METHOD FOR CHEMICAL POLISH FOR METAL PIECES

    公开(公告)号:US20220372633A1

    公开(公告)日:2022-11-24

    申请号:US17624068

    申请日:2020-07-21

    Applicant: Arkema France

    Inventor: Maho YASUDA

    Abstract: A method for chemically polishing a metal surface within a metal-polymer composite, where the composite includes at least one metal part and at least one part made of a polymer composition, the method including the step of: (i) contacting the surface of at least one metal part at least partially with an aqueous solution including an oxidizing agent and an alkaline agent, at a temperature and for a duration sufficient to obtain a shiny metal surface. Also a metal-polymer composite that includes at least one part made of a polymer composition and at least one chemically polished metal part and that is obtainable by the method and to a product including the metal-polymer composite.

    THERMOSETTING MATERIALS WITH IMPROVED FRACTURE TOUGHNESS
    2.
    发明申请
    THERMOSETTING MATERIALS WITH IMPROVED FRACTURE TOUGHNESS 审中-公开
    具有改进的断裂韧性的热成型材料

    公开(公告)号:US20160068675A1

    公开(公告)日:2016-03-10

    申请号:US14786058

    申请日:2014-04-10

    Applicant: ARKEMA FRANCE

    Abstract: The present invention relates to a composition including, by weight, the total being 100%: 50 to 99% of a curable resin and of a curing agent in a molar ratio in the range of 1/5 to 5/1, and 1 to 50% of a mixture: of a polyamide which includes at least one monomer resulting from the condensation of a diacid and of a diamine of formula (1) where: R1 is H or —Z1-NH2 and Z1 is an alkyl, a cycloalkyl or an aryl having up to 15 carbon atoms, and R2 is H or —Z2-NH2 and Z2 is an alkyl, a cycloalkyl or an aryl having up to 15 carbon atoms, R1 and R2 being either identical or different, and of an oligomer made from butadiene and acrylonitrile which are terminated by carboxyl functions or by amine functions, such as the reactive rubbers CTBN or ATBN; the polyamide and the oligomer being present in respective proportions of 1/10 to 10/1 by weight.

    Abstract translation: 本发明涉及一种组合物,其组合物的重量百分比为100%:50〜99%的固化性树脂和固化剂,其摩尔比为1/5〜5/1,1〜 50%的混合物:包含由二酸和式(1)的二胺缩合得到的至少一种单体的聚酰胺,其中:R1是H或-Z1-NH2,Z1是烷基,环烷基或 具有至多15个碳原子的芳基,R2是H或-Z2-NH2,Z2是具有至多15个碳原子的烷基,环烷基或芳基,R1和R2可以相同或不同, 由通过羧基官能或胺官能团终止的丁二烯和丙烯腈,例如反应性橡胶CTBN或ATBN; 聚酰胺和低聚物以1/10至10/1重量比的比例存在。

    METHOD FOR PRODUCING METAL-POLYMER COMPOSITES

    公开(公告)号:US20220371241A1

    公开(公告)日:2022-11-24

    申请号:US17616718

    申请日:2020-06-04

    Applicant: Arkema France

    Inventor: Maho YASUDA

    Abstract: A method for producing metal-polymer composites which include at least one metal part and at least one part made of a polymer composition, the method including the steps of: treating the surface of at least one metal part at least partially with a solution of triazine thiol derivative to obtain a treated metal surface; and contacting the treated metal surface at least partially with at least one polymer composition so as to obtain a metal-polymer composite, wherein the polymer composition includes at least one semi-crystalline polyamide. Also, a metal-polymer composite that includes at least one part made of a polymer composition and at least one metal part and that is obtainable by the method and to a product including the metal-polymer composite.

    TRANSPARENT POLYAMIDE-BASED COMPOSITION COMPRISING GLASS AS FILLER
    4.
    发明申请
    TRANSPARENT POLYAMIDE-BASED COMPOSITION COMPRISING GLASS AS FILLER 审中-公开
    以透明聚酰胺为基础的组合物,包括玻璃作为填料

    公开(公告)号:US20160369098A1

    公开(公告)日:2016-12-22

    申请号:US15123420

    申请日:2015-02-27

    Applicant: ARKEMA FRANCE

    Abstract: The use of at least one semi-crystalline polyamide in a glass-charged amorphous polyamide resin for producing a composition which is more transparent than the resin. Polyamide-based transparent composition manufactured according to the use of the semi-crystalline polyamide, including: from 5.0 to 40.0% by weight of semicrystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 5.0 to 40.0%, preferably from 5.0 to 30.0%, by weight of glass filler, and optionally: from 0.0 to 5.0% by weight of PEBA, from 0.0 to 5.0% by weight of additives, with respect to the total weight of the composition.

    Abstract translation: 在玻璃化的无定形聚酰胺树脂中使用至少一种半结晶聚酰胺来制备比树脂更透明的组合物。 根据半结晶聚酰胺的使用制造的聚酰胺类透明组合物,包括:5.0至40.0重量%的半结晶聚酰胺,20.0至80.0重量%的至少一种无定形,透明和至少部分脂环族聚酰胺 ,5.0至40.0%,优选5.0至30.0重量%的玻璃填料,和任选的:0.0-5.0重量%的PEBA,0.0-5.0重量%的添加剂,相对于 组成。

    POLYAMIDE COMPOSITION USEFUL FOR THE MANUFACTURE OF FILM FOR FOOD PACKAGING

    公开(公告)号:US20240301204A1

    公开(公告)日:2024-09-12

    申请号:US18256732

    申请日:2021-12-10

    Applicant: ARKEMA FRANCE

    Inventor: Maho YASUDA

    Abstract: The invention is directed in particular to a polyamide composition comprising:



    (A) 70-99.9 wt. % of polyamide 6 and/or polyamide 66;
    (B) 0.01-30 wt. % of at least one long chain semi-crystalline polyamide; and
    (C) 0-30 wt. % of one or more additives,
    it being understood that (A), (B) and (C) add up to 100 wt. %.




    It also concerns a process for its manufacture, its use for the manufacture of films, films comprising said polyamide compositions and their use for food packaging, the use of semi-crystalline long chain polyamide to improve the break stress of a film comprising polyamide 6 and/or polyamide 66 and a food packaging comprising said polyamide composition or said film.

    TRANSPARENT POLYAMIDE-BASED COMPOSITION COMPRISING A GLASS FILLER WITH LOW SILICA CONTENT

    公开(公告)号:US20200255661A1

    公开(公告)日:2020-08-13

    申请号:US16651598

    申请日:2018-09-26

    Applicant: Arkema France

    Abstract: The present invention relates to transparent polyamide-based composition, comprising: from 5.0 to 40.0% by weight of semi-crystalline polyamide, from 20.0 to 80.0% by weight of at least one amorphous, transparent and at least partially cycloaliphatic polyamide, from 0.0 to 5.0% by weight of PEBA, from 0.0 to 5.0% by weight of additives, and from 5.0 to 50.0%, preferably from 10.0 to 40.0% by weight, preferably from 20.0 to 30.0% by weight by weight of glass filler, where the glass filler, expressed as % by weight with respect to the total weight of filler, less than 60 wt. % silica (SiO2) and more than 5 wt. % of boron oxide (B2O3). The invention also relates to the manufacture of said composition, its use for the manufacture of transparent articles, said transparent articles and their process of manufacture.

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