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    • 53. 发明授权
    • Leakage control system for treatment of moving webs
    • 用于处理移动腹板的泄漏控制系统
    • US06280573B1
    • 2001-08-28
    • US09133064
    • 1998-08-12
    • Jeffrey Dean LindsayMichael Alan HermansFrank Stephen Hada
    • Jeffrey Dean LindsayMichael Alan HermansFrank Stephen Hada
    • D21F300
    • D21F5/18D21F1/48D21F3/0272
    • Pressurized web treatment systems include a moving web that passes through a pressurized treatment chamber having a sealing assembly with a leakage control system. Leakage control is achieved by the cooperative effect of localized leak detectors and leak reduction means that applies a local sealing force on the seal assembly responsive to a signal from the leak detectors such that increased sealing occurs in the vicinity of the leak. In particular, an air press for paper web dewatering has improved efficiency by virtue of the leakage control system, which features local leak detectors and local force generation means associated with a flexible seal assembly to reduce leakage at the edges of the stationary plenum of the air press. Local leak detection can be based on sonic measurement with microphones, detection of escaping tracer gas, optical signals, and other means. Other embodiments of web treatment systems include those for continuous production of activated carbon fabrics and steam and chemical treatment of textiles and other fibrous webs.
    • 加压网处理系统包括通过具有泄漏控制系统的具有密封组件的加压处理室的移动网。 通过局部泄漏检测器和泄漏减少装置的协同效应来实现泄漏控制,泄漏检测器和泄漏减小装置响应于来自泄漏检测器的信号对密封组件施加局部密封力,使得在泄漏附近发生增加的密封。 特别地,用于纸幅脱水的空气压榨机通过泄漏控制系统提高了效率,泄漏控制系统具有局部泄漏检测器和与柔性密封组件相关联的局部力产生装置,以减少空气的固定气室的边缘处的泄漏 按。 本地泄漏检测可以基于用麦克风进行声波测量,检测出示踪气体,光信号等手段。 网处理系统的其它实施例包括用于连续生产活性炭织物和蒸汽的那些实施方案,以及织物和其它纤维网的化学处理。
    • 59. 发明授权
    • Method for improved wet strength paper
    • 湿强纸改良方法
    • US5935383A
    • 1999-08-10
    • US36106
    • 1998-03-06
    • Tong SunJeffrey Dean Lindsay
    • Tong SunJeffrey Dean Lindsay
    • D21H17/03D21H17/07D21H17/09D21H17/54D21H21/20D21H23/10D21H23/76
    • D21H23/10D21H21/20D21H17/07D21H17/09D21H17/54D21H23/765
    • The invention is a method for improving the efficiency of aqueous cationic wet strength additives by pretreating cellulose surfaces with reactive anionic compounds, thus providing the cellulose surface with additional anionic sites suitable for retaining a high proportion of said cationic wet strength additives on the cellulose. The wet strength additives on the cellulose surface are cured or reacted with the cellulose surface. The resulting fibrous material has unusually high wet strength with unusually low doses of cationic wet strength additive. The preferred reactive anionic compounds comprise compounds having a reactive group suitable for covalent bonding to hydroxyl groups on cellulose, and further having sulfonic or other anionic end groups capable of attracting cationic wet strength compounds in aqueous solution. The invention also includes means of preventing photoyellowing of high-yield fibers while simultaneously improving wet strength performance.
    • 本发明是通过用活性阴离子化合物预处理纤维素表面来提高水性阳离子湿强度添加剂的效率的方法,从而为纤维素表面提供了适合于将高比例的所述阳离子湿强度添加剂保留在纤维素上的额外的阴离子位点。 纤维素表面上的湿强度添加剂被固化或与纤维素表面反应。 所得到的纤维材料具有非常高的湿强度,并且具有异常低剂量的阳离子湿强度添加剂。 优选的反应性阴离子化合物包括具有适于与纤维素上的羟基共价结合的反应性基团的化合物,并且还具有能够在水溶液中吸引阳离子湿强度化合物的磺酸或其它阴离子末端基团的化合物。 本发明还包括防止高产纤维的光胶化同时改善湿强度性能的方法。