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    • 7. 发明授权
    • Polyacrylate-polyphosphonic acid treatment in aqueous systems
    • 水性体系中的聚丙烯酸酯 - 多膦酸处理
    • US3890228A
    • 1975-06-17
    • US35087573
    • 1973-04-13
    • CHEMED CORP
    • HWA CHIH MINGCUISIA DIONISIO GUERREROGRAY JOHN ALLEN
    • C02F5/14C23F11/08C02B5/06
    • C02F5/14C23F11/08
    • The invention disclosed relates to the use of combinations of polyacrylates and polymethacrylates with organo-phosphonic acids for the treatment of aqueous systems. The organo-phosphonic acid compounds include alkylene and hydroxy alkylene polyphosphonic acids, and water-soluble salts thereof. The polyacrylic compounds may be polyacrylic acid, polymethacrylic acid, or water-soluble salts thereof. In the operation of boilers for the production of steam, in the operation of evaporators for the production of distilled water, and in the operation of water cooling equipment for various purposes, deposits of the carbonate, phosphate, or sulfate of calcium, and deposits containing insoluble magnesium salts or iron compounds etc., may be formed due to the chemistry of the water, and the presence of high temperatures on the heat transfer surfaces. The formation of such deposits can be controlled and substantially prevented by the use of the combinations covered by this patent in dosages ranging from fractions of a part per million up to 200 parts per million. The ratio of polymer to phosphonate may vary from about five to one to one to five.
    • 所公开的本发明涉及聚丙烯酸酯和聚甲基丙烯酸酯与有机膦酸的组合用于处理含水体系的用途。 有机膦酸化合物包括亚烷基和羟基亚烷基多膦酸,及其水溶性盐。 聚丙烯酸类化合物可以是聚丙烯酸,聚甲基丙烯酸或其水溶性盐。
    • 8. 发明授权
    • Method of manufacturing a reinforced examination gown
    • 制造加强检查的方法
    • US3861974A
    • 1975-01-21
    • US34080073
    • 1973-03-13
    • CHEMED CORP
    • TROMBLY MICHAEL ECOWEN SAMUEL H
    • A41D13/12A41H42/00B32B7/14
    • A41H42/00A41D13/1236Y10T156/1008Y10T156/1015Y10T156/1049Y10T156/1051Y10T156/1084
    • The invention disclosed is for a method and apparatus wherein means are provided for continuously inserting a reinforcing strip between tissue layers, after which the lamination may be embossed if desired. Next, the lamination is folded along the width such that a W configuration results with the reinforcing strip disposed about the central peak of the folded W. After the folding step, adhesive is intermittently applied along a line between the legs of the fold forming the folded W. Intermittent application of adhesive may be achieved by providing take-up stations before and after the adhesive application station. Following the application of adhesive, gown patterns are continuously cut into the folded W after which removal of remaining cut sections is effected. The prepared gowns are then packaged for shipment for ultimate use by the consumer.
    • 所公开的本发明涉及一种方法和装置,其中提供了用于在组织层之间连续地插入加强条的装置,之后如果需要可以压花。 接下来,层叠沿着宽度折叠,使得W形状的结果是围绕折叠的W的中心峰设置的加强条。在折叠步骤之后,粘合剂沿着折叠的腿之间的线间歇地施加,形成折叠的 粘合剂的间歇施加可以通过在粘合剂施加站之前和之后提供卷取站来实现。 在施加粘合剂之后,将连续的图案连续地切割成折叠的W,然后进行剩余切割部分的去除。 然后将准备好的礼服包装以供运输,以供消费者最终使用。