公开(公告)号：US20200165366A1

公开(公告)日：2020-05-28

申请号：US16632240

申请日：2018-06-29

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Dongming Li ,  David M. Fiscus ,  Kevin A. Stevens ,  Ching-Tai Lue ,  Matthew W. Holtcamp

IPC: C08F210/16 ,  B29C48/00 ,  C08J5/18

Abstract: The present disclosure provides films made of polyethylene (PE) compositions. In at least one embodiment, a film includes a polyethylene composition, comprising: ethylene content and from 0 to 25 mol % of C3-C40 olefin comonomer content, based upon the total weight of the polyethylene composition, the polyethylene composition having a total internal plus terminal unsaturation greater than 0.7 unsaturations per 1000 carbon atoms, the film having: an Elmendorf Tear value in the machine direction of from 10 g/mil to 300 g/mil, and a Dart Drop Impact of from 100 g/mil to 800 g/mil. In at least one embodiment, the present disclosure provides for processes to make a film.

公开(公告)号：US20200172715A1

公开(公告)日：2020-06-04

申请号：US16692831

申请日：2019-11-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Nino Ruocco ,  David M. Fiscus ,  Summer J. Bernhardt ,  Bethany M. Welke ,  Joseph A. Throckmorton ,  Joseph A. Moebus ,  Tamara L. Blanton ,  Kimari T. M. Slaughter

IPC: C08L23/08 ,  C08J5/18

Abstract: This invention relates to blend, and films thereof, comprising: 1) semicrystalline cyclic olefin copolymer comprising less than 15 wt % of a C5-C40 cyclic olefin comonomer and greater than 85 wt % of a C2-C40 linear and/or branched olefin monomer content having a density of about 0.92 g/cm3 to about 0.94 g/cm3, modulus less than 20-80 kpsi, an elongation at break of 150-500%, and a glass transition temperatures less than 38° C.; 2) an amorphous cyclic olefin copolymer comprising more than 25 wt % of a C5-C40 cyclic olefin comonomer and less than 75 wt % of a C2-C40 linear and/or branched olefin monomer having a density greater than 1.0 g/cm3, a modulus of 260-380 kpsi, an elongation at break of

公开(公告)号：US20200172645A1

公开(公告)日：2020-06-04

申请号：US16692804

申请日：2019-11-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： David M. Fiscus ,  Peijun Jiang ,  Yong Yang

IPC: C08F210/02 ,  C08F232/08 ,  C08J5/18

Abstract: The present disclosure provides copolymers comprising from about 0.5 wt % to about 25 wt % cyclic olefin content and films comprising the copolymers. In one embodiment, a copolymer includes a C2-C40 monomer content of from about 75 wt % to about 99.5 wt %; and a C5-C40 cyclic olefin comonomer content of from about 0.5 wt % to about 25 wt %. The copolymer has a density of about 0.91 g/cm3 to about 0.933 g/cm3. Films of the present disclosure can have advantageous mechanical properties (such as melt strength) and optical properties (such as haze %).

公开(公告)号：US20180155474A1

公开(公告)日：2018-06-07

申请号：US15806100

申请日：2017-11-07

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Matthew W. Holtcamp ,  Ching-Tai Lue ,  Adriana S. Silva ,  Dongming Li ,  David M. Fiscus

IPC: C08F210/02 ,  C08J5/18

CPC classification number: C08F210/02 ,  B32B27/32 ,  B32B27/327 ,  C08J5/18 ,  C08J2323/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2314/06 ,  C08F210/16 ,  C08F4/65925 ,  C08F4/65927 ,  C08F4/65916 ,  C08F210/14 ,  C08F2500/05 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/26 ,  C08F4/65904

Abstract: A polyethylene useful for a film including ethylene derived units and within a range from 0.5 to 20 wt % of C3 to C12 α-olefin derived units, an I2 value within a range from 0.5 to 20 g/10 min, an I21 value within a range from 5 to 100 g/10 min, the polyethylene formed from a process comprising combining a bridged bis-cyclopentadienyl Group 4 metal catalyst, an unbridged bis-cyclopentadienyl Group 4 metal catalyst, and an activator with ethylene and within a range from 0.1 to 5 wt %, relative to the weight of all monomers, of a C3 to C12 α-olefin at a temperature within a range from 60 to 100° C.

公开(公告)号：US11952480B2

公开(公告)日：2024-04-09

申请号：US16763909

申请日：2019-02-05

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Johannes M. Soulages ,  Arnold Lustiger ,  Thomas T. Sun ,  Pamela J. Wright ,  Madhavi Vadlamudi ,  Alexander I. Norman ,  Adriana S. Silva ,  David M. Fiscus ,  Timothy D. Shaffer

IPC: C08L23/08 ,  B29C48/00 ,  B29C48/10 ,  C08J5/18 ,  B29K23/00 ,  B29K105/00

CPC classification number: C08L23/0815 ,  B29C48/022 ,  B29C48/10 ,  C08J5/18 ,  B29K2023/0625 ,  B29K2023/0683 ,  B29K2105/0088 ,  B29K2995/0063 ,  B29K2995/0077 ,  C08J2323/08 ,  C08J2423/08 ,  C08L2205/025 ,  C08L2207/066 ,  C08L2207/068

Abstract: In some embodiments, the present disclosure provides a composition comprising 1) about 97.5 wt % to about 99.9 wt % of a first polyethylene having a density of about 0.91 g/cm3 to about 0.94 g/cm3, and a melt strength of about 10 mN or greater; and 2) about 0.1 wt % to about 2.5 wt % of a second polyethylene having an Mw of about 500,000 g/mol or more. In some embodiments, the composition is a film. In some embodiments, the present disclosure provides a method of making a composition comprising blending a first polyethylene of any embodiment described herein and a second polyethylene of any embodiment described herein.

