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61. 发明授权

US11649307B2 Modified Ziegler-Natta (pro) catalysts and system 有权
公开(公告)号：US11649307B2
公开(公告)日：2023-05-16
申请号：US17546916
申请日：2021-12-09
申请人： Dow Global Technologies LLC
发明人： Linfeng Chen , Mehmet Demirors
IPC分类号： C08F210/16 , C08F10/00 , C08F4/52
CPC分类号： C08F210/16 , C08F10/00 , C08F2410/04 , C08F210/16 , C08F4/6545 , C08F210/16 , C08F4/64193 , C08F210/16 , C08F210/14 , C08F2500/05
摘要： A modified Ziegler-Natta procatalyst that is a product mixture of modifying an initial Ziegler-Natta procatalyst with a molecular (pro)catalyst, and optionally an activator, the modifying occurring before activating the modified Ziegler-Natta procatalyst with an activator and before contacting the modified Ziegler-Natta procatalyst with a polymerizable olefin. Also, a modified catalyst system prepared therefrom, methods of preparing the modified Ziegler-Natta procatalyst and the modified catalyst system, a method of polymerizing an olefin using the modified catalyst system, and a polyolefin product made thereby.

62. 发明授权

US11649302B2 Magnesium halide-supported titanium (pro)catalysts 有权
公开(公告)号：US11649302B2
公开(公告)日：2023-05-16
申请号：US17482719
申请日：2021-09-23
申请人： Dow Global Technologies LLC
发明人： Linfeng Chen , Marc A. Springs , Mehmet Demirors
IPC分类号： C08F4/654 , C08F10/02 , C08F4/642 , C08F4/659 , C08F210/16
CPC分类号： C08F4/6543 , C08F4/6428 , C08F4/65912 , C08F4/65916 , C08F10/02 , C08F210/16 , C08F10/02 , C08F4/6543 , C08F10/02 , C08F4/6574
摘要： A magnesium halide-supported titanium procatalyst, a catalyst prepared therefrom, an enhanced catalyst consists essentially of a product of a reaction of the magnesium halide-supported titanium procatalyst and a hydrocarbylaluminoxane. Also methods of preparing the (pro)catalysts, a method of polymerizing an olefin, and a polyolefin made by the polymerization method.

63. 发明公开

US20230147444A1 PLASTOMER TOUGHENED/STIFFENED POLYOLEFIN MULTILAYER FILMS AND LAMINATES COMPRISING SAME 审中-公开
公开(公告)号：US20230147444A1
公开(公告)日：2023-05-11
申请号：US17762414
申请日：2020-09-29
申请人： Dow Global Technologies LLC
发明人： Elodie Hablot , Salma El Marrasse Zarioui , Peter Hermann Roland Sandkuehler
IPC分类号： B32B27/32 , B32B27/08 , B32B7/027 , B32B27/36 , B32B7/12 , B65D75/00 , C08L23/06
CPC分类号： B32B27/32 , B32B7/12 , B32B7/027 , B32B27/08 , B32B27/36 , B65D75/008 , C08L23/06 , B32B2250/24 , B32B2270/00 , B32B2274/00 , B32B2307/72 , B32B2307/516 , B32B2307/518 , B32B2307/546 , B32B2307/558 , B32B2307/732 , B32B2439/46 , C08L2205/02
摘要： The present disclosure provides for a multilayer film having a sealant layer and a first layer, where the first layer is formed from a first polyolefin composition, and a laminate that includes the multilayer film. The first polyolefin composition of the first layer consists essentially of a high density polyethylene (HDPE) resin and a propylene-ethylene copolymer thermoplastic elastomer (TPE). In addition to the first layer of the first polyolefin composition and the sealant layer, the laminate also includes a substrate film and an adhesive layer comprising polyurethane in adhering contact with the substrate film and the first layer, where when the adhesive layer is formed from a solvent-free adhesive the adhesive layer has an elastic modulus of greater than 25 MPa, and when the adhesive layer is formed from a solvent-based adhesive the adhesive layer has an elastic modulus of greater than 0.30 MPa, the elastic modulus being measured for the polyurethane in accordance with ASTM D412.

