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:
Jan. 31, 2006
Filed:
Oct. 09, 2003
Thierry Coupin, Carnieres, BE;
Jean Philippe Hallet, Brussels, BE;
Thierry Coupin, Carnieres, BE;
Jean Philippe Hallet, Brussels, BE;
Atofina Research, Seneffe-Feluy, BE;
Abstract
The invention relates to a novel transparent block copolymer and its process for the manufacture. The process comprises a first partial killing of at least the living copolymeric species R-S-B-M with a multi-functional deactivation agent where Sis a monovinyl-substituted aromatic homopolymer, B, is a conjugated diene homopolymer, M is an alkali metal and R is an alkyl (RM being an initiator) and further comprises a second total deactivation of at least the living tapered block copolymeric species R-S-B-B/S-M (obtained by adding a feed B/Sto the reaction medium) by a mono-functional deactivation agent (the terminating agent).