Composition based on an ethylene-vinyl alcohol copolymer and its use
    21.
    发明授权
    Composition based on an ethylene-vinyl alcohol copolymer and its use 失效
    基于乙烯 - 乙烯醇共聚物的组合物及其用途

    公开(公告)号:US06294609B1

    公开(公告)日:2001-09-25

    申请号:US09487203

    申请日:2000-01-19

    IPC分类号: C08L2904

    摘要: Particularly useful as a barrier layer in packaging, e.g. multilayer structures, is a composition based on an ethylene-vinyl alcohol copolymer comprising: 50 to 98% by weight of an EVOH copolymer 1 to 50% by weight of a polyethylene (A) 1 to 15% by weight of a polyethylene (B) being a blend of a polyethylene (B1) and a polyethylene (B2) chosen from elastomers, very-low-density polyethylenes and metallocene polyethylenes, the blend of (B1) and (B2) being cografted by an unsaturated carboxylic acid or a functional acid derivative thereof.

    摘要翻译: 特别用作包装中的阻挡层,例如。 多层结构是基于乙烯 - 乙烯醇共聚物的组合物,其包含:50〜98重量%的EVOH共聚物,1〜50重量%的聚乙烯(A),1〜15重量%的聚乙烯(B)为 选自弹性体,极低密度聚乙烯和茂金属聚乙烯的聚乙烯(B1)和聚乙烯(B2)的共混物,(B1)和(B2)的共混物由不饱和羧酸或官能酸衍生物共同接枝 其中。

    Thermoplastic resin compositions comprising a rigid dispersed phase
    22.
    发明授权
    Thermoplastic resin compositions comprising a rigid dispersed phase 失效
    包含刚性分散相的热塑性树脂组合物

    公开(公告)号:US06462129B1

    公开(公告)日:2002-10-08

    申请号:US09551406

    申请日:2000-04-17

    IPC分类号: C08F29100

    摘要: The invention relates to a thermoplastic composition comprising: a matrix-forming thermoplastic polymer (M), rigid nodules obtained by radical polymerization, and optionally an impact modifier (S). It also relates to a process comprising, in a first stage, forming a homogeneous solution of precursor of the nodules in the thermoplastic (M) in the molten state, in a second stage, introducing the initiator while remaining at a temperature below which the initiator becomes active, and, in a third stage, heating to a temperature sufficient to cause crosslinking of the precursor and to form rigid nodules while kneading the composition, the impact modifier being introduced during the first or the second stage.

    摘要翻译: 本发明涉及一种热塑性组合物,其包含:形成基质的热塑性聚合物(M),通过自由基聚合获得的刚性结节和任选的抗冲改性剂(S)。 它还涉及一种方法,其包括在第一阶段中在熔融状态下在热塑性(M)中形成均匀的结核前体的溶液,在第二阶段中,引入引发剂,同时保持在低于该温度的引发剂 并且在第三阶段中,加热至足以引起前体交联的温度,并在捏合组合物的同时形成刚性结节,所述抗冲改性剂在第一阶段或第二阶段期间被引入。

    Composition based on an ethylene-vinyl alcohol copolymer and its use
    23.
    发明授权
    Composition based on an ethylene-vinyl alcohol copolymer and its use 失效
    基于乙烯 - 乙烯醇共聚物的组合物及其用途

    公开(公告)号:US06451911B1

    公开(公告)日:2002-09-17

    申请号:US09487205

    申请日:2000-01-19

    IPC分类号: C08L7700

    摘要: The invention relates to a composition based on an ethylene-vinyl alcohol copolymer comprising: 50 to 98% by weight of an EVOH copolymer 1 to 50% by weight of a polyethylene (A) 1 to 15% by weight of a polymer (B) resulting from the reaction (i) of a copolymer (B1) of ethylene and of an unsaturated monomer X grafted or copolymerized with (ii) a polyamide (B2). It also relates to a multilayer structure comprising a layer consisting of this composition. This structure is useful for making packaging. The composition of the invention also adheres well to PET, this property being useful in coinjection to make bioriented preforms.

