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    Production of bonded nonwovens by the wet method
    1.
    发明授权
    Production of bonded nonwovens by the wet method 失效
    通过湿法生产粘结的非织造布

    公开(公告)号：US3657031A

    公开(公告)日：1972-04-18

    申请号：US3657031D

    申请日：1969-06-27

    Applicant: BASF AG

    Inventor： REINHARD HANS ,  WELZEL GERHARD ,  FRANK HANS-ULRICH ,  STEPHAN RUDOLF

    IPC: A61L15/20 ,  D21H17/34 ,  D21H17/43 ,  B29J5/00

    CPC classification number: D21H17/43 ,  A01N33/12 ,  A61L15/20 ,  A61L15/46 ,  D21H17/34 ,  Y10T442/603 ,  Y10T442/607

    Abstract: Textile nonwovens can be prepared with particular advantage by treatment of textile fibers suspended in an aqueous medium with dissolved quaternary organic ammonium salts and with watersoluble salts of polymers having carboxyl groups of vinylpyrrolidone polymers, precipitation of binder polymers dispersed in water onto the treated suspended fibers, separation of the aqueous medium from the fibers and drying the bonded fibers.

    Abstract translation: 纺织无纺布可以通过处理悬浮在具有溶解的季铵有机铵盐的水性介质中的纺织纤维和具有乙烯基吡咯烷酮聚合物羧基的聚合物的水溶性盐，将分散在水中的粘合剂聚合物沉淀在经处理的悬浮液 纤维，将水性介质与纤维分离并干燥粘结纤维。

    Production of bonded nonwovens by the wet method
    2.
    发明授权
    Production of bonded nonwovens by the wet method 失效
    通过湿法生产粘结的非织造布

    公开(公告)号：US3635776A

    公开(公告)日：1972-01-18

    申请号：US3635776D

    申请日：1969-06-27

    Applicant: BASF AG

    Inventor： STEPHAN RUDOLF ,  WELZEL GERHARD ,  REINHARD HANS ,  FRANK HANS-ULRICH

    IPC: D21H17/50 ,  D21H23/00 ,  C09J5/04

    CPC classification number: D21H23/00 ,  D21H17/50

    Abstract: Bonded nonwovens can be produced with particular advantage by the wet method by treating the textile fibers prior to the addition of the binder polymers with water-soluble cationic polycondensation products which have been prepared from carbamides, formaldehyde, dicyanodiamide and salts of ammonia or of amines.

    Abstract translation: 粘合的无纺布可以通过湿法通过处理纺织纤维而特别有利地通过在使用由氨基或胺或胺的盐制备的水溶性阳离子缩聚产物加入粘合剂聚合物之前进行处理。

    THERMOPLASTIC MOLDING MATERIAL
    3.
    发明专利
    THERMOPLASTIC MOLDING MATERIAL 未知

    公开(公告)号：CA1191986A

    公开(公告)日：1985-08-13

    申请号：CA417232

    申请日：1982-12-08

    Applicant: BASF AG

    Inventor： HAMBRECHT JUERGEN ,  SCHMITT BURGHARD ,  SWOBODA JOHANN ,  WASSMUTH GEORG ,  BERNHARD CLAUS ,  STEPHAN RUDOLF

    IPC: C08L25/08 ,  C08L25/12 ,  C08L51/00 ,  C08L51/04 ,  C08L25/02 ,  C08L51/06

    Abstract: The invention relates to a thermoplastic molding material of an elastomeric polymer A, a shell B grafted to the polymer A, and a copolymer C as rigid matrix. The amount of polymer A is 1 to 25 percent by weight based on the weight of A + B + C. It has a glass transition temperature, Tg, of less than 0.degree.C and an average particle size of 200 to 500 nanometers ( d50 value of the integral mass distribution) and is composed of: 50 to 99.9 percent by weight of at least one alkylacrylate with 1 to 8 carbon atoms in the alkyl radical and 0.1 to 5 percent by weight of a polyfunctional monomer which has a crosslinking action. Grafting shell B represents 5 to 40 percent by weight based on A + 9 + C and is composed of at least one of the monomers of the group of b1 ) vinylaromatic monomers, and b2 ) the ethylenically unsaturated monomers. Grafting shell B is prepared in two stages with 30 to 10 percent by weight of the monomers b1 being used in the first stage, and 30 to 70 percent by weight of a mixture of monomers b1 and b2 in a weight ratio of 90:10 to 60:40 being used in the second stage. Copolymer C is added in an amount of 35 to 94 percent by weight based on A + B + C and consists of a vinylaromatic monomer and an ethylenically unsaturated monomer. The molding material may contain commonly used additives in effective amounts and is used for the prepara--tion of molded parts.

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