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:
Nov. 23, 1999
Filed:
May. 27, 1997
Applicant:
Inventors:
Naofumi Naga, Ichihara, JP;
Yoshiaki Oobayashi, Ichihara, JP;
Masatada Tasaka, Ichihara, JP;
Kouji Mizunuma, Kisarazu, JP;
Assignee:
Sumitomo Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
525 95 ; 525323 ;
Abstract
A propylene/ethylene-.alpha.-olefin block copolymer obtained by block-copolymerizing a polypropylene component with an ethylene-.alpha.-olefin random copolymer component, which satisfies conditions of the following terms (I) to (III):