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:
Aug. 31, 2021
Filed:
Oct. 11, 2018
Applicant:
Milliken & Company, Spartanburg, SC (US);
Inventors:
Dominick J. Valenti, Moore, SC (US);
Haihu Qin, Greer, SC (US);
Sanjeev K. Dey, Spartanburg, SC (US);
Assignee:
Milliken & Company, Spartanburg, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B 11/14 (2006.01); C09B 69/10 (2006.01); C09B 67/22 (2006.01); C11D 3/42 (2006.01); C11D 11/00 (2006.01);
U.S. Cl.
CPC ...
C09B 11/14 (2013.01); C09B 67/0034 (2013.01); C09B 69/10 (2013.01); C11D 3/42 (2013.01); C11D 11/0017 (2013.01);
Abstract
A method of making a triarylmethane leuco compound comprises reacting an aromatic aldehyde compound, a first oxyalkylenated aryl compound, and a second oxyalkylenated aryl compound in a condensation reaction in the presence of an acidic catalyst to produce the triarylmethane leuco compound. The first oxyalkylenated aryl compound is oxyalkylenated with ethylene oxide. The second oxyalkylenated aryl compound is oxyalkylenated with propylene oxide or with both ethylene oxide and propylene oxide.