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:
Oct. 30, 2007
Filed:
Mar. 06, 2003
Anteo Pelliconi, S. M. Maddalena, IT;
Enea Garagnani, Ferrara, IT;
Yutaka Yokoyama, Kawasaky, JP;
Junichiro Washiyama, Yokohama, JP;
Hiroshi Takenouchi, Kanagawa, JP;
Takeshi Nakajima, Tokyo, JP;
Anteo Pelliconi, S. M. Maddalena, IT;
Enea Garagnani, Ferrara, IT;
Yutaka Yokoyama, Kawasaky, JP;
Junichiro Washiyama, Yokohama, JP;
Hiroshi Takenouchi, Kanagawa, JP;
Takeshi Nakajima, Tokyo, JP;
Basell Poliolefine Italia S.p.A., Milan, IT;
Abstract
A masterbatch composition comprising (1) 10-50 wt % of a crystalline propylene homopolymer and (2) 50-90 wt % of a blend consisting of (a) a copolymer of ethylene and one or more C4-CIO a-olefin(s), containing 10-40 of C4-CIO a-olefin(s), and (b) an amorphous copolymer of propylene and ethylene. Copolymer (b) has an ethylene content from 20-70 wt %, and an intrinsic viscosity value of the xylene-soluble moiety of from 2.2 to 3.5 d/Lg, this value being equal to 0.8 to 1.2 times the intrinsic viscosity value of the xylene-soluble moiety of copolymer (a). The weight ratio of copolymers (a)/(b) is from 3/1 to 1/3. Polyolefin compositions comprising the said masterbatch composition are suitable for the manufacture of automotive parts.