METHOD FOR PRODUCING ACRYLIC FIBER
    41.
    发明申请

    公开(公告)号:US20170335491A1

    公开(公告)日:2017-11-23

    申请号:US15673494

    申请日:2017-08-10

    CPC classification number: D01F6/40 D01D5/06 D01F1/10

    Abstract: A method for producing acrylic fiber includes preparing a spinning solution including an acrylic copolymer, dimethyl sulfoxide, water, and a polyphosphate; and subjecting the spinning solution to wet spinning, wherein the acrylic copolymer includes acrylonitrile in an amount of 20 to 85 mass %, vinyl chloride in an amount of 14.5 to 79.5 mass %, and a sulfonic acid group-containing monomer in an amount of 0.5 to 10 mass % with respect to a total mass of the acrylic copolymer.

    Thermal resistance-improved flame retardant cloth
    43.
    发明授权
    Thermal resistance-improved flame retardant cloth 失效
    耐热改性阻燃布

    公开(公告)号:US5981407A

    公开(公告)日:1999-11-09

    申请号:US180285

    申请日:1998-11-10

    Abstract: Provided is a flame-retardant fabric comprising (A) from 16 to 45 parts by weight of a halogen-containing fiber containing from 11 to 67% by weight of a halogen chemically bound to a polymer and from 4 to 30% by weight of an Sb compound not chemically bound to a polymer, (B) from 10 to 36 parts by weight of a polyvinyl alcohol fiber, and (C) from 60 to 40 parts by weight of a polyester fiber, which are compounded to total 100 parts by weight. The flame-retardant fabric of the present invention has an excellent heat resistance, an excellent processability and a high flame retardance. This fabric can improve the feeling after high-temperature processing such as transfer printing and further widen the range of application of a polyester fiber product.

    Abstract translation: PCT No.PCT / JP97 / 01597 Sec。 371日期:1998年11月10日 102(e)1998年11月10日日期PCT提交1997年5月12日PCT公布。 第WO97 / 43475号公报 日期1997年11月20日提供阻燃织物,其包含(A)16至45重量份含有11至67重量%的与聚合物化学键合的卤素和4至30重量份的含卤素纤维 未与化合物结合的Sb化合物的重量%,(B)10〜36重量份的聚乙烯醇纤维,(C)60〜40重量份的聚酯纤维, 共100重量份。 本发明的阻燃性织物具有优异的耐热性,优异的加工性和高阻燃性。 这种织物可以改善转印后的高温加工后的感觉,进一步拓宽了聚酯纤维制品的应用范围。

    Acrylic fiber having Y-type section and process for producing the same
    45.
    发明授权
    Acrylic fiber having Y-type section and process for producing the same 失效
    具有Y型截面的丙烯酸纤维及其制造方法

    公开(公告)号:US4812361A

    公开(公告)日:1989-03-14

    申请号:US800158

    申请日:1985-11-20

    Abstract: The present invention relates to acrylic fibers each having a Y-type cross section which consist of an acrylic polymer constituted of at least 50% by weight of acrylonitrile, characterized in that the Y-type cross section is constructed substantially of three rectangles and when the thickness values of the middle part, innermost part, and outermost part of each component rectangle are represented by d.sub.0, d.sub.1, and d.sub.2, respectively, the ratios of d.sub.1 /d.sub.0 and d.sub.2 /d.sub.0 are each in the range of 0.95 to 1.05, and a process for producing the same comprising discharging an organic solvent solution which contains an acrylic polymer constituted of at least 50% by weight of acrylonitrile, dissolved at a concentration of 22 to 30% by weight, and has a viscosity of 200 to 500 poises, through spinneret holes each having a Y-type cross section constructed substantially of three rectangles, into a coagulating liuqid composed of an organic solvent and water at a spinning draft of 1.1 to 1.8, and subjecting the thus spun filaments to washing and stretching. The acrylic fibers of the present invention have excellent bulkiness and softness to the touch.

    Abstract translation: 本发明涉及各自具有由至少50重量%的丙烯腈构成的丙烯酸系聚合物构成的Y型截面的丙烯系纤维,其特征在于,Y型截面由3个矩形构成, 每个分量矩形的中间部分,最内部分和最外部分的厚度值分别由d0,d1和d2表示,d1 / d0和d2 / d0的比率各自在0.95至1.05的范围内, 其制造方法包括排出含有由至少50重量%丙烯腈构成的丙烯酸类聚合物的有机溶剂溶液,其浓度为22〜30重量%,粘度为200〜500泊, 通过各自具有基本上由三个矩形构成的Y型横截面的喷丝孔,以1.1〜1.8的纺丝牵伸力由有机溶剂和水组成的凝结液, 从而纺丝长丝进行洗涤和拉伸。 本发明的丙烯酸纤维具有优异的蓬松度和柔软度。

    Continuous liquid phase process for melt spinning acrylonitrile polymer
    46.
    发明授权
    Continuous liquid phase process for melt spinning acrylonitrile polymer 失效
    熔体纺丝丙烯腈聚合物的连续液相法

    公开(公告)号:US4461739A

    公开(公告)日:1984-07-24

    申请号:US457783

    申请日:1983-01-13

    CPC classification number: D01F6/18

    Abstract: A process for preparing fibers from acrylonitrile polymer via melt spinning is disclosed wherein a slurry of polymer, water and surfactant are evaporated to form a single phase homogeneous melt of less than about 25 weight percent water and in the range from about 12 to 20 percent.

