PBO Fibers with Improved Mechanical Properties when Exposed to High Temperatures and High Relative Humidity
    3.
    发明申请
    PBO Fibers with Improved Mechanical Properties when Exposed to High Temperatures and High Relative Humidity 有权
    PBO纤维在暴露于高温和高相对湿度时具有改进的机械性能

    公开(公告)号:US20150067940A1

    公开(公告)日:2015-03-12

    申请号:US14391984

    申请日:2013-04-11

    摘要: A method of treating fibers to improve resistance to high temperatures and relative humidity includes providing poly(p-phenylene-2,6-benzobisoxazole) (PBO) fibers, exposing the PBO fibers to an atmosphere of supercritical CO2 saturated with an epoxy silane, i.e. 3-glycidoxypropyl methyldimethoxysilane. The PBO fibers are subjected to a first pressurizing and heating stage at a first temperature (50° C.) for a first period of time. The PBO fibers are then subjected to a second pressurizing and heating stage including increasing the temperature to a second temperature (110° C.) and holding at the second temperature for an additional period of time. The PBO fibers include 2-5 wt % of 3-glycidoxypropyl methyldimethoxysilane after diffusing the CO2 out of the PBO fibers. The fibers are particularly useful in making lightweight body armor system components.

    摘要翻译: 处理纤维以改善耐高温和相对湿度的方法包括提供聚(对亚苯基-2,6-苯并双恶唑)(PBO)纤维,将PBO纤维暴露于用环氧硅烷饱和的超临界CO 2气氛中,即 3-环氧丙氧基丙基甲基二甲氧基硅烷。 PBO纤维在第一温度(50℃)下经受第一加压和加热阶段第一段时间。 然后将PBO纤维进行第二加压和加热阶段,包括将温度升高至第二温度(110℃),并在第二温度下保持另外的时间。 PBO纤维在将CO 2从PBO纤维中扩散出来之后,包括2-5重量%的3-缩水甘油氧基丙基甲基二甲氧基硅烷。 纤维在制造轻量级的装甲系统部件中特别有用。

    Method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide
    6.
    发明授权
    Method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide 有权
    在超临界或近超临界二氧化碳中用活性染料染色底物的方法

    公开(公告)号:US07938865B2

    公开(公告)日:2011-05-10

    申请号:US11718594

    申请日:2005-11-04

    IPC分类号: C09B62/00 D06P1/94

    摘要: The present invention relates to a method of dyeing a substrate with a reactive dyestuff in supercritical or near supercritical carbon dioxide, said substrate being selected from the group consisting of cellulose fibers, modified cellulose fibers, protein fibers and of synthetic fibers, or any combination thereof, wherein the method comprises the subsequent steps of: pre-treating the substrate by wetting the substrate with a fluid medium containing at least 10 wt. %, preferably at least 40 wt. % of one or more organic hydrogen bond acceptor compounds selected from the group consisting of C1-C6 alkanols, dimethyl sulfoxide, dimethylformamide, acetone, butan-2-one, dimethyl ether, methyl acetate and ethyl acetate; dyeing the substrate by contacting the pre-treated substrate with supercritical or near supercritical carbon dioxide containing a reactive dyestuff.

    摘要翻译: 本发明涉及一种在超临界或近超临界二氧化碳中用活性染料染色底物的方法,所述底物选自纤维素纤维,改性纤维素纤维,蛋白质纤维和合成纤维,或其任何组合 其中所述方法包括以下步骤:通过用含有至少10重量%的流体介质润湿所述基材来预处理所述基材。 %,优选至少40wt。 %的一种或多种选自C1-C6链烷醇,二甲亚砜,二甲基甲酰胺,丙酮,丁-2-酮,二甲醚,乙酸甲酯和乙酸乙酯的有机氢键受体化合物; 通过使预处理的基材与含有活性染料的超临界或近超临界二氧化碳接触来染色基底。

