Total Research & Technology Feluy

Seneffe, Belgium

Total Research & Technology Feluy

Seneffe, Belgium
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Patent
Total Research & Technology Feluy | Date: 2017-03-08

The present invention relates to a composition comprising: (a) at least one first polymer selected from the group consisting of poly-L-lactide- polybutadiene (PLLA-PB) block copolymer, poly-D-lactide-polybutadiene (PDLA-PB) block copolymer, poly-L-lactide-urethane-polybutadiene block copolymer, and poly-D-lactide- urethane-polybutadiene block copolymer; and (b) at least one second polymer selected from the group consisting of poly-L-lactide, poly- L-lactide-polybutadiene (PLLA-PB) block copolymer, poly-L-lactide-urethane- polybutadiene block copolymer, poly-L-lactide-urethane, poly-D-lactide, poly-D-lactide- polybutadiene (PDLA-PB) block copolymer, poly-D-lactide-urethane-polybutadiene block copolymer, poly-D-lactide-urethane, and mixture thereof, wherein when the at least one first polymer is poly-L-lactide-polybutadiene (PLLA-PB) block copolymer, or poly-L-lactide-urethane-polybutadiene block copolymer, then the at least one second polymer is selected from the group consisting of poly-D-lactide, or poly- D-lactide-polybutadiene (PDLA-PB) block copolymer, poly-D-lactide-urethane- polybutadiene block copolymer, poly-D-lactide-urethane, and mixture thereof, or wherein when the at least one first polymer is poly-D-lactide-polybutadiene block copolymer, or poly-D-lactide-urethane-polybutadiene block copolymer, then the at least one second polymer is selected from the group consisting of poly-L-lactide, or poly-L- lactide-polybutadiene block copolymer, poly-L-lactide-urethane-polybutadiene block copolymer, poly-L-lactide-urethane, and mixture thereof; wherein said composition comprises from 40 % to 99 % by weight of said second polymer based on the total weight of the composition. The present invention also relates to a process for preparing said composition. The present invention also relates to an article comprising said composition.


Patent
Total Research & Technology Feluy and French National Center for Scientific Research | Date: 2017-05-17

A method for preparing mesoporous microporous crystalline material involving at least one mesopore-templating agent, said mesopore-templating agent being soluble under the form of unimers and able to generate a micellization with temperature increase so that unimers assemble to form micellar aggregates, and the micellization being reversible with temperature change.


Patent
Total Research & Technology Feluy | Date: 2017-04-26

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: at least 25 % to at most 55 % by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a density at least 0.005 g/cm3 higher than the density of the polyethylene resin; and a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190 C and under a load of 2.16 kg; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.954 g/cm3 as measured according to ASTM D-1505 at 23 C; a melt index MI2 of at least 2.5 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190 C and under a load of 2.16 kg and a molecular weight distribution Mw/Mn of at least 2.6 to at most 4.2, with Mw being the weight-average molecular weight and Mn being the number-average molecular weight. The present invention also relates to an article comprising said resin.


Patent
Total Research & Technology Feluy | Date: 2017-03-08

The present invention relates to a composition comprising: (a) at least one first polymer selected from polylactide-polybutadiene (PLA-PB) block copolymer, polylactide-urethane-polybutadiene block copolymer, or a mixture thereof; and (b) at least one second polymer selected from polylactide, polylactide-urethane, or a mixture thereof; wherein the composition comprises from 20 % to 50 % by weight of said first polymer based on the total weight of the composition and from 50 % to 80 % by weight of said second polymer based on the total weight of the composition. The present invention also relates to a process for preparing said composition. The present invention also relates to an article comprising said composition.


