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公开(公告)号：US20180354874A1
公开(公告)日：2018-12-13
申请号：US16105513
申请日：2018-08-20
Applicant: AGC Inc.
Inventor： Shingo Nomura , Hidekazu Okamoto , Hirokazu Takagi
Abstract: There is provided an efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene, with fewer by-products such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane which are over-reduced products, in a method of obtaining 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1-1-dichloro-2,3,3,3-tetrafluoropropene. A method for producing 1-chloro-2,3,3,3-tetrafluoropropene, comprising: reacting 1,1-dichloro-2,3,3,3-tetrafluoropropene with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier in which a palladium catalyst having a specific surface area of 40 m2/g or less is carried on a carrier.
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公开(公告)号：US11548267B2
公开(公告)日：2023-01-10
申请号：US16285257
申请日：2019-02-26
Applicant: AGC Inc.
Inventor： Hiroki Hayamizu , Masato Fukushima , Hirokazu Takagi
Abstract: A heat cycle system is a heat cycle system (1) using a working medium containing hydrofluoroolefin (HFO) that has a double bond in a molecule structure, the heat cycle system (1) having a compressor (10), a high-pressure side heat exchanger (12), a low-pressure side heat exchanger (14), an expansion mechanism (13), and an acid detection means (40) which is disposed in a discharge pipe (21) connecting the compressor (10) and the high-pressure side heat exchanger (12) and which detects acid generated by decomposition of the working medium in a heat cycle.
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公开(公告)号：US11072734B2
公开(公告)日：2021-07-27
申请号：US16453092
申请日：2019-06-26
Applicant: AGC Inc.
Inventor： Masato Fukushima , Hiroaki Mitsuoka , Mai Tasaka , Daisuke Shirakawa , Hirokazu Takagi , Takeaki Arai
IPC: C09K5/04 , C10M171/00 , F25B1/00 , F25B31/00 , F25B43/00 , C10N20/02 , C10N20/00 , C10N30/02 , C10N40/16 , C10N40/30
Abstract: A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.
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公开(公告)号：US10418876B2
公开(公告)日：2019-09-17
申请号：US16106306
申请日：2018-08-21
Applicant: AGC Inc.
Inventor： Hiroki Hayamizu , Masato Fukushima , Hirokazu Takagi , Tetsuo Otsuka
IPC: H02K5/136 , F04B39/00 , F04B39/12 , F04B49/10 , F04C29/00 , F04C29/02 , H02K5/22 , H02K7/14 , F04C18/02 , F25B31/02
Abstract: A compressor includes a sealed container, a compression part provided in an upper part of the inside of the sealed container and configured to compress a working medium, an oil reservoir part provided in a bottom part of the inside of the sealed container and configured to reserve a lubricating oil therein, an electric drive part provided between the compression part and the oil reservoir part inside the sealed container and configured to drive the compression part, and a power source terminal provided to pass through a wall surface of the sealed container in a region of the oil reservoir part. The power source terminal is connectable to an external power source outside the sealed container and electrically connected to the electric drive part via a lead wire in the sealed container.
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公开(公告)号：US20180320942A1
公开(公告)日：2018-11-08
申请号：US16032654
申请日：2018-07-11
Applicant: AGC INC.
Inventor： Hiroki Hayamizu , Masato Fukushima , Hirokazu Takagi
CPC classification number: F25B43/00 , F25B1/00 , F25B9/008 , F25B41/062 , F25B49/027 , F25B2313/02741 , F25B2600/021
Abstract: A refrigeration cycle apparatus includes a compressor, a condenser, a pressure reducing mechanism and an evaporator and use a working fluid containing a hydrofluoroolefin (HFO). The compressor, condenser, pressure reducing mechanism and evaporator are connected with a pipeline to form a refrigeration cycle. A deoxidizing portion where the working fluid is brought into contact with a desiccant or a deoxidizer is provided at any place within the refrigeration cycle.
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Patent Agency Ranking
公开(公告)号：US10392546B2
公开(公告)日：2019-08-27
申请号：US15928805
申请日：2018-03-22
Applicant: AGC Inc.
