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:
Aug. 30, 2011
Filed:
Mar. 29, 2004
Anteo Pelliconi, S. M. Maddalena, IT;
Enea Garagnani, Ferrera, IT;
Gerald J. Ennis, Oxford, PA (US);
Anteo Pelliconi, S. M. Maddalena, IT;
Enea Garagnani, Ferrera, IT;
Gerald J. Ennis, Oxford, PA (US);
Basell Poliolenfine Italia s.r.l., Milan, IT;
Abstract
A masterbatch composition comprising (percent by weight): A) 50%-90% of a crystalline polypropylene component comprising: A) from 25% to 75% of a fraction having a melt flow rate MFRof from 0.1 to 10 g/10 min.; and A) from 75% to 25% of a fraction having a melt flow rate value MFRequal to or lower than 100 g/10 min.; wherein the ratio MFR/MFRis from 5 to 60; and B) 10%-50% of a copolymer component of ethylene and at least one C-Cα-olefin, containing from 15% to 50% of ethylene; said masterbatch composition having a value of the intrinsic viscosity [η] of the fraction soluble in xylene at room temperature equal to or higher than 3.5 dl/g, is added to polyolefin materials to obtain final compositions suitable for injection molding.