Isocyanate polyoxyalkylenes
    11.
    发明授权
    Isocyanate polyoxyalkylenes 失效
    异氰酸酯聚氧化烯

    公开(公告)号:US4313764A

    公开(公告)日:1982-02-02

    申请号:US174047

    申请日:1980-07-31

    CPC classification number: C07C265/00 C08G65/3255 C08K5/29

    Abstract: The isocyanate polyoxyalkylenes having the formula:OCN--(AO).sub.x --(BO).sub.y --(CO).sub.z --DE I.wherein E is --NCO or an amino group; A, C and D represent lower alkylene of 2 to 4 carbon atoms; B is alkylene of 2 to 8 carbon atoms; y and z are each integers having a value of 0 to 50 and x is an integer having a value of from 2 to 50, and intermixtures of said polyoxyalkylenes.The above compounds display a wide variety of uses, namely for the control of fungi and bacteria or for the prevention of such infestation. They are also useful dielectric constant depressors for polymeric substances, e.g. polyvinylchloride, polyvinylidene halides, etc., extenders for solids in latices and anti-static agents.

    Abstract translation: 具有下式的异氰酸酯聚氧化烯:OCN-(AO)x-(BO)y-(CO)z-DE I,其中E是-NCO或氨基; A,C和D表示2至4个碳原子的低级亚烷基; B是2至8个碳原子的亚烷基; y和z分别为0〜50的整数,x为2〜50的整数,所述聚氧化烯的混合。 上述化合物显示出各种用途,即用于控制真菌和细菌,或用于预防这种侵染。 它们也是用于聚合物质的有用的介电常数抑制剂,例如。 聚氯乙烯,聚偏二氯乙烯等,用于胶乳中的固体的增量剂和抗静电剂。

    Long chain-perfluoroalkylene ether bibenzoxazole polymers
    14.
    发明授权
    Long chain-perfluoroalkylene ether bibenzoxazole polymers 失效
    长链全氟亚烷基醚联苯唑聚合物

    公开(公告)号:US3994861A

    公开(公告)日:1976-11-30

    申请号:US610474

    申请日:1975-09-04

    Inventor: Robert C. Evers

    CPC classification number: C08G65/3255 C08G65/3312 C08G65/337 C08G73/22

    Abstract: Long chain-perfluoroalkylene ether bibenzoxazole polymers are synthesized by the polycondensation of long chain-perfluoroalkylene ether bis(o-aminophenol) compounds and perfluoroalkylene ether diimidate esters. The elastomeric polymers have a combination of high thermooxidative stability and superior low temperature visco-elastic properties that render them particularly useful for wide temperature range applications, such as seals, sealants and the like.

    Abstract translation: 长链全氟亚烷基醚联苯唑聚合物通过长链全氟亚烷基醚双(邻氨基苯酚)化合物和全氟亚烷基醚二亚胺酯的缩聚合成。 弹性体聚合物具有高的热氧化稳定性和优异的低温粘弹性性质的组合,使得它们对于宽温度范围应用(例如密封件,密封剂等)特别有用。

    METHOD FOR PREPARING MULTI-ARM POLY(ETHYLENE GLYCOL) CHLORIDES
    18.
    发明申请
    METHOD FOR PREPARING MULTI-ARM POLY(ETHYLENE GLYCOL) CHLORIDES 有权
    制备多臂聚(乙二醇)氯化物的方法

    公开(公告)号:US20110077432A1

    公开(公告)日:2011-03-31

    申请号:US12957477

    申请日:2010-12-01

    CPC classification number: C08G65/3255 C08G65/3344

    Abstract: A method for preparing multi-arm poly(ethylene glycol) (PEG) chlorides from multi-arm PEG polyols is described. The method comprises a process, wherein the multi-arm PEG polyol is reacted with thionyl chloride to form the multi-arm PEG chloride.

    Abstract translation: 描述了从多臂PEG多元醇制备多臂聚(乙二醇)(PEG)氯化物的方法。 该方法包括一种方法,其中多臂PEG多元醇与亚硫酰氯反应形成多臂PEG氯化物。

    SYNTHESIS OF DIFUNCTIONAL OXYETHYLENE-BASED COMPOUNDS
    20.
    发明申请
    SYNTHESIS OF DIFUNCTIONAL OXYETHYLENE-BASED COMPOUNDS 有权
    基于二甲基乙烯基化合物的合成

    公开(公告)号:US20090187037A1

    公开(公告)日:2009-07-23

    申请号:US12358296

    申请日:2009-01-23

    Abstract: A method of reacting a toluenesulfonyl-terminated polyoxyethylene compound having the formula CH3—C6H4—SO2—(O—CH2—CH2)n—O—R1 with an ammonium salt having the formula NR24X to form a compound having the formula X—CH2—CH2—(O—CH2—CH2)n-1—R3. The value n is a positive integer. X is a halogen, cyanide, cyanate, thiocyanate, or azide. R1 is a terminating group. Each R2 is hydrogen or an alkyl group. —R3 is —O—R1 or —X.

    Abstract translation: 使具有式CH 3 -C 6 H 4 -SO 2 - (O-CH 2 -CH 2)n O-R 1的甲苯磺酰基封端的聚氧乙烯化合物与具有式NR24X的铵盐反应以形成具有式X-CH 2 -CH 2 - (O-CH 2 -CH 2)n-1-R 3。 值n为正整数。 X是卤素,氰化物,氰酸酯,硫氰酸酯或叠氮化物。 R1是终止组。 每个R 2是氢或烷基。 -R 3是-O-R 1或-X。

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