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:
Jun. 20, 2017
Filed:
Jul. 16, 2015
Daelim Industrial Co., Ltd., Seoul, KR;
Myeong Seok Kim, Sejong, KR;
Min Sup Park, Daejeon, KR;
Hyung Jae Seo, Daejeon, KR;
Se Hyun Lee, Daejeon, KR;
DAELIM INDUSTRIAL CO., LTD., Seoul, KR;
Abstract
Disclosed is a method for preparing a highly reactive polybutene of high quality having low fluorine content and high vinylidene content at high mileage of catalyst with economy. The method for preparing a polybutene includes: performing a selective hydrogenation reaction of diolefin among C4 hydrocarbon components produced from petroleum refineries or naphtha cracking centers, which involve cracking of crude oils, and simultaneously an isomerization reaction of 1-butene to 2-butene and then isolating an isobutene feedstock through fractional distillation; and polymerizing the isobutene feedstock obtained by the fractional distillation.