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:
Dec. 01, 1998
Filed:
Jul. 29, 1997
Klaus Juergen Przybilla, Frankfurt, DE;
Takanori Kudo, Saitama, JP;
Seiya Masuda, Saitama, JP;
Yoshiaki Kinoshita, Saitama, JP;
Natsumi Suehiro, Saitama, JP;
Munirathna Padmanaban, Saitama, JP;
Hiroshi Okazaki, Saitama, JP;
Hajime Endo, Saitama, JP;
Ralph Dammel, Flemington, NJ (US);
Georg Pawlowski, Wiesbaden, DE;
Hoechst Japan Limited, Tokyo, JP;
Abstract
A process for producing a solution of a basic or non-basic sulfonium compound (A) of formulae II-V: ##STR1## wherein R.sup.5, R.sup.6 and R.sup.7 each independently represent a C.sub.1 -C.sub.18 alkyl, aryl or heteroaryl group or an aryl group mono-, di- or tri-substituted with an alkyl, an alkylaryl, an aryl, a halogen, an alkoxy, a phenoxy, a thiophenol, a phenylsulfonyl or a phenylsulphenyl;