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:
Jan. 06, 1998
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Daisuke Fukuoka, Waki-cho, JP;
Takashi Tashiro, Waki-cho, JP;
Koji Kawaai, Waki-cho, JP;
Takashi Ueda, Waki-cho, JP;
Yoshihisa Kiso, Waki-cho, JP;
Akira Mizuno, Waki-cho, JP;
Masaaki Kawasaki, Waki-cho, JP;
Masaaki Itoh, Waki-cho, JP;
Mikio Hashimoto, Waki-cho, JP;
Assignee:
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
5263482 ; 526160 ; 5263486 ; 526351 ; 526943 ;
Abstract
The novel propylene homopolymer and copolymer produced by using a catalyst which is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like; and Y is a divalent hydrocarbon group, a divalent silicon-containing group or the like.