Perfluorocyclobutane ring-containing polymers with crosslinking
    53.
    发明授权
    Perfluorocyclobutane ring-containing polymers with crosslinking 失效
    含全氟环丁烷环的聚合物与交联

    公开(公告)号:US5159036A

    公开(公告)日:1992-10-27

    申请号:US673884

    申请日:1991-03-22

    申请人: David A. Babb

    发明人: David A. Babb

    摘要: A crosslinked polymer having perfluorocyclobutane rings is prepared in a process comprising the steps of: (a) contacting monomers having two dimerizable perfluorovinyl groups; (b) exposing the monomers to sufficient heat and for a sufficient time that a (linear) polymer containing perfluorocyclobutane rings is formed; and (c) exposing the polymer to sufficient crosslinking initiating means and for a sufficient time such that crosslinking occurs. Crosslinked polymers, so prepared are novel and have tensile strength and other physical properties enhanced over the properties of the corresponding linear polymer.

    摘要翻译: 制备具有全氟环丁烷环的交联聚合物的方法包括以下步骤:(a)使具有两个可二聚的全氟乙烯基的单体接触; (b)将单体暴露于足够的热量并持续足够的时间,形成含有全氟环丁烷环的(直链)聚合物; 和(c)将聚合物暴露于足够的交联引发装置并持续足够的时间使得发生交联。 如此制备的交联聚合物是新颖的,并且相对于相应的线性聚合物的性能具有增强的拉伸强度和其它物理性能。

    Perfluorocyclobutane ring-containing polymers with crosslinking
    54.
    发明授权
    Perfluorocyclobutane ring-containing polymers with crosslinking 失效
    含全氟环丁烷环的聚合物与交联

    公开(公告)号:US5037918A

    公开(公告)日:1991-08-06

    申请号:US451404

    申请日:1989-12-15

    申请人: David A. Babb

    发明人: David A. Babb

    摘要: A crosslinked polymer having perfluorocyclobutane rings is prepared in a process comprising the steps of: (a) contacting monomers having two dimerizable perfluorovinyl groups; (b) exposing the monomers to sufficient heat and for a sufficient time that a (linear) polymer containing perfluorocyclobutane rings is formed; and (c) exposing the polymer to sufficient crosslinking initiating means and for a sufficient time such that crosslinking occurs. Crosslinked polymers, so prepared are novel and have tensile strength and other physical proeprties enhanced over the properties of the corresponding linear polymer.

    摘要翻译: 制备具有全氟环丁烷环的交联聚合物的方法包括以下步骤:(a)使具有两个可二聚的全氟乙烯基的单体接触; (b)将单体暴露于足够的热量并持续足够的时间,形成含有全氟环丁烷环的(直链)聚合物; 和(c)将聚合物暴露于足够的交联引发装置并持续足够的时间使得发生交联。 如此制备的交联聚合物是新颖的,并且具有比相应的线性聚合物的性能增强的拉伸强度和其它物理性能。

    Process for making hybrid polyester-polyether polyols
    58.
    发明授权
    Process for making hybrid polyester-polyether polyols 有权
    制备混合聚酯 - 聚醚多元醇的方法

    公开(公告)号:US09139506B2

    公开(公告)日:2015-09-22

    申请号:US14365961

    申请日:2012-12-10

    摘要: Hybrid polyester-polyether polyols are prepared by polymerizing an alkylene oxide in the presence of a carboxylate initiator. The polymerization is catalyzed with a mixture of double metal cyanide catalyst complex and certain magnesium, group 3-group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal (MG3-15LA) compound makes for consistently rapid activation of the double metal cyanide catalyst complex, even in the presence of carboxylate initiator compounds. This leads to greater productivity and reduced manufacturing costs due to shorter cycle times and less waste of raw materials due to the failure of the catalyst to become activated. Once the catalyst is activated, it often polymerizes the alkylene oxide at a faster rate that the DMC catalyst by itself.

    摘要翻译: 混合聚酯 - 聚醚多元醇通过在羧酸酯引发剂的存在下聚合烯化氧来制备。 聚合反应用双金属氰化物催化剂络合物和某些镁,第3族第15族金属或镧系金属化合物的混合物催化。 即使在羧酸酯引发剂化合物的存在下,镁,第三族第15族金属或镧系金属(MG3-15LA)化合物的存在使得双金属氰化物催化剂络合物一直快速活化。 这导致更高的生产率和降低的制造成本,这是由于催化剂失效而导致的循环时间缩短和原材料的浪费减少。 一旦催化剂被活化,它通常以DMC催化剂本身更快的速率聚合烯化氧。

    METHOD FOR PRODUCING SHORT-CHAIN POLYFUNCTIONAL POLYETHER POLYOLS UTILIZING SUPERACID AND DOUBLE-METAL CYANIDE CATALYSIS
    59.
    发明申请
    METHOD FOR PRODUCING SHORT-CHAIN POLYFUNCTIONAL POLYETHER POLYOLS UTILIZING SUPERACID AND DOUBLE-METAL CYANIDE CATALYSIS 审中-公开
    生产使用超级和双金属氰化物催化剂的短链多官能聚醚多元醇的方法

    公开(公告)号:US20140018459A1

    公开(公告)日:2014-01-16

    申请号:US14003058

    申请日:2012-03-19

    IPC分类号: C08G65/26 C08G18/32

    摘要: A two stage alkoxlyation process for preparing a short-chain polyether polyol from a starter compound comprising from 3 to 9 hydroxyl groups and at least one alkylene oxide, wherein said starter compound has a hydroxy equivalent weight of from 22 to 90 Da. Said process comprises a first stage alkoxlyation using a superacid catalyst to prepare an oligomeric alkoxylated starter compound that is further alkoxylated to the short-chain polyether polyol of the invention in a second stage using a DMC catalyst. The process of the present invention may be performed continuously, in a batch, or semi-batch process.

    摘要翻译: 一种由起始化合物制备短链聚醚多元醇的二阶段烷氧化方法,所述起始化合物包含3至9个羟基和至少一种烯化氧,其中所述起始化合物的羟基当量为22至90Da。 所述方法包括使用超强酸催化剂的第一阶段烷氧化,以制备在第二阶段中使用DMC催化剂进一步使本发明的短链聚醚多元醇烷氧基化的低聚烷氧基化引发剂化合物。 本发明的方法可以连续地,分批或半间歇的方法进行。