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US 12,528,898 B2Granted
Ethylene/alpha-olefin copolymer with excellent electrical insulation
AssigneeLG Chem, Ltd.
InventorsJin Sam Gong, Eun Jung Lee, Young Woo Lee, Jung Ho Jun, Jin Kuk Lee, Sang Hyun Hong, Jong Gil Kim, Hye Ji Lee, Sang Wook Han
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Abstract
The present invention relates to an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and a method for preparing the same.
Claims9
An ethylene/alpha-olefin copolymer satisfying the following conditions (a) to (e):
- (a) a density is 0.85 to 0.89 g/cc;
- (b) a melting temperature (Tm) having a maximum peak in a curve obtained by differential scanning calorimetry (DSC), which is represented by heat flow with respect to temperature, is 40 to 90° C.;
- (c) the melting temperature (Tm) and an elution temperature (Te) having a maximum peak in a curve obtained by cross-fractionation chromatography (CFC), which is represented by elution amount with respect to temperature (dC/dT), satisfy the following Equation 1:
- 35° C.<Tm−Te<65° C., [Equation 1]
- (d) the elution temperature (Te) is 25° C. or more;
- and
- (e) a molecular weight distribution (MWD) is 1.5 to 2.5.
4 more elements
Dependencies are inferred from the claim text.