Patent classifications
C08F210/16
CYCLOPENTADIENYL/ADAMANTYL PHOSPHINIMINE ZIRCONIUM AND HAFNIUM COMPLEXES
Provided in this disclosure are zirconium and hafnium complexes that contain 1) a cyclopentadienyl ligand; 2) an adamantyl-phosphinimine ligand; and 3) at least one other ligand. The use of such a complex, in combination with an activator, as an olefin polymerization catalyst is demonstrated. The catalysts are effective for the copolymerization of ethylene with an alpha olefin (such as 1-butene, 1-hexene, or 1-octene).
CYCLOPENTADIENYL/ADAMANTYL PHOSPHINIMINE ZIRCONIUM AND HAFNIUM COMPLEXES
Provided in this disclosure are zirconium and hafnium complexes that contain 1) a cyclopentadienyl ligand; 2) an adamantyl-phosphinimine ligand; and 3) at least one other ligand. The use of such a complex, in combination with an activator, as an olefin polymerization catalyst is demonstrated. The catalysts are effective for the copolymerization of ethylene with an alpha olefin (such as 1-butene, 1-hexene, or 1-octene).
CATALYST SYSTEMS AND PROCESSES FOR PRODUCING POLYETHYLENE USING THE SAME
##STR00001##
Embodiments of the present application are directed to procatalysts, and catalyst systems including procatalysts, including a metal-ligand complex having the structure of formula (I):
CATALYST SYSTEMS AND PROCESSES FOR PRODUCING POLYETHYLENE USING THE SAME
##STR00001##
Embodiments of the present application are directed to procatalysts, and catalyst systems including procatalysts, including a metal-ligand complex having the structure of formula (I):
POLYOLEFIN COMPOSITIONS
Embodiments are directed towards polyolefin compositions including a high molecular weight polyolefin and a low molecular weight polyolefin.
POLYOLEFIN COMPOSITIONS
Embodiments are directed towards polyolefin compositions including a high molecular weight polyolefin and a low molecular weight polyolefin.
POLYMERS WITH LOW LEVELS OF VOLATILE ORGANIC COMPOUNDS AND METHODS OF MAKING SUCH POLYMERS
Polypropylenes and impact copolymers with low organic volatiles. The impact copolymers comprising a polypropylene and within a range from 5 wt% to 40 wt% of an ethylene-propylene copolymer or rubber, by weight of the impact copolymer; wherein the polypropylene has a melt flow rate within a range from 100 g/10 min to 400 g/10 min, and the impact copolymer has a melt flow rate within a range from 15 g/10 min to 150 g/10 min; and wherein there are less than 1000 .Math.g of oligomer per gram of impact copolymer. The polymers may be made by combining olefins with the reaction product of a solid magnesium compound and a halogen-containing titanium compound with at least one phthalic acid ester compound and at least one diether compound as internal electron donors.
POLYMERS WITH LOW LEVELS OF VOLATILE ORGANIC COMPOUNDS AND METHODS OF MAKING SUCH POLYMERS
Polypropylenes and impact copolymers with low organic volatiles. The impact copolymers comprising a polypropylene and within a range from 5 wt% to 40 wt% of an ethylene-propylene copolymer or rubber, by weight of the impact copolymer; wherein the polypropylene has a melt flow rate within a range from 100 g/10 min to 400 g/10 min, and the impact copolymer has a melt flow rate within a range from 15 g/10 min to 150 g/10 min; and wherein there are less than 1000 .Math.g of oligomer per gram of impact copolymer. The polymers may be made by combining olefins with the reaction product of a solid magnesium compound and a halogen-containing titanium compound with at least one phthalic acid ester compound and at least one diether compound as internal electron donors.
CATALYST FOR THE POLYMERIZATION OF OLEFINS
A catalyst for the polymerization of olefins made from or containing (a) a solid catalyst component containing Mg, Ti and optionally an internal electron donor compound (ID), (b) an aluminum alky compound, and (c) an external electron donor (ED) selected from non-aromatic diazo compounds.
CATALYST FOR THE POLYMERIZATION OF OLEFINS
A catalyst for the polymerization of olefins made from or containing (a) a solid catalyst component containing Mg, Ti and optionally an internal electron donor compound (ID), (b) an aluminum alky compound, and (c) an external electron donor (ED) selected from non-aromatic diazo compounds.