Fiber-forming polyamides having an increased content of amino groups
    2.
    发明授权
    Fiber-forming polyamides having an increased content of amino groups 失效
    具有AMINO组增加内容的纤维形成聚酰胺

    公开(公告)号:US3644299A

    公开(公告)日:1972-02-22

    申请号:US3644299D

    申请日:1969-03-21

    Applicant: HOECHST AG

    CPC classification number: C08G69/02

    Abstract: POLYAMIDES HAVING AN ESPECIALLY HIGH DYE AFFINITY WITH RESPECT TO BASIC DYESTUFFS ARE OBTAINED BY ADDING CERTAIN AMOUNTS OF A POLYAMINE.

    H2N-1,4-CYCLOHEXYLENE-C(-R'')(-R")-1,4-CYCLOHEXYLENE-NH-

    (1,4-CYCLOHEXYLENE-C(-R'')(-R")-1,4-CYCLOHEXYLENE-NH)X-

    1,4-CYCLOHEXYLENE-C(-R'')(-R")-1,4-CYCLOHEXYLENE-NH2 (I) OR

    H2N-CH2-CYCLOHEXYLENE-CH2-NH-(CH2-CYCLOHEXYLENE-CH2-NH)X-

    CH2-CYCLOHEXYLENE-CH2-NH2 (II)

    OR A MIXTURE OF THESE POLYAMINES, IN WHICH FORMULAE X REPRESENTS ZERO OR A WHOLE NUMBER FROM 1 TO 30, PREFERABLY ZERO OR A WHOLE NUMBER FROM 1 TO 10, R2 REPRESENTS H, -CH3, -C2H5, R" REPRESENTS H8 -CH3, C2H5, AND THE BONDS OF THE RINGS IN FORMULA II PREFERABLY BEING META- AND PARA-BONDS, TO THE POLYAMIDE-FORMING STARTING MATERIAL OR SUBSEQUENTLY TO THE POLYAMIDE. FROM THE MODIFIED POLYAMIDES FIBERS ARE OBTAINED WHICH HAVE AN IMPROVED DYE AFFINITY WITH RESPECT TO BASIC DYESTUFFS.

    4.
    发明专利
    未知

    公开(公告)号:DK169727B1

    公开(公告)日:1995-01-23

    申请号:DK84085

    申请日:1985-02-22

    Applicant: HOECHST AG

    Abstract: Monofils and bristles which comprise at least 90% by weight of acrylonitrile units and have a linear density of more than 2.5 tex possess a relative solution viscosity of 1.7 to 6.0, a tear strength of at least 20 cN/tex and an initial modulus of more than 700 cN/tex. The manufacturing process is distinguished by a wet stretch of the spun filaments by at least 1:4, drying under tension and a subsequent hot stretch of at least 1:2, the overall stretch being at least 1:8, preferably 1:10 to 1:20. The monofils and bristles according to the invention are suitable in particular for producing filament-reinforced composite materials.

    5.
    发明专利
    未知

    公开(公告)号:NO156698C

    公开(公告)日:1987-11-04

    申请号:NO820916

    申请日:1982-03-19

    Applicant: HOECHST AG

    Abstract: The invention relates to filaments and fibers spun from at least 98% by weight of polyacrylonitrile and relative viscosities of between 2.5 and 6.0 which have tensile strengths of more than 50 cN/tex with an elongation at break of at most 15% and a shrinkage at the boil of less than 5% and to a process for their production which comprises at least 2 stretching stages with a minimum stretching ratio of 1:9 as well as a concluding setting stage in which the filaments are treated without shrinkage in dry heat at 170 DEG to 280 DEG C. Such filaments and fibers are distinguished by an increased resistance to swelling and hydrolysis and they are particularly suitable for reinforcing organic and inorganic materials.

    7.
    发明专利
    未知

    公开(公告)号:BR8500775A

    公开(公告)日:1985-10-08

    申请号:BR8500775

    申请日:1985-02-22

    Applicant: HOECHST AG

    Abstract: Monofils and bristles which comprise at least 90% by weight of acrylonitrile units and have a linear density of more than 2.5 tex possess a relative solution viscosity of 1.7 to 6.0, a tear strength of at least 20 cN/tex and an initial modulus of more than 700 cN/tex. The manufacturing process is distinguished by a wet stretch of the spun filaments by at least 1:4, drying under tension and a subsequent hot stretch of at least 1:2, the overall stretch being at least 1:8, preferably 1:10 to 1:20. The monofils and bristles according to the invention are suitable in particular for producing filament-reinforced composite materials.

    8.
    发明专利
    未知

    公开(公告)号:NO850719L

    公开(公告)日:1985-08-26

    申请号:NO850719

    申请日:1985-02-22

    Applicant: HOECHST AG

    Abstract: Monofils and bristles which comprise at least 90% by weight of acrylonitrile units and have a linear density of more than 2.5 tex possess a relative solution viscosity of 1.7 to 6.0, a tear strength of at least 20 cN/tex and an initial modulus of more than 700 cN/tex. The manufacturing process is distinguished by a wet stretch of the spun filaments by at least 1:4, drying under tension and a subsequent hot stretch of at least 1:2, the overall stretch being at least 1:8, preferably 1:10 to 1:20. The monofils and bristles according to the invention are suitable in particular for producing filament-reinforced composite materials.

    9.
    发明专利
    未知

    公开(公告)号:DK123983A

    公开(公告)日:1983-09-19

    申请号:DK123983

    申请日:1983-03-17

    Applicant: HOECHST AG

    Abstract: The invention relates to a process for preparing wet- or dry-spun filaments and fibers of polymers which consist to more than 50% by weight of acrylonitrile units and which are continually treated with an aqueous solution containing copper(I) ions during the fiber production process but before a first heat treatment above 100 DEG C. and the copper content in the fibrous material is fixed by heating to above 60 DEG C., preferably to above 100 DEG C. The filaments and fibers thus obtained can be dyed with acid dyestuffs, have bactericidal properties, and can be subjected to accelerated pre-oxidation.

    10.
    发明专利
    未知

    公开(公告)号:DK123883A

    公开(公告)日:1983-09-19

    申请号:DK123883

    申请日:1983-03-17

    Applicant: HOECHST AG

    Abstract: The invention relates to continuous processes for preparing dimethylformamide-insoluble acrylic filaments and fibers which incur a weight loss of at most 20, preferably 15% on being heated up to 400 DEG C., by spinning appropriate polymer solutions, treating the filament bundles obtained before the first drying or heating stage in a continuous manner with an aqueous solution containing copper(I) ions, thermally fixing the copper content, and heating the bundles to 200 DEG to 350 DEG C.

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