Formaldehyde-free binder for mouldings
    32.
    发明授权
    Formaldehyde-free binder for mouldings 有权
    用于模塑的无甲醛粘合剂

    公开(公告)号:US6099773A

    公开(公告)日:2000-08-08

    申请号:US101805

    申请日:1998-08-21

    摘要: A method for forming shaped products by mixing a formaldehyde-free aqueous binder comprising A) a free-radically polymerized polymer containing from 5 to 100% by weight of units derived from an ethylenically unsaturated acid anhydride or from an ethylenically unsaturated dicarboxylic acid whose carboxyl group can form an anhydride group, and B) an alkanolamine having at least two hydroxyl groups, with fibers or chips to form a shaped article, wherein said binder has a property of drying at 50.degree. C. in 72 hours to a film from 0.3 to 1 mm in thickness and, following a subsequent 15 minute cure at 130.degree. C. in air, has a gel content of above 50% by weight, wherein the binder includes less than 0.1% by weight, based on A)+B), of a phosphorus-containing reaction accelerant with fibers or chips.

    摘要翻译: PCT No.PCT / EP97 / 00768 Sec。 371日期1998年8月21日 102(e)1998年8月21日PCT PCT 1997年2月19日PCT公布。 公开号WO97 / 31059 日本1997年8月28日一种通过混合不含甲醛的水性粘合剂形成成形制品的方法,其包括A)含有5至100重量%衍生自烯属不饱和酸酐或烯属不饱和酸酐的单元的自由基聚合的聚合物 羧酸可以形成酸酐基的二羧酸,以及B)具有至少两个羟基的链烷醇胺与纤维或碎片形成成型制品,其中所述粘合剂具有在72℃下在72℃下干燥的性质, 厚度为0.3〜1mm的薄膜,然后在130℃下在空气中固化15分钟后,凝胶含量在50%(重量)以上,其中粘合剂的含量小于0.1%(重量),基于A )+ B),含有纤维或芯片的含磷反应促进剂。