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公开(公告)号：US11015007B2
公开(公告)日：2021-05-25
申请号：US16082307
申请日：2017-02-02
申请人： SHOWA DENKO K.K.
发明人： Mina Onishi , Tomokazu Sugawara
IPC分类号： C08F222/10 , C08F220/10 , C08F2/40 , C08F2/46
摘要： There is provided an active energy ray-curable composition having excellent storage stability. The active energy ray-curable composition includes: active energy ray-curable compound (A) having an unsaturated ethylenic double bond; thiol compound (B) having two or more mercapto groups in one molecule; reaction inhibitor (C) configured to inhibit a reaction between the unsaturated ethylenic double bond and the mercapto groups; radical polymerization inhibitor (D); and water (E), wherein the content of water (E) is 0.05 ppm by mass or more and less than 1% by mass. When the total content of active energy ray-curable compound (A) and thiol compound (B) is 100 parts by mass, the content of reaction inhibitor (C) is 0.005 parts by mass or more and 10 parts by mass or less, and the content of radical polymerization inhibitor (D) is 0.005 parts by mass or more and 5 parts by mass or less.
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公开(公告)号：US11040931B2
公开(公告)日：2021-06-22
申请号：US16958272
申请日：2018-12-11
申请人： SHOWA DENKO K.K.
IPC分类号： C07C17/361 , C07C17/367 , C07C19/08 , C07C17/20
摘要： Fluorine gas is introduced to a raw material liquid containing a reaction inducer and a fluorinated hydrocarbon represented by CpHqClrFs (in the formula, p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and having no carbon-carbon unsaturated bond to give tetrafluoromethane. The reaction inducer is a halogen-containing carbon compound liquid at room temperature and pressure and is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas. The reaction inducer is contained at a content of more than 0% by mass and not more than 10% by mass when the total content of the fluorinated hydrocarbon and the reaction inducer contained in the raw material liquid is 100% by mass.
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公开(公告)号：US11220471B2
公开(公告)日：2022-01-11
申请号：US16962943
申请日：2018-12-25
申请人： SHOWA DENKO K.K.
IPC分类号： C07C17/367 , C07C17/20 , C07C17/361 , C07C19/08
摘要： Provided is a method for producing tetrafluoromethane, and the method is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid (1) containing a reaction inducer and a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (in the chemical formula, p is an integer of 3 or more and 18 or less, q is an integer of 0 or more and 3 or less, r is an integer of 0 or more and 9 or less, and s is an integer of 5 or more and 30 or less) and having no carbon-carbon unsaturated bond, fluorine gas is introduced to give tetrafluoromethane. The reaction inducer is a hydrocarbon polymer solid at normal temperature and pressure and is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas.
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公开(公告)号：US11034636B2
公开(公告)日：2021-06-15
申请号：US16962549
申请日：2018-12-25
申请人： SHOWA DENKO K.K.
IPC分类号： C07C17/361 , C07C17/367 , C07C19/08
摘要： A method for producing tetrafluoromethane as follows is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid containing a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (wherein p is an integer of 3 to 18, q is an integer of 0 to 3, r is an integer of 0 to 9, and s is an integer of 5 to 30) and having no carbon-carbon unsaturated bond, fluorine gas is introduced, and concurrently a reaction inducer is introduced in a gas state, giving tetrafluoromethane. The reaction inducer is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas and is at least one reaction inducer selected from a hydrocarbon gaseous at normal temperature and pressure and hydrogen gas.
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