The present invention is a process for dehydrating an alcohol to prepare corresponding olefin(s), comprising: (a) providing a feed (A) comprising at least an alcohol having at least 2 carbon atoms, and preferably at most 5 carbon atoms, or a mixture thereof optionally water, optionally an inert component, in a dehydration unit, (b) placing the feed (A) into contact with an acidic catalyst in a reaction zone of said dehydration unit at conditions effective to dehydrate at least a portion of the alcohol to make an olefin or a mixture of olefins having the same number of carbon atoms as the alcohol, (c) recovering from said dehydration unit an effluent (B) comprising : - an olefin or a mixture of olefins, - water, - undesired by-products including aldehydes and lighter products resulting from degradation of said aldehydes under the conditions of step (b), - optionally unconverted alcohol(s) if any, - optionally the inert component, wherein, said feed (A)-providing step (a) comprises adding an effective amount of one or more organic compound capable to reduce the undesired by-products by comparison with a non introduction of such compound, said organic compound being chosen among organic acids.


Patent
Total Research & Technology Feluy | Date: 2017-06-21

The present invention relates to a polypropylene composition for thermoforming comprising: from 50 % by weight to at most 90 % by weight of a polypropylene A, wherein polypropylene A is a polypropylene random copolymer, based on the total weight of the polypropylene composition; and from 10 % by weight to at most 50 % by weight of a polypropylene B, wherein polypropylene B is a polypropylene homopolymer, based on the total weight of the polypropylene composition; wherein the melt flow index of polypropylene B is at most 1.0 g/10min, as measured according to the method of standard ISO 1133, condition M, at 230 C and under a load of 2.16 kg; and wherein the ratio of the melt flow index of polypropylene A to the melt flow index of polypropylene B is at least 80.


Patent
Total Research & Technology Feluy | Date: 2017-04-26

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: at least 25% to at most 55% by weight of polyethylene fraction A based on the total weight of the polyethylene resin, wherein fraction A has a melt index MI2 of at least 25.0 g/10 min as determined according to ISO 1133, condition D, at 190C and under a load of 2.16 kg, and a density at least 0.005 g/cm 3 higher than the density of the polyethylene resin; and wherein the polyethylene resin has a density of at least 0.938 g/cm3 to at most 0.950 g/cm 3 as measured according to ASTM D-1505 at 23C; a melt index MI2 of at least 1.0 g/10 min to at most 25.0 g/10 min as determined according to ISO 1133, condition D, at 190C and under a load of 2.16 kg. The present invention also relates to a process for preparing said rotomolded article.


Patent
Total Research & Technology Feluy | Date: 2017-01-05

The invention relates to a process for preparing a cyclic ester or a cyclic amide, comprising the step of:


Patent
Total Research & Technology Feluy | Date: 2017-04-19

The present invention relates to a process for preparing a polyethylene in at least one continuously stirred tank reactor, comprising the step of: polymerizing ethylene in the presence of at least one supported metallocene catalyst, a diluent, optionally one or more co-monomers, and optionally hydrogen, thereby obtaining the polyethylene, wherein said supported metallocene catalyst comprises a solid support, a co-catalyst and at least one metallocene, wherein the solid support has a surface area within the range of from 100 to 500 m2/g, and has a D50 value within the range of from 4 m to 18 m, with D50 being defined as the particle size for which fifty percent by weight of the particles has a size lower than the D50; and D50 being measured by laser diffraction analysis on a Malvern type analyzer. The present invention also relates to polyethylene obtained by said process and to the articles comprising said polyethylene.


Patent
Total Research & Technology Feluy | Date: 2017-03-15

The invention relates to the use in an oligomerization reaction performed in the presence of hydrogen and at high temperature of a racemic bridged metallocene catalyst a metallocene compound (A) is represented by the formula R(Cp1)(Cp2) M X1 X2 wherein R is a C1-C20 alkylene bridging group; Cp1 and Cp2 are the same or different substituted or unsubstitued tetrahydroindenyl rings, wherein if substituted, the substitutions may be independent and/or linked to form multicyclic structures; M is a transition metal selected from the group consisting of titanium, zirconium and hafnium; X1 and X2 are independently hydrogen, halogen, hydride radicals, hydrocarbyl radicals, substituted hydrocarbyl radicals, halocarbyl radicals, substituted halocarbyl radicals, silylcarbyl radicals, substituted silylcarbyl radicals, germylcarbyl radicals, substituted germylcarbyl radicals; or both X1 and X2 are joined and bound to the metal atom to form a metallacycle ring containing from 3 to 20 carbon atoms; for the production of polyalpha-olefins.

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