Selective polyamide recovery from multi-component materials
    4.
    发明授权
    Selective polyamide recovery from multi-component materials 失效
    从多组分材料中选择性聚酰胺回收

    公开(公告)号:US5889142A

    公开(公告)日:1999-03-30

    申请号:US840977

    申请日:1997-04-21

    摘要: A process for selectively separating polyamides from multi-component waste materials including the steps of subjecting the multi-component mix to a specific mixture of caprolactam and water at a preselected temperature range below the degradation temperature of the polymer to be recovered, separating the formed polyamide solution, and recovering the desired polyamide. The process is very desirable for separating multi-component waste materials which contain not only nylon 6, but also nylon 6,6. The recovered polyamide may be used in molding applications and in fiber such as carpet fiber.

    摘要翻译: 一种用于从多组分废料中选择性分离聚酰胺的方法,包括以下步骤:在低于要回收的聚合物的降解温度的预选温度范围内将多组分混合物进行己内酰胺和水的特定混合物的步骤,分离所形成的聚酰胺 溶液,并回收所需的聚酰胺。 该方法对于分离不仅包含尼龙6,而且包含尼龙6,6的多组分废料是非常理想的。 回收的聚酰胺可用于模制应用和纤维如地毯纤维中。

    Starch derivatives and other derivatives, production processes therefor, and wound healing applications therefor
    7.
    发明申请
    Starch derivatives and other derivatives, production processes therefor, and wound healing applications therefor 有权
    淀粉衍生物和其他衍生物,其生产工艺及其伤口愈合应用

    公开(公告)号:US20060142242A1

    公开(公告)日:2006-06-29

    申请号:US11289646

    申请日:2005-11-30

    IPC分类号: C08B31/02 A61K31/718

    摘要: Novel phosphate starch derivatives are useful in wound healing. Novel phosphorylated cottons are useful in wound healing. Silver-derivatized wound care products are provided which survive washing and remain part of the wound care product. Silver-derivatized wound care products are provided that have favorable elastase-sequestering activity while advantageously appearing white-colored, without needing to darken to grey or black as usually would occur when working with silver. Also, starch products with outstanding water uptake are provided.

    摘要翻译: 新型磷酸盐淀粉衍生物可用于伤口愈合。 新型磷酸化棉花可用于伤口愈合。 提供银衍生的伤口护理产品,其可在洗涤中存活并保留伤口护理产品的一部分。 提供了银衍生的伤口护理产品,其具有有利的弹性蛋白酶封闭活性,同时有利地出现白色,而不需要像使用银时通常会发生的灰色或黑色变暗。 此外,提供了具有优异吸水性的淀粉产品。

    Method for coating nylon-6 for improved thermal stability
    8.
    发明授权
    Method for coating nylon-6 for improved thermal stability 失效
    用于涂覆尼龙-6以提高热稳定性的方法

    公开(公告)号:US4745006A

    公开(公告)日:1988-05-17

    申请号:US102190

    申请日:1987-09-29

    申请人: Yousef Mohajer

    发明人: Yousef Mohajer

    摘要: In a process for the production of heat stabilized nylon-6, hot nylon pellets are directly sprayed with measured quantities of concentrated solutions of copper salts and inorganic halides. For soluble cupric salts, the pellets are sprayed with a first solution comprising the soluble cupric salt and a second solution comprising the halide. Separate solutions are utilized when necessary to avoid precipitation problems. For cuprous salts solubilized in concentrated halide solution, a single solution may be prepared for spraying. Rapid absorption of copper by nylon eliminates precipitation and subsequent loss of the chemicals or discoloration of products.

    摘要翻译: 在制备热稳定尼龙-6的方法中,热量尼龙颗粒直接用测量量的铜盐和无机卤化物的浓缩溶液喷洒。 对于可溶性铜盐,用包含可溶性铜盐的第一溶液和包含卤化物的第二溶液喷射颗粒。 必要时采用单独的解决方案以避免沉淀问题。 对于溶解在浓卤化物溶液中的亚铜盐,可以制备单一溶液用于喷雾。 通过尼龙快速吸收铜可以消除沉淀和随后的化学品损失或产品的变色。

    Tufted fabrics
    10.
    发明授权
    Tufted fabrics 失效
    簇绒织物

    公开(公告)号:US5626912A

    公开(公告)日:1997-05-06

    申请号:US422527

    申请日:1995-04-14

    IPC分类号: D06N7/00 B05D3/02 B05D5/00

    摘要: The present invention relates to a tufted fabric and a method of manufacturing the same. The tufted fabric generally comprises a primary backing and tufts mounted in the primary backing to form a fabric with a faceside having piles and a backside having loops. A thermoplastic polymer adhesive, which bonds the tufts to the primary backing, is formed by applying a reactive mixture comprising a polymerizable monomer to the backside of the tufted fabric and in-situ polymerizing the monomers to form the thermoplastic polymer adhesive. The process is particularly advantageous for the manufacture of recyclable tufted fabrics in which the adhesive polymer and tufts are formed from substantially the same polymer. The tufted fabric can be used in articles, such as, for example carpets, rugs and upholstery.

    摘要翻译: 本发明涉及一种簇绒织物及其制造方法。 簇绒织物通常包括主衬里和安装在主衬里中的簇,以形成具有桩的面的织物,并且具有环的背面。 通过将包含可聚合单体的反应性混合物施加到簇绒织物的背面并原位聚合单体以形成热塑性聚合物粘合剂来形成将簇结合到主衬里的热塑性聚合物粘合剂。 该方法对于可再生簇绒织物的制造特别有利,其中粘合剂聚合物和簇由基本上相同的聚合物形成。 簇绒织物可用于制品中,例如地毯,地毯和室内装潢。