Dow Global Technolgoies LLC

Thomas W Karjala

Kim Louis Walton

Edmund M Carnahan

Gary Robert Marchand

Pradeep Jain

Colin Li Pi Shan

Curvel Hypolite

James C Stevens

Teresa Plumley Karjala

Charles F Diehl

Selim Yalvac

Daniel D VanderLende

Brian W Kolthammer

Edward O Madenjian

Jorge Rubalcaba

Jerzy Klosin

Yi Jin

Morgan Mark Hughes

Jeffrey D Weinhold

Yushan Hu

Colin LiPiShan

Rongjuan Cong

Liam P Spencer

Eddy I Garcia-Meitin

Brian W S Kolthammer

Lamy J Chopin, Iii

Wayde V Konze

Anthony J Castelluccio

Michael L Smith

Brandon Fails

James B Crim

Ludovicus J C Sluijts

Dean Lee

Jacob Veldman

Lamy J Chopin Iii

Ludovicus Jc Sluijts

A process to form a block copolymer comprising two or more regions or segments of differentiated polymer composition or properties, including feeding a first mixture that includes a chain shuttling agent, a solvent, the one or more monomers, and optionally hydrogen into a first reactor or reactor zone, feeding a second mixture that includes at least one olefin polymerization catalyst and at least one cocatalyst into the first reactor or reactor zone, contacting the first mixture and the second mixture under polymerization conditions in the first reactor or reactor zone to form a reaction mixture that is characterized by the formation of polymer chains from the monomers, allowing polymerization to occur in the first reactor or reactor zone and/or a second reactor or reactor zone to form polymer chains that are differentiated from the polymer chains, such that the resultant polymer has two or more chemically or physically distinguishable blocks.

Process for adding a chain shuttling agent

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.

Process to form oil containing ethylene-based polymers

The invention provides a process to form a 'first composition comprising a first ethylene/&#x3b1;-olefin interpolymer and a second ethylene/&#x3b1;-olefin interpolymer,' said process comprising polymerizing a first mixture comprising ethylene, an &#x3b1;-olefin, and optionally a polyene, in a stirred tank reactor to form a first ethylene/&#x3b1;-olefin interpolymer, and transferring at least some of the first ethylene/&#x3b1;-olefin interpolymer to a loop reactor, and polymerizing, therein, a second mixture comprising ethylene, an alpha-olefin, and optionally a polyene, in the presence of the first ethylene/&#x3b1;-olefin interpolymer, to form the 'first composition comprising the first ethylene/&#x3b1;-olefin interpolymer and the second ethylene/&#x3b1;-olefin interpolymer.' The invention also provides a polymerization reactor configuration comprising at least the following: a stirred tank reactor followed by a loop reactor.

Process to form ethylene/alpha-olefin interpolymers

A composition includes (A) 30-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of Cand C&#x3b1;-olefins of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) a density of 0.90 g/cc or less, and (iii) an MFR of 1 g/10 min or greater (230&#xb0; C./2.16 kg); and (B) 5-70 wt % of a block composite nucleator comprising: (1) a first polymer that includes polypropylene; (2) a second polymer that includes an alpha-olefin based polymer, the alpha-olefin being selected from at least one of a Cand C&#x3b1;-olefins, and (3) a block copolymer having a first segment and a second segment, the first segment of the block copolymer having the same composition as the first polymer in the block composite nucleator and the second segment of the block copolymer having the same composition as the second polymer of the block composite nucleator.

Nucleation with a block composite nucleator

The invention provides a solution polymerization process to form an ethylene/&#x3b1;-olefin/nonconjugated polyene interpolymer, said process comprising polymerizing ethylene, an &#x3b1;-olefin, and a nonconjugated polyene in at least one reactor in the presence of a catalyst selected from Formula I, as described herein; and wherein the polymerization is conducted in a continuous process; and wherein the interpolymer has a rheology ratio (V0.1/V100 at 19&#xb0; C.) greater than, or equal to, 20.

Ethylene/alpha-olefin/nonconjugated polyene interpolymers and processes to form the same

The subject invention pertains to homogeneous liquid low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 10%, and a pour point, as measured by ASTM D97, of less than 50&#xb0; C. The subject invention also pertains to homogeneous gel-like low molecular weight ethylene/alpha-olefin polymers having a number average molecular weight (Mn) as determined by gel permeation chromatography, of less than 25,000, a total crystallinity, as measured by DSC, of less than 50%, and a pour point, as measured by ASTM D97, of less than 90&#xb0; C.

Liquid and gel-like low molecular weight ethylene polymers

Embodiments of the invention provide crystalline block composites and their use as compatibilizers.

Crystalline block composites as compatibilizers

Embodiments of the invention provide crystalline block composites and their use as compatibilizers. The crystalline block composites comprise i) a crystalline ethylene based polymer; ii) a crystalline alpha-olefin based polymer and iii) a block copolymer comprising a crystalline ethylene block and a crystalline alpha-olefin block.

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Lake Jackson, TX, United States of America

Thomas W Karjala