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:
Apr. 26, 2011
Filed:
Sep. 26, 2008
Mana Ito, Pessac, FR;
Stephane Carlotti, Pessac, FR;
Alain Deffieux, Bordeaux, FR;
Michael Lefenfeld, New York, NY (US);
Mana Ito, Pessac, FR;
Stephane Carlotti, Pessac, FR;
Alain Deffieux, Bordeaux, FR;
Michael Lefenfeld, New York, NY (US);
Signa Chemistry, Inc., New York, NY (US);
Abstract
Stage I Group 1 metal/porous metal oxide compositions or Stage II Group 1 metal/porous metal oxide compositions are shown to be useful to remove impurities and act as drying agents for various types of solvents and for olefinic monomers used in anionic polymerizations. One important advantage of these compositions is their ability to dry simultaneously solvent and monomers, without inducing a significant polymerization of the latter. Another important characteristic is the capacity of the compositions to be totally inactive toward conventional anionic polymerization which allows them to be left in situ during the polymerization itself.