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1. 发明公开

EP3733740A1 MANUFACTURING METHOD FOR LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE 审中-实审转让
公开(公告)号：EP3733740A1
公开(公告)日：2020-11-04
申请号：EP19752024.0
申请日：2019-02-05
申请人： DAIKIN INDUSTRIES, LTD.
发明人： TSUJI, Masayuki , TANAKA, Yuuji , YUKAWA, Hirokazu
IPC分类号： C08J3/26 , C08F8/50
摘要： Provided is a method for producing low molecular weight polytetrafluoroethylene less likely to generate C6-C14 perfluorocarboxylic acids and salts thereof. The method for producing low molecular weight polytetrafluoroethylene includes: (1) feeding into an airtight container in the absence of oxygen: high molecular weight polytetrafluoroethylene: and a halogenated polymer having a halogen atom other than a fluorine atom; and (2) irradiating the high molecular weight polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a melt viscosity at 380°C of 1.0 × 10 2 to 7.0 × 10 5 Pa·s.

2. 发明授权

EP3305945B1 METHOD FOR PRODUCING EVAPORATOR FOR REFRIGERATION DEVICE 有权
公开(公告)号：EP3305945B1
公开(公告)日：2019-04-24
申请号：EP16800051.1
申请日：2016-05-25
申请人： Daikin Industries, Ltd.
发明人： AOKI, Hironori , DOI, Takashi , OKADA, Kunihiro , KATAYAMA, Hideo , TANAKA, Yuuji
IPC分类号： C23F11/14 , C07D249/18 , B21D53/08 , F25B39/02 , F28F19/02

3. 发明公开

EP3388472A1 METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE, AND POWDER 有权
公开(公告)号：EP3388472A1
公开(公告)日：2018-10-17
申请号：EP17837118.3
申请日：2017-08-04
申请人： Daikin Industries, Ltd.
发明人： YOSHIDA, Ken , YOSHIDA, Hirotoshi , HAGI, Keisuke , TSUJI, Masayuki , KATO, Taketo , TANAKA, Yuuji , YAMANAKA, Taku , KAWAHARA, Kazuya , SUKEGAWA, Masamichi , HOSOKAWA, Kazutaka
IPC分类号： C08J3/28 , C08F8/50
摘要： The invention provides a method for producing low molecular weight polytetrafluoroethylene less likely to generate C8-C14 perfluorocarboxylic acids and salts thereof. The method for producing low molecular weight polytetrafluoroethylene includes: (1) feeding into an airtight container: polytetrafluoroethylene; at least one additive selected from the group consisting of hydrocarbons, chlorinated hydrocarbons, alcohols, and carboxylic acids other than C8-C14 perfluorocarboxylic acids; and at least one selected from the group consisting of inert gases other than the above additive and oxygen adsorbents; and (2) irradiating the polytetrafluoroethylene to provide low molecular weight polytetrafluoroethylene having a complex viscosity of 1 × 10 2 to 7 × 10 5 Pa·s at 380°C.

4. 发明公开

EP3763747A1 METHOD FOR PRODUCING FLUOROPOLYMER 审中-实审转让
公开(公告)号：EP3763747A1
公开(公告)日：2021-01-13
申请号：EP19764428.9
申请日：2019-03-07
申请人： DAIKIN INDUSTRIES, LTD.
发明人： YOSHIDA, Hirotoshi , KATO, Taketo , ICHIKAWA, Kenji , FUJIMOTO, Yohei , NANBA, Yoshinori , ITO, Kengo , HIGASHI, Masahiro , YONEDA, Satoru , YAMAUCHI, Akiyoshi , ISHIHARA, Sumi , HOSOKAWA, Moe , NAKANO, Marina , TANAKA, Yuuji , KISHIKAWA, Yosuke , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , YAMANAKA, Taku , SATO, Hiroyuki
IPC分类号： C08F2/26 , C08F4/40
摘要： An object of the present invention is to provide a method for producing a fluoropolymer capable of reducing the content of impurities. The present invention provides a method for producing a fluoropolymer, comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer, wherein the surfactant is a carboxylic acid type hydrocarbon-containing surfactant.

