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. 10, 1991
Filed:
Nov. 18, 1988
Applicant:
Inventors:
Raymond W Angelo, Endwell, NY (US);
Jeffrey D Gelorme, Binghamton, NY (US);
Joseph P Kuczynski, Apalachin, NY (US);
William H Lawrence, Greene, NY (US);
Socrates P Pappas, Fargo, ND (US);
Logan L Simpson, Austin, TX (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C08G / ; C08G / ;
U.S. Cl.
CPC ...
556 64 ; 522 31 ; 522170 ; 430280 ; 430914 ; 562113 ; 568-6 ; 568 13 ; 568 18 ;
Abstract
Sulfonium salts of the formula: ##STR1## wherein Ar is a fused aromatic radical; R.sub.1 is a divalent organic bridge; each R.sub.2 and R.sub.3 individually is an alkyl, aryl, alkaryl, aralkyl or substituted aryl, provided thatn not more than one of R.sub.2 and R.sub.3 is alkyl; and A is a non-nucleophilic anion; use thereof and preparation thereof.