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20 条记录 (耗时 0.026 秒)

    Semipermeable membranes of copolyamides
    1.
    发明授权
    Semipermeable membranes of copolyamides 失效
    共聚酰胺的半透膜

    公开(公告)号：US4217227A

    公开(公告)日：1980-08-12

    申请号：US920271

    申请日：1978-06-29

    申请人： Klaus Elfert ,  Gerhard D. Wolf ,  Francis Bentz ,  Hans E. Kunzel

    发明人： Klaus Elfert ,  Gerhard D. Wolf ,  Francis Bentz ,  Hans E. Kunzel

    IPC分类号： B01D71/56 ,  C08G69/38 ,  C08G69/46 ,  B01D31/00

    CPC分类号： C08G69/46 ,  B01D71/56 ,  C08G69/38

    摘要： The invention relates to semipermeable membranes with a water absorption capacity of from 4.5 to 10% by weight preferably from 4.5 to 8% by weight as measured on approximately 40.mu. thick symmetrical films at room temperature and 65% relative air humidity, with a throughflow of at least 80 1/m.sup.2 d for a desalination level of at least 85% and consisting of a fully aromatic copolyamide with a relative viscosity of .gtoreq.1,4, as measured on a 0.5% N-methyl pyrrolidone solution at a temperature of 20.degree. C.

    摘要翻译： 本发明涉及在室温和65％相对空气湿度下在约40μm厚的对称膜上测量的吸水能力为4.5至10重量％，优选4.5至8重量％的半透膜，其中通孔为 对于至少85％的脱盐水平，至少80l / m 2d，并且由在0.5％N-甲基吡咯烷酮溶液中在20℃温度下测量的相对粘度> = = 1,4的全芳族共聚酰胺组成 DEG C.

    Semipermeable membranes of heterocyclic copolyamides
    2.
    发明授权
    Semipermeable membranes of heterocyclic copolyamides 失效
    杂环共聚酰胺的半透膜

    公开(公告)号：US4221903A

    公开(公告)日：1980-09-09

    申请号：US927609

    申请日：1978-07-24

    申请人： Klaus Elfert ,  Gerhard D. Wolf ,  Francis Bentz ,  Hans E. Kunzel

    发明人： Klaus Elfert ,  Gerhard D. Wolf ,  Francis Bentz ,  Hans E. Kunzel

    IPC分类号： C08G69/00 ,  B01D71/56 ,  C08G69/32

    CPC分类号： B01D71/56 ,  C08G69/32

    摘要： The invention relates to semipermeable membranes with a water absorption capacity of from 4.5 to 11% by weight, preferably from 4.5 to 8% by weight, as measured on approximately 40.mu. thick symmetrical films at room temperature and at 65% relative air humidity, a throughflow of 130 to 200 l/m.sup.2 d for a desalination level of 94.6 to 99.5% and consisting of an aromatic heterocycle-containing copolyamide with a relative viscosity of .gtoreq.1.4, as measured on a 0.5% N-methyl pyrrolidone solution at a temperature of 20.degree. C.

    摘要翻译： 本发明涉及在室温和65％相对空气湿度下在约40μm厚的对称膜上测量的吸水能力为4.5至11重量％，优选4.5至8重量％的半透膜， 通过流量为130至200升/平方米，脱盐水平为94.6至99.5％，并且由相对粘度>η= 1.4的含芳族杂环的共聚酰胺组成，在0.5％N-甲基吡咯烷酮溶液中在温度 20℃

    Process of using a semi-permeable membrane of acrylonitrile copolymers
    3.
    发明授权
    Process of using a semi-permeable membrane of acrylonitrile copolymers 失效
    使用丙烯腈共聚物半透膜的方法

    公开(公告)号：US4252652A

    公开(公告)日：1981-02-24

    申请号：US74822

    申请日：1979-09-12

    申请人： Klaus Elfert ,  Hans J. Rosenkranz ,  Gerhard D. Wolf ,  Francis Bentz

    发明人： Klaus Elfert ,  Hans J. Rosenkranz ,  Gerhard D. Wolf ,  Francis Bentz

    IPC分类号： C08F220/00 ,  B01D71/40 ,  B01D71/42 ,  B01D71/44 ,  C08F220/42 ,  C08F220/44 ,  B01D13/00

    CPC分类号： C08F220/44 ,  B01D71/42

    摘要： A disulphimide group-containing acrylonitrile copolymer semi-permeable membrane which comprises:(A) from 99 to 50% by weight of acrylonitrile units;(B) from 1 to 50% by weight of units of an acrylonitrile-copolymerizable ethylenically unsaturated monomer containing one or two disulphimide groups; and(C) from 0 to 30% by weight of units of one or more other acrylonitrile-copolymerizable olefinically unsaturated monomer, the sum of the percentages amounts to 100.The semi-permeable membranes may be used in reverse osmosis and ultrafiltration.

    摘要翻译： 一种含二酰亚胺基的丙烯腈共聚物半透膜，其包含：（A）99至50重量％的丙烯腈单元; （B）1至50重量％的含有一个或两个二硫酰亚胺基团的丙烯腈可共聚的烯键式不饱和单体单元; 和（C）0至30重量％的一种或多种其它丙烯腈可共聚的烯属不饱和单体的单元，百分比总和为100.半透膜可用于反渗透和超滤。

    Stabilization of crosslinkable polymers
    8.
    发明授权
    Stabilization of crosslinkable polymers 失效
    可交联聚合物的稳定化

    公开(公告)号：US4145500A

    公开(公告)日：1979-03-20

    申请号：US819162

    申请日：1977-07-26

    申请人： Theo Neukam ,  Frank Druschke ,  Francis Bentz ,  Gunther Nischk

    发明人： Theo Neukam ,  Frank Druschke ,  Francis Bentz ,  Gunther Nischk

    IPC分类号： C08F2/00 ,  C08F2/10 ,  C08F2/44 ,  C08F220/00 ,  C08F220/42 ,  C08F220/44 ,  C08F220/48

    CPC分类号： C08F220/44

    摘要： The invention relates to a process for the production of a stabilized crosslinkable copolymer of acrylonitrile which comprises copolymerizing at least 65% by weight of acrylonitrile with from 0.1 to 3% by weight of an N-methylol acyl ester of an ethylenically unsaturated carboxylic acid amide, optionally from 0.5 to 5% by weight of an N-methylol alkyl ether of an ethylenically unsaturated carboxylic acid amide and, optionally, at least one other copolymerizable comonomer in an aqueous medium in the presence of a redox catalyst and in the presence of at least one water-soluble compound containing a carboxylic acid amide group.

    摘要翻译： 本发明涉及一种制备丙烯腈稳定的可交联共聚物的方法，该方法包括将至少65重量％的丙烯腈与0.1-3重量％的烯键式不饱和羧酸酰胺的N-羟甲基酰基酯， 任选的0.5至5重量％的烯键式不饱和羧酸酰胺的N-羟甲基烷基醚和任选的至少一种其它共聚单体在水性介质中，在氧化还原催化剂存在下和至少存在 一种含有羧酸酰胺基团的水溶性化合物。