Metallocene complexes represented by the structure below are useful for alpha olefin oligomerization in the presence of an activator to generate polyalphaolefins having a high percentage of vinylidene termination and relatively low Mn values. ##STR00001##
M is a group 4 transition metal. A is a bridging group having one bridging atom extending between a first indenyl ring and a second indenyl ring. Each X is independently an anionic ligand, or two Xs are joined and bound to M 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, R.sup.1′, R.sup.3, R.sup.3′, R.sup.4, R.sup.4′, R.sup.7 and R.sup.7′ are hydrogen. R.sup.5, R.sup.5′, R.sup.6, and R.sup.6′ are independently a C.sub.1-C.sub.10, optionally substituted, hydrocarbyl group, or R.sup.5 and R.sup.6 and/or R.sup.5′ and R.sup.6′ are bonded together to form an optionally substituted hydrocarbyl ring structure.

A spray-dried zirconocene catalyst system comprising a zirconocene catalyst and a hydrophobic fumed silica, which supports the zirconocene catalyst. A spray-drying method of making same. Polyolefins; methods of making and using same; and articles containing same.

A spray-dried zirconocene catalyst system comprising a zirconocene catalyst and a hydrophobic fumed silica, which supports the zirconocene catalyst. A spray-drying method of making same. Polyolefins; methods of making and using same; and articles containing same.

The present disclosure provides a composition. The composition is crosslinkable and includes an ethylene silane-copolymer, an oil-extended ethylene-propylene-diene monomer (EPDM), and a crosslink catalyst. The present disclosure also provides the composition after crosslinking. In an embodiment, a crosslinked composition is provided and includes from 55 wt % to 85 wt % of an ethylene-silane copolymer and from 15 wt % to 45 wt % of an oil-extended EPDM. The crosslinked composition has: (a) a flexural modulus of 50 MPa to 160 MPa; and (b) a hot set elongation greater than 10%. The crosslinked composition can be used as a coating for a coated conductor.

The present disclosure provides a composition. The composition is crosslinkable and includes an ethylene silane-copolymer, an oil-extended ethylene-propylene-diene monomer (EPDM), and a crosslink catalyst. The present disclosure also provides the composition after crosslinking. In an embodiment, a crosslinked composition is provided and includes from 55 wt % to 85 wt % of an ethylene-silane copolymer and from 15 wt % to 45 wt % of an oil-extended EPDM. The crosslinked composition has: (a) a flexural modulus of 50 MPa to 160 MPa; and (b) a hot set elongation greater than 10%. The crosslinked composition can be used as a coating for a coated conductor.

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.

The present invention relates to a ligand compound having a novel structure of the following, a transition metal compound and a catalyst composition including the same:

##STR00001##

Wherein R.sub.1 to R.sub.7, and n are described herein.

The present invention relates to a ligand compound having a novel structure of the following, a transition metal compound and a catalyst composition including the same:

##STR00001##

Wherein R.sub.1 to R.sub.7, and n are described herein.

There is provided a method for preparing a metallocene-supported catalyst that exhibits catalytic activity, and yet, can decrease fine generation, and thus, can minimize fouling and chunk generation, and can stably prepare polyethylene having excellent properties.