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:
Aug. 12, 2008
Filed:
Mar. 28, 2006
Hyun-ki Yun, Daejeon, KR;
Byeong-gyu Lim, Daejeon, KR;
Myeong-seog Kim, Daejeon, KR;
Se-saeng OH, Daejeon, KR;
Jae-hoon Uhm, Daejeon, KR;
Hyun-Ki Yun, Daejeon, KR;
Byeong-Gyu Lim, Daejeon, KR;
Myeong-Seog Kim, Daejeon, KR;
Se-Saeng Oh, Daejeon, KR;
Jae-Hoon Uhm, Daejeon, KR;
Daelim Industrial Co., Ltd., , KR;
Abstract
A method for producing high reactive polybutene (HRPB), in which carbon-carbon double bond is positioned at an end of polybutene, is disclosed. The high reactive polybutene having 300˜5000 of number average molecular weight (Mn) can be produced from a raw material containing isobutene, wherein a polymerization reaction of the isobutene is carried out in the presence of a catalyst system including secondary alkylether, tertiary alcohol, and boron trifluoride, the amount of boron trifluoride is 0.05˜1.0 weight part per 100 weight part of isobutene, the mole ratio of a co-catalyst including secondary alkylether and tertiary alcohol:boron trifluoride is 1.0˜2.0:1, and the mole ratio of secondary alkylether:tertiary alcohol is 0.5˜1.2:1.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile