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1.发明公开公开(公告)号：US20240076258A1
公开(公告)日：2024-03-07
申请号：US18262651
申请日：2022-02-04
发明人： Yudai ITO , Masahiro SUDO , Takashi NANIKI
摘要： A method for producing isobutyl vinyl ether using isobutyl alcohol as a raw material alcohol, the method including reacting the isobutyl alcohol with acetylene to obtain a mixture containing unreacted isobutyl alcohol and isobutyl vinyl ether, reacting the unreacted isobutyl alcohol and the isobutyl vinyl ether in the mixture in a presence of an acid catalyst to be converted into acetaldehyde diisobutyl acetal, and removing the acetaldehyde diisobutyl acetal by distillation.
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公开(公告)号：US11919850B2
公开(公告)日：2024-03-05
申请号：US16971043
申请日：2019-02-20
发明人： Satoshi Kakuta , Hiromitsu Baba , Teruyo Ikeda , Ryo Fujisawa , Kazuhiko Haba
IPC分类号： C08F283/01 , C07C69/013 , C07C69/608 , C08F22/10 , C08F122/10 , C08F222/10 , C08F290/08 , C08L33/14 , G03F7/004 , C08F2/48
CPC分类号： C07C69/608 , C07C69/013 , C08F22/10 , C08F122/10 , C08F222/10 , C08F222/102 , C08F283/01 , C08F290/08 , C08L33/14 , G03F7/004 , C08F2/48 , C08F212/24 , C08F220/1806 , C08F222/102 , C08F222/14 , C08F220/1805 , C08F222/102
摘要： Provided is a compound that can be used for a resin for a resist having excellent sensitivity, resolution, and etching resistance, or the like, by a compound represented by the following formula (1):
(wherein R1 represents a hydrogen atom or a methyl group, R2 represents an aliphatic hydrocarbon group having 1 to 6 carbon atoms, m represents an integer of 0 to 5, and n represents an integer of 0 to 4).-
公开(公告)号：US11814351B2
公开(公告)日：2023-11-14
申请号：US16971025
申请日：2019-02-20
发明人： Satoshi Kakuta , Hiromitsu Baba , Teruyo Ikeda , Ryo Fujisawa , Kazuhiko Haba
IPC分类号： C07C69/602 , C08F22/26 , C08F12/24 , G03F7/027
CPC分类号： C07C69/602 , C08F12/24 , C08F22/26 , G03F7/027
摘要： Provided is a compound that can be used for a resin for a resist having excellent sensitivity, resolution, and etching resistance, or the like, by a compound represented by the following formula (1):
(wherein R1 represents a hydrogen atom or a methyl group, R2 represents an aliphatic hydrocarbon group having 1 to 6 carbon atoms, m represents an integer of 0 to 5, and n represents an integer of 0 to 4).-
公开(公告)号：US11773200B2
公开(公告)日：2023-10-03
申请号：US17041189
申请日：2019-03-27
发明人： Takahiro Kawate , Yoshikazu Iijima
IPC分类号： C08F8/04 , C08F240/00 , C08F232/08 , C08F4/44 , C08F4/80 , C08F232/06 , C08F212/08
CPC分类号： C08F240/00 , C08F4/44 , C08F4/80 , C08F8/04 , C08F232/08 , C08F212/08 , C08F232/06
摘要： Provided is a method for producing a hydrogenated petroleum resin having good compatibility with a base polymer and a good hue under a hydrogen pressure of 4 MPaG or less. A method for producing a hydrogenated petroleum resin, includes a hydrogenation step of hydrogenating a polymerization product of dicyclopentadiene and a vinyl aromatic compound in the presence of a catalyst, in which hydrogenation step is performed under conditions (A) to (C): (A) an amount of the catalyst used: 0.125 to 0.4 parts by mass relative to 100 parts by mass of a resin in the polymerization product, (V) a reaction pressure: 4 MPaG or less, and (C) a reaction temperature: 240° C. or higher.
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5.发明公开公开(公告)号：US20230220138A1
公开(公告)日：2023-07-13
申请号：US17756723
申请日：2020-12-11
IPC分类号： C08F232/08
CPC分类号： C08F232/08 , C08F2800/20
摘要： A method of manufacturing a copolymer resin of dicyclopentadiene and a vinyl aromatic compound, by which the resin can be continuously manufactured with reduced generation of high molecular weight products of the vinyl aromatic compound and insoluble substances from dicyclopentadiene, and at high yield. The manufacturing method includes continuously injecting polymerization raw materials into a preheated solvent in the reaction system, and concurrently ejecting a part of the reaction solution containing the solvent and the polymerization raw materials outside the reaction system, while raising the temperature of the polymerization raw materials. This enables rapid rise of the temperature of the polymerization raw materials by utilizing sensible heat, resulting in reduced generation of insoluble substances. In addition, providing a reaction step following the raw material injection step allows the polymerization reaction to proceed until a desired molecular weight is achieved, resulting in improved yield.
