Aromatic polyformal blends
    53.
    发明授权
    Aromatic polyformal blends 失效
    芳香族聚异丁烯共混物

    公开(公告)号:US4497924A

    公开(公告)日:1985-02-05

    申请号:US485949

    申请日:1983-04-18

    Abstract: A moldable and compatible blend of 5 to 95 weight percent of an aromatic polyformal comprising from about 20 weight percent to 100 weight percent of repeating units (I) having the formula ##STR1## and from 0 weight percent to about 80 weight percent of repeating units (II) having the formula ##STR2## in which the repeating units (I) and the repeating units (II) are connected by interbonding units (III) having the formula--CH.sub.2 -- (III)wherein Y is selected from alkyl groups of 1 to 4 carbon atoms, chlorine or bromine, each z, independently, has a value of from 0 to 4 inclusive, n has a value of 0 or 1, and R.sub.1 is a divalent saturated or unsaturated aliphatic hydrocarbon radical, O, CO, SO.sub.2, S or a direct bond, with the proviso that when R.sub.1 is SO.sub.2 then repeating unit (II) is not the same as repeating unit (I), and 95 to 5 weight percent of a styrene copolymer or terpolymer and/or vinyl chloride containing polymers.

    Abstract translation: 包含5至95重量%的芳族聚异构体的可成型和相容的共混物,其包含约20重量%至100重量%的具有式(I)的重复单元(I)和0重量%至约80重量% 具有式(II)的重复单元(II),其中重复单元(I)和重复单元(II)通过具有式-CH 2 - (III)的键合单元(III)连接,其中Y是 选自1至4个碳原子的烷基,氯或溴,每个z独立地具有0至4的值,包括0和4,n具有0或1的值,并且R 1是二价饱和或不饱和脂族烃基 ,O,CO,SO 2,S或直接键,条件是当R 1为SO 2时,重复单元(II)与重复单元(I)不同,并且95至5重量%的苯乙烯共聚物或三元共聚物 和/或含氯乙烯的聚合物。

    Flame retardant poly(aryl ketone)
    54.
    发明授权
    Flame retardant poly(aryl ketone) 失效
    阻燃聚(芳基酮)

    公开(公告)号:US4440890A

    公开(公告)日:1984-04-03

    申请号:US506392

    申请日:1983-06-21

    Inventor: Lloyd M. Robeson

    CPC classification number: C08K5/42

    Abstract: Described herein is a flame retardant molding composition comprising a particular poly(aryl ketone) and a flame retardant additive which is a metal salt of an aromatic sulfonic acid.

    Abstract translation: 本文描述的是包含特定聚(芳基酮)和作为芳族磺酸的金属盐的阻燃添加剂的阻燃剂模塑组合物。

    Reactive melt extrusion grafting of thermoplastic polyvinyl
alcohol/polyolefin blends
    59.
    发明授权
    Reactive melt extrusion grafting of thermoplastic polyvinyl alcohol/polyolefin blends 失效
    热塑性聚乙烯醇/聚烯烃共混物的反应熔融挤出接枝

    公开(公告)号:US5369168A

    公开(公告)日:1994-11-29

    申请号:US923756

    申请日:1992-08-03

    CPC classification number: C08L29/04 C08G81/021 C08L51/04 C08L51/06

    Abstract: A method for preparing a compatible blend of polyolefin and thermoplastic polyvinyl alcohol comprising:(a) melting polyolefin in the initial elements of a melt extruder,(b) adding and melt blending an unsaturated carboxylic acid or anhydride with the melted polyolefin downstream in the extruder,(c) adding peroxide to the melt blend and grafting the unsaturated carboxylic acid or anhydride onto the polyolefin, and(d) melt blending thermoplastic PVOH into the grafted polyolefin/unsaturated carboxylic acid or anhydride melt mixture.

    Abstract translation: 一种制备聚烯烃和热塑性聚乙烯醇的相容共混物的方法,包括:(a)在熔融挤出机的初始元素中熔化聚烯烃,(b)将不饱和羧酸或酸酐与挤出机中的熔融聚烯烃下游加入和熔融共混 ,(c)向熔融共混物中加入过氧化物并将不饱和羧酸或酸酐接枝到聚烯烃上,和(d)将热塑性PVOH熔融共混到接枝聚烯烃/不饱和羧酸或酐酐熔体混合物中。

    Extrudable polyvinyl alcohol compositions containing polyester-polyether
block copolymers
    60.
    发明授权
    Extrudable polyvinyl alcohol compositions containing polyester-polyether block copolymers 失效
    含聚酯 - 聚醚嵌段共聚物的可挤压聚乙烯醇组合物

    公开(公告)号:US5349000A

    公开(公告)日:1994-09-20

    申请号:US23031

    申请日:1993-02-25

    CPC classification number: C08L29/04 C08L67/025

    Abstract: In a melt extrudable polyvinyl alcohol composition consisting essentially of polyvinyl alcohol and plasticizer, which has been made melt extrudable by adding sufficient energy to the polyvinyl alcohol to both melt and substantially eliminate the crystallinity in the melt while simultaneously removing energy from the melt at a rate sufficient to avoid decomposition of the polyvinyl alcohol, the improvement which comprises 5 to 25 wt % poly(butylene terephthalate)-polytetrahydrofuran block copolymer for improved impact resistance.

    Abstract translation: 在基本上由聚乙烯醇和增塑剂组成的可熔融挤出的聚乙烯醇组合物中,其通过向聚乙烯醇中加入足够的能量使其熔融挤出,以熔融并基本上消除熔体中的结晶度,同时以一定速率从熔体中除去能量 足以避免聚乙烯醇分解,其改进包括5至25重量%的聚(对苯二甲酸丁二醇酯) - 聚四氢呋喃嵌段共聚物以改善耐冲击性。

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