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. 03, 1998
Filed:
Jun. 02, 1995
Applicant:
Inventors:
Wayne M Gibbons, Bear, DE (US);
Robert Paul Grasso, Wilmington, DE (US);
Michael Kevin O'Brien, Berwyn, PA (US);
Paul Joseph Shannon, Exton, PA (US);
Shao-Tang Sun, Newark, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ; G03C / ; G02B / ;
U.S. Cl.
CPC ...
43027011 ; 43027014 ; 385130 ; 526312 ; 350 9634 ; 350311 ; 252582 ; 252583 ; 252587 ;
Abstract
Organosilicon polymers, including crosslinked polymers and crosslinkable prepolymers, of cyclic polysiloxanes, organic dyes, and, optionally, polyenes. The dyes include those with delocalized Pi electron systems linking electron donor groups and electron acceptor groups, and with at least two carbon--carbon double bond-containing pendant groups attached to at least two different sites from among the indicated delocalized Pi electron systems, donor groups, and acceptor groups.