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    Process for preparing foundry cores or molds and binder materials used therefor
    2.
    发明授权
    Process for preparing foundry cores or molds and binder materials used therefor 失效
    用于制备铸造芯或模具和粘合剂材料的方法

    公开(公告)号：US4362203A

    公开(公告)日：1982-12-07

    申请号：US248536

    申请日：1981-03-27

    申请人： Susumu Konii ,  Shigeo Sase ,  Masatoshi Yoshida ,  Shoei Kuroda ,  Takeshi Sumi

    发明人： Susumu Konii ,  Shigeo Sase ,  Masatoshi Yoshida ,  Shoei Kuroda ,  Takeshi Sumi

    IPC分类号： C08L61/00 ,  B22C1/10 ,  B22C1/22 ,  C08G8/04 ,  C08K3/22 ,  C08L61/04 ,  C08L61/10 ,  B22C1/18

    CPC分类号： C08G8/04 ,  B22C1/2253 ,  C08K3/22

    摘要： A novel process for preparing foundry cores or molds and binder materials used therefor are provided. The binder materials comprise (a) an alcohol-soluble phenolic resin, (b) a polyvalent metal hydroxide and/or oxide, (c) water, (d) an organic solvent, and (e) an alkali metal hydroxide. They are admixed with refractory particles, such as sand, and cured with carbon dioxide to form shaped foundry cores or molds. The process and materials of the invention bring about such advantages that curing may be performed with safe carbon dioxide, that shaped foundry cores or molds may be taken out from pattern immediately after curing, and that the products have a superior collapsibility after pouring a molten metal.

    摘要翻译： 提供了一种用于制备铸造芯或用于其的模具和粘合剂材料的新颖方法。 粘合剂材料包括（a）醇溶性酚醛树脂，（b）多价金属氢氧化物和/或氧化物，（c）水，（d）有机溶剂和（e）碱金属氢氧化物。 它们与耐火颗粒如砂混合，并用二氧化碳固化以形成成型铸造芯或模具。 本发明的方法和材料带来了这样的优点：固化可以用安全的二氧化碳进行，成型的铸造芯或模具可以在固化后立即从图案中取出，并且产品在浇注熔融金属后具有优异的可收缩性 。

    Novel thermosetting resins and process for preparing the same
    3.
    发明授权
    Novel thermosetting resins and process for preparing the same 失效
    新型热固性树脂及其制备方法

    公开(公告)号：US4055546A

    公开(公告)日：1977-10-25

    申请号：US646671

    申请日：1976-01-05

    申请人： Tzong Jeng Chu ,  Susumu Konii

    发明人： Tzong Jeng Chu ,  Susumu Konii

    IPC分类号： C08G8/28 ,  C08G77/52 ,  C08G79/00 ,  C08G10/04

    CPC分类号： C08G77/52 ,  C08G79/00 ,  C08G8/28

    摘要： A novel thermosetting resin, the thermoset resin obtained therefrom having such a thermal resistance that the temperature at which the thermoset resin is caused to show a weight loss of 6% by heating at a temperature elevation rate of 10.degree. C. per minute is at least 400.degree. C., is prepared by reacting a specific phenolic resin with a member selected from the group consisting of a silicic acid ester of the formula Si(OR).sub.4 wherein R represents alkyl or aryl and a mixture of a silicic acid ester of the formula as defined above and a titanic acid ester of the formula Ti(OR).sub.4 wherein R has the same meaning as defined above in the presence of an alkaline catalyst while keeping the reaction system in a molten state, to an extent that 20- 70 mole %, based on the phenol present in the starting system to be reacted with said member, of phenolic hydroxyl groups in terms of the amount of phenol, remain unreacted. The thus obtained novel resins of the present invention can be easily set or hardened in accordance with the ordinary manner; namely by mixing with a thermohardening agent such as hexamethylenetetramine and then heating, to give thermoset resins having a superior thermal resistance as compared with the conventional phenolic resins. In addition, the thermoset resins obtained from the novel resins of this invention are excellent in mechanical strength, electrical properties and luster of molded articles.

    摘要翻译： 一种新型的热固性树脂，由其获得的热固性树脂具有这样的耐热性，使得热固性树脂的温度以每分钟10℃的升温速度加热显示出6％的重量损失，至少为 通过使特定的酚醛树脂与选自由式Si（OR）4的硅酸酯（其中R表示烷基或芳基）和硅酸酯的混合物 式（Ti）（OR）4的钛酸酯，其中R在碱性催化剂的存在下具有与上述相同的含义，同时保持反应体系处于熔融状态，至20-70℃ 基于与所述成员反应的起始体系中存在的苯酚，以苯酚的量计，酚羟基的摩尔％保持未反应。 由此得到的本发明的新型树脂可以按照常规方式容易地固化或硬化; 即通过与诸如六亚甲基四胺的热硬化剂混合，然后加热，得到与常规酚醛树脂相比具有优异耐热性的热固性树脂。 此外，由本发明的新型树脂得到的热固性树脂的机械强度，电性能和成型品的光泽性优异。

    Process for preparing foundry cores or molds and binder materials used therefor
    4.
    发明授权
    Process for preparing foundry cores or molds and binder materials used therefor 失效
    用于制备铸造芯或模具和粘合剂材料的方法

    公开(公告)号：US4283319A

    公开(公告)日：1981-08-11

    申请号：US92022

    申请日：1979-11-07

    申请人： Susumu Konii ,  Shigeo Sase ,  Masatoshi Yoshida ,  Shoei Kuroda ,  Takeshi Sumi

