The present disclosure is directed to a silicon-terminated organo-metal composition comprising a compound of formula (I). Embodiments relate to a process for preparing the silicon-terminated organo-metal composition comprising the compound of formula (I), the process comprising combining starting materials comprising (A) a vinyl-terminated silicon-based compound and (B) a chain shuttling agent, thereby obtaining a product comprising the silicon-terminated organo-metal composition. In further embodiments, the starting materials of the process may further comprise (C) a solvent.

##STR00001##

This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (M.sub.e). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCID.sub.i), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm.sup.3, a polydispersity (M.sub.w/M.sub.n) from about 2 to about 25 and a CDBI.sub.50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCID.sub.i.

This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (M.sub.e). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCID.sub.i), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm.sup.3, a polydispersity (M.sub.w/M.sub.n) from about 2 to about 25 and a CDBI.sub.50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCID.sub.i.

The present invention is a process to modify a starting polyethylene resin composition. In the process, a starting polyethylene resin composition is extruded with at least one primary antioxidant and a free-radical generator to make a modified polyethylene resin composition.

This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (M.sub.e). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCID.sub.i), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm.sup.3, a polydispersity (M.sub.w/M.sub.n) from about 2 to about 25 and a CDBI.sub.50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCID.sub.i.

This disclosure relates to ethylene interpolymer product having intermediate branching. Intermediate branching was defined as branching that was longer than the branch length due to comonomer and shorter than the entanglement molecular weight (M.sub.e). Intermediately branched ethylene interpolymer products were produced in a continuous solution polymerization process employing an intermediate branching catalyst formulation. Intermediately branched ethylene interpolymer products were characterized by a Non-Comonomer Index Distribution (NCID.sub.i), a melt index from 0.3 to 500 dg/minute, a density from 0.858 to 0.965 g/cm.sup.3, a polydispersity (M.sub.w/M.sub.n) from about 2 to about 25 and a CDBI.sub.50 from about 10% to about 98%. A method based on triple detection cross fractionation chromatography (3D-CFC) was disclosed to measure NCID.sub.i.

A solid catalyst component for the polymerization of olefins made from or containing Mg, Ti and an electron donor of formula (I) ##STR00001##
where the R.sup.1 and R.sup.5 groups, equal to or different from each other, are selected from C.sub.1-C.sub.15 hydrocarbon groups, R.sup.2 group is selected from C.sub.2-C.sub.10 hydrocarbon groups, R.sup.3 to R.sup.4 groups, independently, are selected from hydrogen or C.sub.1-C.sub.20 hydrocarbon groups, optionally fused together to form one or more cycles, with the proviso that at least one of R.sup.3 to R.sup.4 groups is a C.sub.1-C.sub.20 alkyl group.

A polyolefin composition made from or containing: A) from 19 wt % to 50 wt % of a propylene ethylene copolymer having an ethylene derived units content ranging from 1.5 wt % to 6.0 wt; B) from 50 wt % to 81 wt % of a propylene ethylene 1-butene terpolymer having an ethylene derived units content ranging from 1.5 wt % and 6.0 wt % and 1-butene derived units content of between 4.8 wt % and 12.4 wt %;
wherein the ratio C2 wt %/C4 wt % is between 0.22 and 3.0, where C2 wt % is the weight percent of ethylene derived units and C4 wt % is the weight percent of 1-butene derived units; the content of xylene soluble fraction at 25 C. is between 2 and 15 wt %; molecular weight distribution (MWD), expressed in terms of Mw/Mn, greater than 4.0; recoverable compliance at 200 C. having a maximum value between 800 and 1200 seconds, lower than 6510.sup.5 Pa.sup.1.

The present invention relates to a process to control the molecular weight distribution of polyethylene and to reduce the smoke quantity during the formation of polyethylene, wherein the process for preparing polyethylene having narrow molecular weight distribution, comprising the following steps: a) continuously polymerizing ethylene by subjecting ethylene stream, hydrogen, solvent, Ziegler-Natta catalyst comprising titanium, co-catalyst, external electron donor selected from alkoxysilane compound into the reactor to produce polymer slurry; b) removing residue reaction gas from the polymer slurry stream obtained from a) and c) separating polymer stream in b) from the solvent.

Disclosed is a Ziegler-Natta catalyst composition comprising one or more Ziegler-Natta procatalyst compositions which comprise magnesium, titanium, a halogen, one or more internal electron donors; one or more aluminum containing cocatalysts; optionally one or more stereo-selectivity control agents (SCA); and one or more activity limiting agents (ALA) comprising one or more alkyl-, cycloalkyl- or aryl carbonates and derivatives. Such a Ziegler-Natta catalyst composition exhibits self-limiting catalyst activity in olefin polymerization, particularly propylene polymerization.