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:
Nov. 06, 2007
Filed:
Aug. 26, 2003
Wiebke Wunderlich-wippert, Lörrach, DE;
Rudolf Pfaendner, Rimbach, DE;
Francesco Fuso, Therwil, CH;
Jochen Fink, Nussloch, DE;
Wiebke Wunderlich-Wippert, Lörrach, DE;
Rudolf Pfaendner, Rimbach, DE;
Francesco Fuso, Therwil, CH;
Jochen Fink, Nussloch, DE;
Ciba Specialty Chemicals Corp., Tarrytown, NY (US);
Abstract
The present invention provides a method of forming comb or star copolymers. The comb or star copolymers are useful in surface modification of thermoplastic materials or as surfactants. The method is aimed at attaching a polymeric side chain differing in polarity and chemical structure from the backbone and forming a comb or star copolymer structure. In particular the process comprises polymerizing in a first step a polymer backbone from epoxy and nitroxylether group containing monomers and in a second step polymerizing under controlled radical conditions a comb or star structure onto this backbone. The epoxy group containing monomers are for example of the formula (II)