The present invention relates to an olefin-based polymer, which has (1) a density (d) ranging from 0.850 to 0.865 g/cc, (2) a melt index (MI, 190° C., 2.16 kg load conditions) ranging from 0.1 g/10 min to 3.0 g/10 min, and (3) a soluble fraction (SF) of 10 wt % or more at −20° C. in cross-fractionation chromatography (CFC), in which a weight average molecular weight (Mw) of the soluble fraction is in a range of 50,000 g/mol to 500,000 g/mol. The olefin-based polymer according to the present invention exhibits improved anti-blocking properties as a low-density olefin-based polymer.

A catalyst compound and process for olefin polymerization. The catalyst can be represented by Formula (I):

##STR00001##

wherein: M is a transition metal selected from group 3, 4, or 5 of the Periodic Table of Elements; L is a linking group selected from any one or more difunctional C.sub.1-C.sub.20 hydrocarbyl, aryl or substituted aryl groups; T is an optional bridging group; each X is a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; R.sup.1 and R.sup.2 are each independently a hydrogen atom or substituted or unsubstituted C.sub.1 to C.sub.20 hydrocarbyl group; R.sup.3, R.sup.5, R.sup.6 and R.sup.7 are each independently a hydrogen atom or a substituted or unsubstituted C.sub.1 to C.sub.20 hydrocarbyl group, and, optionally, any two of R.sup.5, R.sup.6, and R.sup.7 can be joined to form a cyclic structure; R.sup.4 is a substituted or unsubstituted aryl group; and R.sup.8, R.sup.9, R.sup.10, and R.sup.11 are each independently a substituted or unsubstituted C.sub.1 to C.sub.6 hydrocarbyl group and, optionally, R.sup.9 and R.sup.10 are joined to form a cyclic structure.

The present disclosure provides a process. In an embodiment, the process includes contacting ethylene and octene under polymerization conditions at a temperature greater than 125° C. with a catalyst system comprising (i) a first polymerization catalyst having the structure of Formula (III), a second polymerization catalyst having the structure of Formula (I), and (iii) a chain shuttling agent. The process includes forming an ethylene/octene multi-block copolymer having a normalized OOO triad content greater than 0.25. The present disclosure provides the resultant composition produced by the process. In an embodiment, the composition includes an ethylene/octene multi-block copolymer having a normalized OOO triad content greater than 0.25.

The present disclosure provides a process. In an embodiment, the process includes contacting ethylene and octene under polymerization conditions at a temperature greater than 125° C. with a catalyst system comprising (i) a first polymerization catalyst having the structure of Formula (III), a second polymerization catalyst having the structure of Formula (I), and (iii) a chain shuttling agent. The process includes forming an ethylene/octene multi-block copolymer having a normalized OOO triad content greater than 0.25. The present disclosure provides the resultant composition produced by the process. In an embodiment, the composition includes an ethylene/octene multi-block copolymer having a normalized OOO triad content greater than 0.25.

The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having improved tensile strength and excellent processability during extrusion by optimizing a low molecular region in a molecular structure, and a CPE compound including the same.

The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having improved tensile strength and excellent processability during extrusion by optimizing a low molecular region in a molecular structure, and a CPE compound including the same.

Provided are a pellet-type polyethylene resin composition capable of improving pipe pressure resistance property, dimensional stability, and processability at the same time, and a method of preparing the same.

Provided are a pellet-type polyethylene resin composition capable of improving pipe pressure resistance property, dimensional stability, and processability at the same time, and a method of preparing the same.

The present invention relates to an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and a method for preparing the same.

The present invention relates to an ethylene/alpha-olefin copolymer having excellent volume resistance and light transmittance, and a method for preparing the same.