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1.发明公开
公开(公告)号：EP4424766A1
公开(公告)日：2024-09-04
申请号：EP22886129.0
申请日：2022-10-28
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
发明人： ZHANG, Yaru , SONG, Wenbo , LIU, Zhenjie , CHU, Liqiu , ZHANG, Xiaomeng , LI, Juan , LI, Jie , KANG, Peng
摘要： A polyethylene composition and the use thereof, and a polyolefin microporous breathable film prepared therefrom. The polyethylene composition comprises a polyethylene matrix resin and a pore-forming agent, wherein the content of the pore-forming agent is 30-110 parts by weight on the basis of 100 parts by weight of the polyethylene matrix resin, the pore-foaming agent comprises maleic anhydride copolymer microspheres, a copolymer in the microsphere comprises a structural unit A from maleic anhydride, a structural unit B from a vinyl-containing comonomer M and an optional cross-linking structure unit from a cross-linking agent, and the average particle size of the maleic anhydride copolymer microspheres is 500-2000 nm. The polyethylene composition can be used for preparing a breathable film without using a coupling agent, a dispersing agent and/or a surfactant, and achieves uniform air permeability and a high water vapor transmission rate. The film can be used for breathable composite products such as sanitary products, medical products, and food packaging or building products.
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2.发明公开
公开(公告)号：EP4382568A1
公开(公告)日：2024-06-12
申请号：EP22852227.2
申请日：2022-08-03
申请人： China Petroleum & Chemical Corporation , Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation , Tsinghua University
发明人： SHAO, Qing , HE, Jinliang , YUAN, Hao , LI, Qi , ZHANG, Yaru , HU, Jun , WANG, Mingti , HUANG, Shangshi , LI, Juan , HU, Shixun , ZHANG, Qi , GAO, Dali , SHI, Hongwei
IPC分类号： C08L23/12 , C08F255/02 , C08F255/04 , C08F222/06 , H01B3/30
CPC分类号： C08F255/04 , C08L23/12 , C08F255/02 , C08F222/06 , H01B3/30
摘要： The invention belongs to the field of insulating materials, in particular cable insulating materials, and particularly relates to a modified flexible polypropylene insulating material, and preparation method and use thereof. The modified flexible polypropylene insulating material comprises a propylene-based continuous phase, and a rubber phase and a grafted phase derived from an unsaturated bond-containing polymerizable monomer dispersed in the propylene-based continuous phase; wherein, the modified flexible polypropylene insulating material has a content of xylene solubles of 10-55 wt%, preferably 15-45 wt%, more preferably 18-40 wt%, and still more preferably 20-40 wt%, based on the total weight of the modified flexible polypropylene insulating material; the content of structural units derived from the unsaturated bond-containing polymerizable monomer and in a grafted state in the modified flexible polypropylene insulating material is 0.3-6 wt%, and preferably 0.7-5 wt%; the flexural modulus of the modified flexible polypropylene insulating material is 200-1000 MPa, preferably 200-950 MPa, more preferably 200-700 MPa, and still more preferably 250-600 MPa; preferably, the ratio of the mass of the structural units derived from the unsaturated bond-containing polymerizable monomer in xylene insolubles to the mass of the structural units derived from the unsaturated bond-containing polymerizable monomer in the modified flexible polypropylene insulating material is more than 0.1, preferably 0.3-0.9. The modified flexible polypropylene insulating material of the invention can give consideration to both mechanical property and electrical property at a higher working temperature, and is suitable for working conditions of high temperature and high operating field strength.
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公开(公告)号：EP4332135A1
公开(公告)日：2024-03-06
申请号：EP22794409.7
申请日：2022-03-21
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
发明人： GAO, Rong , GOU, Qingqiang , LI, Juan , ZHANG, Xiaofan , LAI, Jingjing , ZHANG, Longgui , ZHOU, Junling , LIN, Jie , LI, Xinyang , SONG, Jianhui , ZHANG, Junhui , AN, Jingyan , ZHAO, Hui , LI, Yan , MA, Dong , GU, Yuanning
IPC分类号： C08F220/68 , C08F4/70
摘要： Disclosed in the present invention are a method for preparing polymer, and an obtained polymer. The method comprises: enabling olefin and unsaturated carboxylate be subjected to a polymerization reaction in the presence of a catalyst to generate an olefin-unsaturated carboxylate polymer, the catalyst comprising a primary catalyst and optionally a cocatalyst, and the primary catalyst comprising at least one complex represented by formula I, formula I', or formula I". By selecting a reacted unsaturated carboxylate monomer, catalysts, and a suitable polymerization process, a spherical and/or sphere-like polymer having good shape is directly prepared without subsequent processing steps such as granulation, and the obtained polymer product is not prone to fouling in a reactor and is convenient for transportation.
