HYDROLYSIS-RESISTANT, CO2-PERMEABLE BLOCK COPOLYMER

    公开(公告)号:US20200299447A1

    公开(公告)日:2020-09-24

    申请号:US16770651

    申请日:2018-12-07

    Applicant: Arkema France

    Abstract: The invention relates to a block copolymer comprising at least one rigid polyamide block and at least one flexible block, characterized in that the flexible block has an NH2/OH ratio of concentrations of amine chain ends to alcohol chain ends which is within the range from 30 to 150, said concentrations being measured by 1H NMR (TFanh./CD2Cl23). The invention also relates to the use of a flexible block for manufacturing a copolymer containing polyamide blocks and flexible blocks that is both hydrolysis-resistant and CO2-permeable, with a permeability to CO2 of at least 10 000 cm3/m2/24 h/atm for a 25 μm film of said copolymer, characterized in that said flexible block has a ratio of amine chain ends to acid chain ends which is within the range from 30 to 150.

    MONOFILAMENT BASED ON A POLYAMIDE COMPOSITION
    17.
    发明申请
    MONOFILAMENT BASED ON A POLYAMIDE COMPOSITION 审中-公开
    基于聚酰胺组合物的单体

    公开(公告)号:US20150065648A1

    公开(公告)日:2015-03-05

    申请号:US14477053

    申请日:2014-09-04

    Applicant: ARKEMA FRANCE

    CPC classification number: D01F6/60 B29C48/022 B29C48/05 B29K2077/00 C08G69/28

    Abstract: A monofilament made from a polyamide composition including at least 70 wt. % of a polyamide resulting from the condensation of: an aliphatic diamine having 4 to 18 carbon atoms, together with a (cyclo)aliphatic diacid having 10 to 18 carbon atoms, and with an aliphatic monocarboxylic acid having 2 to 12 carbon atoms as a chain stopping agent. Also, a process for making this monofilament.

    Abstract translation: 由聚酰胺组合物制成的单丝,其包含至少70重量% 由以下物质缩合得到的聚酰胺:具有4至18个碳原子的脂肪族二胺与具有10至18个碳原子的(环)脂族二酸和具有2至12个碳原子的脂肪族单羧酸作为链 停药 另外,制作这种单丝的过程。

    BATTERY GASKET BASED ON A POLYAMIDE COMPOSITION
    18.
    发明申请
    BATTERY GASKET BASED ON A POLYAMIDE COMPOSITION 审中-公开
    基于聚酰胺组合物的电池垫片

    公开(公告)号:US20150065634A1

    公开(公告)日:2015-03-05

    申请号:US14473010

    申请日:2014-08-29

    Applicant: ARKEMA FRANCE

    Abstract: A gasket for a battery, wherein the gasket is made from a polyamide composition including at least 70 wt. % of a polyamide X.Y, wherein X and Y represent respective residues from the condensation of an aliphatic diamine comprising 4 to 18 carbon atoms, and preferably 5 to 12 carbon atoms, with a (cyclo)aliphatic diacid including 10 to 18 carbon atoms, and wherein the polyamide composition further includes a nucleating agent.

    Abstract translation: 一种用于电池的垫圈,其中所述垫圈由聚酰胺组合物制成,所述聚酰胺组合物包含至少70wt。 %的聚酰胺XY,其中X和Y表示包含4至18个碳原子,优选5至12个碳原子的脂族二胺与包含10至18个碳原子的(环)脂族二酸的缩合的各残基,以及 其中所述聚酰胺组合物还包含成核剂。

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