5. 发明公开

EP3604350A1 PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT 审中-实审转让
公开(公告)号：EP3604350A1
公开(公告)日：2020-02-05
申请号：EP18776956.7
申请日：2018-03-30
申请人： Daikin Industries, Ltd.
发明人： KATO, Taketo , YONEDA, Satoru , FUJISAWA, Manabu , ASANO, Kazuya , KITAHARA, Takahiro , HIGASHI, Masahiro , YAMAUCHI, Akiyoshi , ISHIHARA, Sumi , KISHIKAWA, Yosuke , NITTA, Shinnosuke , NAKANO, Marina , YOSHIDA, Hirotoshi , NANBA, Yoshinori , ITO, Kengo , OKUI, Chiaki , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , YAMANAKA, Taku , SATO, Hiroyuki , TANAKA, Yuuji , ICHIKAWA, Kenji , FUJIMOTO, Yohei
IPC分类号： C08F2/26 , C08F14/18 , C07C305/04
摘要： The invention aims to provide a novel method for producing a fluoropolymer. The method for producing a fluoropolymer of the invention includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R 1a -CO-R 2a -CO-R 3a -OSO 3 X a and a surfactant represented by R 1b -CO-(CR 2b 2 ) n -(OR 3b ) p -(CR 4b 2 ) q -L-OSO 3 X b .

6. 发明公开

EP3604349A1 PRODUCTION METHOD FOR FLUOROPOLYMER, SURFACTANT FOR POLYMERIZATION, AND USE OF SURFACTANT 有权转让
公开(公告)号：EP3604349A1
公开(公告)日：2020-02-05
申请号：EP18776418.8
申请日：2018-03-30
申请人： Daikin Industries, Ltd.
发明人： KATO, Taketo , YONEDA, Satoru , FUJISAWA, Manabu , ASANO, Kazuya , KITAHARA, Takahiro , HIGASHI, Masahiro , YAMAUCHI, Akiyoshi , ISHIHARA, Sumi , KISHIKAWA, Yosuke , NITTA, Shinnosuke , NAKANO, Marina , YOSHIDA, Hirotoshi , NANBA, Yoshinori , ITO, Kengo , OKUI, Chiaki , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , YAMANAKA, Taku , TANAKA, Yuuji , ICHIKAWA, Kenji , FUJIMOTO, Yohei , SATO, Hiroyuki
IPC分类号： C08F2/26 , C08F14/18
摘要： The invention aims to provide a novel method for producing a fluoropolymer. The method for producing a fluoropolymer of the invention includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R 1a -CO-R 2a -CO-R 3a -A a and a surfactant represented by R 1b -CO-(CR 2b 2 ) n -(OR 3b ) p -(CR 4b 2 ) q -L-A b .

7. 发明公开

EP3305945A1 METHOD FOR PRODUCING EVAPORATOR FOR REFRIGERATION DEVICE 有权
标题翻译：生产制冷设备蒸发器的方法
公开(公告)号：EP3305945A1
公开(公告)日：2018-04-11
申请号：EP16800051.1
申请日：2016-05-25
申请人： Daikin Industries, Ltd.
发明人： AOKI, Hironori , DOI, Takashi , OKADA, Kunihiro , KATAYAMA, Hideo , TANAKA, Yuuji
IPC分类号： C23F11/14 , B21D53/08 , F25B39/02
CPC分类号： F25B47/003 , B21D53/08 , B21D53/085 , C07D249/18 , C23F11/149 , F25B39/02 , F28D1/0477 , F28F19/02
摘要： A method of manufacturing an evaporator for a refrigeration apparatus capable of reducing corrosion is provided. The method of manufacturing an evaporator (23, 31) of an air conditioner (100) includes a first step of applying a coating agent containing: a benzotriazole-based compound having a structure represented by the following formula (I)

