知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

90 条记录 (耗时 0.02 秒)

    Modified textiles and other materials and methods for their preparation
    2.
    发明申请
    Modified textiles and other materials and methods for their preparation 失效
    改性纺织品及其制备方法

    公开(公告)号：US20020189024A1

    公开(公告)日：2002-12-19

    申请号：US10190188

    申请日：2002-07-05

    申请人： Nano-Tex, LLC

    发明人： David S. Soane ,  David A. Offord

    IPC分类号： D06M010/00

    CPC分类号： C08B3/12 ,  C08B3/10 ,  C08B3/14 ,  C08B15/00 ,  D06M13/184 ,  D06M13/513 ,  D06M15/03 ,  D06M15/05 ,  D06M15/11 ,  D06M15/227 ,  D06M15/263 ,  D06M15/277 ,  D06M15/285 ,  D06M15/333 ,  D06M15/347 ,  D06M15/3562 ,  D06M15/643 ,  D06M23/00 ,  D06M23/005 ,  D06M2101/06 ,  D06M2101/12 ,  D06M2101/34 ,  D06M2400/01 ,  D06P1/653 ,  D06P5/04 ,  Y10T442/2164

    摘要： Provided are compounds and methods for modifying a material to change properties of the material, as well as a variety of products obtained using the methods. In one embodiment, a material comprising one or more modifiable functional groups is reacted with an activated hydrophobic acyl group in the presence of a hindered base, thereby to covalently attach the hydrophobic acyl group to the modifiable functional groups on the material. The material which is modified may be, for example, a carbohydrate, and the modifiable functional groups on the material may be hydroxyls. For example, materials such as cellulose may be modified by reacting it with an acid chloride or acid anhydride including a hydrophobic acyl group, in the presence of a hindered base, such as tripentylamine, to attach the hydrophobic acyl groups to the hydroxyls on the cellulose, thereby to increase the hydrophobicity of the cellulose. The methods and compounds disclosed herein may be used to modify materials to improve properties such as resistance, grease repellency, soil resistance and permanent press properties.

    摘要翻译： 提供了用于改变材料以改变材料性质的化合物和方法，以及使用这些方法获得的各种产品。 在一个实施方案中，包含一个或多个可修饰的官能团的材料在受阻碱的存在下与活化的疏水性酰基反应，从而将疏水性酰基共价连接到材料上的可修饰的官能团上。 被修饰的材料可以是例如碳水化合物，并且材料上的可修饰的官能团可以是羟基。 例如，可以通过使诸如纤维素的材料与含有疏水性酰基的酰基氯或酸酐在受阻碱例如三戊胺的存在下进行反应来将疏水性酰基连接到纤维素上的羟基上 ，从而增加纤维素的疏水性。 本文公开的方法和化合物可用于改性材料以改善诸如电阻，拒油性，耐土壤性和永久性冲击性能的性能。

    Compositions containing dithionites
    7.
    发明授权
    Compositions containing dithionites 失效
    含有DITHIONITES的组合物

    公开(公告)号：US3856696A

    公开(公告)日：1974-12-24

    申请号：US30102872

    申请日：1972-10-26

    申请人： BRITISH OXYGEN CO LTD

    发明人： STANBANK D ,  LEIGH R ,  GIBSON G

    IPC分类号： C01B17/66 ,  C11D7/54 ,  D06L4/30 ,  D06P1/28 ,  D06P1/653 ,  D06P1/673 ,  D21C9/10 ,  C09K3/00

    CPC分类号： C01B17/665 ,  D06L4/30 ,  D06P1/653 ,  D06P1/67375 ,  D21C9/1089

    摘要： A substantially anhydrous and homogeneous composition consisting essentially of a dithionite selected from sodium, potassium and calcium dithionites and from 0.1 to 10% by weight in said composition of an unsaturated carboxylic acid or an anhydride thereof. Preferred acids are aryloxy alkanoic acids of formula ArORCO2H wherein Ar is a substituted or unsubstituted aryl group and R is a substituted or unsubstituted methylene or polymethylene group. Most preferred is phenoxyacetic acid. Such acids may exhibit enhanced effectiveness over previous stabilizers.

    摘要翻译： 基本上无水和均匀的组合物，其基本上由选自连二亚硫酸钠，钾和钙的连二亚硫酸盐和所述组合物中的0.1至10重量％的不饱和羧酸或其酸酐组成。 优选的酸是式ArORCO 2 H的芳氧基链烷酸，其中Ar是取代或未取代的芳基，R是取代或未取代的亚甲基或聚亚甲基。 最优选的是苯氧基乙酸。 这些酸可以表现出比以前的稳定剂更强的效力。