    发明人： Susumu Konii ,  Shigeo Sase ,  Masatoshi Yoshida ,  Shoei Kuroda ,  Takeshi Sumi

    IPC分类号： C08L61/00 ,  B22C1/10 ,  B22C1/22 ,  C08G8/04 ,  C08K3/22 ,  C08L61/04 ,  C08L61/10 ,  C08L61/12

    CPC分类号： C08G8/04 ,  B22C1/2253 ,  C08K3/22

    摘要： A novel process for preparing foundry cores or molds and binder materials used therefor are provided. The binder materials comprise (a) an alcohol-soluble phenolic resin, (b) a polyvalent metal hydroxide and/or oxide, (c) water, (d) an organic solvent, and (e) an alkali metal hydroxide. They are admixed with refractory particles, such as sand, and cured with carbon dioxide to form shaped foundry cores or molds. The process and materials of the invention bring about such advantages that curing may be performed with safe carbon dioxide, that shaped foundry cores or molds may be taken out from pattern immediately after curing, and that the products have a superior collapsibility after pouring a molten metal.

    摘要翻译： 提供了一种用于制备铸造芯或用于其的模具和粘合剂材料的新颖方法。 粘合剂材料包括（a）醇溶性酚醛树脂，（b）多价金属氢氧化物和/或氧化物，（c）水，（d）有机溶剂和（e）碱金属氢氧化物。 它们与耐火颗粒如砂混合，并用二氧化碳固化以形成成型铸造芯或模具。 本发明的方法和材料带来了这样的优点：固化可以用安全的二氧化碳进行，成型的铸造芯或模具可以在固化后立即从图案中取出，并且产品在浇注熔融金属之后具有优异的可收缩性 。

    Process for producing neutralized phenol resins
    6.
    发明授权
    Process for producing neutralized phenol resins 失效
    中和酚树脂的制备方法

    公开(公告)号：US4198499A

    公开(公告)日：1980-04-15

    申请号：US937116

    申请日：1978-08-28

    申请人： Susumu Konii ,  Masatoshi Yoshida ,  Yukio Yoshimura ,  Takehiko Ishibashi ,  Shizuo Sakamoto

    发明人： Susumu Konii ,  Masatoshi Yoshida ,  Yukio Yoshimura ,  Takehiko Ishibashi ,  Shizuo Sakamoto

    IPC分类号： C08G8/00 ,  C08G8/10 ,  C08G2/28

    CPC分类号： C08G8/10

    摘要： Resol type phenol resins containing scarcely or no phenol mononucleus compounds (monomers) and phenol dinuclei compounds (dimers) and their methylolated derivatives and scarcely containing molecules having an apparent molecular weight of more than 2500 are produced by reacting phenol with formaldehyde in the presence of an alkaline catalyst in a molar ratio of 3.0 to 6.0 moles of formaldehyde and 0.05 to 2.0 moles of the alkaline catalyst per mole of phenol, neutralizing the reaction solution with an acid to pH 4.5 to 6.5 and precipitating the resulting product for separation.

    摘要翻译： 含有几乎没有苯酚单核化合物（单体）和苯酚二核化合物（二聚体）及其羟甲基化衍生物和几乎不含有表观分子量大于2500的分子的分解酚型酚树脂通过苯酚与甲醛在存在下反应生成 碱性催化剂，摩尔比为3.0-6.0摩尔甲醛和每摩尔苯酚0.05-2.0摩尔碱性催化剂，用酸将反应溶液中和至pH 4.5至6.5，沉淀所得产物进行分离。

    Novel thermosetting resins and process for preparing the same comprising reacting a novolak with a titanic acid ester
    7.
    发明授权
    Novel thermosetting resins and process for preparing the same comprising reacting a novolak with a titanic acid ester 失效
    新型热固性树脂及其制备方法，包括用氨基酸酯反应NOVOLAK

    公开(公告)号：US3950309A

    公开(公告)日：1976-04-13

    申请号：US302207

    申请日：1972-10-30

    申请人： Tzong Jeng Chu ,  Susumu Konii

    发明人： Tzong Jeng Chu ,  Susumu Konii

    IPC分类号： C08G8/28 ,  C08G77/52 ,  C08G79/00 ,  C08G2/30

    CPC分类号： C08G8/28 ,  C08G77/52 ,  C08G79/00

    摘要： A novel thermosetting resin, the thermoset resin obtained therefrom having such a thermal resistance that the temperature at which the thermoset resin is caused to show a weight loss of 6% by heating at a temperature elevation rate of 10.degree.C. per minute is at least 400.degree.C., is prepared by reacting a specific phenolic resin with a member selected from the group consisting of a silicic acid ester of the formula Si(OR).sub.4 wherein R represents alkyl or aryl, a titanic acid ester of the formula Ti(OR).sub.4 wherein R has the same meaning as defined above and a mixture thereof in the presence of an alkaline catalyst while keeping the reaction system in a molten state, to an extent that 20 - 70 mole %, based on the phenol present in the starting system to be reacted with said member, of phenolic hydroxyl groups in terms of the amount of phenol, remain unreacted. The thus obtained novel resins of the present invention can be easily set or hardened in accordance with the ordinary manner; namely by mixing with a thermohardening agent such as hexamethylenetetramine and then heating, to give thermoset resins having a superior thermal resistance as compared with the conventional phenolic resins. In addition, the thermoset resins obtained from the novel resins of this invention are excellent in mechanical strength, electrical properties and luster of molded articles.