Catheter distal end assemblies with bonded surface coatings
    63.
    发明授权
    Catheter distal end assemblies with bonded surface coatings 有权
    导管远端组件与粘合表面涂层

    公开(公告)号:US06256525B1

    公开(公告)日:2001-07-03

    申请号:US09573447

    申请日:2000-05-16

    Abstract: Invasive medical catheters with distal end assemblies having a protective surface coating bonded thereto are constructed by applying a hydrophilic primer to at least a portion of a tubular polymer body. The primer coating chemically bonds to the polymer substrate by developing covalent bonding or cross linking with the substrate. A plurality of printed electrode elements are then formed on the polymer body, e.g., by a pad printing process. Once the primer coating is bonded to the polymer body, the assembly is coated with a regenerated cellulose layer, e.g., by a viscose process well known in the art. The primer coating, already bonded to the catheter body, is then bonded with the regenerated cellulose at an elevated temperature. After curing, the polymer body, primer coating and regenerated cellulose layer become a single composite material, thereby preventing the regenerated cellulose coating from any movement relative to the polymer body, and providing a secure protective layer over the electrodes.

    Abstract translation: 具有与其结合的保护性表面涂层的具有远端组件的入侵医疗导管通过将亲水性底漆施加到管状聚合物主体的至少一部分来构造。 底漆涂层通过发展共价键或与基底交联而与聚合物基底化学键合。 然后,例如通过移印技术,在聚合物主体上形成多个印刷电极元件。 一旦底漆涂层结合到聚合物体上,组合物就被再生纤维素层涂覆,例如通过本领域熟知的粘胶工艺。 已经结合到导管主体上的底漆涂层然后在升高的温度下与再生纤维素粘合。 固化后,聚合物主体,底漆涂层和再生纤维素层变成单一的复合材料,从而防止再生的纤维素涂层相对于聚合物体的任何运动,并且在电极上提供可靠的保护层。

    Process for the production of shaped structures of cellulose
    65.
    发明授权
    Process for the production of shaped structures of cellulose 失效
    生产纤维素成形结构的方法

    公开(公告)号:US5549861A

    公开(公告)日:1996-08-27

    申请号:US387332

    申请日:1995-02-13

    CPC classification number: D01F2/28 C08B16/00 C08L1/06 D06M11/38

    Abstract: A process for the production of shaped structures of cellulose, in particular fibers of cellulose, by shaping and subsequent regeneration of water-soluble cellulose derivatives is described. The process employs water-soluble alcohols, water-soluble ketones or, in particular, water or mixtures thereof as solvents for the shaping and carrying out the shaping by a dry shaping process.

    Abstract translation: 描述了通过水溶性纤维素衍生物的成形和随后的再生生产纤维素的成形结构,特别是纤维素纤维的方法。 该方法使用水溶性醇,水溶性酮或特别是水或其混合物作为溶剂,用于通过干燥成型方法成型和进行成型。

    Edible body and process for preparation thereof
    67.
    发明授权
    Edible body and process for preparation thereof 失效
    食用体及其制备方法

    公开(公告)号:US4994285A

    公开(公告)日:1991-02-19

    申请号:US243306

    申请日:1988-08-08

    CPC classification number: C08L1/06 A23L33/24 Y10S426/802 Y10S426/803

    Abstract: An edible body composed of a cellulose having a crystal form of cellulose II, which is regenerated from an aqueous solution of an alkali metal hydroxide, and at least one guest component selected from polypeptides and edible polysaccharides. The cellulose II or a homogeneous mixture of the cellulose II and polysaccharide is present in the form of a sea component or a continuous phase in an amount of at least 10% based on the edible body. The edible body is made by adding at least one guest component selected from polypeptides, polysaccharides and living body constituents composed mainly thereof to an alkali solution in which up to 50 parts by weight of an undissolved cellulose is swollen and dispersed per 100 parts by weight of a dissolved cellulose, directly or after dissolution in an aqueous solution of an alkali, to form a dope in which at least 50% by weight of the total guest component is dissolved, extruding the dope through an extruder, coagulating the extrudate, and neutralizing, water-washing and, if necessary, drying the extrudate.