Inventor： Masato Fukushima , Hiroaki Mitsuoka , Mai Tasaka , Daisuke Shirakawa , Hirokazu Takagi , Takeaki Arai
IPC: C09K5/04 , C10M171/00 , F25B1/00 , F25B31/00 , F25B43/00
Abstract: A composition for a heat cycle system and a heat cycle system employing the composition are provided. The composition has favorable lubricating properties and contains a working fluid for heat cycle and a refrigerant oil. The working fluid has a low global warming potential and can replace R410A. The working fluid contains an unsaturated fluorinated hydrocarbon compound having a specific structure. The refrigerant oil has a breakdown voltage of at least 25 kV, a hydroxyl value of at most 0.1 mgKOH/g, and a kinematic viscosity at 40° C. of from 5 to 200 mm2/s and a kinematic viscosity at 100° C. of from 2 to 30 mm2/s.
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公开(公告)号：US10377686B2
公开(公告)日：2019-08-13
申请号：US16105513
申请日：2018-08-20
Applicant: AGC Inc.
Inventor： Shingo Nomura , Hidekazu Okamoto , Hirokazu Takagi
Abstract: An efficient method for producing 1-chloro-2,3,3,3-tetorafluoropropene from 1,1-dichloro-2,3,3,3-tetrafluoropropene is provided. The method produces 1-chloro-2,3,3,3-tetorafluoropropene by reducing 1,1-dichloro-2,3,3,3-tetrafluoropropene with fewer over-reduced by-products, such as 2,3,3,3-tetrafluoropropene and 1,1,1,2-tetrafluoropropane. In the method, 1,1-dichloro-2,3,3,3-tetrafluoropropene reacts with hydrogen in a gas phase in the presence of a palladium catalyst-carrying carrier, in which a palladium catalyst having a specific surface area of 40 m2/g or less is carried on the carrier.
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公开(公告)号：US20180371958A1
公开(公告)日：2018-12-27
申请号：US16104179
申请日：2018-08-17
Applicant: AGC Inc.
Inventor： Masato Fukushima , Hirokazu Takagi
Abstract: There are provided a heat cycle system that uses a system for heat cycle designed to use 1,1,1,3,3-pentafluoropropane (HFC-245fa) as a working fluid as it is and is thereby excellent in economic efficiency, and is equal to or higher in cycle performance and lower in environmental burden than in the case of using HFC-245fa, and a heat cycle method using the heat cycle system. The heat cycle system includes a working fluid and a system for heat cycle, the system for heat cycle is suitable for HFC-245fa being used as a working fluid, and the working fluid contains 1-chloro-2,3,3,3-tetrafluoropropene, and the heat cycle method uses the heat cycle system.
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公开(公告)号：US11149177B2
公开(公告)日：2021-10-19
申请号：US16259342
申请日：2019-01-28
Applicant: AGC Inc.
Inventor： Mai Tasaka , Hirokazu Takagi , Masato Fukushima , Toshiyuki Tanaka
Abstract: There is provided a working fluid for heat cycle that uses (Z)-1-chloro-2,3,3,3-tetrafluoropropane (HCFO-1224yd(Z)) which has a less impact on the ozone layer, has a less impact on global warming, and has excellent cycle performance, the working fluid for heat cycle having sufficiently ensured stability and having high productivity. The working fluid for heat cycle contains HCFO-1224yd(Z) and an impurity, wherein the impurity includes a specific trace component, and a total content ratio of the trace component to a total amount of the working fluid is less than 1.5 mass %.
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公开(公告)号：US11046630B2
公开(公告)日：2021-06-29
申请号：US17092385
申请日：2020-11-09
Applicant: AGC Inc.
Inventor： Takuya Iwase , Satoshi Kawaguchi , Hirokazu Takagi
IPC: C07C17/389 , C07C21/18
Abstract: To produce, from a composition containing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene and a substance that may cause problems in reliability and performance, 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene in which the content of the substance has been reduced. This method for producing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene comprises bringing a composition containing 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene and at least one substance selected from the group consisting of water, 3,3,4,4,5,5-hexafluoro-1-pentyne, 1-chloro-3,3,4,4,5,5-hexafluoro-1-pentyne and an oxide, into contact with a solid adsorbent, to remove the substance from the composition.
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