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    • 1. 发明授权
    • Method for preparing stable aqueous emulsion of phenolic resin
    • 制备酚醛树脂稳定水性乳液的方法
    • US4131582A
    • 1978-12-26
    • US809949
    • 1977-06-24
    • Yuji KakoToyoji KigugaTetsuo Sanuki
    • Yuji KakoToyoji KigugaTetsuo Sanuki
    • C08G8/38C08J3/03C08L61/10C08L61/06
    • C08J3/03C08G8/38C08J2361/00
    • A method is disclosed for preparing a stable aqueous emulsion of a phenolic resin which is characterized by adding polyacrylamides and, if required, further adding dispersing agents to the phenolic resin during or after the completion of a reaction of components which comprise (A) between about five (5) and one hundred (100) parts by weight of one or more phenols, (B) between zero (0) and about ninety-five (95) parts by weight of aldehyde-reactive modifier, and (C) in excess of 0.4 mole of aldehydes based on the total amount of one (1) mole of (A) and (B) described above.Emulsions obtained by the present invention are useful as binders for inorganic materials and organic materials, as compounding ingredients for latex, as emulsion and water paints and so forth; and, furthermore, there are various uses such as grouting agent, reinforcing agent for synthetic rubber, self-hardening binder for foundry sands, raw material of phenolic resin foam, binder for abrasive cloth and paper, and the like.
    • 公开了一种用于制备酚醛树脂的稳定水性乳液的方法,其特征在于加入聚丙烯酰胺,并且如果需要,在组分反应完成期间或之后进一步向酚醛树脂中加入分散剂,所述成分包含(A)在约 五(5)和一百(100)重量份的一种或多种酚,(B)在零(0)至约九十五(95)重量份醛反应性改性剂之间,和(C)过量 的基于上述(A)和(B)的(1)摩尔的总量的0.4摩尔醛。
    • 2. 发明授权
    • Rubber cement compositions
    • 橡胶水泥组合物
    • US4007233A
    • 1977-02-08
    • US519314
    • 1974-10-30
    • Yuji KakoToyoji KikugaAkira Toko
    • Yuji KakoToyoji KikugaAkira Toko
    • C08G8/04C08G8/24C09J109/02C08L61/10C08L61/12
    • C08G8/24C08G8/04C09J109/02Y10T428/31688
    • Rubber cement compositions which consist of rubbers and multi- (three and more) functional phenol-aldehyde modified bifunctional phenol resins, which are made by first obtaining the bifunctional phenolic resin by condensing 1 mole of bifunctional phenol with 0.5 to 3.0 moles of aldehydes in the presence of an alkaline catalyst, and then co-condensing 0.05 to 2.5 moles of multifunctional (three and more) phenols against 1 mol of the bifunctional phenols in the above-mentioned resin in the presence of an acidic catalyst, said co-condensed resin having a number average molecular weight of 700 - 1900, a resin melting point of 80.degree. -160.degree. C, being curable and also being soluble in aromatic hydrocarbon solvents.
    • 由橡胶和多(三种或更多种)功能性酚醛改性双功能酚醛树脂组成的橡胶水泥组合物,其通过首先通过将1摩尔双官能酚与0.5-3.0摩尔醛缩合而获得双功能酚醛树脂 存在碱性催化剂,然后在酸性催化剂的存在下,将上述树脂中的1摩尔的双官能酚与0.05摩尔的多官能(3种以上)酚反应而共缩合,所述共缩合树脂具有 数均分子量为700〜1900,树脂熔点80〜160℃,可固化,也可溶于芳烃溶剂。