Water-absorbent resin and production process therefor
    12.
    发明授权
    Water-absorbent resin and production process therefor 有权
    吸水树脂及其生产工艺

    公开(公告)号:US06720389B2

    公开(公告)日:2004-04-13

    申请号:US09945812

    申请日:2001-09-05

    IPC分类号: C08J324

    摘要: In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.

    摘要翻译: 在吸水性树脂的制造方法中,包括以下步骤:将液体材料和吸水性树脂混合; 并加热得到的混合物以制备改性吸水性树脂,本发明提供一种从工业上有利地均匀有效地处理吸水性树脂的方法,结果是良好平衡 具有各种优异性能的吸水性树脂,这种无负载的吸收能力,负载下的吸收能力以及在与水性液体接触的负荷下的单层吸收能力。 制备方法包括用配有喷嘴(C)的混合装置将吸水性树脂(A)和液体材料(B)喷雾共混的步骤,其中液体材料(B)从喷雾 喷嘴(C)及其喷射图案是圆形和中空圆锥形或双凸透镜和椭圆锥形。 此外,制造方法包括在露点不高于60℃,温度不低于90℃的气氛下对吸水性树脂进行热处理的步骤,其中吸水剂 在粉碎步骤之后的干燥步骤之后获得树脂。

    Rubber products with low heat build up on mechanical stressing
    13.
    发明授权
    Rubber products with low heat build up on mechanical stressing 失效
    机械应力低的橡胶制品产生低热量

    公开(公告)号:US06686418B2

    公开(公告)日:2004-02-03

    申请号:US09862935

    申请日:2001-05-22

    IPC分类号: C08J324

    CPC分类号: C08L21/00 C08L2666/16

    摘要: A process for reducing the heat evolution on dynamic stressing of vulcanised rubber products, using for this purpose, in vulcanizable rubber mixtures, mixtures made from non-selfcuring novolaks A and from unetherified or partially etherified triazine resins B, as a combination of reinforcing resin and curing agent.

    摘要翻译: 一种降低硫化橡胶制品的动态应力放热的方法,用于此目的,在可硫化的橡胶混合物中,由非自固化酚醛清漆A制成的混合物和未醚化或部分醚化的三嗪树脂B作为增强树脂和 固化剂。