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:
Sep. 05, 2006
Filed:
Feb. 26, 2003
Shaun Lawrence Herlihy, Chatham, GB;
Robert Stephen Davidson, Leicester, GB;
Brian Rowatt, Maidstone, GB;
Shaun Lawrence Herlihy, Chatham, GB;
Robert Stephen Davidson, Leicester, GB;
Brian Rowatt, Maidstone, GB;
Sun Chemical Corporation, , JP;
Abstract
Compounds of formula (I): [in which: Rrepresents a direct bond, an oxygen atom, a group >CH, a sulphur atom, a group >C═O, a group —(CH)— or a group of formula —N—R, where Ris hydrogen or an alkyl; R, R, Rand Rare each hydrogen or various groups or atoms; R, R, Rand Rare each hydrogen, hydroxy, or alkyl; or Rand Rform a fused ring system with the benzene rings to which they are attached; Ris a direct bond, oxygen atom or methylene; and Xis an anion; and esters thereof] are useful as cationic photoinitiators, especially for use in surface coating applications, such as printing inks and varnishes, and which are intended to be cured by polymerisation initiated by radiation.