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    • 4. 发明申请
    • FORMALDEHYDE FREE BINDER AND MULTI-COMPONENT NANOPARTICLE
    • 甲醛自由键和多组分纳米颗粒
    • US20160297983A1
    • 2016-10-13
    • US15100512
    • 2013-12-05
    • ECOSYNTHETIX LTD.
    • Uttam Kumar SAHASteven BLOEMBERGEN
    • C09D103/02C09D161/02
    • C09D103/02B29B7/38B29B7/46B29B7/90C08B31/003C09D161/02C09J103/02D04H1/587D04H1/64
    • This patent describes formaldehyde free or formaldehyde reduced binders useful, for example, in a fiber based composite material such as glass or other mineral fiber insulation, non-woven fabric or wood-based board. In one example, melamine is used as an acidic solution or a salt. The salt or solution is used to create an aqueous binder with other components such as a polyol and a crosslinker. A preferred polyol is a nanoparticle comprising high molecular weight starch. In other examples, binders include mixtures of a polyol with urea and a crosslinker. In other examples, a multi-component nanoparticle is made by reacting a polyol such as starch in an extruder with an insolubilizer such as melamine or urea. The resulting particles are mixed with water, optionally with other components such as an additional crosslinker, to create an aqueous binder.
    • 该专利描述了无甲醛或甲醛还原的粘合剂,其可用于例如基于纤维的复合材料如玻璃或其它矿物纤维绝缘体,无纺织物或木基板。 在一个实例中,三聚氰胺用作酸性溶液或盐。 盐或溶液用于产生具有其它组分如多元醇和交联剂的水性粘合剂。 优选的多元醇是包含高分子量淀粉的纳米颗粒。 在其它实例中,粘合剂包括多元醇与脲和交联剂的混合物。 在其它实例中,多组分纳米颗粒通过使挤出机中的多元醇如淀粉与不分散剂如三聚氰胺或尿素反应来制备。 所得颗粒与水,任选地与其它组分例如另外的交联剂混合,以产生水性粘合剂。