公开(公告)号：US10100135B2

公开(公告)日：2018-10-16

申请号：US15318010

申请日：2015-06-11

申请人： Total Research & Technology Feluy

发明人： Aurelien Vantomme ,  Christopher Willocq ,  Alexandre Welle ,  Martine Slawinski

IPC分类号： C08F4/02 ,  C08F4/6592 ,  C08F10/02 ,  C08F4/659

摘要： Processes for preparing a polyethylene in at least one continuously stirred tank reactor are described herein. The process may comprise 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 the 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 μm to 18 μm, 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. Polyethylene obtained by the disclosed process and articles comprising the polyethylene are also described.

公开(公告)号：US20170114159A1

公开(公告)日：2017-04-27

申请号：US15318010

申请日：2015-06-11

申请人： Total Research & Technology Feluy

发明人： Aurelien Vantomme ,  Christopher Willocq ,  Alexandre Welle ,  Martine Slawinski

IPC分类号： C08F10/02

CPC分类号： C08F10/02 ,  C08F4/02 ,  C08F4/025 ,  C08F4/65916 ,  C08F4/6592 ,  C08F110/02 ,  C08F2420/04 ,  C08F2500/05 ,  C08F2500/18 ,  C08F4/65927 ,  C08F2/14 ,  C08F2500/24 ,  C08F2500/07

摘要： Processes for preparing a polyethylene in at least one continuously stirred tank reactor are described herein. The process may comprise 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 the 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 μm to 18 μm, 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. Polyethylene obtained by the disclosed process and articles comprising the polyethylene are also described.

公开(公告)号：US20210284767A1

公开(公告)日：2021-09-16

申请号：US16330641

申请日：2017-09-07

申请人： Total Research & Technology Feluy

发明人： Alexandre Welle ,  Aurélien Vantomme ,  Jean-François Carpentier ,  Gilles Schnee ,  Olivier Miserque ,  Evgueni Kirillov

IPC分类号： C08F110/02 ,  C08L23/08 ,  C08F4/6592 ,  C08F4/659

摘要： The present invention relates to a new process for preparing a polyethylene using new bis(metallocene) compounds in catalyst compositions. The bis(metallocene) compounds of the invention are homo- or hetero bis(metallocene) molecules in which same or different metallocene moieties are connected by a phenylene bridge. The phenylene bridge is either para-substituted, meta-substituted or ortho-substituted by the two metallocene moieties.

公开(公告)号：US10696774B2

公开(公告)日：2020-06-30

申请号：US14903302

申请日：2014-07-09

申请人： TOTAL RESEARCH & TECHNOLOGY FELUY

发明人： Olivier Lhost ,  Aurélien Vantomme ,  Alexandre Welle

IPC分类号： C08F210/06 ,  C08F293/00 ,  B32B27/08 ,  B32B27/32 ,  C08F4/6592 ,  C08F4/659

摘要： 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−18° 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.

公开(公告)号：US20190002603A1

公开(公告)日：2019-01-03

申请号：US16126243

申请日：2018-09-10

申请人： Total Research & Technology Feluy

发明人： Aurelien Vantomme ,  Christopher Willocq ,  Alexandre Welle ,  Martine Slawinski

IPC分类号： C08F10/02 ,  C08F4/02 ,  C08F110/02

摘要： Processes for preparing a polyethylene in at least one continuously stirred tank reactor are described herein. The process may comprise 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 the 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 μm to 18 μm, 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. Polyethylene obtained by the disclosed process and articles comprising the polyethylene are also described.

公开(公告)号：US09688792B2

公开(公告)日：2017-06-27

申请号：US14725540

申请日：2015-05-29

申请人： TOTAL RESEARCH & TECHNOLOGY FELUY

发明人： Alexandre Welle ,  Jeroen Wassenaar ,  Martine Slawinski

IPC分类号： C08F4/6592 ,  C08F10/14 ,  C07F17/00 ,  C08F110/14 ,  C08F4/659 ,  C07C2/34 ,  C07C5/03 ,  B01J31/22

CPC分类号： C08F110/14 ,  B01J31/2295 ,  B01J2531/48 ,  C07C2/34 ,  C07C5/03 ,  C07C2521/04 ,  C07C2521/08 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/755 ,  C07C2523/882 ,  C07C2531/14 ,  C07C2531/22 ,  C07F17/00 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65927 ,  C08F10/14 ,  C08F210/14 ,  C08F2500/02 ,  C08F2500/17 ,  C07C11/02 ,  C07C9/22

摘要： A process may include contacting an olefin monomer and a racemic bridged metallocene catalyst at a temperature of 80° C. to 150° C. in the presence of hydrogen. The racemic bridged metallocene catalyst may include a metallocene compound (A) and an activator component (B). The process may include recovering an effluent containing polyalpha-olefins (PAOs). The metallocene compound (A) may be represented by the formula R(Cp1)(Cp2)MX1X2. In the formula, R may be a C1-C20 alkylene bridging group; Cp1 and Cp2 may be the same or different substituted or unsubstituted tetrahydroindenyl rings; M may be a transition metal; and X1 and X2 may be independently selected from hydrogen, halogen, hydride radicals, hydrocarbyl radicals, substituted hydrocarbyl radicals, halocarbyl radicals, substituted halocarbyl radicals, silylcarbyl radicals, substituted silylcarbyl radicals, germylcarbyl radicals, substituted germylcarbyl radicals.