Total Research & Technology Feluy

Total Petrochemicals Research Feluy

Fina Technology, Inc.

Totalenergies Onetech Belgium

Aurélien Vantomme

Christopher Willocq

Daniel Siraux

Martine Slawinski

Alain Van Sinoy

Alain Standaert

Alexandre Welle

Armelle Sigwald

Eric Damme

Jean-Marie Boissiere

Jean-Léon Gielens

Eric Maziers

Louis Fouarge

Renaud Oreins

Pierre Belloir

Alvaro Fernandez

Virginie Cirriez

Daan Dewachter

Jurjen Meeuwissen

Romain Luijkx

Pierre Bernard

Jerome Bette

Jacques Michel

Olivier Lhost

Olivier Miserque

David Ribour

Kristien Roegiers

Yves Trolez

Serge Eon

Thomas Coustham

Antonio Guinovart

Elodie Perche

Jerôme Bette

Vinciane Jonnieaux

Jérôme Thierry-Mieg

Mazad Khan-Jeaudeen

The invention relates to a polypropylene composition comprising: The present invention also relates to a process for the preparation of said polypropylene composition. The present invention also relates to an article comprising said polypropylene composition.

Polypropylene compositions

The present invention relates to a polyethylene resin prepared using a continuous process having and at least one metallocene catalyst composition: The present invention also relates to articles comprising said polyethylene resin as well as process for preparing said resin.

Polyethylene resins

The present invention relates to a catalyst composition comprising: The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.

Dual catalyst composition

The present invention relates to a polyethylene resin suitable for preparing moulded articles, such as caps and closures. The invention provides in particular a polyethylene resin comprising at least two polyethylene fractions A and B, wherein said polyethylene resin has a melt index (MI2), of at least 3.0 g/10 min to at most 5.5 g/10 min as measured according to ISO 1133, condition D, at 190&#xb0; C. and under a load of 2.16 kg, and a density of at least 0.955 g/cmto at most 0.965 g/cmas measured according to ISO 1183 at 23&#xb0; C., and a molecular weight distribution M/Mwhich is at most 7.0, as determined by gel permeation chromatography, with Mbeing the weight-average molecular weight and Mbeing the number-average molecular weight; and wherein said polyethylene fraction A has a high load melt index (HLMI), as measured according to ISO 1133:1997 condition G at 190&#xb0; C. and under a load of 21.6 kg, of at least 10.5 and a melt index (MI2) of at least 0.5 g/10 min to at most 1.5 g/10 min as measured according to ISO 1133, condition D, at 190&#xb0; C. and under a load of 2.16 kg. The invention further relates to a process for preparing said polyethylene resin, to a cap or closure comprising said polyethylene, and to a process for producing such a cap or closure.

Polyethylene resin and caps or closures made therefrom

The present invention relates to an injection-molded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the at least one metallocene-catalyzed polyethylene resin comprises: at least 40% to at most 50% by weight of polyethylene fraction A based on the total weight of the at least one metallocene-catalyzed polyethylene resin, wherein fraction A has a melt index MI2 of at least 100.0 g/10 min as determined according to ISO 1133, condition D, at 190&#xb0; C. and under a load of 2.16 kg; andwherein the at least one metallocene-catalyzed polyethylene resin has a density of at least 0.940 g/cmto at most 0.950 g/cmas measured on pellets according to ISO 1183 at 23&#xb0; C.; a melt index MI2 of at least 1.4 g/10 min to at most 2.5 g/10 min as measured on pellets according to ISO 1133, condition D, at 190&#xb0; C. and under a load of 2.16 kg. The present invention also relates to a process for preparing said injection-molded article, comprising the steps of a) providing at least one metallocene-catalyzed polyethylene resin as described herein; and b) injection-molding said polyethylene resin into an article.

Injection-molded articles comprising metallocene-catalyzed polyethylene resin

The invention relates to a composition comprising a rubber-modified monovinylaromatic polymer comprising:

Monovinlyaromatic polymers compositions comprising high viscosity metallocene catalyzed poly-alpha-olefin additives

A propylene-comonomer block copolymer may have a molecular weight distribution Mw/Mn of at least 1.7, a percentage of enthalpy measured between Ti and [Tm&#x2212;18&#xb0; C.] of at least 20% of the total enthalpy, and a ratio E1/Co of at least 0.80. The propylene-comonomer block copolymer may be produced by polymerizing propylene in the presence of at least one comonomer and a bridged metallocene catalyst. The bridged metallocene catalyst may include bridged fluorenyl, bridged indenyl metallocene, or any combination thereof. The propylene-comonomer block copolymer may be used as a heat seal layer for biaxially oriented multi-layer films.

