Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Zurn Pex, Inc.

Bryan Robert Chapman

Bruce R Lundmark

Wen Li

Chon-Yie Lin

Michael Brian Kelly

Chia Yung Cheng

James Norris Coffey

Manika Varma-Nair

David B Dunaway

Henry Wu-Hsiang Yang

Robert J Wittenbrink

Jeffrey Theodore Zudock

Patrick Brant

Sudhin Datta

Margaret M Wu

David John Lohse

Sandra Denise Schregenberger

Mun Fu Tse

Bruce Alan Harrington

Norman Yang

Chon Yie Lin

Petra Eiselt

Galina Ourieva

Henry W Yang

William Michael Ferry

Gary Lee Runyan

Robert G Russell

Rodney Mize

Andy Haishung Tsou

Gabor Kiss

Narayanaswami R Dharmarajan

Lisa Saunders Baugh

Enock Berluche

Prasadarao Meka

Alan Anthony Galuska

Eric Paul Jourdain

Robert Patrick Reynolds, Jr

Alistair Duncan Westwood

Robert P Reynolds

Donald Sheley Tracey

John W Chu

Anthony Poloso

Srivatsan Srinivas Iyer

Jeffrey Valentage

Michael Charles Bulawa

Gerd Arthur Allermann

Yann Devorest

Jared Michael Hill

Gerd Arthur Allenmann

Olivier Georjon

Bruce A Harrinton

William M Ferry

Alistair D Westwood

Jeffery Zudock

Chon Y Lin

A method for producing a high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Crosslinked polyethylene process

The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin, a non-functionalized hydrocarbon plasticizer and a slip agent.

Polypropylene based fibers and nonwovens

This invention relates to a film or sheet and a process to make a film or sheet having a thickness of 0.5 to 35 mils comprising a blend composition comprising: a) 4 to 50 wt % of one or more polypropylene-based TPO(s); and b) 30 to 80 wt % of one or more ethylene plastomer(s); and c) 0.5 to 35 wt % of one or more non-functionalized plasticizer(s) having a kinematic viscosity at 100&#xb0; C. of 4 to 300 cSt, a pour point of &#x2212;20&#xb0; C. or less, and a flash point of 200&#xb0; C. or more; and d) 0 to 69.5 wt % of one or more filler(s); and wherein the blend composition is calendered into a film or sheet.

Calendered films of plasticized blends of plastomer and impact copolymer

The present invention relates to plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Plasticized polyolefin compositions

The present invention relates to fibers and nonwovens made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Fibers and nonwovens from plasticized polyolefin compositions

Plastic toughened plastics include a polymer composition having a polypropylene component and a second polymer component. The polypropylene component is present in an amount from about 50 to about 95 weight percent based on the total weight of the blend. The second polymer component is present in an amount from about 5 to about 50 weight percent based on the total weight of the blend, is a BOCD or BCD blend of at least two ssPE components, and has an overall density greater than about 0.90 g/cm. Optionally, the plastic toughened plastics include one or more third polymer component selected from propylene-olefin elastomers and ethylene-propylene rubbers, which are present in an amount from about 1 to about 50 weight percent, based on the total weight of the blend.

Plastic toughened plastics

A high strength, flexible crosslinked polyethylene (PEX) material is provided wherein the base polymer is intermixed with a polymer modifier which affects the amorphous region of the polymer, leaving the crystalline portion of the base polymer virtually unaffected. Consequently, the amorphous region's density is lowered, resulting in a more flexible final product, while the crosslinked molecular structure and/or crystalline portion of the polymer, which controls the strength of the base polymer, remains strong. The polymer modifier can comprise a hydrocarbon fluid such as PAO, Group III basestocks, or a gas-to-liquid hydrocarbon. A method for producing the plastic material is also provided. The plastic material has particular utility in the production of tubing, piping, and conduits for transporting gases, liquids, and the like, as well as wire and cable coatings such as jacketing and insulation.

Crosslinked polyethylene articles and processes to produce same

This invention relates to a polymer composition comprising a blend comprising:

Polymer compositions comprising cyclic olefin polymers, polyolefin modifiers and non-functionalized plasticizers

This invention relates to hetero-phase polyolefin compositions comprising: a) 30 to 99.7 wt % of a polypropylene-based TPO comprising at least 50 wt % propylene and at least 10 wt % ethylene, and b) 0.1 to 20 wt % of one or more non-functionalized plasticizer, and c) 0.2 to 50 wt % of one or more filler; based upon the weight of the composition, and having: i) an MFR of 5 dg/min or more, and ii) a flexural modulus of 500 MPa or more, and iii) a notched Charpy impact strength at &#x2212;30&#xb0; C. of 1 kJ/mor more or a notched Izod impact strength at &#x2212;18&#xb0; C. of 50 J/m or more. These compositions are especially useful in applications such as automotive parts that demand both high stiffness and high impact toughness, as well as good processibility during fabrication.

Plasticized hetero-phase polyolefin blends

A process for fluid phase in-line blending of plasticized polymers is provided. The process includes providing two or more reactor trains configured in parallel and a separator for product blending and product-feed separation, wherein one or more of the reactor trains produces one or more polymers and one or more of the reactor trains produces one or more plasticizers; contacting in at least one of the parallel reactor trains olefin monomers, catalyst systems, optional comonomers, optional scavengers, and optional diluents or solvents, at a temperature above the solid-fluid phase transition temperature of the polymerization system and a pressure no lower than 10 MPa below the cloud point pressure of the polymerization system and less than 1500 MPa; forming a reactor effluent including a homogeneous fluid phase polymer-monomer mixture and plasticizer-monomer mixture in each parallel reactor train; passing the reactor effluents through the separator; maintaining the temperature and pressure within the separator above the solid-fluid phase transition point but below the cloud point pressure and temperature to form a fluid-fluid two-phase system including a plasticized polymer-rich blend phase and a monomer-rich phase; and separating the monomer-rich phase from the plasticized polymer-rich blend phase. The polymer-rich blend phase is conveyed to a downstream finishing stage for further monomer stripping, drying and/or pelletizing to form a plasticized polymer product blend. Suitable plasticizers for in-line production and blending include polyalphaolefin oligomers, polybutenes, low glass transition temperature polymers and combinations thereof.

In-line process for producing plasticized polymers and plasticized polymer blends

The present invention relates to articles made from plasticized polyolefin compositions comprising a polyolefin and a non-functionalized hydrocarbon plasticizer.

Articles from plasticized polyolefin compositions

The present invention relates to a composition comprising more than 25 weight % (based on the weight of the composition) of one or more ethylene polymers having an Mof 20,000 g/mole or more and at least 0.1 weight % of a liquid hydrocarbon modifier where the modifier has:

Modified polyethylene compositions

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Annandale, NJ, United States of America

Bryan Robert Chapman