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公开(公告)号：US20210246272A1
公开(公告)日：2021-08-12
申请号：US17049158
申请日：2019-04-19
Applicant: Arkema France
Inventor： Guillaume LE , Helene EGRET , Helena CHEMINET , Geoffroy Cammage , Amelie NOEL
Abstract: The present invention relates to a loose wax powder obtained from renewable materials, in which the particles have a particle size such that: the D90v is less than 20 microns the SPAN calculated by the formula (D90-D10)/D50 is less than 1.8 the volume percentage of particles with a diameter of at least 30 microns is less than 5%. The present invention also relates to a process for preparing such a powder.
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公开(公告)号：US20190071570A1
公开(公告)日：2019-03-07
申请号：US16071351
申请日：2017-01-27
Applicant: ARKEMA FRANCE
Inventor： Clio Cocquet , Quentin PINEAU , Karine LOYEN , François FERNAGUT , Helena CHEMINET
Abstract: The invention relates to a non-cross-linked copolymer foam with polyamide blocks and polyether blocks, wherein: the polyamide blocks of the copolymer have an average molar mass of from 200 to 1,500 g/mol; the polyether blocks of the copolymer have an average molar mass of from 800 to 2,500 g/mol; and the weight ratio of the polyamide blocks to the polyether blocks of the copolymer is from 0.1 to 0.9. The invention also relates to a method for manufacturing said foam and items manufactured from said foam.
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公开(公告)号：US20170172910A1
公开(公告)日：2017-06-22
申请号：US15300595
申请日：2015-03-31
Applicant: ARKEMA FRANCE
Inventor： Helena CHEMINET
CPC classification number: A61K8/97 , A61K8/0279 , A61K8/88 , A61Q19/02
Abstract: A composition including a support including porous polyamide particles, having a specific surface area BET greater than or equal to 8 m2/g, Glycyrrhiza glabra root extract as a cosmetic active substance impregnated on the support. Also, cosmetic products incorporating said composition, in particular for lightening the skin. The composition may be in the form of a powder.
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公开(公告)号：US20240018322A1
公开(公告)日：2024-01-18
申请号：US18356564
申请日：2023-07-21
Applicant: Arkema France
Inventor： Clio COCQUET , Helena CHEMINET , François FERNAGUT , Yves DEYRAIL , Quentin PINEAU
CPC classification number: C08J9/0061 , C08K3/013 , C08J9/0066 , C08J9/08 , C08J9/122 , C08L87/005 , C08J2201/03 , C08J2203/02 , C08J2203/06 , C08J2203/10 , C08J2203/22 , C08J2205/052 , C08J2367/00 , C08J2371/02 , C08J2375/04 , C08J2377/00 , C08K2003/262
Abstract: The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising:
from 90 to 99.9% by weight of said block copolymer; and
from 0.01 to 10% by weight of metal carbonate,
for the total weight of the foam composition.
The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.-
公开(公告)号：US20210261745A1
公开(公告)日：2021-08-26
申请号：US17256721
申请日：2019-07-02
Applicant: Arkema France
Inventor： Clio COCQUET , Helena CHEMINET , Yves DEYRAIL , Audrey DURIN , Marc MIRALLES
Abstract: The invention relates to a process for manufacturing a copolymer foam containing polyamide blocks and polyether blocks, comprising the following steps: mixing the copolymer melt with a blowing agent, said copolymer having a coefficient of thermal diffusivity a and a crystallization temperature Tc; providing a mold of thickness h at a temperature Tm; injecting the mixture of the copolymer and of the blowing agent at a temperature Tp, into the closed mold; foaming the mixture by opening the mold; in which the maintenance time between the injection of the mixture of the copolymer and of the blowing agent into the closed mold and the opening of the mold is within the range extending from (topt−25%) to (topt+25%), topt being expressed in seconds and obtained by equation (I): t opt = - 1 π 2 h 2 a ln ( π 4 T m - T c T m - T p ) , ( I ) in which a is expressed in m2/s, h is expressed in m and Tm, Tc and Tp are expressed in ° C.
