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公开(公告)号：US11724250B2
公开(公告)日：2023-08-15
申请号：US16575800
申请日：2019-09-19
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Lubin Luo , Edward J. Blok , Alan A. Galuska , Anupriya Jain , Alexander V. Zabula , Yen-Hao Lin
CPC classification number: B01J31/2213 , C08G61/08 , B01J2231/14 , B01J2231/543 , B01J2531/50 , B01J2531/60 , C08G2261/418
Abstract: A supported catalyst system is based on a transition metal carbene including the moiety M1=CR*)2, wherein M1 is the transition metal and R* is hydrogen or a C1-C8 hydrocarbyl. The catalyst system can be supported on a metal oxide support such as silica or the catalyst can be self-supporting. Methods of making the catalyst system can involve precursors based on and/or reacted with aluminum alkyls, halides, and/or alkoxides. Methods of polymerizing cyclic olefins with the catalyst system can obtain polyalkenamers, cyclic olefin polymers, cyclic olefin copolymers, and other metathesis reaction products. The supported catalyst and/or monomer can be recovered and recycled to the polymerization reactor.
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Patent Agency Ranking
公开(公告)号：US11034827B2
公开(公告)日：2021-06-15
申请号：US16379372
申请日：2019-04-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Lubin Luo , Xin Chen , Yen-Hao Lin , Anupriya Jain , Matthew S. Bedoya , Medrado M. Leal , Rebecca C. Savage , Rachel G. Terry , Sergey Yakovlev
Abstract: Heterophasic copolymers of propylene and an alpha olefin comonomer having a matrix phase and a fill phase, particularly, a heterophasic copolymer having a high fill phase content (greater than or equal to 50%), are provided herein. Polymerization methods and catalyst systems for producing such heterophasic copolymers are also provided.
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公开(公告)号：US20200094234A1
公开(公告)日：2020-03-26
申请号：US16575835
申请日：2019-09-19
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Lubin Luo , Edward J. Blok , Alan A. Galuska , Anupriya Jain , Alexander V. Zabula , Yen-Hao Lin
Abstract: A process to form a cyclic olefin polymerization catalyst which includes contacting a metal alkoxide with a transition metal halide to form a transition metal precatalyst, and contacting the transition metal precatalyst with a metal alkyl activator to form the activated catalyst comprising a transition metal carbene moiety. A cyclic olefin polymerization process is also disclosed.
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公开(公告)号：US20190330460A1
公开(公告)日：2019-10-31
申请号：US16379372
申请日：2019-04-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Lubin Luo , Xin Chen , Yen-Hao Lin , Anupriya Jain , Matthew S. Bedoya , Medrado M. Leal , Rebecca C. Savage , Rachel G. Terry , Sergey Yakovlev
Abstract: Heterophasic copolymers of propylene and an alpha olefin comonomer having a matrix phase and a fill phase, particularly, a heterophasic copolymer having a high fill phase content (greater than or equal to 50%), are provided herein. Polymerization methods and catalyst systems for producing such heterophasic copolymers are also provided.
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5.发明公开公开(公告)号：US20230242745A1
公开(公告)日：2023-08-03
申请号：US17999287
申请日：2021-05-20
Applicant: ExxonMobil Chemical Patents Inc
Inventor： Lubin Luo , Sudhin Datta , Andy H. Tsou , Jo Ann M. Canich , Yen-Hao Lin , Anupriya Jain , Jacqueline A. Lovell
CPC classification number: C08L23/12 , C08F4/65916 , C08F4/65912 , C08L2205/03 , C08L2205/025 , C08L2207/14 , C08L2207/02 , C08L2308/00 , C08L2314/06 , C08F2420/07 , C08F2420/02
Abstract: The present disclosure provides a catalyst system comprising the product of a catalyst compound capable of making crystalline material (such as isotactic PP) and a second catalyst compound capable of making non-diene-containing-amorphous material and diene-containing-elastomeric material. The catalyst system of the present disclosure may further comprise a support material (or product thereof) having one or more of: a surface area of from 400 m2/g to 800 m2/g; an average pore diameter of 90 Angstroms or greater; an average particle size of 60 μm or greater; 40% or greater of the incremental pore volume comprising pores having a pore diameter larger than 100 Angstroms or greater; and sub-particles having an average particle size in the range of 0.01 μm to 5 μm. In another embodiment, a propylene polymer composition includes: isotactic polypropylene; 5 wt % or greater of atactic polypropylene, based on the weight of the composition; and an ethylene-propylene-diene terpolymer. The present disclosure further provides methods for forming propylene polymer compositions.
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公开(公告)号：US20200094233A1
公开(公告)日：2020-03-26
申请号：US16575800
申请日：2019-09-19
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Lubin Luo , Edward J. Blok , Alan A. Galuska , Anupriya Jain , Alexander V. Zabula , Yen-Hao Lin
Abstract: A supported catalyst system is based on a transition metal carbene including the moiety M1=CR*)2, wherein M1 is the transition metal and R* is hydrogen or a C1-C8 hydrocarbyl. The catalyst system can be supported on a metal oxide support such as silica or the catalyst can be self-supporting. Methods of making the catalyst system can involve precursors based on and/or reacted with aluminum alkyls, halides, and/or alkoxides. Methods of polymerizing cyclic olefins with the catalyst system can obtain polyalkenamers, cyclic olefin polymers, cyclic olefin copolymers, and other metathesis reaction products. The supported catalyst and/or monomer can be recovered and recycled to the polymerization reactor.
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