HIGHLY FLUORINATED ELASTOMERS
    26.
    发明申请
    HIGHLY FLUORINATED ELASTOMERS 有权
    高荧光弹性体

    公开(公告)号:US20170066877A1

    公开(公告)日:2017-03-09

    申请号:US15122538

    申请日:2015-03-03

    CPC classification number: C08G65/007 C08F214/262 C08K5/06 C08L23/28

    Abstract: Described herein is a peroxide curable, highly fluorinated elastomer derived from (a) a fluorinated di-iodo ether compound of the following formula I: Rf—CF(I)—(CX2)n(CX2CXR)m—O—R″f-Ok—(CXR′CX2)p—(CX2)q—CF(I)—R′f wherein X is independently selected from F, H, and Cl; Rf and R′f are independently selected from F and a monovalent perfluoroalkane having 1-3 carbons; R is F, or a partially fluorinated or perfluorinated alkane comprising 1-3 carbons; R″f is a divalent fluoroalkylene having 1-5 carbons or a divalent fluorinated alkylene ether having 1-8 carbons and at least one ether linkage; k is 0 or 1; and n, m, and p are independently selected from an integer from 0-5, with the proviso that when k is 0, n+m is at least 1 and p+q is at least 1; and (b) a fluorinated monomer.

    Abstract translation: 本文描述的是一种过氧化物可固化的高度氟化的弹性体,其衍生自(a)下式I的氟化二碘醚化合物:Rf-CF(I) - (CX2)n(CX2CXR)m-O-R“f- (CXR'CX2)p-(CX2)q-CF(I)-R'f其中X独立地选自F,H和Cl; Rf和R'f独立地选自F和具有1-3个碳的单价全氟烷烃; R是F,或包含1-3个碳的部分氟化或全氟化烷烃; R“f是具有1-5个碳的二价氟代亚烷基或具有1-8个碳原子和至少一个醚键的二价氟化亚烷基醚; k为0或1; 并且n,m和p独立地选自0-5的整数,条件是当k为0时,n + m为至少1,p + q为至少1; 和(b)氟化单体。

    TETRAFLUOROETHYLENE POLYMER DISPERSIONS STABILIZED WITH ALIPHATIC NON-IONIC SURFACTANTS
    27.
    发明申请
    TETRAFLUOROETHYLENE POLYMER DISPERSIONS STABILIZED WITH ALIPHATIC NON-IONIC SURFACTANTS 审中-公开
    与非离子表面活性剂稳定的四氯氟乙烯聚合物分散体

    公开(公告)号:US20160347966A1

    公开(公告)日:2016-12-01

    申请号:US15115235

    申请日:2015-01-29

    Abstract: An aqueous dispersion comprising a tetrafluoroethylene core-shell polymer and at least one surfactant corresponding to the general formula R10-[CH2CH20]n[R20]m-R3 wherein R1 represents a linear or branched aliphatic hydrocarbon group having at least 8 carbon atoms, preferably 8 to 18 carbon atoms, R2 represents an alkylene having 3 carbon atoms, R3 represents hydrogen, a C1-C3 alkyl group, or a C1-C3 hydroxyalkyl group, n has a value of 0 to 40, m has a value of 0 to 40 and the sum of n+m is at least 2, wherein the dispersion is free of fluorinated emulsifiers or contains them in an amount of less than 50 ppm based on the weight of the dispersion and wherein the core-shell polymer contains an outer shell of tetrafluoroethylene homopolymer. Further provided are methods of making the dispersions, coating compositions comprising the dispersions and article coated by the coating composition.

    Abstract translation: 包含四氟乙烯核 - 壳聚合物和至少一种对应于通式R 10 - [CH 2 CH 2 O] n [R 20] m -R 3的表面活性剂的水分散体,其中R 1表示具有至少8个碳原子的直链或支链脂族烃基,优选 8至18个碳原子,R 2表示具有3个碳原子的亚烷基,R 3表示氢,C 1 -C 3烷基或C 1 -C 3羟烷基,n的值为0至40,m的值为0至 40,并且n + m的总和为至少2,其中所述分散体不含氟化乳化剂或基于分散体的重量以小于50ppm的量包含它们,并且其中所述核 - 壳聚合物包含外壳 的四氟乙烯均聚物。 还提供了制备分散体的方法,涂料组合物包含由涂料组合物涂覆的分散体和制品。

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