Polyolefin-polystyrene multi-block copolymer and method for producing same

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United States of America Patent

PATENT NO 12116445
SERIAL NO

17602048

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Abstract

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A polyolefin-polystyrene multi-block copolymer and method of making the same is disclosed herein. In some embodiments, a polyolefin-polystyrene multi-block copolymer having a ratio of a loss modulus (E″) to a storage modulus (E′) satisfying the following conditions (a) and (b) over a temperature range of −80° C. to 40° C., wherein the ratio is represented by a loss tangent (tan δ) value and is obtained by dynamic mechanical analysis (DMA), (a) a maximum of the tan δ value in a peak present in the temperature range is 0.20 to 0.35, and (b) a half-width of the peak ranges from 32.0° C. to 50.0° C. The polyolefin-polystyrene multi-block copolymer has a structure in which polystyrene chains are attached to both ends of a polyolefin chain.

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LG CHEM LTD128 YEOUI-DAERO YEONGDEUNGPO-GU SEOUL 07336

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Im, Seul Ki Daejeon, KR 37 52
Kim, Yun Kon Daejeon, KR 11 7
Lee, Dae Woong Daejeon, KR 45 173
Lee, Hyun Mo Daejeon, KR 22 34
Lee, Ki Soo Daejeon, KR 131 461
Lee, Myung Han Daejeon, KR 37 199
Park, Ji Hyun Daejeon, KR 101 597
Park, Sung Hyun Daejeon, KR 61 251
Sa, Seok Pil Daejeon, KR 52 95
Shin, Eun Ji Daejeon, KR 66 181

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