PROCESS FOR PRODUCING ULTRAFINE POWDERS BASED ON POLYAMIDES, ULTRAFINE POLYAMIDE POWDERS AND THEIR USE
    1.
    发明申请
    PROCESS FOR PRODUCING ULTRAFINE POWDERS BASED ON POLYAMIDES, ULTRAFINE POLYAMIDE POWDERS AND THEIR USE 审中-公开
    基于聚氨酯,超级聚酰胺粉及其使用生产超细粉的方法

    公开(公告)号:US20120264877A1

    公开(公告)日:2012-10-18

    申请号:US13494082

    申请日:2012-06-12

    摘要: Process for preparing ultrafine powders based on polyamides by contacting polyamides having a relative solution viscosity ηrel in the range from 1.5 to 2.0, measured in 0.5% m-cresol solution at 25° C., with an alcoholic medium in the presence of inorganic particles suspended therein under the action of pressure and/or temperature to generate an at least partial solution, and then precipitating the polyamide from the at least partial solution; the resulting ultrafine polyamide powders have a specific BET surface area of 5-100 m2/g; a fineness d50 of less than 70 μm; an apparent density AD from 250 to 1000 g/l; and a particle content of 0.1 to 80% by weight of inorganic particles based on the total weight of the polyamide powder; which powders are equally suitable for coatings and for mouldings and components with improved mechanical properties.

    摘要翻译: 通过使具有相对溶液粘度和相对浓度的相对比例在1.5至2.0的范围内的聚酰胺制备基于聚酰胺制备的超细粉末的方法,其在25℃的0.5%间甲酚溶液中,在无机物存在下用醇介质 在压力和/或温度的作用下悬浮在其中的颗粒以产生至少部分溶液,然后从所述至少部分溶液中沉淀聚酰胺; 所得超细聚酰胺粉末的BET比表面积为5-100m 2 / g; 细度d50小于70μm; 表观密度AD为250〜1000g / l; 和基于聚酰胺粉末的总重量的无机颗粒的0.1〜80重量%的颗粒含量; 这些粉末同样适用于涂料和具有改进的机械性能的模制品和组分。

    Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same
    2.
    发明授权
    Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same 有权
    作为基质的有机聚合物和无机粒子作为填料的组合物,其制备方法及其应用

    公开(公告)号:US07879938B2

    公开(公告)日:2011-02-01

    申请号:US11822862

    申请日:2007-07-10

    摘要: Compositions comprising an organic polymer as the matrix and inorganic particles as the filler and exhibiting in mixture a) 20 to 99.9% by wt. of an organic polymer and b) 0.1 to 80% by wt. of inorganic particles, where the sum of the constituents a) and b) amounts to 100% by wt.; and optionally c) 0 to 100 parts by weight of b) of various additives, in which case the content of the additives c) relates to the sum of a) and b), calculated as 100 parts by weight. characterized in that the composition can be obtained by incorporating particles and optionally other additives into the polymer matrix, in which case the particles to be incorporated i) are aggregates of globular primary particles; ii) the size of the primary particles is in a range of 0.5 nm to less than 100 nm; iii) the volume-weighted median value d50 of the particles is in a range of greater than 0.50 μm to 0.5 μm, determined by means of static light scattering; and iv) the inorganic particles are modified with functional groups, the inorganic particles exhibiting at least three types of functional groups of varying reactivity. The compositions can be prepared in a number of way, for example, by reprecipitation from the dissolved state or by mixing in an extruder and are used for preparing fibers, films and shaped articles with improved mechanical properties.

    摘要翻译: 包含作为基质的有机聚合物和作为填料的无机颗粒和以混合物表示的组合物a)20-99.9重量% 的有机聚合物,和b)0.1-80重量% 的无机颗粒,其中组分a)和b)的总量相当于100重量%。 并且任选地c)0至100重量份的b)各种添加剂,在这种情况下,添加剂c)的含量涉及以100重量份计算的a)和b)之和。 其特征在于,可以通过将颗粒和任选的其它添加剂并入聚合物基质中来获得组合物,在这种情况下,待加入的颗粒i)是球状初级颗粒的聚集体; ii)一次颗粒的尺寸在0.5nm至小于100nm的范围内; iii)颗粒的体积加权中值d50在通过静态光散射确定的大于0.50μm至0.5μm的范围内; 和iv)无机颗粒用官能团改性,无机颗粒表现出至少三种具有不同反应性的官能团。 组合物可以以多种方式制备,例如通过从溶解状态再沉淀或通过在挤出机中混合,并用于制备具有改善的机械性能的纤维,薄膜和成型制品。