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公开(公告)号：US20220251267A1
公开(公告)日：2022-08-11
申请号：US17629439
申请日：2020-08-06
IPC分类号： C08F220/28 , G03F7/039 , G03F7/038 , C08F8/12
摘要： The present invention provides a polymer comprising a structural unit derived from p-hydroxystyrene and a structural unit having a structure in which a carboxylic acid is protected by an acetal group, wherein the structural unit generated by elimination of the acetal group or migration of the acetal group during the production process is extremely small; and a process for producing the same.
A solution containing a polymer comprising a structural unit derived from p-acetoxystyrene and a structural unit having a structure in which a carboxylic acid is protected by an acetal group is subjected to deprotection reaction at 50° C. or lower in the presence of a base in which a pKa of a conjugated acid is 12 or more.-
公开(公告)号：US10766973B2
公开(公告)日：2020-09-08
申请号：US15735748
申请日：2016-04-15
发明人： Tomohiro Masukawa , Ryo Fujisawa , Kazuhiko Haba , Satoshi Kakuta
摘要： Provided is a method for producing a polymer for an electronic material having a low content of metal ion impurities and a polymer for an electronic material obtained by such method.The method for producing a polymer for an electronic material according to the present invention comprises a polymerization step of obtaining a polymer by polymerizing a monomer(s) and a purification step of adding a strong acid having 0 or less pKa to the polymer solution and subsequently performing an ion exchange treatment to reduce the concentration of the metal ion impurities.
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公开(公告)号：US10370478B2
公开(公告)日：2019-08-06
申请号：US15572384
申请日：2016-05-02
发明人： Shinji Sugihara
IPC分类号： C08F16/26 , C08F293/00 , C08F18/08 , C08F4/40 , C08F216/14 , C08F218/08
摘要： To provide a method for producing a polymer that is capable of providing an alkenyl ether polymer having a molecular weight, a molecular weight distribution, and a composition that are controlled, with a vinyl ether having a hydroxyl group, and a block copolymer thereof. To provide a polymer obtained by the method as a macro chain transfer agent capable of performing reversible addition fragmentation chain transfer polymerization. Livingness can be imparted to radical polymerization of a hydroxyl group-containing vinyl ether by performing the radical polymerization in the presence of a particular RAFT agent and a radical polymerization initiator, and a block copolymer with another radically polymerizable vinyl monomer can be obtained by using the resulting living polymer as a macro chain transfer agent capable of performing reversible addition fragmentation chain transfer polymerization.
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公开(公告)号：US09994650B2
公开(公告)日：2018-06-12
申请号：US15127813
申请日：2015-03-25
IPC分类号： C08F8/04 , C08F232/06 , C08F32/04 , C07C2/42 , C08F212/08 , C07C2/50
CPC分类号： C08F8/04 , C07C2/42 , C07C2/50 , C07C2602/42 , C08F32/04 , C08F212/08 , C08F232/06 , C07C13/42
摘要： A method for producing a hydrogenated petroleum resin by reacting dicyclopentadiene with a vinyl aromatic compound, subjecting the reaction product obtained by this reaction to thermal polymerization, and then hydrogenating the resulting product, including the following steps (A) to (C): (A) a preliminary reaction step of reacting a vinyl aromatic compound represented by the following Formula (1) (in the formula, R1 is a hydrogen atom or the like) with dicyclopentadiene under the condition that selectivity for a phenylnorbornene derivative, which is a reaction product and is represented by the following Formula (2) {in the formula, R1 has the same meaning as in the above Formula (1)}, is 90% or more to obtain a reaction liquid containing the phenylnorbornene derivative: (B) a polymerization step of heating the reaction liquid, which contains the phenylnorbornene derivative and is obtained in the preliminary reaction step (A), to a temperature of 240 to 300° C. to polymerize the reaction liquid, thereby obtaining a polymerization reaction product; and (C) a hydrogenation step of hydrogenating the polymerization reaction product, which is obtained in the polymerization step (B), in the presence of a catalyst to obtain a hydrogenated petroleum resin.
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公开(公告)号：US20170198073A1
公开(公告)日：2017-07-13
申请号：US15315588
申请日：2015-06-01
发明人： Takashi TAKAHASHI , Keisuke MATSUSHITA , Masaki SUGIYAMA , Norihiro YOSHIDA , Eiichi IKAWA , Takahito MITA , Masahiro ENDO
IPC分类号： C08F130/02 , C08F8/12
CPC分类号： C08F130/02 , C08F2/06 , C08F2/38 , C08F8/12
摘要： A method for producing poly(dimethyl vinylphosphonate) from a monomer component mainly containing dimethyl vinylphosphonate by anionic polymerization in the presence of an anionic polymerization initiator, the method being characterized in that an aliphatic ether is used as a polymerization solvent, and a method for producing poly(vinylphosphonic acid) characterized in that the poly(dimethyl vinylphosphonate) obtained by the former method is hydrolyzed in the presence of an acid are provided. The methods make it possible to easily produce a poly(dimethyl vinylphosphonate) which has a high molecular weight and in which the molecular weight is controlled, and make it possible to produce a poly(vinylphosphonic acid) which has a high molecular weight and in which the molecular weight is controlled corresponding to the poly(dimethyl vinylphosphonate).
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