Chlorination of polyolefins in the presence of complex formers
    1.
    发明授权
    Chlorination of polyolefins in the presence of complex formers 失效
    在复合成型剂存在下氯化聚烯烃

    公开(公告)号:US4165431A

    公开(公告)日:1979-08-21

    申请号:US881675

    申请日:1978-02-27

    IPC分类号: C08F8/00 C08F8/20 C08F8/22

    CPC分类号: C08F8/22

    摘要: A chlorinated colorless polyolefin, preferably a chlorinated colorless isotactic polypropylene, soluble in carbon tetrachloride and having a chlorine content of from 60% to 70% by weight and an average degree of polymerization of from 2000 to 6000, produced by chlorinating polyolefins having a degree of polymerization of from 2000 to 20,000 in suspension or solution or in suspension and solution at 40 to 60.degree. C. in the presence of a halogen transfer agent, a chlorination catalyst and from 0.2 to 0.5% by weight, based on polyolefin, of at least one compound corresponding to the general Formula (I):h.sub.2 n--r--nh>.sub.n H (I)in which R represents the ethylene, propylene or butylene group and n=1-6.

    摘要翻译: 氯化无色聚烯烃,优选氯化无色全同立构聚丙烯,其可溶于四氯化碳,氯含量为60〜70重量%,平均聚合度为2000〜6000,通过氯化具有一定程度的聚烯烃 在卤素转移剂,氯化催化剂和基于聚烯烃的0.2至0.5重量%的存在下,在悬浮液或溶液中或悬浮液和溶液中在40至60℃下聚合2000至20,000,至少 对应于通式(I)的一种化合物:

    Method for the continuous recovery of organic polymers from solutions or
emulsions thereof
    4.
    发明授权
    Method for the continuous recovery of organic polymers from solutions or emulsions thereof 失效
    从溶液或其乳液中连续回收有机聚合物的方法

    公开(公告)号:US4914186A

    公开(公告)日:1990-04-03

    申请号:US180411

    申请日:1988-04-12

    CPC分类号: C08C1/14 C08C2/06

    摘要: In order to achieve good results during the continuous recovery of organic polymers from solutions or emulsions thereof, even if there are irregularities due to variations in operation, and to ensure a minimum residual content of solvent in the polymer, a two-component nozzle is used, from whose inner duct the solution or emulsion is injected at an angle .beta. to the nozzle axis and from whose outer duct a vapor jet issues at an angle .alpha. which is between 1.degree. and 90.degree. greater than the angle .beta., the vapor jet breaking the jet of solution or emulsion into many small particles and wherein injection takes place in a vessel which is filled with a liquid which is immiscible with the solution or emulsion, in particular water.

    摘要翻译: 为了在从其溶液或乳液连续回收有机聚合物期间获得良好的结果,即使由于操作变化而存在不规则性,并且确保聚合物中溶剂的残留含量最小,则使用双组分喷嘴 ,从其内部导管以与喷嘴轴线成角度β喷射溶液或乳液,并且从其外部管道喷射蒸汽射流以比角度β大1°至90°的角度α发生,蒸气喷射断裂 将溶液或乳液喷射成许多小颗粒,并且其中注射发生在填充有与溶液或乳液,特别是水不混溶的液体的容器中。

    Process for the preparation of chlorinated polymers
    5.
    发明授权
    Process for the preparation of chlorinated polymers 失效
    氯化聚合物的制备方法

    公开(公告)号:US4206093A

    公开(公告)日:1980-06-03

    申请号:US791546

    申请日:1977-04-27

    CPC分类号: C08F6/12 C08C19/14 C08F8/22

    摘要: A process for the preparation of chlorinated aliphatic polymers wherein chlorine-free polymers are chlorinated by using gaseous chlorine in chlorinated hydrocarbons as solvents and the chlorinated aliphatic polymers are recovered from the chlorinating solution by steam distillation in which process from 15 to 50% by weight of a lacquer resin is added to the chlorinating solution before steam distillation. The chlorinated polymers contain less residual solvent.

    摘要翻译: 制备氯化脂族聚合物的方法,其中通过在氯化烃作为溶剂中使用气态氯将无氯聚合物氯化,氯化脂族聚合物通过蒸汽蒸馏从氯化溶液中回收,其中将15至50重量% 在蒸汽蒸馏之前,将氯树脂加入到氯化溶液中。 氯化聚合物含有较少的残留溶剂。