METHOD OF RECYCLING THE WATER FROM A PROCESS FOR MANUFACTURING AN INSULATING MINERAL FIBER BLANKET
    1.
    发明申请
    METHOD OF RECYCLING THE WATER FROM A PROCESS FOR MANUFACTURING AN INSULATING MINERAL FIBER BLANKET 审中-公开
    从制造绝缘矿物纤维布的方法回收水的方法

    公开(公告)号:US20100192636A1

    公开(公告)日:2010-08-05

    申请号:US12667458

    申请日:2008-07-02

    IPC分类号: C02F1/66 C03B37/00 C03B37/07

    摘要: The invention relates to a method of controlling the level of corrosivity of an aqueous solution recovered during a process for producing a blanket of mineral fibers, comprising in particular the fiberizing and the coating of said fibers with a binder comprising a polyacid typically of the acrylic type, said aqueous solution being at least partly recycled into a zone in which said resin is prepared and/or a scrubbing zone of the production plant, said method being characterized in that the pH of the solution in the recycling circuit is maintained between minimum and maximum values by injecting into said circuit an agent for modifying said pH, such as a base, the quantity injected or the flow rate of the pH-modifying agent being adjusted directly according to the quantity or the flow rate of acid binder injected during the fiberizing process.The invention also relates to the device for implementing the method.

    摘要翻译: 本发明涉及一种控制在用于生产无机纤维毯的方法中回收的水溶液的腐蚀性水平的方法,特别地包括所述纤维的纤维化和涂层,所述粘合剂包含通常为丙烯酸类型的多元酸 所述水溶液至少部分地再循环到制备所述树脂的区域和/或所述生产设备的洗涤区域中,所述方法的特征在于,回收回路中的溶液的pH保持在最小和最大值之间 通过在所述回路中注入用于改变所述pH(例如碱)的试剂,注入的量或pH调节剂的流速根据在成纤过程中注入的酸粘合剂的量或流速直接调节 。 本发明还涉及实现该方法的装置。

    Phenolic resin for glue sizing composition, preparation method and glue sizing composition containing same
    2.
    发明授权
    Phenolic resin for glue sizing composition, preparation method and glue sizing composition containing same 有权
    胶浆组合物用酚醛树脂,其制备方法和含有该胶料的上胶组合物

    公开(公告)号:US06342271B1

    公开(公告)日:2002-01-29

    申请号:US09462459

    申请日:2000-04-27

    IPC分类号: B05D302

    CPC分类号: C03C25/34 C03C25/26 C08G14/08

    摘要: The invention relates to a resin composition based on a urea-modified phenol-formaldehyde resole which has a formaldehyde/phenol molar ratio of 2 to 5, exhibiting a free formaldehyde content lower than or equal to 3 percent (by weight relative to the total weight of the composition), a free phenol content lower than or equal to 0.5 percent and a dilutability measured at 20° C., of at least 1000 percent and to a process for the preparation of this composition. This composition is characterized in that it contains an overcondensed resole obtained by the condensation of phenol, of formaldehyde, and optionally of urea in basic medium, until the product has a water dilutability at pH 9 that is lower than or equal to 2000 percent, or the product of neutralization of such as resole. The modification of an overcondensed phenolic resole by neutralization with boric acid according to the invention permits the dilutability of the resole to be increased. An application is for sizing composition s for products based on mineral wool with a reduction in atmospheric pollution upon use.

    摘要翻译: 本发明涉及一种基于尿素改性酚醛树脂的树脂组合物,其具有2至5的甲醛/苯酚摩尔比,其游离甲醛含量低于或等于3%(以总重量计) 的组合物),游离酚含量低于或等于0.5%,并且在20℃下测量的可稀释度为至少1000%,以及制备该组合物的方法。 该组合物的特征在于其含有通过苯酚,甲醛和任选的尿素在碱性介质中缩合获得的过度稠化的甲阶酚醛树脂,直到产物在pH9下具有低于或等于2000%的水稀释度,或 中和的产物如抗坏血酸。 通过根据本发明用硼酸中和来改性过度稠化的酚醛树脂,可以提高甲阶酚醛树脂的稀释性。 一种应用是用于基于矿棉的产品的成分尺寸调整,使用时会降低大气污染。