Abstract: The present disclosure relates to extrusion processes. In at least one embodiment, a method of forming a functionalized polymer includes introducing a polymer and a coupling agent to an extruder at a feed throat of the extruder. The method includes extruding the polymer and the coupling agent through at least a portion of the extruder via a plurality of intermeshing screws disposed within the extruder to form the functionalized polymer. The at least one screw of the plurality of intermeshing screws has a first mixing zone having a total length of about 4 L/D to about 6 L/D, a second mixing zone having a total length of 2.5 L/D to 3.5 L/D, and a third mixing zone having a total length of about 2.5 L/D to about 4.5 L/D.

Abstract: The present disclosure relates to a method of forming a composition including forming a polymer melt in a melt feeder. The melt feeder is coupled with an extruder. The method includes introducing the polymer melt from the melt feeder to the extruder at a first location of the extruder. The method includes extruding the polymer melt through the extruder via a plurality of intermeshing screws disposed within the extruder. The method includes introducing a coupling agent to the extruder at a second location of the extruder.

Abstract: A variety of methods/systems/apparatus/compositions are disclosed, including, in one embodiment, a method including introducing a polymeric material, an unsaturated compound, and an olefin cross metathesis catalyst into a reactor, wherein the polymeric material comprises a carbon black filler; reacting at least a portion of the polymeric material with the unsaturated compound in the presence of the olefin cross metathesis catalyst to produce at least metathesis oil and metathesis carbon black, wherein the metathesis oil comprises an olefin cross metathesis product of the polymeric material and the unsaturated compound; and separating at least a portion of the metathesis carbon black.

Abstract: Polymer compositions and films are provided. The polymer compositions include (A) 10-50 wt % heterogeneously branched Ziegler-Natta-catalyzed LLDPE polymer having a composition distribution breadth index (CBDI) <50.0%; and (B) 90-50 wt % metallocene-catalyzed LLDPE polymer having melt index 0.5 g/10 min to 5.0 g/10 min; melt index ratio from 20 to 40; weight average molecular weight (Mw) of from 20,000 to 200,000 g/mol; a molecular weight distribution (Mw/Mn) from 2.0 to 4.5; density 0.910 to 0.925 g/cm3; CDBI less than 35.0%; and comonomer distribution such that a first peak and a second peak in a comonomer distribution analysis, wherein the first peak has a maximum at a log(Mw) value of 4.3 to 4.7 and a TREF elution temperature of 85.0° C. to 95.0° C. and the second peak has a maximum at a log(Mw) value of 5.1 to 5.6 and a TREF elution temperature of 60.0° C. to 70.0° C.

Abstract: Thermoplastic elastomer compositions comprising brominated isobutylene paramethyl-styrene terpolymers, one or more thermoplastic polyolefins, optionally, one or more soft thermoplastic elastomers, and a curing system to form such thermoplastic elastomeric compositions that are suitable for use in pharmaceutical articles.

Abstract: The present disclosure relates to extruder systems and processes thereof. In at least one embodiment, a method of forming a thermoplastic vulcanizate (TPV) composition includes introducing a thermoplastic polymer to an extruder through a feed throat. The elastomeric polymer is introduced to a melt feeder and an elastomeric polymer melt including the elastomeric polymer is formed. The melt feeder is coupled to the extruder. Elastomeric polymer melt from the melt feeder is introduced to the extruder. The thermoplastic polymer and the elastomeric polymer melt are fed separately to the extruder. The thermoplastic polymer and the elastomeric polymer melt in the extruder are mixed with a plurality of intermeshing screws having a plurality of mixing zones.

Abstract: This invention relates to sulfur, vulcanization accelerator and carbon black master batch formulations comprising either a semi-crystalline propylene-olefin copolymer or a combination of a semi-crystalline propylene-olefin copolymer and a hydrocarbon resin. The semi-crystalline propylene-olefin copolymer or the combination of semi-crystalline propylene-olefin copolymer and hydrocarbon resin imparts a high hardness property to the carbon black, sulfur and accelerator master batch formulations thereby preventing pellet agglomeration during storage and allowing for ease in material handling.

Abstract: Polymer compositions and films are provided. The polymer compositions include (A) 10-50 wt % heterogeneously branched Ziegler-Natta-catalyzed LLDPE polymer having a composition distribution breadth index (CBDI)<50.0%; and (B) 90-50 wt % metallocene-catalyzed LLDPE polymer having melt index 0.5 g/10 min to 5.0 g/10 min; melt index ratio from 20 to 40; weight average molecular weight (Mw) of from 20,000 to 200,000 g/mol; a molecular weight distribution (Mw/Mn) from 2.0 to 4.5; density 0.910 to 0.925 g/cm3; CDBI less than 35.0%; and comonomer distribution such that a first peak and a second peak in a comonomer distribution analysis, wherein the first peak has a maximum at a log(Mw) value of 4.3 to 4.7 and a TREF elution temperature of 85.0° C. to 95.0° C. and the second peak has a maximum at a log(Mw) value of 5.1 to 5.6 and a TREF elution temperature of 60.0° C. to 70.0° C.