64. 发明公开

US20230145404A1 H2O2 WITHOUT DIBC FOR PO PRODUCTION 审中-公开
公开(公告)号：US20230145404A1
公开(公告)日：2023-05-11
申请号：US17911673
申请日：2021-03-22
申请人： BASF SE , Dow Global Technologies LLC
发明人： Dominic RIEDEL , Joaquim Henrique TELES , Jaroslaw Michael MORMUL , Andrei-Nicolae PARVULESCU , Meinolf WEIDENBACH , Franciscus Johannes Robertus VAN NEER
IPC分类号： C07D301/12
CPC分类号： C07D301/12
摘要： The invention relates in a first aspect to a process for the preparation of propylene oxide, comprising: (i) providing a reaction mixture comprising propylene, water, organic solvent, and hydrogen peroxide; (ii) contacting the reaction mixture provided in (i) in an epoxidation zone with an epoxidation catalyst comprising a zeolitic material having a framework structure comprising Si, O, and Ti, and subjecting the reaction mixture to epoxidation reaction conditions in the epoxidation zone, obtaining, in the epoxidation zone, a mixture comprising propylene oxide, water, and organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, and organic solvent; wherein the reaction mixture provided in (i) and subjected to (ii) contains in an amount of at most 500 mg per kg hydrogen peroxide comprised in said reaction mixture at least one aliphatic oxygen containing compound having 8 to 10 carbon atoms. The invention further relates in a second aspect to a reaction mixture for preparing propylene oxide, comprising propylene, water, organic solvent, and hydrogen peroxide, wherein the reaction mixture comprises at least one aliphatic oxygen containing compound having 8 to 10 carbon atoms in an amount of at most 500 mg per kg hydrogen peroxide comprised in the reaction mixture. In a third aspect, the invention relates to a system comprising an epoxidation catalyst comprising a zeolitic material having a framework structure comprising Si, O, and Ti, and further comprising the reaction mixture comprising propylene, water, and organic solvent according to the second aspect. In a fourth aspect, the invention relates to the use of an aqueous hydrogen peroxide solution as epoxidation agent for preparing propylene oxide in the presence of an organic solvent and an epoxidation catalyst comprising a zeolitic material having a framework structure comprising Si, O, and Ti, wherein the aqueous hydrogen peroxide solution comprises at least one aliphatic oxygen containing compound having 8 to 10 carbon atoms in an amount of at most 500 mg per kg hydrogen peroxide comprised in the aqueous hydrogen peroxide solution.

65. 发明公开

US20230141792A1 PROCESS FOR REDUCING ALDEHYDE EMISSIONS IN POLYETHER POLYOLS AND POLYURETHANE FOAMS 审中-公开
公开(公告)号：US20230141792A1
公开(公告)日：2023-05-11
申请号：US17907910
申请日：2020-03-12
申请人： Dow Global Technologies LLC
发明人： Wenbin BAO , Shaoguang Feng , Haiying Li , Ping Zhang , Zhengming Tang , Jian Zou , Jie Ji
IPC分类号： C08L75/08 , C08G18/10 , C08G18/48 , C08G18/32 , C08G18/66
CPC分类号： C08L75/08 , C08G18/10 , C08G18/4883 , C08G18/4829 , C08G18/4816 , C08G18/3206 , C08G18/6677
摘要： Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one iso-cyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, a certain β-diketone compound and a water-soluble amino-functional polymer. Foams so produced emit low levels of aldehydes.

66. 发明公开

US20230141110A1 PREPARATION OF POLYURETHANE AND POLYISOCYANURATE FOAMS USING LIQUID SILOXANE NUCLEATING ADDITIVE 审中-公开
公开(公告)号：US20230141110A1
公开(公告)日：2023-05-11
申请号：US17907594
申请日：2021-06-07
申请人： Dow Global Technologies LLC
发明人： Weijun Zhou , Thomas Mosciatti
IPC分类号： C08G18/08 , C08G18/10 , C08G18/42 , C08G18/09 , C08J9/00 , C08J9/14 , C08K5/5419
CPC分类号： C08G18/14 , C08G18/10 , C08G18/4211 , C08G18/092 , C08J9/0042 , C08J9/146 , C08K5/5419 , C08G2101/00
摘要： A method for preparing polyisocyanurate and polyurethane foams by the use of a liquid siloxane nucleating additive, and a foam-forming composition for preparing foams with improved thermal insulation performance, comprising an isocyanate component, an isocyanate-reactive component, a blowing agent, and a liquid siloxane nucleating additive.

