Prevention of plasticizer migration from PVC products
    1.
    发明授权
    Prevention of plasticizer migration from PVC products 失效
    防止塑料从PVC产品迁移

    公开(公告)号:US4806393A

    公开(公告)日:1989-02-21

    申请号:US29582

    申请日:1987-03-25

    申请人: Gideon Levin

    发明人: Gideon Levin

    IPC分类号: C08F8/34

    摘要: To plasticized polyvinyl chloride (PVC) there is applied a layer of PVC modified by the introduction of functional groups which can be crosslinked, preferably under the influence of heat. Such crosslinking provides a thin coating which prevents leakage of plasticizer and additives from the plasticized PVC substrate when it is contacted with solvents. Preferred modification of the PVC is by means of thiocarbamate moieties replacing some of the chlorine in the PVC from which the surface layer is produced.

    摘要翻译: 对于增塑聚氯乙烯(PVC),通过引入可以交联的官能团改性的PVC层,优选在受热的影响下。 这种交联提供了薄的涂层,其防止增塑剂和添加剂在与溶剂接触时从塑化的PVC基材泄漏。 优选的PVC的改性是通过硫代氨基甲酸酯部分代替生产表面层的PVC中的一些氯。

    Grafting of epoxy resin on amide
    2.
    发明授权
    Grafting of epoxy resin on amide 失效
    环氧树脂在酰胺上的接枝

    公开(公告)号:US4654391A

    公开(公告)日:1987-03-31

    申请号:US801815

    申请日:1985-11-26

    CPC分类号: C08J5/18 C08F8/34 C08J2351/06

    摘要: There are provided polymers containing chlorine wherein part of the chlorine atoms are substituted by thio-amide groups and where a further part of the chlorine atoms are substituted by epoxy moieties. Starting materials of choice are chlorinated polyalkylenes, polyvinyl chloride and polyvinylidene chloride. The polymers are produced by first producing a chlorine containing polymer wherein part of the chlorine is substituted by thio-amide groups, and further reacting such product with an epoxy resin so as to introduce epoxy groups.

    摘要翻译: 提供含有氯的聚合物,其中部分氯原子被硫代酰胺基团取代,另外部分氯原子被环氧基取代。 起始原料是氯化聚亚烷基,聚氯乙烯和聚偏二氯乙烯。 聚合物通过首先生产含氯聚合物来制备,其中部分氯被硫代酰胺基取代,并进一步使该产物与环氧树脂反应以引入环氧基。

    Nucleophilic substitution of chlorine containing polymers in aqueous
medium by amido-thiolate groups
    5.
    发明授权
    Nucleophilic substitution of chlorine containing polymers in aqueous medium by amido-thiolate groups 失效
    通过酰胺 - 硫醇基团在含水介质中亲核取代含氯聚合物

    公开(公告)号:US4735997A

    公开(公告)日:1988-04-05

    申请号:US795870

    申请日:1985-11-07

    IPC分类号: C08F8/34

    CPC分类号: C08F8/34

    摘要: There are provided polymers containing amido-thiolate groups. These are produced by a nuceophilic substitution of polymers containing chlorine, and the resulting polymers have a pronounced hydrophylic character. There is also provided a process for the production of these starting with polymers which contain chlorine in the polymeric backbone or in side chains.

    摘要翻译: 提供含有酰胺基硫醇盐基团的聚合物。 这些通过含氯聚合物的亲和性取代产生,所得聚合物具有显着的亲水性。 还提供了一种从聚合物主链或侧链中含有氯的聚合物开始制备的方法。

    Modified polyvinylchloride
    6.
    发明授权
    Modified polyvinylchloride 失效
    改性聚氯乙烯

    公开(公告)号:US4298714A

    公开(公告)日:1981-11-03

    申请号:US217144

    申请日:1980-12-16

    IPC分类号: C08F8/34 C08F114/06

    CPC分类号: C08F8/34

    摘要: The present invention relates to modified polyvinylchloride, wherein part of the chlorine atoms are replaced by groups of the formula --S--CH.sub.2 --CH.sub.2 --R--(CH.sub.2 --CH.sub.2 --R).sub.n --Alk, wherein R is selected from oxygen, sulfur and --NH--, where R may also designate a bond, where Alk designates an alkyl group of up to 14 carbon atoms, and where n is zero or an integer of from 1 to 100, and to a process for the production of such modified polyvinylchloride polymers which comprises reacting an aqueous emulsion or suspension of polyvinylchloride in the presence of a solvent adapted to cause swelling of the PVC particles with a compound of the formula Alk--(CH.sub.2 --CH.sub.2 --R).sub.n --R--CH.sub.2 --CH.sub.2 --SH, wherein Alk, R and n are as defined above.

    摘要翻译: 本发明涉及改性聚氯乙烯,其中部分氯原子被式-S-CH2-CH2-R-(CH2-CH2-R)n-Alk的基团取代,其中R选自氧,硫和 -NH-,其中R可以也表示键,其中Alk表示最多14个碳原子的烷基,其中n为0或1〜100的整数,以及制备这种改性聚氯乙烯的方法 聚合物,其包括在溶剂存在下使聚氯乙烯的水性乳液或悬浮液反应,所述溶剂适于引起PVC颗粒与式Alk-(CH2-CH2-R)nR-CH2-CH2-SH的化合物的溶胀,其中Alk ,R和n如上所定义。