Coextrusion binder based on cografted metallocene polyethylene
    1.
    发明授权
    Coextrusion binder based on cografted metallocene polyethylene 有权
    基于共移植金属茂聚乙烯的共挤出粘合剂

    公开(公告)号:US06528587B2

    公开(公告)日:2003-03-04

    申请号:US09816662

    申请日:2001-03-26

    IPC分类号: B32B2708

    摘要: The present invention relates to a coextrusion binder comprising: 5 to 35 parts of a polymer (A) which itself consists of a blend of 80 to 20 parts of a metallocene polyethylene (A1) of relative density between 0.865 and 0.915 and of 20 to 80 parts of a non-metallocene LLDPE polyethylene (A2), the blend of (A1) and (A2) being cografted by an unsaturated carboxylic acid; 95 to 65 parts of a polyethylene (B) chosen from ethylene homopolymers or copolymers and elastomers; the blend of (A) and (B) being such that: the content of grafted unsaturated carboxylic acid is between 30 and 100 000 ppm, the MFI or melt flow index (ASTM D 1238 standard: 190° C./2.16 kg) is between 0.1 and 10 g/10 min. The present invention also relates to a multilayer structure.

    摘要翻译: 共挤出粘合剂本发明涉及一种共挤出粘合剂,其包含:5-35份聚合物(A),其本身由80至20份相对密度为0.865至0.915和20至80的茂金属聚乙烯(A1)的共混物 部分非金属茂LLDPE聚乙烯(A2),(A1)和(A2)的共混物由不饱和羧酸共同接枝; 95-65份选自乙烯均聚物或共聚物和弹性体的聚乙烯(B); (A)和(B)的共混物使得:接枝不饱和羧酸的含量为30-10000ppm,MFI或熔体流动指数(ASTM D 1238标准:190℃/ 2.16kg)为 介于0.1和10g / 10分钟之间。本发明还涉及一种多层结构。

    ADHESIVE COMPOSITION BASED ON ETHYLENE COPOLYMERS, USEFUL FOR EXTRUSION-COATING AND EXTRUSION-LAMINATION ON A VARIETY OF SUPPORTS
    4.
    发明申请
    ADHESIVE COMPOSITION BASED ON ETHYLENE COPOLYMERS, USEFUL FOR EXTRUSION-COATING AND EXTRUSION-LAMINATION ON A VARIETY OF SUPPORTS 审中-公开
    基于乙烯共聚物的粘合组合物,有助于挤出涂布和挤出层压在各种支持下

    公开(公告)号:US20090297857A1

    公开(公告)日:2009-12-03

    申请号:US11721716

    申请日:2005-12-13

    摘要: The invention concerns an adhesive composition consisting of at least one ethylene polymer or copolymer, said composition comprising at least one unsaturated carboxylic acid ester comonomer, and at least one functional comonomer, useful in an extrusion-coating process for application on a support or in an extrusion-lamination process for bonding together several supports of different type or not, in a wide temperature range. The invention is characterized in that said composition has an unsaturated carboxylic acid ester content, higher than 5 wt. % and in that the functional comonomer consists of at least one reactive function in the form of acid group, anhydride or epoxy, whereof the proportion is less than 1 wt. % of the composition. Said composition has advantageous uses, in particular for bonding together substrates selected among aluminum, paper or cardboard, cellophane, films based of polyethylene, polypropylene, polyamide, polyester, polyvinyl chloride (PVC) polyvinylidene chloride (PVDC), poly-acrylonitrile (PAN) resins, oriented or not, metal-coated or not, physically or chemically treated or not and films coated with a thin inorganic barrier layer, such as polyester (PET, SiOx or AlOx).

    摘要翻译: 本发明涉及由至少一种乙烯聚合物或共聚物组成的粘合剂组合物,所述组合物包含至少一种不饱和羧酸酯共聚单体和至少一种功能性共聚单体,其可用于挤出涂布过程,用于在载体上或在 挤出层压工艺,用于在很宽的温度范围内将不同类型的支撑物结合在一起。 本发明的特征在于所述组合物的不饱和羧酸酯含量高于5wt。 %,并且功能性共聚单体由酸基,酸酐或环氧基的形式的至少一种反应性官能团组成,其比例小于1重量%。 %的组成。 所述组合物具有有利的用途,特别是用于将选自铝,纸或纸板,玻璃纸,聚乙烯,聚丙烯,聚酰胺,聚酯,聚氯乙烯(PVC)聚偏二氯乙烯(PVDC),聚丙烯腈(PAN) 未被金属涂覆的物理或化学处理的树脂,以及涂覆有薄的无机阻挡层的膜,例如聚酯(PET,SiO x或AlO x)。

    Adhesive composition based on ethylene copolymers, useful for extrusion-coating and extrusion-lamination on a variety of supports

    公开(公告)号:US11459477B2

    公开(公告)日:2022-10-04

    申请号:US11721716

    申请日:2005-12-13

    IPC分类号: C09D123/08 C09J123/08

    摘要: The invention concerns an adhesive composition consisting of at least one ethylene polymer or copolymer, said composition comprising at least one unsaturated carboxylic acid ester comonomer, and at least one functional comonomer, useful in an extrusion-coating process for application on a support or in an extrusion-lamination process for bonding together several supports of different type or not, in a wide temperature range. The invention is characterized in that said composition has an unsaturated carboxylic acid ester content higher than 5 wt % and in that the functional comonomer consists of at least one reactive function in the form of an acid group, anhydride or epoxy, whereof the proportion is less than 1 wt % of the composition. Said composition has advantageous uses, in particular for bonding together substrates selected among aluminum, paper or cardboard, cellophane, films based of polyethylene, polypropylene, polyamide, polyester, polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyacrylonitrile (PAN) resins, oriented or not, metal-coated or not, physically or chemically treated or not and films coated with a thin inorganic barrier layer, such as polyester (PET, SiOx or AlOx).