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. 11, 2005
Filed:
Jun. 10, 2002
Giampiero Morini, Padua, IT;
Giulio Balbontin, Ferrara, IT;
Ronald R. Andrea, IJsselstein, NL;
Van Loon Jan Dirk, Almere, NL;
Giampiero Morini, Padua, IT;
Giulio Balbontin, Ferrara, IT;
Ronald R. Andrea, IJsselstein, NL;
Van Loon Jan Dirk, Almere, NL;
Basell Poliolefine Italis S.p.A., Milan, IT;
Abstract
Solid catalyst components comprising Ti,Mg, halogen and internal electron-donor compound selected from the 1,3-diethers of formula (I) in which R is a C-Calkyl group, Ris a linear or branched primary alkyl radical having at least three carbon atoms, optionally containing a heteroatom, and Ris a secondary alkyl or cycloalkyl radicals different from i-propyl, optionally containing a heteroatom. The catalysts obtained by using as internal electron-donor compound the said 1,3-diethers display in the (co)polymerization of olefins an excellent balance of activity and stereospecificity that cannot be reached with the ethers known in the art.