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. 03, 2025
Filed:
Jul. 02, 2021
Lg Chem, Ltd., Seoul, KR;
In Sung Park, Daejeon, KR;
Ji Yoon Woo, Daejeon, KR;
Sang Eun Park, Daejeon, KR;
Ki Eun Kim, Daejeon, KR;
Sang Wook Han, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to an olefin-based polymer satisfying requirements: (1) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 1.0 to 10.0 g/10 min; (2) a density (d) ranging from 0.875 to 0.895 g/cc; (3) 0.5 J/g≤dH(100)≤3.0 J/g and 1.0 J/g≤dH(90)≤6.0 J/g as measured by successive self-nucleation/annealing (SSA) using a differential scanning calorimeter (DSC); (4) 15≤T(90)−T(50)≤30 and 50° C.≤T(50)≤75° C. as measured by SSA using a DSC; and (5) a melting point (Tm) of 55° C.≤Tm≤80° C. as measured using a DSC. The olefin-based polymer according to the present invention is a low-density olefin-based polymer and has a highly crystalline region introduced therein, thereby exhibiting high mechanical stiffness.