Wholly aromatic polyamide
    3.
    发明授权
    Wholly aromatic polyamide 失效
    全芳香族聚酰胺

    公开(公告)号:US4987217A

    公开(公告)日:1991-01-22

    申请号:US422116

    申请日:1989-10-16

    IPC分类号: C08G69/32

    CPC分类号: C08G69/32

    摘要: Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae ##STR1## and up to 5 mol % of structural units containing m-bonds. --Ar-- and --Ar'-- are here divalent, unsubstituted or substituted aromatic radicals, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and --R and --R' are different from one another and are lower alkyl radicals or lower alkoxy radicals.

    摘要翻译: 可溶于有机聚酰胺溶剂的芳族共聚酰胺包含至少95mol%的式OCArCO A HNAr'NH B& C> D的复发结构单元和至多5mol%的含有m键的结构单元 。 -Ar-和-Ar'-在这里是二价,未取代或取代的芳族基团,其价键位于对位或相当的同轴或平行位置,并且-R和-R'彼此不同 并且是低级烷基或低级烷氧基。

    Process for the continuous drawing and texturizing of filaments
    4.
    发明授权
    Process for the continuous drawing and texturizing of filaments 失效
    丝的连续拉伸和变形的工艺

    公开(公告)号:US4769880A

    公开(公告)日:1988-09-13

    申请号:US511636

    申请日:1983-07-07

    IPC分类号: D02G1/00 D04B19/00 D04B35/22

    CPC分类号: D02G1/002

    摘要: The invention provides a process for the continuous successive drawing and texturizing of undrawn multifilament polyester yarns according to the knit/deknit process, wherein undrawn filaments or yarns having a high preorientation corresponding to a yield stress of above 7.5 cN/tex are continuously drawn at room temperature and immediately thereafter subjected to a known knit/deknit texturizing.

    摘要翻译: 本发明提供了一种根据编织/脱胶方法连续连续拉伸和拉伸未拉伸复丝聚酯纱线的方法,其中在室内连续拉伸对应于高于7.5cN / tex的屈服应力的具有高预取向度的未拉伸长丝或纱线 然后立即进行已知的编织/解嵌纹理化。

    Process for the manufacture of filament yarn having protruding filament
ends
    5.
    发明授权
    Process for the manufacture of filament yarn having protruding filament ends 失效
    用于制造具有突出长丝端部的长丝纱线的方法

    公开(公告)号:US3995004A

    公开(公告)日:1976-11-30

    申请号:US450439

    申请日:1974-03-12

    CPC分类号: D01G1/086 Y10T428/2976

    摘要: A process is provided for the manufacture of filament yarn having protruding filament ends on the basis of synthetic high polymers by melt spinning of the polymers through spinning nozzles, which comprises subjecting the multifilaments still hot after having left the spinning nozzle to a section cooling which causes determined sections of the single filaments to have a different molecular structure, and by subsequently drawing the filaments in a ratio which is greater than corresponding to those filament sections having a lower drawing ratio, and smaller than corresponding to those filament sections having a higher drawing ratio, thus causing the formation of determined breaks which supply the desired fiber ends.

    摘要翻译: 提供了一种通过纺丝喷嘴熔融纺丝聚合物,通过合成高聚合物制造具有突出长丝端的长丝纱线的方法,该方法包括在离开纺丝喷嘴之后对仍然热的多丝纤维进行部分冷却,从而导致 单丝的确定部分具有不同的分子结构,并且随后以与具有较低拉伸比的那些长丝部分相对应的比例大幅度地拉伸长丝,并且小于相应于具有较高拉伸比的那些长丝部分 ,从而形成确定的断裂,其提供所需的纤维末端。

    Process for the manufacture of filament yarn having protruding filament
ends
    7.
    发明授权
    Process for the manufacture of filament yarn having protruding filament ends 失效
    用于制造具有突出长丝端部的长丝纱线的方法

    公开(公告)号:US4021520A

    公开(公告)日:1977-05-03

    申请号:US450438

    申请日:1974-03-12

    CPC分类号: D02J13/005

    摘要: A process is provided for the manufacture of filament yarns having fine protruding filament ends, which comprises subjecting filament yarns, wherein at least part of the filaments consist of polymers the lateral bending resistance (Knickscheuerbestandigkeit) of which can be thermally influenced, to an intermittent sectional treatment, thus ensuring that determined sections of the filaments have a low lateral bending resistance, and by subsequently breaking these sections of low lateral bending resistance by transverse stress, which causes formation of the desired free filament ends.

