Fluoropolymer Tape, Article Comprising a Fluoropolymer Tape and Process for Manufacturing a Fluoropolymer Tape
    1.
    发明申请
    Fluoropolymer Tape, Article Comprising a Fluoropolymer Tape and Process for Manufacturing a Fluoropolymer Tape 审中-公开
    含氟聚合物胶带,含氟聚合物胶带的制品和制造含氟聚合物胶带的方法

    公开(公告)号:US20080014423A1

    公开(公告)日:2008-01-17

    申请号:US11628709

    申请日:2005-06-10

    摘要: Tape comprising a polymer composition, said polymer composition comprising at least one fluoropolymer and a modifier consisting of at least one aromatic polyimide chosen from aromatic polyamide-imides and aromatic polyesterimides, and, optionally in addition, at least one aromatic polyimide chosen from aromatic polyimides other than aromatic polyamide-imides and aromatic polyesterimides, said modifier being comprised in the polymer composition in an amount of up to 75 wt. % (based on the total weight of the polymer composition). Article comprising said tape. Processes especially well-adapted for manufacturing said tape. Use of the above modifier as an additive of a polymer composition comprising a fluoropolymer, to increase the abrasion resistance either of a tape comprising said polymer composition, or of an article comprising an outermost layer which covers at least partially the article, said outer most layer comprising a tape comprising said polymer composition.

    摘要翻译: 包含聚合物组合物的胶带,所述聚合物组合物包含至少一种含氟聚合物和由选自芳族聚酰胺 - 酰亚胺和芳族聚酯酰亚胺的至少一种芳族聚酰亚胺组成的改性剂,以及任选地另外选自芳族聚酰亚胺其它 比芳族聚酰胺 - 酰亚胺和芳族聚酯酰亚胺,所述改性剂以高达75wt。 (基于聚合物组合物的总重量)。 文章包括所述胶带。 特别适用于制造所述胶带的工艺。 使用上述改性剂作为包含含氟聚合物的聚合物组合物的添加剂,以增加包含所述聚合物组合物的胶带或包含至少部分地覆盖制品的最外层的制品的耐磨性,所述最外层 包括包含所述聚合物组合物的胶带。

    Aqueous dispersions of fluoropolymers
    4.
    发明授权
    Aqueous dispersions of fluoropolymers 失效
    含氟聚合物的水分散体

    公开(公告)号:US06696512B2

    公开(公告)日:2004-02-24

    申请号:US10046883

    申请日:2002-01-17

    IPC分类号: C08K506

    摘要: Aqueous dispersions of fluoropolymers containing as stabilizer from 1 to 30% by weight with respect to the fluoropolymer, of a non ionic surfactant having the following structure: CH3(CH2)nO(C3H6O)p(CH2CH2O)mH   (I) wherein: n is in the range 8-20, preferably 12-15; m is in the range 5-20, preferably 7-12; p is in the range 1-8, preferably it is 1 or 2.

    摘要翻译: 含氟聚合物的水分散体含有相对于含氟聚合物为1至30重量%的非离子表面活性剂,其具有以下结构:其中:n在8-20,优选12-15的范围内; m在 范围5-20,优选7-12; p在1-8范围内,优选为1或2。

    Process for the preparation of aqueous dispersions of fluoropolymers
    6.
    发明授权
    Process for the preparation of aqueous dispersions of fluoropolymers 失效
    制备含氟聚合物水分散体的方法

    公开(公告)号:US06576703B2

    公开(公告)日:2003-06-10

    申请号:US09789728

    申请日:2001-02-22

    IPC分类号: C08L2712

    摘要: Process for the preparation of a dispersion based on homopolymers/copolymers of tetrafluoroethylene (TFE), said dispersion having a bimodal or multimodal distribution of the particle diameters, wherein the fraction of small particles is in the range 1.5-35% by weight calculated on the dry product; the ratio between the average diameter of the small particles with respect to the average diameter of the dispersion obtained from the polymerization being in the range 0.02-0.6; said process comprising the following essential steps: (a) preparation of an aqueous microemulsion comprising fluorinated surfactants and (per)fluoropolyether oils (PFPE); (b) feeding of the microemulsion into the polymerization reactor; (c) feeding of at least one fluorinated surfactant.

    摘要翻译: 用于制备基于四氟乙烯(TFE)的均聚物/共聚物的分散体的方法,所述分散体具有粒径的双峰或多峰分布,其中小颗粒的分数为1.5〜35重量% 干燥产品; 小颗粒的平均直径相对于由聚合得到的分散体的平均直径的比在0.02-0.6的范围内; 所述方法包括以下必要步骤:(a)制备包含氟化表面活性剂和(全)氟聚醚油(PFPE)的水性微乳液;(b)将微乳液进料到聚合反应器中;(c)进料至少一种氟化 表面活性剂。

    TFE polymerization process
    8.
    发明授权
    TFE polymerization process 有权
    TFE聚合工艺

    公开(公告)号:US06297334B1

    公开(公告)日:2001-10-02

    申请号:US09343237

    申请日:1999-06-30

    IPC分类号: C08F1426

    摘要: Process for the preparation of tetrafluoroethylene (TFE) polymer-based dispersions having diameter average sizes in the range 0.005-0.06 &mgr;m, which comprises: a) preparation of an aqueous perfluoropolyether (PFPE) microemulsion; b) microemulsion feeding into the polymerization reactor, in such amounts so that the microemulsion perfluoropolyetheral oil phase is present in a concentration higher than 2 ml for liter of reaction medium; c) reaction medium feeding in the gaseous TFE polymerization reactor, optional addition of surfactants, stabilizers, comonomers, transfer agents; d) addition of the initiator, stabilizers, comonomers and transfer agents; e) discharge from the reactor of the polymeric latex.

    摘要翻译: 制备直径平均尺寸在0.005-0.06μm的四氟乙烯(TFE)聚合物基分散体的方法,其包括:a)制备全氟聚醚(PFPE)微乳液; b)将微乳液进料到聚合反应器中, 这样的量使得微乳液全氟聚醚油相以升于1升反应介质中的浓度高于2ml; c)在气态TFE聚合反应器中进料的反应介质,任选加入表面活性剂,稳定剂,共聚单体,转移剂; d) 加入引发剂,稳定剂,共聚单体和转移剂; e)从聚合物胶乳的反应器中排出。