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. 25, 2012
Filed:
Dec. 11, 2008
Abdelkrim El Kadib, Montpellier, FR;
Karine Molvinger, Montpellier, FR;
Daniel Brunel, Montpellier, FR;
Floran Prades, Nivelles, BE;
Sabine Sirol, Wanthier-Brame, BE;
Abdelkrim El Kadib, Montpellier, FR;
Karine Molvinger, Montpellier, FR;
Daniel Brunel, Montpellier, FR;
Floran Prades, Nivelles, BE;
Sabine Sirol, Wanthier-Brame, BE;
Total Petrochemicals Research Feluy, Seneffe (Feluy), BE;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
The present invention relates to the covalent anchorage of non-coordinating anions on mineral supports to prepare activating supports for the polymerisation of ethylene and alpha-olefins and wherein the activating species is provided by a phosphonium-borate or phosphonium alane pair. The invention also discloses the concomitant covalent anchorage of zwitterionic systems containing both the non-coordinating anion and the counter cation parts of the activating supports.