    COMPOSITION OF POLYAMIDES WITH LOW CONCENTRATION OF CARBOXAMIDE GROUPS AND ELECTRICALLY CONDUCTIVE CARBON
    7.
    发明申请
    COMPOSITION OF POLYAMIDES WITH LOW CONCENTRATION OF CARBOXAMIDE GROUPS AND ELECTRICALLY CONDUCTIVE CARBON 有权
    碳酰胺基团和电导电碳浓度低的聚酰亚胺组合物

    公开(公告)号:US20130299750A1

    公开(公告)日:2013-11-14

    申请号:US13882689

    申请日:2011-10-31

    IPC分类号: H01B1/04

    摘要: A polyamide composition comprising the following components: a) at least 40 parts by weight of a polyamide whose monomer units contain an arithmetic average of at least 7.5 carbon atoms, b) 0.1 to 15 parts by weight of at least one salt with a non-metallic cation, c) 0.1 to 25 parts by weight of at least one dispersant based on esters or amides and d) an electrically conductive carbon selected from the group of carbon black, graphite powder, carbon fibres, carbon nanotubes and/or graphene, in an amount which results in a specific surface resistance of the polymer composition to IEC 60167 of 10−1 to 1010 Ω, e) 0 to 5 parts by weight of at least one metal salt, and optionally f) customary assistants and additives, where the polyamide of component a) is not a PA12 if carbon nanotubes are present as component d), and where the sum of the parts by weight of components a) to f) is 100, can be used for production of mouldings with improved electrical conductivity and improved surface quality.

    摘要翻译: 一种聚酰胺组合物,其包含以下组分:a)至少40重量份的单体单元含有至少7.5个碳原子的算术平均值的聚酰胺,b)0.1至15重量份的至少一种具有非 - 金属阳离子,c)0.1至25重量份的至少一种基于酯或酰胺的分散剂,以及d)选自碳黑,石墨粉,碳纤维,碳纳米管和/或石墨烯的导电碳, 导致根据IEC 60167的聚合物组合物的比表面电阻为10-1至1010Ω的量,e)0至5重量份的至少一种金属盐,以及任选的f)常规助剂和添加剂,其中 组分a)的聚酰胺不是PA12,如果碳纳米管作为组分d)存在,并且其中组分a)至f)的重量份之和为100,则可用于生产具有改进的导电性的模制品, 改善表面质量 性。

    Composition of polyamides with low concentration of carboxamide groups and electrically conductive carbon
    9.
    发明授权
    Composition of polyamides with low concentration of carboxamide groups and electrically conductive carbon 有权
    具有低浓度甲酰胺基团和导电碳的聚酰胺的组成

    公开(公告)号:US09418773B2

    公开(公告)日:2016-08-16

    申请号:US13882689

    申请日:2011-10-31

    摘要: A polyamide composition comprising the following components: a) at least 40 parts by weight of a polyamide whose monomer units contain an arithmetic average of at least 7.5 carbon atoms, b) 0.1 to 15 parts by weight of at least one salt with a non-metallic cation, c) 0.1 to 25 parts by weight of at least one dispersant based on esters or amides and d) an electrically conductive carbon selected from the group of carbon black, graphite powder, carbon fibers, carbon nanotubes and/or graphene, in an amount which results in a specific surface resistance of the polymer composition to IEC 60167 of 10−1 to 1010Ω, e) 0 to 5 parts by weight of at least one metal salt, and optionally f) customary assistants and additives, where the polyamide of component a) is not a PA12 if carbon nanotubes are present as component d), and where the sum of the parts by weight of components a) to f) is 100, can be used for production of mouldings with improved electrical conductivity and improved surface quality.

    摘要翻译: 一种聚酰胺组合物,其包含以下组分:a)至少40重量份的单体单元含有至少7.5个碳原子的算术平均值的聚酰胺,b)0.1至15重量份的至少一种具有非 - 金属阳离子,c)0.1至25重量份的至少一种基于酯或酰胺的分散剂,以及d)选自碳黑,石墨粉,碳纤维,碳纳米管和/或石墨烯的导电碳, 导致根据IEC 60167的聚合物组合物的比表面电阻为10-1至1010Ω的量,e)0至5重量份的至少一种金属盐,以及任选地f)常规助剂和添加剂,其中聚酰胺 的组分a)不是PA12,如果碳纳米管作为组分d)存在,并且其中组分a)至f)的重量份数之和为100,则可以用于具有改进的导电性和改进的模制品的生产 表面质量 y。