    摘要翻译: 提供了一种制造具有细长的突出长丝端的长丝纱线的方法,该方法包括对长丝纱线进行处理,其中至少部分长丝由聚合物组成,其横向抗弯曲性(Knickscheuerbestandigkeit)可被热影响)到间歇部分 从而确保长丝的确定部分具有低的侧向抗弯曲性,并且随后通过横向应力破坏这些具有低侧向抗弯曲性的部分,这导致所需自由长丝端部的形成。

    Aromatic copolyaide from diamino benzanilide
    8.
    发明授权
    Aromatic copolyaide from diamino benzanilide 失效
    来自二氨基苯甲酰苯胺的芳香族共聚物

    公开(公告)号:US5266672A

    公开(公告)日:1993-11-30

    申请号:US905893

    申请日:1992-06-29

    CPC分类号: C08G69/32 C08G69/265

    摘要: Aromatic copolyamides are described which are soluble in organic polyamide solvents and which essentially consist of the recurring structural units of the formulae Ia, Ib and Ic ##STR1## wherein R.sup.1 and R.sup.4 are divalent aromatic radicals, the valency bonds of which are in the para position or in a comparable coaxial or parallel position relative to one another, R.sup.2 is a radical of the formula III ##STR2## and R.sup.3 is a radical of the formula IV ##STR3## The mole fractions of the individual structural features in the copolyamides are fixed within selected limits. Fibers composed of the copolyamides claimed are distinguished by a high stretchability.

    摘要翻译: 描述了芳族共聚酰胺,其可溶于有机聚酰胺溶剂,并且其基本上由式Ia,Ib和Ic [OCR1CONHR2NH],(Ia)[OCR1CONHR3NH],(Ib)[OCR1CONHR3NH],(Ib)[OCR1CONHR4NH],(Ic)的重复结构单元组成 R 1和R 4是二价芳族基团,其价键位于相对于彼此的对位或相当的同轴或平行位置,R 2是式III的基团(III),并且R 3是基团 (IV)共聚酰胺中各个结构特征的摩尔分数固定在选定的范围内。 由所要求的共聚酰胺组成的纤维具有高的拉伸性。

    Aromatic copolyamide
    9.
    发明授权
    Aromatic copolyamide 失效
    芳香共聚酰胺

    公开(公告)号:US5124436A

    公开(公告)日:1992-06-23

    申请号:US664948

    申请日:1991-03-05

    CPC分类号: C08G69/32 C08G69/36

    摘要: Aromatic copolyamides, preparation thereof and structures formed therefromThere are described aromatic copolyamides which are soluble in organic solvents for polyamides and which comprise at least 95 mol % of recurring structural units of formulae ##STR1## and up to 5 mol % of meta-bonded structural units E and/or F derived from aromatic dicarboxylic acids (E') and/or from aromatic diamines (F'), the sum total of the mole fractions of structural units A+E and the sum total of the mole fractions of structural units B+C+D+F being essentially of equal magnitude.The copolyamides of the present invention can be processed into fibers having high strengths and high breaking extensions.

    摘要翻译: 芳族共聚酰胺,其制备方法和由其形成的结构描述了可溶于聚酰胺的有机溶剂中的芳香族共聚酰胺,其包含至少95mol%的式OC a CO A NHAr'NH B的重复结构单元 和至多5摩尔%的由芳族二羧酸(E')和/或芳族二胺(F')衍生的间接键合结构单元E和/或F,结构单元A + E的摩尔分数的总和 并且结构单元B + C + D + F的摩尔分数的总和基本上等于大小。 本发明的共聚酰胺可以加工成具有高强度和高断裂延伸性的纤维。

    Wholly aromatic polyamide, process for preparing same and structure
thereof.
    10.
    发明授权
    Wholly aromatic polyamide, process for preparing same and structure thereof. 失效
    全芳香族聚酰胺,其制备方法及其结构。

    公开(公告)号:US4987215A

    公开(公告)日:1991-01-22

    申请号:US422091

    申请日:1989-10-16

    IPC分类号: B01D71/56 C08G69/32

    CPC分类号: B01D71/56 C08G69/32

    摘要: Aromatic copolyamides, soluble in organic polyamide solvents, comprise at least 95 mol % of the recurrent structural units of the formulae ##STR1## and up to 5 mol % of structural units containing m-bonds. Here --Ar--is a divalent, unsubstituted or substituted aromatic radical, the valency bonds of which are in the para-position or in a comparable coaxial or parallel position, and --R--and --R' are different from one another and are lower alkyl radicals or lower alkoxy radicals.

    摘要翻译: 可溶于有机聚酰胺溶剂的芳香族共聚酰胺包含至少95mol%的式OCArCO A B图像的复发结构单元和至多5mol%含有m键的结构单元 。 这里-Ar-是二价,未取代或取代的芳族基团,其价键位于对位或可比较的同轴或平行位置,并且-R - 和-R'彼此不同并且较低 烷基或低级烷氧基。