    Cigarette filters
    7.
    发明申请
    Cigarette filters 有权
    香烟过滤器

    公开(公告)号:US20080029112A1

    公开(公告)日:2008-02-07

    申请号:US11607949

    申请日:2006-12-04

    IPC分类号: A24D3/06

    摘要: Fibrous material suitable for incorporation into filter elements of smoking articles such as cigarettes are impregnated with additives and agents such as flavorants, flavorant-enhancers and/or free radical scavengers. The fibrous material is contacted with the additive dispersed in a high pressure gas or supercritical fluid (SCF) held at elevated pressures. The high pressure gas or SCF swells the fibrous matrix and enables the additive to be incorporated within the matrix. When pressure is reduced, the gas or SCF vaporizes and leaves the additive embedded in the fiber interstices. As a result, the additive is slowly released over a finite period of time. When incorporated into a cigarette filter, the additive is released at a desired rate from the interior of the fibrous filter into the cigarette smoke.

    摘要翻译: 适于掺入烟草制品如香烟的过滤元件的纤维材料用添加剂和试剂(例如调味剂,调味剂增强剂和/或自由基清除剂)浸渍。 纤维材料与分散在保持在高压下的高压气体或超临界流体(SCF)中的添加剂接触。 高压气体或SCF使纤维基体膨胀,并使添加剂能够并入基体内。 当压力降低时,气体或SCF蒸发并留下嵌入在纤维间隙中的添加剂。 结果,添加剂在有限的时间内缓慢释放。 当并入香烟过滤嘴中时,添加剂以纤维过滤器内部以香烟烟雾的期望速率释放。

    Process for treating textile substrates
    8.
    发明授权
    Process for treating textile substrates 失效
    处理织物基材的方法

    公开(公告)号:US06676710B2

    公开(公告)日:2004-01-13

    申请号:US09729566

    申请日:2000-12-04

    IPC分类号: D06M102

    摘要: A process for treating a textile substrate, the process including the steps of providing a textile substrate; providing a treatment bath; entraining a transport material in the treatment bath wherein the transport material further comprises a treatment material dissolved or suspended therein and wherein the transport material is substantially immiscible with the treatment bath; and contacting the textile substrate with the transport material in the treatment bath to thereby treat the textile substrate with the treatment material in the transport material.

    摘要翻译: 一种处理纺织基材的方法,该方法包括以下步骤:提供织物基材; 提供治疗浴; 在处理浴中携带运输材料,其中运输材料还包括溶解或悬浮在其中的处理材料,并且其中运输材料与处理浴基本上不混溶; 以及使所述纺织品基材与所述处理浴中的所述运输材料接触,从而在所述运输材料中用所述处理材料处理所述纺织品基材。

    Method for introducing dyes and other chemicals into a textile treatment system
    9.
    发明授权
    Method for introducing dyes and other chemicals into a textile treatment system 失效
    将染料和其他化学品引入纺织品处理系统的方法

    公开(公告)号:US06615620B2

    公开(公告)日:2003-09-09

    申请号:US09888924

    申请日:2001-06-25

    IPC分类号: D06F3700

    摘要: A process for introducing a textile treatment material into a textile treatment system, particularly a supercritical fluid carbon dioxide (SCF—CO2) treatment system. The process includes the steps of providing a preparation vessel in fluid communication with a textile treatment system; loading a textile treatment material into the preparation vessel; dissolving or suspending the textile treatment material in near-critical liquid carbon dioxide or supercritical fluid carbon dioxide in the preparation vessel; and introducing the dissolved or suspended textile treatment material into the textile treatment system. The textile treatment material can be selected from a group including a brightening agent, a whitening agent and a dye. A system suitable for use in carrying out the process is also disclosed.

    摘要翻译: 将织物处理材料引入织物处理系统,特别是超临界流体二氧化碳(SCF-CO 2)处理系统中的方法。 该方法包括提供与织物处理系统流体连通的制备容器的步骤; 将纺织品处理材料装入制备容器中; 将纺织品处理材料溶解或悬浮在制备容器中的临界液体二氧化碳或超临界流体二氧化碳中; 并将溶解或悬浮的纺织品处理材料引入纺织品处理系统中。 纺织品处理材料可以选自增白剂,增白剂和染料中的组合。 还公开了适用于执行该方法的系统。