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:
Dec. 26, 2000
Filed:
May. 24, 1999
Applicant:
Inventors:
Michael John Modic, Richmond, TX (US);
Norio Masuko, Tsukuba, JP;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525 89 ; 525 98 ; 524451 ;
Abstract
The present invention is a unique polypropylene copolymer resin composition which comprises a propylene-ethylene copolymer having a melt flow rate of at least 50 g/10 min and an impact modifier which comprises a thermoplastic elastomer of a hydrogenated triblock copolymer which has a specific structure in which a block of a tapered increment of an vinyl aromatic hydrocarbon portion is arranged after the isoprene homopolymer block. Accordingly, the present invention provides a polypropylene resin composition comprising