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. 19, 2006
Filed:
Dec. 23, 2005
Gwanghoon Kwag, Daejeon, KR;
Pilsung Kim, Daejeon, KR;
Shin Han, Daejeon, KR;
Hyung Kyu Choi, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Seung Hwa Lee, Daejeon, KR;
Sung Hoon Han, Daejeon, KR;
Gwanghoon Kwag, Daejeon, KR;
Pilsung Kim, Daejeon, KR;
Shin Han, Daejeon, KR;
Hyung Kyu Choi, Daejeon, KR;
Dong Hwan Kim, Daejeon, KR;
Seung Hwa Lee, Daejeon, KR;
Sung Hoon Han, Daejeon, KR;
Korea Kumho Petrochemical Co., Ltd., Seoul, KR;
Abstract
The present invention relates to a method for preparing neodymium-carbon-nanotube and a process for preparing 1,4-cis-polybutadiene utilizing the same and more particularly, neodymium-carbon-nanotube. Neodymium is introduced by coordination with carboxylic acid, which is formed on the surface of carbon nanotube. In 1,3-butadiene polymerization with the neodymium-catalyst comprising the neodymium-carbon nanotube, a particular halogen compound, and a particular organometallic compound in an appropriate ratio, high 1,4-cis polybutadiene having molecular weight of 10,000 to 2,000,000 is produced, which exhibits excellent mechanical properties such as elasticity and durability.