (US);
Assignee:
Milliken Research Corporation, Spartanburg, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 68 ; 260379 ;
Abstract
Refrigerants, refrigeration oils and refrigerant-refrigeration oil mixtures containing a substantially hydrophobic polyoxypropyleneamine substituted anthraquinone dyes having the structure ##STR1## wherein R is an alkylene moiety containing at least 1 carbon atom, R' is a member of the group consisting of NH.sub.2, OH, NCOR', OCOR' and OR' wherein R' is an alkyl moiety containing from 1 to about 18 carbon atoms, and wherein n is an integer having an average of at least about 6.