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:
Feb. 01, 2005
Filed:
Aug. 04, 2000
Roger Edward Burrows, Kent, GB;
Shaun Lawrence Herlihy, Kent, GB;
Derek Ronald Illsley, Kent, GB;
Sun Chemical Corporation, Fort Lee, NJ (US);
Abstract
A multi-functional photoinitiator of formula (I)—()  (I)wherein Q is a heteroatom selected from Si, Ti, Zr and Sn or any two independently selected such heteroatoms linked by a covalent bond or a by C(preferably C) alkylene group, n is at least 2 and n+m=the functionality of Q, each Ris the same or different and is a non-photoinitiator group; each group PI is the same or different and is a photoinitiator group. Each —A— is the same or different and is selected from linking groups of formula —(A)—Z— wherein p has an average of from 1 to 10, preferably from 3 to 5 and the groups —A— are either (a) each independently selected from Calkyleneoxy groups; or (b) each independently selected from groups of formula —O—(CH)CO— wherein q is from 3 to 5, and Z is selected from —O—, —S— and —NR— where Ris Calkyl.