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1. 发明专利

CA3102426A1 ACTIVATOR-NUCLEATOR FORMULATIONS 未知
公开(公告)号：CA3102426A1
公开(公告)日：2019-12-19
申请号：CA3102426
申请日：2019-06-07
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BORSE NITIN , LIU ZHENSHUO , MUNRO IAN M , CHANDAK SWAPNIL B
IPC分类号： C08F2/44
摘要： An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Natta procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Natta catalyst system to give a semicrystalline polyethylene polymer. The semicrystalline polyethylene polymer made by the method of polymerizing.

2. 发明专利

CA3094182A1 SPRAY-DRIED ZIRCONOCENE CATALYST SYSTEM 未知
公开(公告)号：CA3094182A1
公开(公告)日：2019-10-03
申请号：CA3094182
申请日：2019-03-22
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： MARIOTT WESLEY R , KUHLMAN ROGER L , CAO PHUONG A , LESTER C DALE , HE CHUAN , CHANDAK SWAPNIL B , JAIN PRADEEP , SZUL JOHN F
IPC分类号： C08F210/16 , B01J37/00 , C08F4/659
摘要： A spray-dried zirconocene catalyst system comprising a zirconocene catalyst and a hydrophobic fumed silica, which supports the zirconocene catalyst. A spray-drying method of making same. Polyolefins; methods of making and using same; and articles containing same.

3. 发明专利

SG11202011823SA ACTIVATOR-NUCLEATOR FORMULATIONS 未知
公开(公告)号：SG11202011823SA
公开(公告)日：2020-12-30
申请号：SG11202011823S
申请日：2019-06-07
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： BORSE NITIN , LIU ZHENSHUO , MUNRO IAN M , CHANDAK SWAPNIL B
IPC分类号： C08F2/44
摘要： An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Naha procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Naha catalyst system to give a semicrystalline polyethylene polymer. The semicrystalline polyethylene polymer made by the method of polymerizing.

4. 发明专利

SG11202008315TA SPRAY-DRIED ZIRCONOCENE CATALYST SYSTEM 未知
公开(公告)号：SG11202008315TA
公开(公告)日：2020-10-29
申请号：SG11202008315T
申请日：2019-03-22
申请人： DOW GLOBAL TECHNOLOGIES LLC
发明人： MARIOTT WESLEY R , KUHLMAN ROGER L , CAO PHUONG A , LESTER C DALE , HE CHUAN , CHANDAK SWAPNIL B , JAIN PRADEEP , SZUL JOHN F
IPC分类号： C08F210/16 , B01J37/00 , C08F4/659
摘要： A spray-dried zirconocene catalyst system comprising a zirconocene catalyst and a hydrophobic fumed silica, which supports the zirconocene catalyst. A spray-drying method of making same. Polyolefins; methods of making and using same; and articles containing same.

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