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    • 9. 发明授权
    • Inorganic hydrogel flatting agents
    • 无机水凝胶糊剂
    • US5110769A
    • 1992-05-05
    • US604389
    • 1990-10-26
    • William A. WelshStephen R. Schmidt
    • William A. WelshStephen R. Schmidt
    • C09K3/10C01B33/152C01B33/158C09D5/00C09D7/00C09D7/12C09K3/00
    • C09D7/005C01B33/158Y10S423/15
    • An improved flatting agent comprising an inorganic hydrogel having a pore volume of at least 1.0 ml/g, an average particle size in the range 1 to 10 microns, and a particle size distribution such thatt when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale. The inorganic hydrogel flatting agents of this invention are prepared by milling an inorganic hydrogel under controlled temperature conditions wherein a volatiles content of at least 40 weight percnet is maintained, to produce inorganic hydrogel particles characterized by a pore volume of at least 1.0 ml/g, an average particle size in the range of 1 to 10 microns, and a particle size distribution such that when the flatting agent is dispersed in a coating, the fineness of grind is at least 4.75 on the Hegman scale. Also provided in accordance witth this invention are improved coating compositions comprising a full gloss coating containing the above described flatting agents dispersed in the full gloss coating in from 3 to 15 weight percent loading on a solids basis.
    • 一种改进的消光剂,其包含孔体积至少为1.0ml / g,平均粒径在1-10微米范围内的无机水凝胶,以及当平滑剂分散在涂层中时的粒度分布, 研磨的细度在Hegman量表上至少为4.75。 本发明的无机水凝胶消光剂通过在其中保持至少40重量%的挥发物含量的控制温度条件下研磨无机水凝胶来制备,以产生特征在于孔体积至少为1.0ml / g的无机水凝胶颗粒, 平均粒度在1至10微米范围内,并且粒度分布使得当平坦化剂分散在涂层中时,研磨细度在Hegman量级上至少为4.75。 根据本发明还提供了改进的涂料组合物,其包含以固体为基础以3至15重量%的载量分散在全光泽涂层中的上述平光剂的全光泽涂层。
    • 10. 发明授权
    • Jam detector
    • 卡纸检测器
    • US4112379A
    • 1978-09-05
    • US799217
    • 1977-05-23
    • Stephen R. Schmidt
    • Stephen R. Schmidt
    • B41F33/00B65H7/06B65H7/04
    • B65H7/06B41F33/00
    • A system for detecting a jam condition in a series of sequentially moving members which are passing a plurality of stations. The system finds particular application in the production of corrugated board or the like in which at the first station there may be a slitting or slotting or printing drum which is performing an operation on a series of moving corrugated board members. There are detection means at each station and successive signals from one station indicating the presence of a member at that station without a resetting signal from the next sequential station will provide a signal indicative of a jam condition. There are means to prevent a false indication of a jam which can be caused by the absence of a member at the first station in the system.
    • 一种用于检测正在通过多个站的一系列顺序运动的构件中的阻塞状况的系统。 该系统在波纹板等的生产中具有特别的应用,其中在第一站处可以有一个在一系列移动的瓦楞纸板构件上执行操作的切割或开槽或印刷滚筒。 在每个站处有检测装置,并且来自一个站的指示在该站处存在成员而没有来自下一个顺序站的重置信号的连续信号将提供指示卡塞状况的信号。 存在防止由系统中的第一站处的成员不存在而造成的卡纸的错误指示的手段。