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:
Sep. 12, 2006
Filed:
Sep. 17, 2004
Takeshi Ishihara, Ibaraki, JP;
Ban the Hoang, Ibaraki, JP;
Hideaki Hagihara, Ibaraki, JP;
Kenji Tsuchihara, Ibaraki, JP;
Takeshi Shiono, Hiroshima, JP;
Takeshi Ishihara, Ibaraki, JP;
Ban The Hoang, Ibaraki, JP;
Hideaki Hagihara, Ibaraki, JP;
Kenji Tsuchihara, Ibaraki, JP;
Takeshi Shiono, Hiroshima, JP;
Tonen Chemical Corporation, Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
The present invention provides a new copolymer of propylene and a conjugated diene having a carbon-carbon double bond in a side chain, wherein a molar ratio of a total of 1,2-adducts and 3,4-adducts to 1,4-adducts, derived from the conjugated diene, is 100:0. The copolymer is prepared in a process, characterized in that propylene and the conjugated diene are copolymerized in the presence of hydrogen, an organometallic compound comprising a transition metal selected from the group 4 of the periodic table, and at least one Lewis acid.