Patent classifications
C08F2500/39
ETHYLENE COPOLYMERS PRODUCED WITH SINGLE SITE CATALYST
Embodiments of the invention described herein relate to a polyethylene polymer composition suitable for use in the manufacture of packaging articles, flexible films and/or sheets. In one embodiment, the copolymer comprises a polyethylene resin with density 0.918 g/cm.sup.3 to about 0.935 g/cm.sup.3, G at G.sub.(500 Pa) value, as determined from Dynamic Mechanical Analysis at 190? C., of less than 40 Pa, M.sub.z/M.sub.w of greater than 2, CDBI.sub.50 of greater than 60. Other embodiments relate to polymer compositions with defined molecular characteristics and formulations suitable for use in the manufacture of articles including films, sheets, bags and pouches with improved creep resistance and high toughness and a good balance of film stiffness and processability in monolayer and/or multi-layer film structures.
Unimodal polyethylene copolymer and film thereof
A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
Unimodal polyethylene copolymer and film thereof
A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning) properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
Polyethylene and its chlorinated polyethylene
There are provided a polyethylene capable of improving tensile strength while maintaining excellent processability and Mooney viscosity characteristics when preparing a chlorinated polyethylene compound by implementing a molecular structure having a low content of low molecular weight and a high content of high molecular weight, and a chlorinated polyethylene prepared using the same.
Polyethylene and its chlorinated polyethylene
There are provided a polyethylene capable of improving tensile strength while maintaining excellent processability and Mooney viscosity characteristics when preparing a chlorinated polyethylene compound by implementing a molecular structure having a low content of low molecular weight and a high content of high molecular weight, and a chlorinated polyethylene prepared using the same.
Thermoplastic Resin Composition
Provided is a thermoplastic resin composition comprising polypropylene and a multi-block copolymer. The thermoplastic resin composition including the polypropylene and the multi-block copolymer exhibits excellent scratch resistance, and thus may be usefully used as a resin composition in the manufacturing of products requiring scratch resistance, such as automotive interior materials.
Thermoplastic Resin Composition
Provided is a thermoplastic resin composition comprising polypropylene and a multi-block copolymer. The thermoplastic resin composition including the polypropylene and the multi-block copolymer exhibits excellent scratch resistance, and thus may be usefully used as a resin composition in the manufacturing of products requiring scratch resistance, such as automotive interior materials.
Metallocene catalyst compositions and polymerization process therewith
This invention relates homogeneous (solution) polymerization of propylene at higher temperatures (80 C. or more) using bisindenyl metallocene catalyst compounds having long (at least 4 carbon atoms) linear alkyl groups substituted at the 2-position and substituted or unsubstituted aryl groups at the 4-position.
Metallocene catalyst compositions and polymerization process therewith
This invention relates homogeneous (solution) polymerization of propylene at higher temperatures (80 C. or more) using bisindenyl metallocene catalyst compounds having long (at least 4 carbon atoms) linear alkyl groups substituted at the 2-position and substituted or unsubstituted aryl groups at the 4-position.
CATALYSTS
Compounds suitable for use in the polymerisation of olefins, such as ethylene, are described. Also described is a process for polymerising olefins using the described compounds. The compounds exhibit high polymerisation activities and afford polyolefins having industrially desirable properties, including high molecular weight and low polydispersity.