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:
May. 09, 2017
Filed:
Jun. 09, 2016
Lg Chem, Ltd., Seoul, KR;
Man-Seong Jeon, Daejeon, KR;
Ki-Soo Lee, Daejeon, KR;
Yong-Ho Lee, Incheon, KR;
Heon-Yong Kwon, Daejeon, KR;
Min-Seok Cho, Daejeon, KR;
Seon-Kyoung Kim, Daejeon, KR;
Kyoung-Chan Lim, Daejeon, KR;
Dae-Sik Hong, Gunpo-si, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present description relates to an olefin block copolymer with excellences in elasticity, heat resistance, and processability. The olefin block copolymer comprises a plurality of blocks or segments, each comprising an ethylene or propylene repeating unit and an α-olefin repeating unit at different mole fractions. The olefin block copolymer comprises polymer chains containing 20 to 100 short-chain branches (SCBs) per 1,000 carbon atoms. A point where a first derivative of the number Y of the SCBs per 1,000 carbon atoms of each polymer chain with respect to the molecular weight X of the polymer chain is 0 exists between the minimum and maximum values of the molecular weight X.