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:
Jul. 14, 2015
Filed:
Jan. 19, 2012
Kyung-seop Noh, Daejeon, KR;
Nan-young Lee, Seoul, KR;
Won-hee Kim, Daejeon, KR;
Sang-eun an, Daejeon, KR;
Sang-jin Jeon, Daejeon, KR;
Cheon-il Park, Daejeon, KR;
Choong-hoon Lee, Daejeon, KR;
Kyung-Seop Noh, Daejeon, KR;
Nan-Young Lee, Seoul, KR;
Won-Hee Kim, Daejeon, KR;
Sang-Eun An, Daejeon, KR;
Sang-Jin Jeon, Daejeon, KR;
Cheon-Il Park, Daejeon, KR;
Choong-Hoon Lee, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
The present description relates to an olefin block copolymer having excellences in elasticity and heat resistance and its preparation method. The olefin block copolymer includes a plurality of blocks or segments, each of which includes an ethylene or propylene repeating unit and an α-olefin repeating unit at different weight fractions. The olefin block copolymer has a density of 0.85 to 0.92 g/cm, and density X (g/cm) and TMA (Thermal Mechanical Analysis) value Y (° C.) satisfy a defined relationship.