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:
Nov. 02, 2010
Filed:
Dec. 07, 2007
Justin J. Frederico, Yardley, PA (US);
Bharat Desai, Ringwood, NJ (US);
Michael J. Smith, Newtown, PA (US);
Michael P. Hinton, Richboro, PA (US);
Justin J. Frederico, Yardley, PA (US);
Bharat Desai, Ringwood, NJ (US);
Michael J. Smith, Newtown, PA (US);
Michael P. Hinton, Richboro, PA (US);
United Color Manufacturing, Inc., Newtown, PA (US);
Abstract
The present invention is directed to a mixture of at least two different alkylated phenolphthalein ester compounds. Specifically, the present invention is directed to a mixture of at least two different compounds of formula I: wherein Rrepresents a straight chain alkyl group having 1 to 11 carbon atoms; Rrepresents a hydrogen atom or a group of the formula C(O)Rwhere Ris a hydrogen atom or a straight chain alkyl group having 1 to 11 carbon atoms; X2-X5 independently represent hydrogen; X6-X13 is same or different, and represents hydrogen or a straight or branched chain alkyl group having 1 to 12 carbon atoms. It further relates to a marker composition containing said mixtures dissolved in a solvent.