Production of thermally stabilized polyester
    1.
    发明授权
    Production of thermally stabilized polyester 失效
    热稳定聚酯的生产

    公开(公告)号:US4171422A

    公开(公告)日:1979-10-16

    申请号:US941448

    申请日:1978-09-11

    IPC分类号: C08G63/64 C08G63/68 C08G63/76

    CPC分类号: C08G63/64

    摘要: High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with certain polycarbonates in the presence of a catalytic amount of a phosphonium compound selected from the group consisting of tetra-n-alkylphosphonium acetates and tetra-n-alkylphosphonium halides. For the purpose of this disclosure, polycarbonates are defined as linear polyesters of carbonic acid in which the carbonate groups recur in the polymer chain. In continuous production of the improved polyesters, it is preferred that the polycarbonate and catalyst be added to the process stream with mixing at a point to give 2 to 15 minutes reaction time under superatmospheric pressure before the polyester enters the last polycondensation reactor.

    摘要翻译: 在催化量的选自四正烷基鏻乙酸盐和四正丁基鏻盐的鏻化合物的存在下,通过使熔融形式的聚酯与某些聚碳酸酯反应,稳定耐高温分子量的线性缩聚聚酯, 烷基卤化鏻。 为了本公开的目的,聚碳酸酯被定义为其中碳酸酯基在聚合物链中复发的碳酸的直链聚酯。 在改进的聚酯的连续生产中,优选在聚酯进入最后一个缩聚反应器之前,将聚碳酸酯和催化剂在一个点上混合加入到工艺流中,以在超大气压下反应时间为2-15分钟。

    Production of thermally stabilized polyester
    2.
    发明授权
    Production of thermally stabilized polyester 失效
    热稳定聚酯的生产

    公开(公告)号:US4139521A

    公开(公告)日:1979-02-13

    申请号:US895900

    申请日:1978-04-13

    摘要: High molecular weight linear condensation polyesters are stabilized against deterioration by heat with a stabilizer comprising an N-epoxyalkyl imide of a dicarboxylic acid, having 5 to 20 carbon atoms in the imide molecule and composed of carbon, hydrogen, carbonyl and epoxy oxygen, and imide nitrogen atoms, said epoxy oxygen being linked to adjacent carbon atoms.

    摘要翻译: 高分子量线性缩合聚酯通过加热稳定化而稳定化,该稳定剂包括在酰亚胺分子中具有5至20个碳原子的二羧酸的N-环氧烷基酰亚胺,由碳,氢,羰基和环氧基氧化合物和酰亚胺组成 氮原子,所述环氧氧与相邻的碳原子连接。

    Production of thermally stabilized polyester
    6.
    发明授权
    Production of thermally stabilized polyester 失效
    热稳定聚酯的生产

    公开(公告)号:US4115350A

    公开(公告)日:1978-09-19

    申请号:US819654

    申请日:1977-07-27

    摘要: High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with an epoxy compound having 5 to 25 carbon atoms in the molecule and selected from the group consisting of ##STR1## where R represents the radical remaining after removal of the carboxyl group from a monocarboxylic acid, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent hydrogen or hydrocarbon radicals, and n is an integer that can be 0 to 3.

    摘要翻译: 通过使熔融形式的聚酯与分子中具有5至25个碳原子的环氧化合物反应,选择高分子量线性缩聚聚酯来防止由于热而劣化,并且选自由下列组成的组:其中R 表示从一元羧酸除去羧基后剩余的残基,R1,R2,R3和R4表示氢或烃基,n为0〜3的整数。

    Spin finish composition
    7.
    发明授权
    Spin finish composition 失效
    旋转成品

    公开(公告)号:US5232742A

    公开(公告)日:1993-08-03

    申请号:US883737

    申请日:1992-05-15

    摘要: Spin finish concentrate composition and the oil-in-water emulsion made from the concentrate for application for conventional speed or high speed melt spinning processes for producing polyester or polyamide yarns, consists essentially of oil lubricant component, pentaerythritol ester lubricant, ethoxylated sorbitan monooleate of HLB ranging from 6 to 15, anionic antistatic agent, water soluble sulfosuccinate wetting agent, and oil soluble ethoxylated polymethylsiloxane wetting agent having molecular weight of 400 to 700 and an aqueous surface tension value of less than 21 dynes/cm. The concentrate has long term stability. The finish prepared from the concentrate produces excellent quality yarn with virtually no broken filaments, and leaves no deposits on heated draw rolls, relaxation rolls and any yarn guides during spinning and drawing operations.

