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1. 发明授权

US4480055A Process for manufacturing modified amino-resin products 失效
标题翻译：制备改性氨基树脂产品的方法
公开(公告)号：US4480055A
公开(公告)日：1984-10-30
申请号：US352721
申请日：1982-02-26
申请人： Heinz Baumann
发明人： Heinz Baumann
IPC分类号： C04B26/12 , C08G14/06 , C08G16/02 , C08L61/34 , C08J9/30
CPC分类号： C08G16/02 , C04B26/12 , C08G14/06 , C08L61/34
摘要： Amino-resin products, which include aminoplast foams, can be modified by reacting an aminoplast precondensate, which contains an excess of formaldehyde or to which supplemental formaldehyde or another lower monoaldehyde or dialdehyde has been added before processing, with a hardening agent or with a solution of hardening agent, surfactant, and foamer in the presence of an additive that consists of one or more mononuclear or binuclear phenols, phenolic ethers, or acenaphthene derivatives with the overall formulas ##STR1## in which X is H, OH, SO.sub.3 H, Cl, CH.sub.3, or C.sub.2 H.sub.5 andR is H or an alkyl radical, with 1 to 9 carbon atoms, at a pH between about 1 and 2, mixed if necessary with aromatic sulphonic acids, at a pH between about 1 and 2. The modified products can be employed wherever free formaldehyde is undesirable.
摘要翻译：包括氨基塑料泡沫的氨基树脂产物可以通过使含有过量甲醛的氨基塑料预缩合物或在加工前添加了另外的低级单醛或二醛的氨基塑料预缩合物与硬化剂或溶液硬化剂，表面活性剂和起泡剂在由一种或多种单核或双核酚，酚醚或苊衍生物组成的添加剂的存在下，具有总体配方，其中X 是H，OH，SO 3 H，Cl，CH 3或C 2 H 5，R是H或具有1至9个碳原子的烷基，在约1和2之间的pH下，如果需要，与芳族磺酸混合，约1和2.改性产物可用于不需要游离甲醛的地方。

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