公开(公告)号：US20150368415A1

公开(公告)日：2015-12-24

申请号：US14649834

申请日：2013-12-04

Applicant: EXXONMOBIL CHEMICAL PATENTS INC.

Inventor： David M. Fiscus ,  Danny Van Hoyweghen

IPC: C08J5/18 ,  B29C47/00 ,  B29C47/06 ,  B32B27/32

CPC classification number: C08J5/18 ,  B29C47/0021 ,  B29C47/065 ,  B29K2023/06 ,  B29K2995/0064 ,  B29K2995/0081 ,  B29L2007/00 ,  B29L2009/00 ,  B32B27/32 ,  B32B27/327 ,  B32B2270/00 ,  B32B2307/558 ,  B32B2307/5825 ,  B32B2307/72 ,  C08J2323/06 ,  C08J2323/08 ,  Y10T428/269

Abstract: The present invention is directed to polyethylene films having improved properties. Particularly, relatively thick films having improved tear properties and methods of improving tear, and multilayer films having improved dart impact strength and methods of improving the Dart impact strength.

Abstract translation: 本发明涉及具有改进性能的聚乙烯薄膜。 特别是具有改善的撕裂性能的相对厚的膜和改善撕裂的方法，以及具有改进的落镖冲击强度的多层膜以及提高落镖冲击强度的方法。

公开(公告)号：US08829138B2

公开(公告)日：2014-09-09

申请号：US13856705

申请日：2013-04-04

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  David M. Fiscus

IPC: C08F210/02 ,  C08F210/14 ,  B32B27/32 ,  C08F210/16 ,  C08F4/52 ,  C08F297/08 ,  C08F299/00 ,  C08F4/659 ,  C08F4/6592

CPC classification number: C08F210/14 ,  B32B27/32 ,  C08F4/52 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F210/16 ,  C08F297/08 ,  C08F299/00 ,  Y10S526/943 ,  Y10T428/1345 ,  Y10T428/31938 ,  C08F2/34 ,  C08F4/6428 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/21

Abstract: This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.

公开(公告)号：US20130289213A1

公开(公告)日：2013-10-31

申请号：US13856729

申请日：2013-04-04

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Donna J. Crowther ,  David M. Fiscus

IPC: C08F210/14 ,  C08F299/00

CPC classification number: C08F210/14 ,  B32B27/32 ,  C08F4/52 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F210/16 ,  C08F297/08 ,  C08F299/00 ,  Y10S526/943 ,  Y10T428/1345 ,  Y10T428/31938 ,  C08F2/34 ,  C08F4/6428 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/21

Abstract: This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.

公开(公告)号：US20130231451A1

公开(公告)日：2013-09-05

申请号：US13856705

申请日：2013-04-04

Applicant: EXXONMOBIL CHEMICAL PATENTS INC.

Inventor： Donna J. Crowther ,  David M. Fiscus

IPC: C08F4/52

CPC classification number: C08F210/14 ,  B32B27/32 ,  C08F4/52 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65925 ,  C08F210/16 ,  C08F297/08 ,  C08F299/00 ,  Y10S526/943 ,  Y10T428/1345 ,  Y10T428/31938 ,  C08F2/34 ,  C08F4/6428 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/20 ,  C08F2500/21

Abstract: This invention relates to a process for polymerizing olefins in which the amount of trimethylaluminum in a methylalumoxane solution is adjusted to be from 1 to 25 mol %, prior to use as an activator, where the mol % trimethylaluminum is determined by 1H NMR of the solution prior to combination with any support. This invention also relates to a process for polymerizing olefins in which the amount of an unknown species present in a methylalumoxane solution is adjusted to be from 0.10 to 0.65 integration units prior to use as an activator, where the amount of the unknown species is determined by the 1H NMR spectra of the solution performed prior to combination with any support. Preferably, the methylalumoxane solution is present in a catalyst system also comprising a metallocene transition metal compound.

Abstract translation: 本发明涉及一种聚合烯烃的方法，其中在用作活化剂之前，将甲基铝氧烷溶液中的三甲基铝的量调节至1至25mol％，其中通过溶液的1 H NMR测定摩尔％的三甲基铝 在与任何支持组合之前。 本发明还涉及一种聚合烯烃的方法，其中存在于甲基铝氧烷溶液中的未知物质的量在使用前调节为0.10至0.65个整合单元作为活化剂，其中未知物质的量由 在与任何载体组合之前进行的溶液的1 H NMR光谱。 优选地，甲基铝氧烷溶液存在于还包含茂金属过渡金属化合物的催化剂体系中。

公开(公告)号：US11248113B2

公开(公告)日：2022-02-15

申请号：US16692804

申请日：2019-11-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： David M. Fiscus ,  Peijun Jiang ,  Yong Yang

IPC: C08F232/00 ,  C08F232/02 ,  C08F232/08 ,  C08L45/00 ,  C08F210/02 ,  C08L23/08 ,  C08J5/18 ,  C08F232/06 ,  C08F232/04

Abstract: The present disclosure provides copolymers comprising from about 0.5 wt % to about 25 wt % cyclic olefin content and films comprising the copolymers. In one embodiment, a copolymer includes a C2-C40 monomer content of from about 75 wt % to about 99.5 wt %; and a C5-C40 cyclic olefin comonomer content of from about 0.5 wt % to about 25 wt %. The copolymer has a density of about 0.91 g/cm3 to about 0.933 g/cm3. Films of the present disclosure can have advantageous mechanical properties (such as melt strength) and optical properties (such as haze %).