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Patent Agency Ranking
公开(公告)号：US20190382546A1
公开(公告)日：2019-12-19
申请号：US16468197
申请日：2018-02-08
Applicant: Arkema France
Inventor： Clio COCQUET , Helena CHEMINET , François FERNAGUT , Yves DEYRAIL , Quentin PINEAU
Abstract: The present invention relates to a non-crosslinked block copolymer foam composition, characterised in that it is in the form of a polymer matrix comprising closed cells containing gas, said matrix comprising: from 90 to 99.9% by weight of said block copolymer; and from 0.01 to 10% by weight of metal carbonate, for the total weight of the foam composition. The present invention also relates to a foamable composition and a method for manufacturing said foam, as well as the use of the foam in sports shoe soles, balloons or balls, gloves, personal protection equipment, rail soles, automobile parts, construction parts, electrical and electronic equipment parts, audio equipment, sound- and/or heat-proofing, and parts used to damp vibrations.
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公开(公告)号：US20190085164A1
公开(公告)日：2019-03-21
申请号：US16082427
申请日：2017-03-16
Applicant: Arkema France
Inventor： Mathieu SABARD , Regis CIPRIANI , Karine LOYEN , Helena CHEMINET , René-Paul EUSTACHE
Abstract: Provided is a composition including (A) 65% to 95% of a polyamide mixture, (B) 7% to 30% of at least one impact modifier or of at least one core-shell entity or of a mixture thereof, and (C) 0 to 5% of at least one additive chosen from stabilizers, dyes, plasticizers, fibers, fillers, processing aids or a mixture thereof. The composition may be used, for example, to produce an article by extruding, injection molding, molding or thermoforming.
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公开(公告)号：US20220315701A1
公开(公告)日：2022-10-06
申请号：US17627142
申请日：2020-07-15
Applicant: Arkema France
Inventor： Quentin PINEAU , Clio COCQUET , Helena CHEMINET , Claude-Olivier BOISSIERE
Abstract: A method relating to a copolymer containing rigid polyamides blocks and flexible blocks including, relative to the total weight of the copolymer: from 55% to 90% by weight of flexible blocks, including at least 35% by weight from polyethylene glycol; from 10% to 45% by weight of rigid polyamide blocks, in which the mean carbon content of the repeating units of the polyamide blocks is greater than or equal to 7. A method also relating to a process for preparing such a copolymer, to a membrane including such a copolymer and to a process for preparing such a membrane.
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公开(公告)号：US20210292507A1
公开(公告)日：2021-09-23
申请号：US16763571
申请日：2018-11-16
Applicant: Arkema France
Inventor： Clio COQUET , Quentin P. PINEAU , Helena CHEMINET , Francois FERNAGUT
Abstract: The invention relates to a noncrosslinked block copolymer foam, comprising at least one rigid block and at least one flexible block, in which the copolymer includes at least one carboxylic acid chain end blocked with a polycarbodiimide. The invention also relates to a process for manufacturing this foam and to articles manufactured therefrom.
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公开(公告)号：US20160324756A1
公开(公告)日：2016-11-10
申请号：US15036625
申请日：2014-11-13
Applicant: ARKEMA FRANCE
Inventor： Helena CHEMINET , Stéfanie LAPORTE
CPC classification number: A61K8/88 , A61K8/0241 , A61K2800/412 , A61Q3/02
Abstract: The use of polyamide powder particles in a cosmetic composition for the nails for improving the rate of drying, the mechanical strength, the matt appearance, the sliding appearance and/or the rough appearance of a layer of said composition on the nail, wherein: the volume-average diameter of the particles is within the range from 1 to 120 μm, the content of PA powder is within the range from 0.1 to 15% by weight, with regard to the total weight of the composition, the powder is added directly to said composition, the composition thus added is a varnish base, a makeup varnish for the nails, a finishing composition for the nails and/or a cosmetic care composition for the nails, said composition being pigmented or transparent.
Abstract translation: 在指甲化妆品组合物中使用聚酰胺粉末颗粒，用于提高钉子上所述组合物层的干燥速度，机械强度，亚光外观，滑动外观和/或粗糙外观，其中： 颗粒的体积平均直径在1至120μm的范围内，PA粉末的含量在0.1至15重量％的范围内，关于组合物的总重量，将粉末直接加入到 所述组合物，由此添加的组合物是清漆基料，用于指甲的化妆清漆，用于指甲的整理组合物和/或用于指甲的化妆品护理组合物，所述组合物着色或透明。
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