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    • 1. 发明授权
    • Secondary suspending agent for suspension polymerization of vinyl
compound
    • 乙烯基化合物悬浮聚合用二次悬浮剂
    • US5308911A
    • 1994-05-03
    • US28181
    • 1993-03-09
    • Shigeki TakadaHitoshi MaruyamaNaoki FujiwaraKazutoshi Terada
    • Shigeki TakadaHitoshi MaruyamaNaoki FujiwaraKazutoshi Terada
    • C08F2/20C08F14/06C08L29/04C08F2/00
    • C08F2/20C08F14/06
    • There are disclosed a secondary suspending agent for suspension polymerization of a vinyl compound (vinyl chloride, etc.) which comprises an aqueous dispersion comprising as the dispersoid, a polyvinyl ester having a degree of hydrolysis of 60 mol% or less, an average degree of polymerization of 4000 or more and an average particle diameter of 100 .mu.m or less; a suspension stabilizing agent comprising 5 to 70% by weight of the secondary suspending agent (PVA, etc.) and 30 to 95% by weight of a water-soluble high molecular compound having a degree of polymerization of 500 or more, the agent being used for suspension polymerization of a vinyl compound; and a process for producing a vinyl polymer (PVC, etc.) comprising suspension polymerizing a vinyl compound by the use of the above suspension stabilizing agent. Both the agents are well suited for producing vinyl polymer granules enhanced in absorption rate of plasticizer, bulk density, removality of residual monomer and porosity.
    • 公开了一种乙烯基化合物(氯乙烯等)的悬浮聚合用二次悬浮剂,其包含含有分散体的水分散体,水解度为60摩尔%以下的聚乙烯基酯, 聚合4000以上,平均粒径为100μm以下; 包含5〜70重量%的二次悬浮剂(PVA等)和30〜95重量%的聚合度为500以上的水溶性高分子化合物的悬浮稳定剂,试剂为 用于乙烯基化合物的悬浮聚合; 以及包含通过使用上述悬浮稳定剂使乙烯基化合物悬浮聚合的乙烯基聚合物(PVC等)的制造方法。 这两种试剂都非常适合生产提高增塑剂吸收速率,堆积密度,残留单体去除率和孔隙率的乙烯基聚合物颗粒。
    • 3. 发明授权
    • Process for producing vinyl ester polymer and process for producing
vinyl alcohol polymer
    • 制备乙烯基酯聚合物的方法和生产乙烯醇聚合物的方法
    • US5331055A
    • 1994-07-19
    • US928774
    • 1992-08-17
    • Naoki FujiwaraKazutoshi TeradaHitoshi Maruyama
    • Naoki FujiwaraKazutoshi TeradaHitoshi Maruyama
    • C08F2/24C08F8/12C08F263/00C08F2/30
    • C08F263/00C08F8/12C08J5/18
    • There are disclosed a process for producing a vinyl ester polymer having a high degree of polymerization at a high efficiency, which process comprises subjecting a vinyl ester monomer to seed polymerization by the use of a vinyl ester polymer emulsion as a seed emulsion under the conditions in which the charge of a water-soluble initiator per unit volume (1 liter) of reactant liquid charge is 1.times.10.sup.-8 to 2.times.10.sup.-4 mol, and the charge of the water-soluble initiator per one particle of the vinyl ester polymer particles in the seed emulsion is 1.times.10.sup.-28 to 1.times.10.sup.-20 mol, and a process for producing a vinyl alcohol polymer at a high efficiency from the vinyl ester polymer thus obtained.According to these processes of the present invention, both a vinyl ester polymer and vinyl alcohol polymer each having a higher degree of polymerization can be produced with ease on an industrial scale.
    • 公开了一种以高效率生产高聚合度的乙烯基酯聚合物的方法,该方法包括使乙烯基酯单体通过使用乙烯基酯聚合物乳液作为种子乳液进行种子聚合, 其中每单位体积(1升)反应物液体电荷的水溶性引发剂的电荷为1×10 -8至2×10 -4摩尔,并且每1个乙烯基酯聚合物颗粒中的水溶性引发剂的电荷 种子乳液为1×10-28至1×10-20mol,以及由此获得的乙烯基酯聚合物以高效率生产乙烯醇聚合物的方法。 根据本发明的这些方法,可以容易地以工业规模生产各自具有较高聚合度的乙烯基酯聚合物和乙烯醇聚合物。
    • 7. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US07551868B2
    • 2009-06-23
    • US11822821
    • 2007-07-10
    • Kei YasutomiHitoshi MaruyamaReki Nakamura
    • Kei YasutomiHitoshi MaruyamaReki Nakamura
    • G03G15/20
    • G03G15/205G03G15/2028G03G15/6573G03G2215/00805
    • An image forming apparatus is disclosed, including a fixing device and a sheet storing member. The fixing device performs both tentative fixing and regular fixing. In at least one embodiment, the fixing device performs tentative fixing for tentatively fixing a toner image on a recording sheet. Further, the fixing device performs regular fixing for further fixing the tentatively fixed toner image by contacting a gloss sheet onto the tentatively fixed toner image on the recording sheet. The sheet storing member temporarily stores the recording sheet bearing the tentatively fixed toner image before the recording sheet is sent to the fixing device for the further fixing.
    • 公开了一种图像形成装置,包括定影装置和片材存储部件。 固定装置既可以暂时固定也可以进行定期的固定。 在至少一个实施例中,定影装置执行临时定影以暂时将调色剂图像定影在记录纸上。 此外,定影装置执行定期固定,以通过使光泽片接触在记录片材上的临时定影的调色剂图像上来进一步固定暂时定影的调色剂图像。 纸张存储部件临时存储在将记录纸送到定影装置进行进一步固定之前承载临时定影的调色剂图像的记录纸。