A composition composed of at least a first ethylene/α-olefin/nonconjugated polyene interpolymer, which can be used to produce low compression set, foamed rubber materials, articles made from the composition, and methods of producing the composition and articles.

The invention provides a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said process comprising the following: polymerizing a mixture comprising ethylene, and optionally one or more comonomers, in a reactor system, comprising at least one reactor and at least one mixer, located downstream from the reactor, to form the ethylene-based polymer; and wherein the oil is added to the ethylene-based polymer upstream of the mixer. The invention also provides a reactor system for a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said reactor system comprising at least one reactor, at least one mixer, and an oil feed into the ethylene-based polymer, and wherein the oil feed is located after the reactor and before the mixer.

The invention provides a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said process comprising the following: polymerizing a mixture comprising ethylene, and optionally one or more comonomers, in a reactor system, comprising at least one reactor and at least one mixer, located downstream from the reactor, to form the ethylene-based polymer; and wherein the oil is added to the ethylene-based polymer upstream of the mixer. The invention also provides a reactor system for a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said reactor system comprising at least one reactor, at least one mixer, and an oil feed into the ethylene-based polymer, and wherein the oil feed is located after the reactor and before the mixer.

The present invention relates to a catalyst mixture containing at least one metal complex according to the formula (1)

CyLMZ.sub.p  (1), and at least one metal complex according to the formula (2)

InLMZ.sub.p  (2), wherein Cy is a substituted cyclopentadienyl ligand that contains the substituents R.sup.1, R.sup.2 and 3 additional methyl groups, wherein R.sup.1 means H, halogen or a C.sub.3-C.sub.20 substituent and R.sup.2 means a C.sub.1-C.sub.20 substituent, In is an indenyl ligand, optionally substituted with one or more substituents R.sup.3, wherein the one or more substituents R.sup.3 mean independently C.sub.1-C.sub.20 hydrocarbyl substituents, and independently for each formula (1) and (2) M is a group 4 metal Z independently is an anionic ligand, p is number of 1 to 2, preferably 2, and L is an amidinate ligand of the formula (3)

##STR00001## wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1 is a substituent comprising a group 14 atom through which Sub1 is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group 15, through which Sub2 is bonded to the imine carbon atom.

The present invention relates to a catalyst mixture containing at least one metal complex according to the formula (1)

CyLMZ.sub.p  (1), and at least one metal complex according to the formula (2)

InLMZ.sub.p  (2), wherein Cy is a substituted cyclopentadienyl ligand that contains the substituents R.sup.1, R.sup.2 and 3 additional methyl groups, wherein R.sup.1 means H, halogen or a C.sub.3-C.sub.20 substituent and R.sup.2 means a C.sub.1-C.sub.20 substituent, In is an indenyl ligand, optionally substituted with one or more substituents R.sup.3, wherein the one or more substituents R.sup.3 mean independently C.sub.1-C.sub.20 hydrocarbyl substituents, and independently for each formula (1) and (2) M is a group 4 metal Z independently is an anionic ligand, p is number of 1 to 2, preferably 2, and L is an amidinate ligand of the formula (3)

##STR00001## wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1 is a substituent comprising a group 14 atom through which Sub1 is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group 15, through which Sub2 is bonded to the imine carbon atom.

The present invention relates to a catalyst mixture containing at least one metal complex according to the formula (1)

CyLMZ.sub.p  (1), and at least one metal complex according to the formula (2)

InLMZ.sub.p  (2), wherein Cy is a substituted cyclopentadienyl ligand that contains the substituents R.sup.1, R.sup.2 and 3 additional methyl groups, wherein R.sup.1 means H, halogen or a C.sub.3-C.sub.20 substituent and R.sup.2 means a C.sub.1-C.sub.20 substituent, In is an indenyl ligand, optionally substituted with one or more substituents R.sup.3, wherein the one or more substituents R.sup.3 mean independently C.sub.1-C.sub.20 hydrocarbyl substituents, and independently for each formula (1) and (2) M is a group 4 metal Z independently is an anionic ligand, p is number of 1 to 2, preferably 2, and L is an amidinate ligand of the formula (3)

##STR00001## wherein the amidine-containing ligand is covalently bonded to the metal M via the imine nitrogen atom, and Sub1 is a substituent comprising a group 14 atom through which Sub1 is bonded to the imine carbon atom and Sub2 is a substituent comprising a heteroatom of group 15, through which Sub2 is bonded to the imine carbon atom.

The present disclosure provides an article of manufacture made from or containing a propylene-based terpolymer, having (i) ethylene-derived units in the range from about 0.5 wt. % to about 1.8 wt. %; (ii) 1-butene-derived units in the range from about 1.5 wt. % to about 2.5 wt. %; (iii) a ratio of C.sub.2 wt %/C.sub.4 wt % in the range from about 0.40 to about 0.80, wherein C.sub.2 wt % is the weight percent of ethylene-derived units and C.sub.4 wt % is the weight percent of 1-butene-derived units; (iv) a melt flow rate in the range from about 30 g/10 min to about 80 g/10 min; (v) a xylene soluble fraction at 25° C. lower than about 5.0 wt. %; and (vi) a melting point higher than about 140° C.

The article can be a container, which can be used for food applications.

The present disclosure provides an article of manufacture made from or containing a propylene-based terpolymer, having (i) ethylene-derived units in the range from about 0.5 wt. % to about 1.8 wt. %; (ii) 1-butene-derived units in the range from about 1.5 wt. % to about 2.5 wt. %; (iii) a ratio of C.sub.2 wt %/C.sub.4 wt % in the range from about 0.40 to about 0.80, wherein C.sub.2 wt % is the weight percent of ethylene-derived units and C.sub.4 wt % is the weight percent of 1-butene-derived units; (iv) a melt flow rate in the range from about 30 g/10 min to about 80 g/10 min; (v) a xylene soluble fraction at 25° C. lower than about 5.0 wt. %; and (vi) a melting point higher than about 140° C.

The article can be a container, which can be used for food applications.

Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.

Bis phenolate transition metal complexes are disclosed for use in alkene polymerization, with optional chain transfer agent, to produce polyolefins.