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.:

US 9045629 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 02, 2015

Filed:

May. 05, 2006
Applicants:

Paola Massari, Ferrara, IT;

Marco Ciarafoni, Ferrara, IT;

Jean News, Newark, DE (US);

Inventors:

Paola Massari, Ferrara, IT;

Marco Ciarafoni, Ferrara, IT;

Jean News, Newark, DE (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/00 (2006.01); C08L 23/04 (2006.01); C08L 23/10 (2006.01); C08L 23/14 (2006.01);
U.S. Cl.
CPC ...
C08L 23/10 (2013.01); C08L 23/14 (2013.01); C08L 2205/03 (2013.01);
Abstract

A polypropylene composition comprising 65-77 wt % of a crystalline propylene polymer, 8 to less than 13 wt % of an elastomeric copolymer and 10-23 wt % of polyethylene. The said composition exhibits a flexural modulus value higher than 1300 MPa, stress-whitening resistance values corresponding to a diameter of the whitened area of at most 1.7 cm caused by a ram falling from a 76 cm height and a diameter of the whitened area of at most 1.2 cm caused by a ram falling from a 20 cm height, and a value of Izod impact resistance at 23° C. more than 14 kJ/m2 and the one at −20° C. at least 5 kJ/m2.


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