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    Method for producing porous structures from synthetic polymers
    3.
    发明授权
    Method for producing porous structures from synthetic polymers 有权
    从合成聚合物制备多孔结构的方法

    公开(公告)号：US08999211B2

    公开(公告)日：2015-04-07

    申请号：US12867040

    申请日：2009-02-11

    申请人： Stefan Schwiegk ,  Axel Wilms ,  Ronald Frans Maria Lange ,  Michael Siemer ,  Giovanni D'Andola ,  Volker Rauschenberger ,  Frank Hermanutz ,  Frank Gaehr ,  Julien Courtois ,  Dirk Gerhard

    发明人： Stefan Schwiegk ,  Axel Wilms ,  Ronald Frans Maria Lange ,  Michael Siemer ,  Giovanni D'Andola ,  Volker Rauschenberger ,  Frank Hermanutz ,  Frank Gaehr ,  Julien Courtois ,  Dirk Gerhard

    IPC分类号： D01D5/06 ,  D01D5/247 ,  C08J9/28 ,  B29C67/20

    CPC分类号： C08J9/28 ,  B29C67/202 ,  C08J2201/0542 ,  C08J2377/00 ,  Y10T428/249976

    摘要： A process for producing porous structures from polyamide by dissolving the polyamide in an ionic liquid and precipitating or coagulating the dissolved polyamide by contacting the solution with a liquid precipitant medium. Fibers are produced from the dissolved polyamide in a wet-spinning process by precipitation in protic solvents, in particular water, a C1-4-alkanol or mixtures thereof, and subsequent freeze-drying. Foils, films or coatings are produced by blade coating the dissolved polyamide onto a substrate surface, optionally spraying with protic solvent, in particular water, a C1-4-alcohol or mixtures thereof, dipping into a precipitation or coagulation bath, freeze-drying of the resulting foil, of the film or of the coated substrate. Molded parts are prepared by extracting the dissolved polyamide with protic solvents, preferably water, a C1-4-alcohol or mixtures thereof, wherein the dissolved polymer is transformed to a solid or wax-like state by cooling and extracted after subsequent molding.

    摘要翻译： 通过将聚酰胺溶解在离子液体中并通过使溶液与液体沉淀剂介质接触使溶解的聚酰胺沉淀或凝结来从聚酰胺制造多孔结构的方法。 通过在质子溶剂，特别是水，C 1-4链烷醇或其混合物中沉淀，然后冷冻干燥，在湿纺丝方法中，由溶解的聚酰胺生产纤维。 通过将溶解的聚酰胺刮涂到基材表面上，任选地喷涂质子溶剂，特别是水，C1-4醇或其混合物，将其浸入沉淀或凝固浴中，冷冻干燥 所得到的箔，膜或涂覆的基底。 通过用质子溶剂，优选水，C 1-4醇或其混合物萃取溶解的聚酰胺来制备模制部件，其中通过冷却将溶解的聚合物转化为固体或蜡状状态，并在随后的模塑之后提取。

    Inherently light- and heat-stabilized polyamides with improved wet fastness
    8.
    发明授权
    Inherently light- and heat-stabilized polyamides with improved wet fastness 失效
    具有改善湿牢度的固有光和热稳定性聚酰胺

    公开(公告)号：US06812323B1

    公开(公告)日：2004-11-02

    申请号：US09646183

    申请日：2000-09-14

    申请人： Ulrike Breiner ,  Manfred Julius ,  Rainer Neuberg ,  Robert Weiss ,  Axel Wilms ,  Harry Y. Hu

    发明人： Ulrike Breiner ,  Manfred Julius ,  Rainer Neuberg ,  Robert Weiss ,  Axel Wilms ,  Harry Y. Hu

    IPC分类号： C08G6928

    CPC分类号： C08G69/04 ,  C08G69/16 ,  C08G69/28 ,  C08G69/48

    摘要： A process for preparing polyamides comprises polymerizing starting monomers or starting oligomers in the presence of at least one compound of the formula (I) where R is a functional group R8 which bears 1-4 identical or different amide-forming groups R7, R1 is H, C1-C20-alkyl, cycloalkyl, benzyl or OR6, where R6 is H, C1-C20-alkyl, cycloalkyl or benzyl, R2, R3, R4 and R5 are independently C1-C10-alkyl, n is a natural number greater than 1, and the piperidine derivatives attached to R are identical or different with regard to the substituents, meaning R1, R2, R3, R4 and R5. The polyamides are useful for preparing filaments, fibers, films, sheetlike structures and moldings.

    摘要翻译： 制备聚酰胺的方法包括在至少一种式（I）化合物存在下使起始单体或起始低聚物聚合，其中R是具有1-4个相同或不同的酰胺形成基团R 7的官能团R 8 R 1是H，C 1 -C 20烷基，环烷基，苄基或OR 6，其中R 6是H，C 1 -C 20 - 烷基，环烷基或苄基，R 2，R 3 R 4和R 5独立地为C 1 -C 10 - 烷基，n为大于1的天然数，并且与R相连的哌啶衍生物相对于取代基相同或不同，意指R 1， R 2，R 3，R 4和R 5。聚酰胺可用于制备长丝，纤维，薄膜，片状结构和模制品。