Abstract: Polymer compositions including (A) 15.0 to 90.0 wt % of a heterogeneously branched ethylene polymer having polymer units derived from at least one C3-C20 alpha-olefin and having a CBDI<50.0%; and (B) 85.0 to 10.0 wt. % of an ethylene-based polymer and films made therefrom are disclosed.

Abstract: The present invention relates to a branched modifier and a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g?vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g?vis of 0.70 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 4.0 or more; d) a shear thinning ratio of 110 or more, e) a melt strength of 10 cN or more; f) a complex viscosity at 0.1 rad/sec at 190° C. of at least 130,000 Pa·s; and g) a phase angle of Z° or less where Z=138.3G*(?0.142), where G* is the complex modulus reported in Pascals measured at 190° C. and the phase angle units are reported in degrees, wherein the G* is from 1,000 to 1,000,000 Pa.

Abstract: A crack-resistant article comprising a diene terpolymer, the diene terpolymer comprising (or consisting essentially of) from 0.01 wt % to 10.0 wt % diene derived units, and 1.0 wt % to 20 wt % of C4 to C10 ?-olefin derived units based on the weight of the diene terpolymer, wherein the diene terpolymer: a) has a g?vis of less than 0.90; b) has an Mw within a range of from 100,000 g/mol to 500,000 g/mol; c) has an Mw/Mn within the range of from 3.5 to 12.0; and d) an Mz/Mn of greater than 7.0. Inventive articles comprise a blend of a relatively high density linear polyethylene and the diene terpolymer.

Abstract: A foamable or foamed article comprising a diene terpolymer, the diene terpolymer comprising (or consisting essentially of) from 0.01 wt % to 10.0 wt % diene derived units, and 1.0 wt % to 20 wt % of C4 to C10 ?-olefin derived units based on the weight of the diene terpolymer, wherein the diene terpolymer: a) has a g?vis of less than 0.90; b) has an Mw within a range of from 100,000 g/mol to 500,000 g/mol; c) has an Mw/Mn within the range of from 3.5 to 12.0; and d) an Mz/Mn of greater than 7.0. Inventive articles comprise a blend of a relatively high density linear polyethylene and the diene terpolymer.

Abstract: A method of forming a finished film comprising extruding a molten polyethylene comprising a diene terpolymer modifier through a die opening to form a film, wherein the diene-terpolymer modifier is a terpolymer comprising ethylene-derived units, C3 to C10 ?-olefin derived units, and diene-derived units; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to allow relaxation of the molten polyethylene prior to solidification and/or crystallization upon cooling; and isolating a finished film therefrom. Desirably, the polyethylene is a linear low density polyethylene, and the die and cooling is suitable for forming a blown film.

Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.

Abstract: This disclosure relates to films particularly suitable for stretch hood applications. More particularly, this disclosure relates to multi-layer films particularly suitable for stretch hood applications comprising an inner layer that includes a blend of a propylene-based elastomer and a polyethylene having long-chain branching.

Abstract: The present invention relates to a branched modifier and a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g?vis of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g?vis of 0.70 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 4.0 or more; d) a shear thinning ratio of 110 or more, e) a melt strength of 10 cN or more; f) a complex viscosity at 0.1 rad/sec at 190° C. of at least 130,000 Pa·s; and g) a phase angle of Z° or less where Z=138.3G*(?0.142), where G* is the complex modulus reported in Pascals measured at 190° C. and the phase angle units are reported in degrees, wherein the G* is from 1,000 to 1,000,000 Pa.

Abstract: A method of forming a finished film comprising extruding a molten polyethylene comprising a diene terpolymer modifier through a die opening to form a film, wherein the diene-terpolymer modifier is a terpolymer comprising ethylene-derived units, C3 to C10 ?-olefin derived units, and diene-derived units; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to allow relaxation of the molten polyethylene prior to solidification and/or crystallization upon cooling; and isolating a finished film therefrom. Desirably, the polyethylene is a linear low density polyethylene, and the die and cooling is suitable for forming a blown film.

Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.

Abstract: A polyethylene composition including the product of the combination of at least one copolymer made from units derived from at least 85 wt % ethylene and a C3 to C10 ?-olefin and from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer is provided.

Abstract: A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.