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:
Jul. 08, 1997
Filed:
Jun. 20, 1995
Applicant:
Inventor:
Robert Hume Duncan, Stockton on Tees, GB;
Assignee:
Tioxide Specialties Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ;
U.S. Cl.
CPC ...
523160 ; 523161 ; 524413 ;
Abstract
A printing ink comprises a polymeric binder, a solvent and an adhesion promoting agent which is the reaction product of a zirconium orthoester and ethyl acetoacetate in which the molar ratio of zirconium to ethyl acetoacetate is from 1:1 to 1:4. Preferably, the inks are based on nitrocellulose or an ester type modified cellulose. The inks have been found to have adhesion and heat stability properties similar to inks containing titanium acetylacetonate but the zirconium additives have a much reduced tendency to discolor the ink.