    Abstract translation: PCT No.PCT / JP86 / 00535 Sec。 371日期1988年8月8日第 102(e)日期1988年8月8日PCT提交1986年10月22日PCT公布。 出版物WO88 / 02991 日期:1988年5月5日。一种由碱金属氢氧化物水溶液再生的具有纤维素II结晶形式的纤维素的组合物和至少一种选自多肽和食用多糖的客体成分。 纤维素II或纤维素II和多糖的均匀混合物以海成分或连续相的形式存在,其量相对于食用体为至少10%。 通过将至少一种选自多肽,多糖和主要成分的生物体成分的客体成分添加至碱溶液中,至少含有50重量份的未溶解的纤维素溶胀并分散,每100重量份的 溶解的纤维素,直接或溶解在碱的水溶液中,形成其中溶解总客体成分的至少50重量%的涂料,通过挤出机挤出纺丝液,使挤出物凝结,中和, 水洗,如果需要,干燥挤出物。

    Shaped article comprising a permanently plasticized cellulose
composition and preparation thereof
    69.
    发明授权
    Shaped article comprising a permanently plasticized cellulose composition and preparation thereof 失效
    成型制品包括永久增塑的纤维素组合物及其制备

    公开(公告)号:US4198325A

    公开(公告)日:1980-04-15

    申请号:US856033

    申请日:1977-11-30

    Abstract: A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition of high mechanical strength which is obtained by treating a plasticized cellulose composition obtained by treating cellulose hydrate with a plasticity-enhancing amount of at least one plasticizing alkyl-derivative which comprises an alkyl containing from about 8 to about 24 carbon atoms and which is selected from the group consisting of alkylamido-bis-dimethylene-triazinone-tetra-methylol, alkylamino-bis-dimethylene-triazinone-tetra-methylol and a substantially water insoluble ester of an aliphatic monocarboxylic acid containing from about 9 to about 25 carbon atoms and a polyalcohol, such as glycerol or polyethylene glycol, with a synthetic polymer containing recurring oxyalkylene units and at least one, preferably at least two, terminal N-methylolcarbamate groups, and water and/or plasticizer.Such shaped articles can be prepared by mixing a viscose solution with a liquid containing the plasticizing alkyl derivative, introducing the resulting mixture into a precipitating bath, washing the precipitated shaped body in the gel state, treating it with an acidic solution of the synthetic polymer and drying it in the heat. Tube shaped articles are especially suited as sausage casings.

    Abstract translation: 公开了一种成形制品,特别是管材,其包括具有高机械强度的增塑纤维素水合物组合物,其通过处理通过用可塑性增强量的至少一种增塑烷基衍生物处理纤维素水合物而获得的增塑纤维素组合物获得, 包括含有约8至约24个碳原子的烷基,其选自烷基酰氨基 - 双 - 二亚甲基 - 三嗪酮 - 四羟甲基,烷基氨基 - 双 - 二亚甲基 - 三嗪酮 - 四羟甲基和基本上不溶于水的酯 含有约9至约25个碳原子的脂族单羧酸和多元醇如甘油或聚乙二醇与含有重复氧化烯单元的合成聚合物和至少一个,优选至少两个末端N-羟甲基氨基甲酸酯基团,和 水和/或增塑剂。 这种成形制品可以通过将粘胶溶液与含有增塑烷基衍生物的液体混合来制备,将所得混合物引入沉淀浴中,以凝胶状态洗涤沉淀的成形体,用合成聚合物的酸性溶液处理, 在热中干燥。 管状物品特别适合作为香肠肠衣。

    Process for producing phosphazene fire retardant and product
    70.
    发明授权
    Process for producing phosphazene fire retardant and product 失效
    磷腈阻燃剂和产品的生产工艺

    公开(公告)号:US3974242A

    公开(公告)日:1976-08-10

    申请号:US529760

    申请日:1974-12-05

    CPC classification number: C08G79/025 C08L1/06

    Abstract: A process for producing fire retardant phosphonitrilate polymers by reacting phosphonitrilic halide with a hydroxyl compound such as an aliphatic or aromatic alcohol at not more than about 40.degree.C in the presence of an acid acceptor, such as pyridine, under conditions such that a relatively low concentration of the hydroxyl compound is present during the initial 1/2 to 3 hours of the reaction and the reaction conditions are maintained at from 20.degree.-50.degree.C for a period of 1/2 to 120 hours and, optionally, further heating the reaction mixture to a temperature of 40.degree.-80.degree.C for 1/2 to 81/2 hours. The phosphonitrilate polymers are suitable for fire retarding cellulosic materials such as regenerated cellulose, rayon and the like.

    Abstract translation: 在酸性受体例如吡啶的存在下,使膦酰氯与羟基化合物如脂族或芳族醇反应,在不高于约40℃的条件下,使相对较低的 羟基化合物的浓度在反应的初始1/2至3小时期间存在,并且反应条件在20-50℃保持1/2至120小时,并且任选地进一步加热 反应混合物在40〜80℃的温度下进行1/2〜81/2小时。 膦酰基丙酸酯聚合物适用于阻燃纤维素材料如再生纤维素,人造丝等。

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