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:
Jun. 14, 2005
Filed:
May. 13, 2003
Applicant:
Susumu Kanzaki, Kisarazu, JP;
Inventor:
Susumu Kanzaki, Kisarazu, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L023/10 ; C08L023/12 ; C08L023/04 ;
U.S. Cl.
CPC ...
Abstract
Disclosed is a propylene-ethylene block copolymer which is superior in stiffness, hardness and moldability and also in balance between toughness and low-temperature impact resistance. The copolymer contains from 60 to 85% by weight of a crystalline polypropylene portion and from 15 to 40% by weight of a specific propylene-ethylene random copolymer portion, wherein the propylene-ethylene block copolymer has a melt flow rate (MFR) of from 5 to 120 g/10 min.