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.

Date of Patent:
Jan. 26, 2010

Filed:

Mar. 31, 2003
Applicants:

Diego Tirelli, Milan, IT;

Michele Galbusera, Milan, IT;

Luca Castellani, Milan, IT;

Franco Peruzzotti, Milan, IT;

Enrico Albizzati, Milan, IT;

Inventors:

Diego Tirelli, Milan, IT;

Michele Galbusera, Milan, IT;

Luca Castellani, Milan, IT;

Franco Peruzzotti, Milan, IT;

Enrico Albizzati, Milan, IT;

Assignee:

Pirelli & C. S.p.A., Milan, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/00 (2006.01); C08L 23/04 (2006.01); C08L 23/10 (2006.01); C08L 23/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thermoplastic material has a) from 5% weight to 95% by weight, preferably from 10% by weight to 60% by weight, of vulcanized rubber in a subdivided form; b) from 5% by weight to 95% by weight, preferably from 40% by weight to 90% by weight, of at least one heterophase copolymer having a thermoplastic phase made from a propylene homopolymer or copolymer and an elastomeric phase made from a copolymer of ethylene with an α-olefin, preferably with propylene; c) from 0% by weight to 90% by weight, preferably from 0% by weight to 50% by weight, of at least one α-olefin homopolymer or copolymer different from b); the amounts of a), b) and c) being expressed with respect to the total weight of a)+b)+c). The thermoplastic material shows improved mechanical properties, in particular, improved elongation at break.


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