67. 发明授权

US11643569B2 Method for providing substrate coated with a cured damping coating and coated substrate so provided 有权
公开(公告)号：US11643569B2
公开(公告)日：2023-05-09
申请号：US17045863
申请日：2019-04-26
申请人： Dow Global Technologies LLC , Rohm and Haas Company
发明人： Ray E. Drumright , Zhenwen Fu , Justin Gimbal , Craig F. Gorin , Xin Jin
IPC分类号： C09D135/02 , C08K3/26
CPC分类号： C09D135/02 , C08K3/26 , C08K2003/265
摘要： A method for providing a substrate coated with a cured damping coating including: applying a curable liquid damping composition to a substrate, wherein said curable liquid damping composition includes an admixture of certain Michael acceptor(s), certain Michael donor(s), a base catalyst; a rheology modifier; and a solid filler; wherein the filler is a different material than the rheology modifier; wherein the curable damping composition has a PVC of from 20% to 70%; and drying/curing the applied curable damping composition at a temperature of from 0° C. to 250° C. is provided. Also provided is a substrate coated with the cured damping coating.

68. 发明申请

US20230136233A1 SUBSTITUTED SILANES AS CHAIN TRANSFER AGENTS FOR POLYOLEFIN PRODUCTION 有权
公开(公告)号：US20230136233A1
公开(公告)日：2023-05-04
申请号：US17907709
申请日：2021-03-29
申请人： Dow Global Technologies LLC
发明人： Arkady L. Krasovskiy , Ivan A. Konstantinov , Hayley A. Brown , Mehmet Demirors
IPC分类号： C08F293/00
摘要： Embodiments are directed to a method of making an olefin-based polymer by free-radical polymerization in a reactor system. The method includes initiating a free-radical polymerization of an olefin-based monomer, propagating growth of the olefin-based polymer during continued free-radical polymerization of the olefin-based monomer, and adding to the reactor system a chain transfer agent that terminates the growth of the olefin-based polymer. The chain transfer agent includes a silane. Examples of suitable silanes are: triethylsilane, diethylmethylsilane, tris(trimethylsilyl)silane, n-butylsilane, dimethylphenylsilane, phenylsilane, chlorodimethylsilane, diisopropylaminosilane, 1,2-bis(dimethylsilyl) benzene, 1,3-bis(dimethylsilyl) benzene, 1,4-bis(dimethylsilyl)benzene, 1,1, 3,3-tetramethyldisiloxane, trimethylsilane, (trimethylsilyl)dimethylsilane, and bis(trimethylsilyl)methylsilane.

69. 发明申请

US20230125570A1 FLAME-RETARDANT POLYMERIC COMPOSITIONS 有权
公开(公告)号：US20230125570A1
公开(公告)日：2023-04-27
申请号：US17918155
申请日：2021-07-01
申请人： Dow Global Technologies LLC
发明人： Chongsoo Lim , Andrew B. Shah , Bharat I. Chaudhary
IPC分类号： C08L23/08 , C08K3/22 , C08F112/08 , C08F112/14 , C08L23/06
摘要： A polymeric composition includes a silane functionalized polyolefin, a brominated flame retardant having a Temperature of 5% Mass Loss from 300° C. to 700° C. as measured according to Thermogravimetric Analysis, wherein the brominated flame retardant is polymeric and has a weight average molecular weight of from 1,000 g/mol to 30,000 g/mol as measured using Gel Permeation Chromatography, and antimony trioxide. The polymeric composition has an antimony (Sb) to bromine (Br) molar ratio (Sb:Br molar ratio) of 0.35 to 0.98.

70. 发明申请

US20230125442A1 LONG-CHAIN BRANCHED ETHYLENE-BASED POLYMERS 有权
公开(公告)号：US20230125442A1
公开(公告)日：2023-04-27
申请号：US17907467
申请日：2021-03-26
申请人： Dow Global Technologies LLC
发明人： Robert D.J. Froese , Keran Lu , Robert L. Sammler , Cornelis F.J. Den Doelder
IPC分类号： C08F210/18
摘要： Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymer are polymerized units derived from ethylene, diene, and optionally, one or more C3-C12 α-olefins. The ethylene-based polymer includes a melt viscosity ratio (V0.1/V100) at 190 C greater than 20. The V0.1 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 0.1 radians/second, and the V100 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 100 radians/second. Additionally, the ethylene-based polymer includes an average g greater than 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.

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