Disclosed are methods for polymerizing olefin monomers comprising contacting one or more olefin monomers with a cosupported catalyst system and an activator. Also disclosed are polymers produced using the catalyst systems and methods disclosed herein. The polymers have a multimodal molecular weight distribution and may be produced in a single reactor.

Methods for treating solid metallocene compounds that are exposed to air are disclosed. These methods include a step of contacting the exposed solid metallocene compound with a purging gas stream containing an inert gas, and optionally, subjecting the exposed solid metallocene compound to a sub-atmospheric pressure.

This invention relates to hafnium metallocene compounds having a group substituted (preferably at the 3 position) on at least one cyclopentadienyl ring represented by the formula R.sup.20SiR.sub.3 or R.sup.20CR.sub.3 where R.sup.20 is a C.sub.1 to C.sub.4 hydrocarbyl (preferably methyl) and R is a C.sub.1 to C.sub.20 substituted or unsubstituted hydrocarbyl.

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 20 dg/minute, a density from about 0.948 to about 0.968 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 54% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

This disclosure relates to caps and closures manufactured from an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 20 dg/minute, a density from about 0.948 to about 0.968 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 54% to about 98%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

This disclosure relates to multilayer films having improved caulkability. These multilayer films have at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 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 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

This disclosure relates to multilayer films having improved caulkability. These multilayer films have at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 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 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

Provided are a novel transition metal compound, a transition metal catalyst composition for preparing an ethylene homopolymer or a copolymer of ethylene and -olefin, containing the same, a method for preparing an ethylene homopolymer or a copolymer of ethylene and -olefin using the same, and an ethylene homopolymer or a copolymer of ethylene and -olefin prepared using the same.

This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 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 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.

This disclosure relates to rotomolded articles, having a wall structure, where the wall structure contains at least one layer containing an ethylene interpolymer product, or a blend containing an ethylene interpolymer product, where the ethylene interpolymer product has: a Dilution Index (Y.sub.d) greater than 0; total catalytic metal ?3.0 ppm; ?0.03 terminal vinyl unsaturations per 100 carbon atoms, and; optionally a Dimensionless Modulus (X.sub.d) greater than 0. The ethylene interpolymer products have a melt index from about 0.4 to about 100 dg/minute, a density from about 0.950 to about 0.970 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 55% to about 97%. Further, the ethylene interpolymer products are a blend of at least two ethylene interpolymers; where one ethylene interpolymer is produced with a single-site catalyst formulation and at least one ethylene interpolymer is produced with a heterogeneous catalyst formulation.