Screen printable hydrogel for medical applications
    144.
    发明授权
    Screen printable hydrogel for medical applications 失效
    用于医疗应用的丝网印刷水凝胶

    公开(公告)号:US07105588B2

    公开(公告)日:2006-09-12

    申请号:US10683530

    申请日:2003-10-10

    CPC classification number: C08L33/12 Y10S524/916

    Abstract: The present invention provides a screen printable hydrogel composition comprising: (a) soluble or partially soluble polymer wherein said polymer is a copolymer, interpolymer or mixture thereof; (b) initiation system; (c) thickener; (d) water; and (e) solvent; with the proviso that the composition has a viscosity of greater than about 10 Pa·s.

    Abstract translation: 本发明提供一种可丝网印刷的水凝胶组合物,其包含:(a)可溶或部分可溶的聚合物,其中所述聚合物是共聚物,互聚物或其混合物; (b)启动系统; (c)增稠剂; (d)水; 和(e)溶剂; 条件是组合物的粘度大于约10帕。

    Process for preparing regenerated cellulose article
    147.
    发明授权
    Process for preparing regenerated cellulose article 有权
    制备再生纤维素制品的方法

    公开(公告)号:US6123887A

    公开(公告)日:2000-09-26

    申请号:US175277

    申请日:1998-10-20

    Abstract: A composition containing cellulose formate and a solvent system. At a temperature at least equal to a value T.sub.f the composition is a solution, and at a temperature appreciably less than T.sub.f the composition is an elastic, thermoreversible gel.A process for preparing a regenerated cellulose article by the transformation of this composition. Gel spinning in order to obtain a fibre or a film. A regenerated cellulose fibre having an excellent resistance to fibrillation in particular, wherein the said fibre may be a monofilament fibre.These fibres or these films may be used in textile applications or in technical applications, for example for reinforcing other articles, particularly tires.

    Abstract translation: 含有甲酸纤维素和溶剂体系的组合物。 在至少等于值Tf的温度下,组合物是溶液,并且在明显低于Tf的温度下,组合物是弹性的热可逆凝胶。 通过该组合物的转化制备再生纤维素制品的方法。 凝胶旋转以获得纤维或薄膜。 特别是具有优异的抗颤纤维特性的再生纤维素纤维,其中所述纤维可以是单丝纤维。 这些纤维或这些膜可以用于纺织应用或技术应用中,例如用于加强其它制品,特别是轮胎。

    Organopolysiloxane-grafted polysaccharide compound
    148.
    发明授权
    Organopolysiloxane-grafted polysaccharide compound 有权
    有机聚硅氧烷接枝多糖化合物

    公开(公告)号:US6066727A

    公开(公告)日:2000-05-23

    申请号:US325797

    申请日:1999-06-04

    CPC classification number: A61Q5/06 A61K8/731 C08B11/20 C07B2200/11

    Abstract: Disclosed is a novel method for the preparation of an organo-polysiloxane-grafted polysaccharide compound which is particularly useful as an additive ingredient in various types of cosmetic and toiletry preparations. The method utilizes a reaction between epoxy groups of a diorganopolysiloxane, e.g., dimethylpolysiloxane, terminated at a single molecular chain end with a 2-(3,4-epoxycyclohexyl)ethyl group and carboxyl groups in a carboxyl group-containing polysaccharide compound such as hydroxypropyl methyl cellulose phthalate and hydroxypropyl methyl cellulose acetate succinate dissolved in an organic solvent. The reaction proceeds efficiently without addition of any catalytic compounds almost quantitatively under moderate reaction conditions.

    Abstract translation: 公开了一种制备有机聚硅氧烷接枝多糖化合物的新方法,其特别用作各种类型的化妆品和化妆品制剂中的添加剂成分。 该方法利用二有机基聚硅氧烷,例如在单分子链末端以2-(3,4-环氧环己基)乙基封端的二甲基聚硅氧烷和含羧基的多糖化合物中的羧基(例如羟丙基 甲基纤维素邻苯二甲酸酯和羟丙基甲基纤维素乙酸酯琥珀酸酯溶解在有机溶剂中。 反应在中等反应条件下几乎定量地添加任何催化化合物而有效地进行。

    Biodegradable cellulose ester composition and article
    149.
    发明授权
    Biodegradable cellulose ester composition and article 失效
    可生物降解的纤维素酯组合物和制品

    公开(公告)号:US5609677A

    公开(公告)日:1997-03-11

    申请号:US494284

    申请日:1995-06-23

    Abstract: The composition comprising a cellulose ester including at least 10 weight % of a low-substituted cellulose ester having an average degree of substitution not exceeding 2.15 and giving a 4-week decomposition rate of at least 60 weight % as determined using the amount of evolution of carbon dioxide as an indicator in accordance with ASTM 125209-91. The composition may contains a plasticizer, an aliphatic polyester, a photolysis accelerator such as anatase type titanium dioxide or a biodegradation accelerator such as organic acids and their esters. The low-substituted cellulose ester may be a cellulose ester having an average degree of polymerization from 50 to 250, an average degree of substitution from 1.0 to 2.15 and a residual alkali metal/alkaline earth metal-to-residual sulfuric acid equivalent ratio of 0.1 to 1.1. The biodegradable cellulose ester composition is suitable for the manufacture of various articles including fibrous articles such as tobacco filters.

    Abstract translation: 所述组合物包含纤维素酯,所述纤维素酯包含平均取代度不超过2.15的至少10重量%的低取代的纤维素酯,并且使用如下方法确定的4周分解率为至少60重量% 二氧化碳作为指标符合ASTM 125209-91。 组合物可以含有增塑剂,脂肪族聚酯,光解促进剂如锐钛矿型二氧化钛或生物降解促进剂如有机酸及其酯。 低取代的纤维素酯可以是平均聚合度为50〜250,平均取代度为1.0〜2.15,残留的碱金属/碱土金属与残余硫酸的当量比为0.1的纤维素酯 至1.1。 可生物降解的纤维素酯组合物适用于制造包括诸如烟草过滤器在内的纤维制品的各种制品。

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