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    • 2. 发明授权
    • Polyester resin for toner, process for its production and toner
    • 用于调色剂的聚酯树脂,其生产工艺和调色剂
    • US5807654A
    • 1998-09-15
    • US605074
    • 1996-03-12
    • Shinji KuboNoriyuki TajiriHitoshi IwasakiYoichi Nagai
    • Shinji KuboNoriyuki TajiriHitoshi IwasakiYoichi Nagai
    • C08G63/195C08G63/20C08G63/672G03G9/087G03G9/097
    • G03G9/08755C08G63/195C08G63/672G03G9/09733C08G63/20
    • A polyester resin for toner comprising an acid component containing at least one selected from the group consisting of aromatic dicarboxylic acids and their lower alkyl esters, and an alcohol component containing at least one selected from the group consisting of bisphenol A derivative diols, wherein the content of aldehyde compounds, their decomposition products and by-products in the polyester resin is no more than 200 ppm. Toner polyester resins and toners are obtained which do not generate irritating odors even upon melting and kneading during the toner production or upon heating during the copying process, which provide clear images with no haziness due to reduced light permeability of the copy material, which have a wide range of color tone reproduction, and which provide excellent image precision on copied print.
    • PCT No.PCT / JP95 / 01395 Sec。 371日期:1996年3月12日 102(e)1996年3月12日PCT PCT 1995年7月12日PCT公布。 出版物WO96 / 02870 日期1996年2月1日一种用于调色剂的聚酯树脂,其包含含有选自芳族二羧酸及其低级烷基酯中的至少一种的酸成分,以及含有选自双酚A衍生物 二醇,其中在聚酯树脂中醛化合物,其分解产物和副产物的含量不超过200ppm。 得到调色剂聚酯树脂和调色剂,其即使在调色剂生产期间的熔融和捏合或复印过程中加热时也不会产生刺激性气味,这提供了由于复印材料的透光性降低而提供清晰的图像而不发生混浊, 宽范围的色调再现,并且在复印上提供出色的图像精度。
    • 6. 发明授权
    • Method for producing silver salt of organic acid and photothermographic material utilizing the same
    • 利用该有机酸的银盐和光热敏成像材料的制造方法
    • US06630293B1
    • 2003-10-07
    • US09692718
    • 2000-10-20
    • Koichi KunoNaoyuki KawanishiYoichi Nagai
    • Koichi KunoNaoyuki KawanishiYoichi Nagai
    • G03C1005
    • C07C51/412G03C1/49809
    • A method for producing a silver salt of an organic acid, which comprises steps of reacting (1) a solution containing silver ions in water or in a mixture of an organic solvent and water, with (2) a solution or suspension containing an alkali metal salt of an organic acid in water, in a mixture of an organic solvent and water, or in an organic solvent to prepare a silver salt of an organic acid, and removing a byproduct salt by a desalting operation, wherein a dispersing agent having a molecular weight of 3000 or less is added and dispersed during a time period of from before the reaction to before the desalting operation. There is provided a method for producing a silver salt of an organic acid, which can provides low fog, high sensitivity and high concentration of blackening when it is used for photothermographic materials, and is suitable for the production of photothermographic materials having low haze and less image degradation after storage.
    • 一种制备有机酸的银盐的方法,包括以下步骤:(1)含有银离子在水中或有机溶剂与水的混合物中的溶液与(2)含有碱金属的溶液或悬浮液 有机酸的水溶液,有机溶剂和水的混合物或有机溶剂中的盐,以制备有机酸的银盐,并通过脱盐操作除去副产物盐,其中分子 在反应之前到脱盐操作之前的时间段内加入并分散3000重量%以下的重量。 提供了一种生产有机酸的银盐的方法,其用于光热敏成像材料时可以提供低雾度,高灵敏度和高浓度的黑化,并且适用于生产具有低雾度和更少的光热敏成像材料 存储后的图像劣化。