Dow Global Technolgoies LLC

Alfred E Vigil, Jr

Teresa Plumley Karjala

Lori L Kardos

Wallace W Yau

Mehmet Demirors

Sarat Munjal

Sean W Ewart

Jose Ortega

Chester J Kmiec

Robert F Eaton

Christopher R Eddy

Anny L Flory

Michael L Smith

Frances Olajide, Jr

The invention provides a composition comprising an ethylene-based polymer and wherein the ethylene-based polymer has the following properties: (A) a CO content from greater than 0 to less than 10 weight percent CO (carbon monoxide), based on the weight of the polymer, and (B) a melt index (I2) from 0.1 to less than 3 g/10 min; and (C) a density from 0.923 to 0.928 g/cc; and wherein the ethylene-based polymer has a melting point, Tm, in &#xb0; C., that meets the following relationship: Tm (&#xb0; C.)&#x3c;601.4*(Density N in g/cc)&#x2212;447.8&#xb0; C.

Compositions comprising ethylene-carbon monoxide copolymers

An ethylene-based polymer, which is a low density polyethylene (LDPE), obtained by free radical polymerization of ethylene, and wherein the LDPE has a GPC parameter 'LSP' less than 1.60. An ethylene-based polymer that comprises the following features: An ethylene-based polymer that comprises the following features:

Ethylene-based polymers and processes to make the same

The invention provides a process to form an ethylene-based polymer composition, the process comprising at least the following: Step 1: polymerizing a first ethylene-based polymer in the presence of at least one molecular catalyst and a hydrocarbon chain transfer agent, and at a polymerization pressure of at least 14,000 psi; Step 2: polymerizing a second ethylene-based polymer.

Processes to prepare ethylene-based polymer compositions

The present disclosure provides a process for producing low density polyethylene with a dissipation factor less than or equal to 1.48&#xd7;10radian at 2.47 GHz. The process includes free radical high pressure polymerization of ethylene and separation of the unreacted species from the resultant polyethylene to form a recycle stream. The process further includes purging dissipative components from the recycle stream. The purged recycle stream is then introduced into the polymerization reactor.

Low density polyethylene with low dissipation factor and process for producing same

A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor.

Process to make long chain branched (LCB), block, or interconnected copolymers of ethylene

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Houston, TX, United States of America

Alfred E Vigil, Jr