    Abstract translation: 公开了一种通过熔融纺丝从丙烯腈聚合物制备纤维的方法,其中将聚合物,水和表面活性剂的浆料蒸发以形成小于约25重量%水并且在约12至20%范围内的单相均匀熔体。

    Fiber from acrylonitrile copolymers having reduced inflammability,
compositions and processes for manufacturing the same
    47.
    发明授权
    Fiber from acrylonitrile copolymers having reduced inflammability, compositions and processes for manufacturing the same 失效
    具有降低的易燃性的丙烯腈共聚物的纤维,组合物及其制造方法

    公开(公告)号:US4224210A

    公开(公告)日:1980-09-23

    申请号:US953971

    申请日:1978-10-19

    CPC classification number: D06M15/285 D01F6/40 D06M15/31

    Abstract: Textile fibers having reduced inflammability and high luster, constituted copolymers of acrylonitrile, vinylidene chloride and a significantly homopolymerizable sulphonic comonomer are described. Significantly homopolymerizable comonomers are defined as monomers which homopolymerize with a conversion above 30.degree.-40.degree. under standard conditions set forth in the specification. A preferred class of such comonomers are the derivatives of acrylamidoalkanesulphonic acids, e.g. 2-acrylamido-2-methylpropane-sodium sulphonate. The fibers are spun from spinning dopes containing said copolymers in solution in organic solvent miscible with water and less than 4% of water. Said spinning dopes can be obtained by preparing a binary copolymer of acrylonitrile and the sulphonic monomer, in solution in the solvent, mixing the solution with a solution of acrylonitrile and vinylidene monomers in the same solvent, and subjecting the mixture to copolymerization. The copolymers finally obtained contain 50-85% of acrylonitrile, 13.5-46.5% of vinylidene chloride, and 1.5-3.5% of the sulphonic comonomer, the percentages being by weight.

    Abstract translation: 描述了由丙烯腈,偏二氯乙烯和显着均聚的磺酸共聚单体的共聚物构成的具有降低的易燃性和高光泽性的纺织纤维。 明显均匀的共聚单体被定义为在说明书中规定的标准条件下以30°-40°以上的转化率均聚的单体。 一类优选的共聚单体是丙烯酰氨基烷基磺酸的衍生物,例如 2-丙烯酰胺基-2-甲基丙烷磺酸钠。 纤维由含有所述共聚物的纺丝剂在溶液中从与水混合的有机溶剂和小于4%的水中纺丝。 所述纺丝剂可以通过在溶剂溶液中制备丙烯腈和磺酸单体的二元共聚物,将溶液与丙烯腈和亚乙烯基单体的溶液在同一溶剂中混合,并使混合物共聚得到。 最终获得的共聚物包含50-85%的丙烯腈,13.5-46.5%的偏二氯乙烯和1.5-3.5%的磺酸共聚单体,百分比是重量百分数。

    Modacryl filaments and fibers and process for their manufacture

    公开(公告)号:US4056517A

    公开(公告)日:1977-11-01

    申请号:US661117

    申请日:1976-02-25

    CPC classification number: D01F6/40 D01D5/06

    Abstract: The invention relates to modacryl filaments and fibers made from copolymers insoluble in acetone of acrylonitrile and from 20 to 45 weight % of vinylidene chloride, containing from 0 to 1.5 weight % of unsaturated organic sulfonic acids or the salts thereof, and from 0 to 10 weight % of further copolymerizable compounds, which copolymers have a K value according to Fikentscher of more than about 95 and a process for the manufacture thereof. These modacryl filaments and fibers are especially distinguished by their permanent brilliance and permanent transparence; these properties are maintained even on contact with water having a temperature above 80.degree. C.

    THERMOPLASTIC MODACRYLIC RESIN AND THERMOPLASTIC MODACRYLIC RESIN COMPOSITION INCLUDING SAME

    公开(公告)号:US20250019481A1

    公开(公告)日:2025-01-16

    申请号:US18897202

    申请日:2024-09-26

    Abstract: A thermoplastic modacrylic resin suitable for producing modacrylic fiber excellent in strength and/or melt spinning stability is provided. The thermoplastic modacrylic resin includes a copolymer. The copolymer includes a polymer (A) that includes a modacrylic resin containing constituent unit 1 derived from acrylonitrile (a1) and constituent unit 2 derived from an ethylenically unsaturated monomer (a2) other than the acrylonitrile (a1), and a polymer (B) that contains constituent unit 3 derived from acrylonitrile (b1). The polymer (B) has first and second terminals and is bound to the polymer (A) at the second terminal. The polymer (B) has 30 mol % or more to less than 70 mol % of all constituent unit 3 in a terminal region that contains the first terminal and contains one-half of all constituent units in the polymer (B). The constituent unit 3 content is 3 to 50 mol % relative to all constituent units in the polymer (B).

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