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4.发明公开
公开(公告)号：EP4144776A1
公开(公告)日：2023-03-08
申请号：EP20933920.9
申请日：2020-11-09
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION , Tsinghua University
发明人： SONG, Wenbo , HE, Jinliang , YUAN, Hao , SHAO, Qing , LI, Qi , SHI, Hongwei , ZHANG, Qi , LI, Juan , WANG, Yutao , HU, Jun , ZOU, Fasheng , ZHOU, Yao
IPC分类号： C08F255/02 , C08F255/04 , C08F222/06 , H01B3/30 , H01B7/02
摘要： The invention belongs to the field of polymers, and relates to an anhydride group-containing polypropylene graft for an insulating material and preparation method thereof. The anhydride group-containing polypropylene graft comprises structural units derived from a polypropylene copolymer, structural units derived from an anhydride monomer and structural units derived from an alkenyl-containing polymerizable monomer; the content of the structural units derived from the anhydride monomer and the alkenyl-containing polymerizable monomer and in a grafted state in the anhydride group-containing polypropylene graft is 0.1 to 5 wt%, based on the weight of the anhydride group-containing polypropylene graft; and, the molar ratio of the structural units derived from the anhydride monomer to the structural units derived from the alkenyl-containing polymerizable monomer in the anhydride group-containing polypropylene graft is 1: 1-20; the polypropylene copolymer has at least one of the following characteristics: the comonomer content is 0.5 to 40 mol%; the content of xylene solubles is 2 to 80 wt%; the comonomer content in the xylene solubles is 10 to 70 wt%; the intrinsic viscosity ratio of the xylene solubles to the polypropylene copolymer is 0.3 to 5. The anhydride group-containing polypropylene graft of the invention can give consideration to both mechanical property and electrical property at a higher working temperature.
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公开(公告)号：EP4144795A1
公开(公告)日：2023-03-08
申请号：EP20933507.4
申请日：2020-11-09
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION , Tsinghua University
发明人： YUAN, Hao , SONG, Wenbo , HE, Jinliang , SHAO, Qing , LI, Qi , ZHANG, Qi , SHI, Hongwei , LI, Juan , WANG, Yutao , HU, Jun , ZHANG, Xiaomeng , ZHOU, Yao
摘要： The invention belongs to the field of polymers, and relates to a grafting-modified polypropylene material for an insulating material and preparation method thereof. The grafting-modified polypropylene material comprises structural units derived from a polypropylene copolymer and structural units derived from an alkenyl-containing polymerizable monomer; the content of the structural units derived from the alkenyl-containing polymerizable monomer and in a grafted state in the grafting-modified polypropylene material is 0.1 to 14 wt%; the polypropylene copolymer has at least one of the following characteristics: the comonomer content is 0.5 to 40 mol%; the content of xylene solubles is 2 to 80 wt%; the comonomer content in the xylene solubles is 10 to 70 wt%; the intrinsic viscosity ratio of the xylene solubles to the polypropylene copolymer is 0.3 to 5. The grafting-modified polypropylene material of the invention can give consideration to both mechanical property and electrical property at a higher working temperature.
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公开(公告)号：EP4393962A1
公开(公告)日：2024-07-03
申请号：EP22874960.2
申请日：2022-09-28
申请人： China Petroleum & Chemical Corporation , Sinopec (Beijing) Research Institute of Chemical Industry Co., Ltd.