(wherein R1 to R4 each independently represent hydrogen or a methyl group, and R5 represents an aliphatic hydrocarbon group having 1 to 18 carbon atoms or (CH 2 ) n -N-R6-R7, n being an integer of 1 to 3, R6 and R7 being each independently an aliphatic hydrocarbon group having 1 to 18 carbon atoms); and a metal working oil to an outer surface of a heat transfer pipe (50) to form a rust preventive film (52), a second step of inserting the heat transfer pipe (50) having the rust preventive film formed thereon into a hole (62) of a heat transfer fin (60), and a third step of expanding the heat transfer pipe (50) inserted the heat transfer fin.
摘要翻译：提供了一种制造能够减少腐蚀的制冷装置的蒸发器的方法。制造空调机（100）的蒸发器（23,31）的方法包括：第一步骤，涂布包含具有由下式（I）表示的结构的苯并三唑类化合物（其中R 1至R 4 各自独立地表示氢或甲基，并且R 5表示具有1至18个碳原子的脂族烃基或（CH 2）n -NR 6 -R 7，n为1至3的整数，R 6和R 7各自独立地为脂族烃具有1至18个碳原子的基团）; （50）的外表面上形成金属加工油而形成防锈膜（52）的第二工序;将形成有防锈膜的传热管（50）插入孔（（60）的第二步骤，以及扩展插入所述传热翅片的所述传热管（50）的第三步骤。

8. 发明公开

EP3919902A1 METHOD FOR INSPECTING REFRIGERANT PIPE AND REFRIGERANT PIPE 审中-实审转让
公开(公告)号：EP3919902A1
公开(公告)日：2021-12-08
申请号：EP20749778.5
申请日：2020-01-27
申请人： DAIKIN INDUSTRIES, LTD.
发明人： ARAKI, Shouhei , OKADA, Kunihiro , OHYA, Hideo , IMAZU, Keisuke , HAMA, Sayumi , TANAKA, Yuuji
IPC分类号： G01N33/2045 , C23F11/00 , G01N17/00 , G01N21/77
摘要： Provided are a method for inspecting a refrigerant pipe, the method being able to quickly determine durability, and a refrigerant pipe confirmed to be highly durable. The method is a method for inspecting a refrigerant pipe containing copper or a copper alloy. In the method, the refrigerant pipe is inspected based on a color change of the refrigerant pipe due to exposure of the refrigerant pipe to an aqueous alkaline solution.

9. 发明公开

EP3779347A1 REFRIGERANT PIPE, HEAT EXCHANGER, AND METHOD FOR MANUFACTURING REFIGERANT PIPE 有权
公开(公告)号：EP3779347A1
公开(公告)日：2021-02-17
申请号：EP19774901.3
申请日：2019-03-28
申请人： DAIKIN INDUSTRIES, LTD.
发明人： KANETAKE, Mirei , TANAKA, Yuuji , OKADA, Kunihiro , OHYA, Hideo , KATAYAMA, Hideo , IMAZU, Keisuke , ARAKI, Shouhei
IPC分类号： F28F19/02 , C23F11/00 , F16L58/10 , F28F21/08
摘要： Provided are a copper-containing refrigerant pipe whose corrosion can be suppressed, a heat exchanger, and a method for producing a refrigerant pipe. A refrigerant pipe includes a pipe body including copper or a copper alloy and an anticorrosive film formed on the outer surface of the pipe body. The anticorrosive film is obtained by applying a coating agent to the outer surface of the pipe body. The coating agent contains one or more anticorrosive agents selected from the group consisting of (A) an organic sulfonate compound, (B) a polyhydric alcohol-organic acid ester compound, and (C) an aliphatic amine compound having 8 to 24 carbon atoms. When the coating agent includes an anticorrosive agent of (C) the aliphatic amine compound having 8 to 24 carbon atoms, (C) the aliphatic amine compound having 8 to 24 carbon atoms is included in an amount of 2.0 wt% or more and 10.0 wt% or less in the coating agent.

10. 发明授权

EP3388472B1 METHOD FOR PRODUCING LOW MOLECULAR WEIGHT POLYTETRAFLUOROETHYLENE 有权
公开(公告)号：EP3388472B1
公开(公告)日：2020-06-24
申请号：EP17837118.3
申请日：2017-08-04
申请人： Daikin Industries, Ltd.
发明人： YOSHIDA, Ken , YOSHIDA, Hirotoshi , HAGI, Keisuke , TSUJI, Masayuki , KATO, Taketo , TANAKA, Yuuji , YAMANAKA, Taku , KAWAHARA, Kazuya , SUKEGAWA, Masamichi , HOSOKAWA, Kazutaka
IPC分类号： C08F8/50 , C08F14/26 , C08K5/00 , C08L27/18 , C08J3/28 , C08J7/12 , C08F114/26 , C08K5/03 , C08K5/01

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