Copolyester film and a method for production thereof
    3.
    发明授权
    Copolyester film and a method for production thereof 失效
    共聚酯膜及其制备方法

    公开(公告)号:US4725483A

    公开(公告)日:1988-02-16

    申请号:US865969

    申请日:1986-05-22

    摘要: A copolyester film is disclosed which comprises a copolyester in which the dicarboxylic acid component comprises 100 to 85 mole percent of terephthalic acid and the diol component comprises 65 to 97 mole percent of 1,4-butanediol and 3 to 35 mole percent of a polyethylene glycol with a molecular weight of 106 to 550. The copolyester has a reduced viscosity in the range of 0.8 to 1.4 dl/g as measured at a concentration of 0.5 g/dl in a 1:1 (by weight) solvent mixture of phenol and tetrachloroethane at 30.degree. C. The copolyester has a main endothermic peak with a peak maximum temperature of 160.degree. C. to 200.degree. C. and at least one subsidiary endothermic peak with a peak maximum temperature of 30.degree. C. to 80.degree. C. in differential scanning calorimetry with the ratio (R) of the area occupying not less than 40.degree. C. in the subsidiary endothermic peak, the main endothermic peak area being within the range of 3 percent to 20 percent.A hot melt adhesive comprising the copolyester film and a method for producing the copolyester film are also disclosed. The hot melt adhesive has a high initial modulus of elasticity at high temperature (30.degree.-50.degree. C.) and features improved processability or workability while retaining the required properties of a hot melt adhesive.

    摘要翻译: 公开了一种共聚酯膜,其包含共聚酯,其中二羧酸组分包含100至85摩尔%的对苯二甲酸,并且二醇组分包含65至97摩尔%的1,4-丁二醇和3至35摩尔%的聚乙二醇 分子量为106至550.共聚酯的浓度为0.5至1.4dl / g,浓度为0.5g / dl,苯酚和四氯乙烷的1:1(重量)溶剂混合物中的比浓粘度 共聚多酯具有主峰吸收峰,最高峰最高温度为160℃至200℃,至少一个辅助吸热峰的峰值最高温度为30℃至80℃。 差示扫描量热法在辅助吸热峰中占据不小于40℃的面积比(R),主吸热峰面积在3%至20%的范围内。 还公开了包含共聚酯膜的热熔粘合剂和共聚酯膜的制备方法。 热熔粘合剂在高温(30℃-50℃)下具有高的初始弹性模量,并且具有改进的加工性或加工性,同时保持热熔粘合剂所需的性能。

    Chemical substance measuring apparatus
    4.
    发明授权
    Chemical substance measuring apparatus 失效
    化学物质测量仪器

    公开(公告)号:US4568444A

    公开(公告)日:1986-02-04

    申请号:US724641

    申请日:1985-04-18

    CPC分类号: G01N27/4035

    摘要: An apparatus for measuring the quantities of chemical substances contained in a solution to be assayed by using a chemical-substance sensitive sensor consists of a potentiometric electrode which responds selectively to chemical substances, and a liquid-junction type reference electrode including a tube, a porous thread member housed in the front end opening of the tube and having a pore capacity of 0.2 cc/g or more and at least the surface of which is hydrophilic, a silver-silver chloride wire is provided and housed in the tube so that at one end of the wire is in contact with the thread member and the wire which extends along the tube. The wire is connected to a connector at the other end opening of the tube, an electrical insulating resin fills said tube, at least at the front end portion thereof, for fixing both the silver-silver chloride wire and the thread member by contact therewith and for stopping said tube. An internal solution is retained by suction in said porous thread member. This apparatus is advantageously used for monitoring the living body and may be thermally sterilized.

    摘要翻译: 用于测量通过使用化学物质敏感传感器测定的溶液中所含的化学物质的量的装置由选择性地对化学物质作出响应的电位电极和包括管的液体接合型参比电极,多孔 螺纹构件容纳在管的前端开口中,孔容量为0.2cc / g以上,至少其表面为亲水性,银 - 氯化银线被提供并容纳在管中,使得在一个 线的端部与螺纹构件和沿着管延伸的线接触。 导线连接到管的另一端开口处的连接器,电绝缘树脂至少在其前端部填充所述管,用于通过与其接触固定银 - 氯化银线和线构件, 用于停止所述管。 内部溶液通过吸力保持在所述多孔螺纹构件中。 该装置有利地用于监测生物体并且可以被热灭菌。