Fina Technology, Inc.

Total Research & Technology Feluy

Total Petrochemicals Research Feluy

Michael Musgrave

John Ashbaugh

Likuo Sun

Luyi Sun

Mahesh Patkar

Mark Miller

Jay Nguyen

Mohan R Gownder

Jerome Thierry-Mieg

Margarito Lopez

Scott Cooper

Lu Ann Kelly

Dang Le

David Smith

Carolyn Sheldon

Ann Kelly Lu

Polymer articles and processes of forming polymer articles are described herein. The processes generally include providing a propylene based polymer formed from a metallocene catalyst and melt processing the propylene based polymer to form a polymer article.

Polypropylene for reduced plate out in polymer article production processes

A method of preparing a thermoformed article which is relatively isotropic in terms of shrinkage of the final thermoformed article along the sheet extrusion flow path (the longitudinal direction) and the transverse direction. The article is prepared from an isotactic polypropylene produced by the polymerization of propylene with an isospecific metallocene catalyst. The polymer has a melt flow rate within the range of 1-5 grams/10 minutes and a melting temperature of no more than 160&#xb0; C. The polypropylene is extruded to provide a sheet which is oriented in at least one direction and has a thickness of 10-100 mils. The sheet is heated to a temperature of 135-160&#xb0; C, and thermoformed in contact with a template having the desired configuration to produce the thermoformed article. The thermoformed article is then cooled and retrieved from the template to arrive at the final product.

Transforming process

Injection stretch blow molded (ISBM) articles and methods of forming the same are provided herein. In one embodiment, the ISBM articles generally include a propylene based random copolymer having a molecular weight distribution of from about 9 to about 20. In another embodiment, the ISBM articles generally include a propylene based random copolymer formed from a Ziegler-Natta catalyst including a succinate internal donor.

Propylene based polymers for injection stretch blow molding

Polymer compositions and articles formed therefrom are described herein. The compositions include a random copolymer and a radiation additive, wherein the random copolymer includes propylene and less than 2 wt. % ethylene and exhibits a melt flow rate of from about 30 to 100 dg/min., the polymer composition exhibits a flexural modulus of from about 160 kpsi to about 200 kpsi and the polymer composition is adapted to produce a polymer article exhibiting low plate out, a haze at 20 mils of no greater than 15%, radiation stability and autoclavability.

Propylene polymers for lab/medical devices

A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C-C) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.

Properties of polyolefin blends and their manufactured articles

A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C&#x2013;C) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.

Bicomponent fibers of syndiotactic polypropylene and ethylene-propylene random copolymer, can be prepared. The bicomponent fibers may exhibit self-crimp properties and high shrinkage characteristics.

Bicomponent fibers of syndiotactic polypropylene

A polypropylene material is prepared from a blend of heterophasic propylene copolymers and propylene homopolymers. The material is prepared by blending the polymers while they are in a molten state, and forming a film or sheet from the polymer blend. The material has particular application to forming slit film tapes and similar materials. The resultant materials exhibit increased tenacity, elongation and toughness and greater surface roughness as compared to those materials prepared solely from propylene homopolymers.

Polyproplylene materials and method of preparing polypropylene materials

Bicomponent fibers of isotactic polypropylene and syndiotactic polypropylene, methods of making such fibers and products made thereof are disclosed. Embodiments of the bicomponent fibers can exhibit self-crimp properties and high shrinkage characteristics.

Bicomponent fibers of isotactic and syndiotactic polypropylene

Provided is pelletized polymer composition, a majority of which is poly-&agr;-olefin or poly-&agr;-olefin copolymer, which when melted displays melt flow rate greater than about 500 dg/min.

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Houston, TX, United States of America

Michael Musgrave