发明人： WANG, Wei , WU, Changjiang , GUO, Tianhao , QU, Shuzhang , LI, Juan , ZHANG, Taoyi , HOU, Liping , SHENG, Jianfang , LIU, Na , ZHENG, Gang , ZHANG, Longgui
摘要： The present invention relates to the field of olefin polymerization, and in particular relates to a catalyst composition and an application thereof. The catalyst composition of the present invention comprises the following components: a) a metallocene compound, b) a co-catalyst component, and c) a phenol, the co-catalyst component being a combination of an organoaluminum compound and an alkyl aluminoxane, or a combination of an organoaluminum compound and an organoboron compound. When the catalyst composition of the present invention is used for the copolymerization of ethylene and a cycloolefin or an alkenol, not only can the molecular weight of the polymer be increased, but the content of cycloolefin or alkenol structural unit in the copolymer can also be increased.
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7.发明公开
公开(公告)号：EP4462449A1
公开(公告)日：2024-11-13
申请号：EP22918300.9
申请日：2022-11-22
申请人： CHINA PETROLEUM & CHEMICAL CORPORATION , Sinopec (Beijing) Research Institute of Chemical Industry Co., Ltd. , Tsinghua University
发明人： ZHANG, Yaru , LI, Qi , ZHANG, Qi , YUAN, Hao , HE, Jinliang , SHAO, Qing , LI, Junluo , QUAN, Hui , WANG, Mingti , HU, Jun , LI, Juan , GAO, Dali , ZHANG, Longgui , HU, Shixun , LU, Hongchao , XIA, Lidong
IPC分类号： H01B3/30 , B32B27/32 , B29C55/12 , C08J5/18 , C08F222/06 , C08F255/02 , C08F212/08 , C08F230/08
摘要： The invention belongs to the field of polymers, and relates to biaxially oriented polypropylene dielectric film, a modified polypropylene material and use thereof. The preparation raw materials of the biaxially oriented polypropylene dielectric film comprise a modified polypropylene grafted with an alkenyl-containing functional monomer. The modified polypropylene grafted with an alkenyl-containing functional monomer comprises a structural unit derived from polypropylene as a matrix phase and a structural unit derived from an alkenyl-containing functional monomer as a dispersion phase. The ash content of the modified polypropylene grafted with an alkenyl-containing functional monomer is less than 50 ppm. In the modified polypropylene grafted with an alkenyl-containing functional monomer, the mass ratio of the structure unit which is derived from an alkenyl-containing functional monomer and in a grafted state to the structure unit which is derived from an alkenyl-containing functional monomer and in a self-polymerization state is greater than or equal to 1.0. D50 of the dispersion phase is less than 450 nm. The biaxially oriented polypropylene dielectric film of the present invention can keep good dielectric performance and energy storage performance at a relatively high working temperature, and is suitable for high-temperature and high-operation field intensity working conditions.
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8.发明公开
公开(公告)号：EP4400522A1
公开(公告)日：2024-07-17
申请号：EP22874965.1
申请日：2022-09-28
申请人： China Petroleum & Chemical Corporation , Sinopec (Beijing) Research Institute of Chemical Industry Co., Ltd.
发明人： WU, Changjiang , LI, Juan , HOU, Liping , WANG, Wei , ZHANG, Taoyi , LUO, Chunxia , ZHANG, Longgui , ZHENG, Junpeng , ZHENG, Gang , DU, Wenjie , SHENG, Jianfang , GAO, Feifei
IPC分类号： C08F210/16 , C08F4/6592 , C08F4/649 , C08F4/642
CPC分类号： C08F4/6592 , C08F210/16 , C08F4/642 , C08L23/08 , C08F4/649
摘要： The present invention relates to the field of ethylene copolymers. Disclosed are an ethylene-copolymerized olefin copolymer having a high comonomer dispersion index, a preparation method therefor, an application thereof, and a composition comprising an ethylene-α-olefin copolymer. The ethylene-α-olefin copolymer contains 70-95mol% a structural unit derived from ethylene and 5-30mol% a structural unit derived from α-olefin. The α-olefin is an olefin having 5-10 carbon atoms, and a dispersion index RMD of the α-olefin structural unit in the molecular chain is greater than 102%. The ethylene-α-olefin copolymer of the present invention has a high comonomer dispersion index.
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