Curing composition for phenolic resins
    3.
    发明授权
    Curing composition for phenolic resins 失效
    酚醛树脂固化组合物

    公开(公告)号:US06465599B1

    公开(公告)日:2002-10-15

    申请号:US09345016

    申请日:1999-07-02

    IPC分类号: C08K542

    CPC分类号: C08G8/12 C08L61/06 C08L61/04

    摘要: A curing or bridging composition is useful for effecting the crosslinking of phenolic resoles and the formation of novolaks. The composition comprises from 1% to 99% by weight of partially or totally sulfonated calixarenes and from 99% to 1% of partially or totally sulfonated linear phenolic oligomers, optionally together with partially or totally sulfonated phenol. To the contrary of conventional catalysts for the crosslinking of resoles and the formation of novolaks, the composition is chemically incorporated into the molecular structure of the final products; especially the sulfonated calixarenes confer new, surprisingly improved properties to phenolic resins and novolaks and sensibly accelerate the condensation reactions.

    摘要翻译: 固化或桥接组合物可用于实现酚醛树脂的交联和形成酚醛清漆。 该组合物包含1重量%至99重量%的部分或全部磺化杯芳烃和99重量%至1重量%的部分或全部磺化线型酚低聚物,任选与部分或全部磺化苯酚一起。 与用于交联甲阶酚醛树脂和酚醛清漆形成的常规催化剂相反,组合物化学地并入最终产物的分子结构中; 特别是磺化杯芳烃给酚醛树脂和酚醛清漆树脂提供了新的令人惊奇的改进性能,并明显加速了缩合反应。

    Process for the preparation of calixarenes and new calixarene compounds
    4.
    发明授权
    Process for the preparation of calixarenes and new calixarene compounds 失效
    制备杯芳烃和新杯芳烃化合物的方法

    公开(公告)号:US06271337B1

    公开(公告)日:2001-08-07

    申请号:US09168661

    申请日:1998-10-08

    IPC分类号: C08G6538

    CPC分类号: C08G8/12

    摘要: A new two-step process for the preparation and industrial manufacture of calixarenes is disclosed. In the first step, linear phenolic oligomers are prepared in a basic medium from an optionally substituted phenol and a formaldehyde source. The reaction mixture is then neutralized or acidified, and cyclization of the oligomers is brought about at higher temperatures in the same reaction medium which is made water free and optionally completed by higher boiling liquids. The process allows a definite control of the cyclic compounds to be synthesized. Furthermore, novel calixarene compounds are disclosed as well as an installation for carrying out the process on a laboratory or industrial scale.

    摘要翻译: 公开了一种用于杯芳烃的制备和工业制造的新的两步法。 在第一步中,在任选取代的苯酚和甲醛源的碱性介质中制备线性酚低聚物。 然后将反应混合物中和或酸化,并在相同的反应介质中使低聚物环化,该反应介质是无水的,任选地通过较高沸点的液体完成。该方法允许将环状化合物确定为 此外,公开了新的杯芳烃化合物以及用于在实验室或工业规模上进行该方法的装置。

    Foamed and cross-linked phenolic resin and method for making same
    5.
    发明授权
    Foamed and cross-linked phenolic resin and method for making same 失效
    发泡和交联酚醛树脂及其制备方法

    公开(公告)号:US5852064A

    公开(公告)日:1998-12-22

    申请号:US952266

    申请日:1997-11-14

    IPC分类号: C02F1/68 C08J9/00 C08J9/14

    摘要: A phenolic foam having exceptional absorption capacities for pollutants such as hydrocarbons and other substances is described. The foam is hydrophobic and is capable of absorbing such substances in amounts up to 72 times its own weight. It is the reaction product of a resol and a cross-linking agent made of linear and/or cyclic, partially or completely sulphonated, phenolic oligomers, in the presence a surfactant and a swelling agent, and, optionally, of a coloring agent and stabilizers. A method for making the foam, an installation for implementing the method and a use of said foam are also described.

    摘要翻译: PCT No.PCT / CH96 / 00192 Sec。 371日期:1997年11月14日 102(e)1997年11月14日日期PCT提交1996年5月17日PCT公布。 WO96 / 36659 PCT公开号 日期1996年11月21日描述了一种对碳氢化合物和其他物质等污染物具有特殊吸收能力的酚醛泡沫。 泡沫是疏水性的,并且能够以高达其自身重量的72倍的量吸收这些物质。 在表面活性剂和溶胀剂以及任选的着色剂和稳定剂的存在下,由直链和/或环状,部分或完全磺化的酚低聚物制成的甲阶酚醛树脂和交联剂的反应产物 。 还描述了制造泡沫的方法,用于实施该方法的装置和所述泡沫体的用途。