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:
Mar. 03, 1998
Filed:
Mar. 13, 1997
Applicant:
Inventors:
John D Bruhnke, Spartanburg, SC (US);
Steven E Brown, Spartanburg, SC (US);
Assignee:
Milliken Research Corporation, Spartanburg, SC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
252 73 ; 252 75 ; 252 77 ; 252 781 ; 8647 ;
Abstract
An antifreeze composition is provided having a polyhydric alcohol, a corrosion inhibitor and a colorant of the formula: ##STR1## wherein m and n are independently selected from 0, 1, 2 or 3; M is cation; A is SO.sub.3 M or SO.sub.2 R.sup.3, where R.sup.3 is alkylene-SO.sub.3 M; R.sup.1 is selected from the group consisting of hydroxy, C.sub.1-8 alkoxy, C.sub.1-8 alkyl, amino, sulfoxy, carboxy and R.sup.2 ; and R.sup.2 is NHR.sup.4, where R.sup.4 is triazine or triazine substituted with aminophenylsulfonate, chloro, dichloro, fluoro, or R.sup.2 is CO.sub.2 M.