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. 21, 2006
Filed:
Dec. 04, 2001
Dario Lazzari, Bologna, IT;
Mirko Rossi, San Lazzaro di Savena, IT;
Giuseppe Veronesi, Bologna, IT;
Nazzareno Ruggeri, San Benedetto Val di Sambro, IT;
Katharina Fritzsche, Weil am Rhein, DE;
Adalbert Braig, Binzen, DE;
Dario Lazzari, Bologna, IT;
Mirko Rossi, San Lazzaro di Savena, IT;
Giuseppe Veronesi, Bologna, IT;
Nazzareno Ruggeri, San Benedetto Val di Sambro, IT;
Katharina Fritzsche, Weil am Rhein, DE;
Adalbert Braig, Binzen, DE;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The instant invention discloses a process for the preparation of compounds of the formula I:wherein the general symbols are as defined in claim, which process comprises reacting a compound of formula II:wherein the general symbols are as defined in claim, with a compound of the formula III:wherein Ris as defined in claim. The compounds of the formula II are new and useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation.