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公开(公告)号：US20230127075A1
公开(公告)日：2023-04-27
申请号：US17798227
申请日：2021-02-08
申请人： ARKEMA FRANCE
发明人： Geoffroy CAMMAGE , Benoît BRULE
摘要： The present invention relates to a polyamide powder having a high glass transition temperature and to the corresponding preparation method. The invention also relates to the articles made therefrom and to a method for the production thereof.
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公开(公告)号：US11629278B2
公开(公告)日：2023-04-18
申请号：US16962143
申请日：2019-02-13
申请人： ARKEMA FRANCE
发明人： Wissam Rached
IPC分类号： C09K5/04 , C10M105/38 , C10N30/02 , C10N40/30
摘要： A method for transferring heat using a heat transfer facility containing a heat transfer composition, said heat transfer composition including a refrigerant, which includes 2,3,3,3-tetrafluoropropene, and a lubricant. The lubricant includes a polyol ester, and the solubility of the 2,3,3,3-tetrafluoropropene in the lubricant at 0° C. and at an absolute pressure of 2.2 bar is less than the solubility of 1,1,1,2-tetrafluoroethane in the lubricant at 0° C. and at an absolute pressure of 2.0 bar. A method including the successive steps of: evaporating a refrigerant; superheating the refrigerant; and compressing the refrigerant.
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公开(公告)号：US11608315B2
公开(公告)日：2023-03-21
申请号：US16956201
申请日：2018-12-20
申请人： Arkema France , Université Lille 1—Sciences et Technologies , Centre National De La Recherche Scientifique—CNRS
IPC分类号： C07C319/06 , C01B32/77 , B01J21/06 , B01J23/28 , B01J35/10 , C07C319/02 , C07C321/04 , C01B32/70 , C07C319/28 , C07C319/14
摘要： The invention relates to a process for preparing methyl mercaptan from a mixture of carbon oxide, hydrogen sulfide and hydrogen, in the presence of a catalyst based on molybdenum and potassium supported on zirconia, said catalyst not comprising any promoter.
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公开(公告)号：US20230073050A1
公开(公告)日：2023-03-09
申请号：US17789305
申请日：2020-12-22
申请人： Arkema France
摘要： The present invention relates to a crosslinkable composition comprising a mono(meth)acrylate comprising a 1,3-dioxolane ring, another mono(meth)acrylate and also a (meth)acrylated oligomer. The invention also relates to a process for producing a crosslinked product, in particular a 3D object, from this composition, and also to the use of this composition for obtaining an ink, a coating, a sealant, an adhesive, a molded material, an inking plate or a 3D object. The invention further relates to the use of a mono(meth)acrylate having a 1,3-dioxolane ring in a composition for 3D printing.
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公开(公告)号：US11578345B2
公开(公告)日：2023-02-14
申请号：US16473900
申请日：2017-12-21
申请人： Arkema France
发明人： Georges Fremy , Arnaud Masselin
IPC分类号： C12P13/12 , C07C323/58
摘要： Provided is process for the synthesis of at least one functionalized organic polysulfide.
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公开(公告)号：US20230021679A1
公开(公告)日：2023-01-26
申请号：US17783321
申请日：2020-12-18
申请人： ARKEMA FRANCE
发明人： Bruno VAN HEMELRYCK , Isabelle MASI
摘要： The present invention relates to a method for polymerising an aqueous suspension of styrene using at least one organic hemiperoxyacetal peroxide, the method comprising a step a) of keeping the aqueous suspension of styrene comprising the organic hemiperoxyacetal peroxide at a temperature below the 1-hour half-life temperature of the organic hemiperoxyacetal peroxide, preferably at 5 to 25° C. below the 1-hour half-life temperature of the organic peroxide, for at least 30 minutes.
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公开(公告)号：US20230016226A1
公开(公告)日：2023-01-19
申请号：US17619479
申请日：2020-06-12
申请人： Arkema France , Centre National de la Recherche Scientifique (CNRS) , Universite d'Aix-Marseille
摘要： The present invention relates to a selective process for preparing sulfones from sulfides by enzymatic catalysis, and to a composition comprising a symmetrical sulfide, an oxidoreductase enzyme catalyzing the oxidation of said symmetrical sulfide to symmetrical sulfone; optionally at least one cofactor C of said enzyme E; and an oxidant, which allows in particular the implementation of said process.
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公开(公告)号：US20220411544A1
公开(公告)日：2022-12-29
申请号：US17777293
申请日：2020-11-30
申请人： Arkema France
发明人： Aline Couffin , Philippe Hajji , Alexandre Vermogen , Elisabeth Bay , Jean-Claude Saint-Martin , Vinciane Chartois
摘要： The present invention relates to a composition comprising a multistage polymer and a (meth)acrylic polymer in form of a porous polymer powder, its process of preparation and its use. The present invention also relates to a composition in form of a porous polymer powder comprising a multistage polymer in form of polymeric particles made by a multistage process and a (meth)acrylic polymer, while the (meth)acrylic polymer possesses a medium molecular weight. The present invention further relates to polymer composition in form of a porous polymer powder comprising polymeric particles made by a multistage process comprising at least two stages and a (meth)acrylic polymer, its process of preparation, its use and compositions and articles comprising it.
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公开(公告)号：US20220410500A1
公开(公告)日：2022-12-29
申请号：US17780317
申请日：2020-11-25
申请人： ARKEMA FRANCE , INSTITUT DE SOUDURE
发明人： Aurélien PHILIPPE , Philippe KLEIN , Michel GLOTIN
摘要： The present invention relates to a method for evaluating an assembly by welding of parts made of thermoplastic materials, to a test piece and its associated uses, to an installation for implementing this method and to the associated welding system.
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公开(公告)号：US20220396713A1
公开(公告)日：2022-12-15
申请号：US17681333
申请日：2022-02-25
申请人： Arkema France
发明人： Gregory FILOU , Cyrille MATHIEU
摘要： A pulverulent composition for the manufacture of articles having a metallic appearance that is stable over time and an improved resistance to penciling, the composition including: from 50 to 99.9% by weight of at least one thermoplastic polymer, from 0.1 to 5% by weight of at least one effect pigment, from 0 to 0.3% by weight of at least one metallic pigment relative to the total weight of the composition.
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