Propylene copolymer for BOPP heat seal film layers

The invention covers a supported catalyst system prepared according to a process comprising the following step:

Modified catalyst supports

The present invention relates to a rotomolded article, comprising at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: The present invention also relates to a process for preparing said rotomolded article.

Rotomolded articles comprising metallocene-catalyzed polyethylene resin

The present invention relates to a process for preparing a polyethylene product having a multimodal molecular weight distribution, said process comprising the steps of: (a) feeding ethylene monomer, a diluent, at least one metallocene catalyst, optionally hydrogen, and optionally one or more olefin co-monomers into a first slurry loop reactor; and polymerizing the ethylene monomer, and the optionally one or more olefin co-monomers, in the presence of said at least one metallocene catalyst, and optionally hydrogen, in said first slurry loop reactor thereby producing a first polyethylene fraction; (b) feeding the first polyethylene fraction to a second slurry loop reactor serially connected to the first slurry loop reactor, and in the second slurry loop reactor polymerizing ethylene, and optionally one or more olefin co-monomers, in the presence of the first polyethylene fraction, and optionally hydrogen, thereby producing a second polyethylene fraction; and (c) feeding the second polyethylene fraction to a gas phase reactor serially connected to the second slurry loop reactor, and in the gas phase reactor polymerizing ethylene, and optionally one or more olefin co-monomers, in the presence of the second polyethylene fraction, and optionally hydrogen, thereby producing the polyethylene product, wherein at least 25% by weight of the polyethylene product is prepared in the first slurry loop reactor.

Process for preparing a polyethylene product

The present invention relates to a rotomolded article, comprising at least one layer, wherein said at least one layer comprising comprises at least one metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B; and at least one ionomer; wherein the polyethylene resin comprises:  The present invention also relates to a process for preparing said rotomolded article.

Rotomolded articles comprising at least one layer comprising a metallocene-catalyzed polyethylene resin

The present invention relates to a polypropylene composition comprising: a first polypropylene homopolymer or random copolymer (PPR1) having a comonomer content lower than the comonomer content of the second polypropylene, a second polypropylene (PPR2) which is a random copolymer of propylene and of the comonomer; said comonomer being an alpha-olefin different from propylene, the melting temperature of the polypropylene composition (T(PPR)) being defined as T(PPR)&#x3e;165&#x2212;6.9*[total comonomer content]&#x2212;8.4*[comonomer content of the first polypropylene], the difference between the melting temperature and the crystallization temperature of the polypropylene composition ranges from 27 and 33, and a xylene soluble fraction (XS) at 23&#xb0; C. of not more than 1.5 wt. %. The present invention also relates to a process for the preparation of said polypropylene composition. The present invention further relates to the use of said polypropylene composition for producing films or moulded articles.

Bimodal polypropylene and process for the preparation thereof

An uncompounded particulate metallocene-produced polyethylene can have a multimodal molecular weight distribution and particle size distribution measured by obtaining at least four fractions by sieving. A set of Mw values including an Mw value for each fraction can be obtained. A set of Mn values including an Mn value for each fraction can be obtained. A ratio between a standard deviation value of the Mw set and a mean value of the Mw set can be equal to or less than 0.15. A ratio between a standard deviation value of the Mn set and a mean value of the Mn set can be equal to or less than 0.15. The uncompounded particulate metallocene-produced polyethylene can be prepared by a process that includes polymerization in an apparatus. The apparatus can include at least three serially connected loop reactors.

Uncompounded particulate metallocene-produced polyethylene

The present invention relates to a metallocene-catalyzed polyethylene resin comprising at least two metallocene-catalyzed polyethylene fractions A and B, wherein the polyethylene resin comprises: The present invention also relates to an article comprising said resin.

Growing community of inventors

Bois-de-Villers, Belgium

Aurélien Vantomme