    摘要翻译: 本发明涉及一种基于乙烯 - 乙烯醇共聚物的组合物,其包含:50〜98重量%的EVOH共聚物1〜50重量%的聚乙烯(A),1〜15重量%的聚合物(B),得到 由乙烯和(ii)聚酰胺(B2)接枝或共聚的不饱和单体X的共聚物(B1)的反应(i)。 它还涉及包含由该组合物组成的层的多层结构。 这种结构对于制造包装是有用的。 本发明的组合物还可以很好地粘附到PET上,这种性质可用于共注射以制备双目标的预型件。

    Polymerization in the presence of a stable free radical and of an iniferter
    24.
    发明授权
    Polymerization in the presence of a stable free radical and of an iniferter 失效
    在稳定的自由基和引发剂的存在下进行聚合

    公开(公告)号:US06255422B1

    公开(公告)日:2001-07-03

    申请号:US08974091

    申请日:1997-11-19

    IPC分类号: C08F248

    摘要: The invention relates to a process for the polymerization or copolymerization of at least one monomer which can be polymerized or copolymerized by the radical route in the presence of a stable free radical and of an iniferter. The presence of the stable free radical greatly modifies the behavior of the iniferter during the polymerization or copolymerization, so that undesirable reactions are much reduced. It is possible, rapidly and with a high yield, to polymerize or copolymerize in the presence of an iniferter in order to result in a polymer or copolymer with a reduced polydispersity and with a monomodal molecular mass distribution.

    摘要翻译: 本发明涉及一种在稳定的自由基和引发剂存在下通过自由基途径聚合或共聚的至少一种单体的聚合或共聚的方法。稳定的自由基的存在极大地改变了该行为 在聚合或共聚期间的引发剂,使得不期望的反应大大降低。 在引发剂存在下,可以快速且高产率聚合或共聚,以产生具有降低的多分散性和单峰分子量分布的聚合物或共聚物。

    Controlled radical polymerization process using a small amount of stable free radical
    25.
    发明授权
    Controlled radical polymerization process using a small amount of stable free radical 失效
    受控自由基聚合过程中使用少量稳定的自由基

    公开(公告)号:US06911511B1

    公开(公告)日:2005-06-28

    申请号:US09215367

    申请日:1998-12-18

    申请人: Denis Bertin

    发明人: Denis Bertin

    CPC分类号: C08F4/00

    摘要: The invention relates to a process for the polymerization of at least one monomer which can be polymerized via a radical route, in the presence of a stable free radical and of a polymerization initiator, such that, per 100 mol of monomer, the molar amounts of stable radical (SFR) and of initiator (INIT) are such that [(SFR)×FSFR]/[(INIT)×FINIT]

    摘要翻译: 本发明涉及一种聚合至少一种单体的方法,所述单体可以通过自由基途径在稳定的自由基和聚合引发剂的存在下聚合,使得每100摩尔的单体的摩尔量 稳定自由基(SFR)和引发剂(INIT)是这样的,使得[(SFR)x F SFR 1 / [(INIT)x F INIT] <0.15和F < SFR X(SFR)<0.2MOL,其中F SFR表示稳定自由基的官能团,并且F INIT 表示引发剂的官能度。 根据本发明的方法具有有利的动力学,允许生产接枝或嵌段共聚物并且可以在挤出机中进行。

    Copolymer grafted via radical polymerization in the presence of stable radicals, its preparation and its uses
    26.
    发明授权
    Copolymer grafted via radical polymerization in the presence of stable radicals, its preparation and its uses 失效
    共聚物通过自由基聚合在稳定的自由基存在下接枝,其制备及其用途

    公开(公告)号:US06335401B1

    公开(公告)日:2002-01-01

    申请号:US09164717

    申请日:1998-10-01

    IPC分类号: C08L5100

    摘要: The present invention relates to a grafted copolymer bearing grafts of formula (I): —O—PM1—(PM2)—T  (I) in which: PM1 represents a polymer block obtained by (co)polymerization of at least one monomer M1 via a radical route; and PM2, which is optionally present, represents a polymer block obtained by (co)polymerization of at least one monomer M2 via a radical route; and T represents the residue of a stable radical T•.

    摘要翻译: 本发明涉及具有式(I)的接枝接枝物的接枝共聚物:其中:PM1表示通过自由基途径(共)聚合至少一种单体M1而获得的聚合物嵌段; 和任选存在的PM2表示通过自由基途径(共)聚合至少一种单体M2获得的聚合物嵌段; 和T表示稳定基团T的残基