    摘要翻译: 旋转精炼组合物和由用于生产聚酯或聚酰胺纱的常规速度或高速熔融纺丝方法的浓缩物制成的水包油乳液基本上由油润滑剂组分,季戊四醇酯润滑剂,HLB的乙氧基化脱水山梨糖醇单油酸酯 范围为6至15,阴离子抗静电剂,水溶性磺基琥珀酸盐润湿剂和分子量为400至700且水溶液表面张力值小于21达因/厘米的油溶性乙氧基化聚甲基硅氧烷润湿剂。 精矿长期稳定。 由精矿制成的表面处理产生优质的纱线,几乎没有断丝,并且在纺丝和拉丝操作过程中不会在加热的拉丝辊,松弛辊和任何导纱器上留下沉积物。

    Cut resistant antimicrobial yarn and apparel
    8.
    发明授权
    Cut resistant antimicrobial yarn and apparel 有权
    抗切割抗菌纱线和服装

    公开(公告)号:US06260344B1

    公开(公告)日:2001-07-17

    申请号:US09349267

    申请日:1999-07-07

    IPC分类号: D02G306

    摘要: A knittable cut resistant yarn for use in protective wear, such as gloves, arm protectors, aprons, or the like, including a core with at least one strand of flexible material selected from the group consisting of stainless steel wire and poly-paraphenylene terephthalamide. The core is wrapped with at least one strand of an antimicrobial treated acrylic fiber. A first wrap is wound in one direction about the core having a denier in the range of about 75 to about 600. Each additional wrap is wound about the core in a different direction. The antimicrobial treated acrylic fiber contains the antimicrobial agent 5-chloro-2-(2,4-dichlorophenoxy)phenol.

    摘要翻译: 用于保护性磨损的可编织抗切割纱线,例如手套,臂保护器,围裙等,包括具有选自不锈钢丝和聚对苯二甲酰对苯二胺的至少一股柔性材料的芯。 核心用至少一股抗微生物处理的丙烯酸纤维包裹。 第一包裹绕一个方向缠绕在具有大约75至大约600的范围内的旦尼尔的纤芯上。每个额外的包裹物以不同的方向缠绕在芯上。 抗微生物处理的丙烯酸纤维含有5-氯-2-(2,4-二氯苯氧基)苯酚的抗微生物剂。

    Spin finish composition and method of using a spin finish composition
    9.
    发明授权
    Spin finish composition and method of using a spin finish composition 失效
    旋涂组合物和使用旋涂组合物的方法

    公开(公告)号:US5358648A

    公开(公告)日:1994-10-25

    申请号:US150518

    申请日:1993-11-10

    摘要: Spin finish composition for conventional speed spinning of polyester yarns providing yarn of superior quality, low emissions and no significant deposits on processing equipment, is a non-aqueous composition consisting essentially of from 10 to 70% by weight of a trimethylol or tetramethylol C.sub.1 -C.sub.3 alkane ester wherein all the methylol groups are esterified with C.sub.8 -C.sub.10 saturated carboxylic acid, preferably trimethylol propane tripelargonate, from 10 to 70% by weight of tetraethylene glycol diester of C.sub.8 -C.sub.10 saturated carboxylic acid, preferably tetraethylene glycol diester of decanoic and octanoic acid, from 5 to 50% by weight of low volatility, light viscosity, 15 low surface tension, substantially aromatic-free light mineral oil, preferably consisting essentially of C.sub.12 -C.sub.15 isoparaffic hydrocarbon, and from 2 to 20% by weight of 1H-imidazolium, 1-ethyl-4,5-dihydro-3-(2-hydroxyethyl)-2-(8-heptadecenyl)-, ethyl sulfate. Compositions with viscosities of greater than 17 as determined with a Brookfield viscometer at 20.degree. C. are heated 40 to 90.degree. C. but below the flash point of any component to reduce the viscosity to provide a reduced viscosity composition for application to polyester yarns.

    摘要翻译: 提供优质,低排放,无处理设备沉淀的纱线的聚酯纱线的常规速度纺丝的纺丝成品组合物是基本上由10至70重量%的三羟甲基或四羟甲基C1-C3组成的非水组合物 烷基酯,其中所有羟甲基用C 8 -C 10饱和羧酸,优选三羟甲基丙烷三醇酯酯化,10至70重量%的C 8 -C 10饱和羧酸的四甘醇二酯,优选癸酸和辛酸的四甘醇二酯 ,5至50重量%的低挥发性,轻粘度,15低表面张力,基本上无芳族的轻质矿物油,优选基本上由C12-C15异构烃组成,和2至20重量%的1H-咪唑 ,1-乙基-4,5-二氢-3-(2-羟基乙基)-2-(8-十七烯基) - 乙基硫酸盐。 使用Brookfield粘度计在20℃测定的粘度大于17的组合物加热至40℃至90℃,但低于任何组分的闪点,以降低粘度,以提供用于聚酯纱线的降低粘度的组合物。