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21 条记录 (耗时 0.016 秒)

    Polycarbonate preparation from molten bisphenol-A/water mixture
    5.
    发明授权
    Polycarbonate preparation from molten bisphenol-A/water mixture 失效
    熔融双酚A /水混合物制备聚碳酸酯

    公开(公告)号：US5225518A

    公开(公告)日：1993-07-06

    申请号：US826319

    申请日：1992-01-21

    申请人： Gaylord M. Kissinger

    发明人： Gaylord M. Kissinger

    IPC分类号： C08G64/30 ,  C08G64/20 ,  C08G64/24

    CPC分类号： C08G64/20 ,  C08G64/24

    摘要： In the interfacial polymerization process for preparing aromatic carbonate polymers by reacting bisphenol-A with a carbonate precursor, the bisphenol-A is introduced to the reaction medium in a liquid form saturated with water.

    摘要翻译： 在双酚A与碳酸酯前体反应制备芳族碳酸酯聚合物的界面聚合方法中，双酚A以饱和水的液体形式引入反应介质中。

    Process for color stabilization of bisphenol-A
    6.
    发明授权
    Process for color stabilization of bisphenol-A 失效
    双酚A的颜色稳定方法

    公开(公告)号：US4876395A

    公开(公告)日：1989-10-24

    申请号：US217722

    申请日：1988-07-11

    申请人： Gaylord M. Kissinger

    发明人： Gaylord M. Kissinger

    IPC分类号： B01J31/08 ,  C07B61/00 ,  C07C37/20 ,  C07C37/88 ,  C07C39/15 ,  C07C39/16

    CPC分类号： C07C37/88

    摘要： A process which comprises(a) contacting an excess of a phenol with a ketone in the presence of an acidic ion exchange resin catalyst;(b) recovering thereafter a stream from an acidic ion exchange resin catalyst, said stream including the dihydric phenol, unreacted phenol, isomers of the desired dihydric phenol and acid impurities derived from the acidic ion exchange resin catalyst;(c) removing a major portion of the desired dihydric phenol from the stream of (b);(d) adding to the dihydric phenol effective quantities of a Group II-a metal or transition metal of oxidation number +2 carbonate to color stablize the dihydric phenol;(e) recovering the solid dihydric phenol and the metal carbonate.

    Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol
    7.
    发明授权
    Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol 失效
    从2,2-双（4-羟基苯基）丙烷和苯酚的加合物中回收2,2-双（4-羟基苯基）丙烷的方法

    公开(公告)号：US4212997A

    公开(公告)日：1980-07-15

    申请号：US919667

    申请日：1978-06-27

    申请人： John N. Adams ,  Gaylord M. Kissinger ,  Michael C. Lee

    发明人： John N. Adams ,  Gaylord M. Kissinger ,  Michael C. Lee

    IPC分类号： C07C27/00 ,  C07C37/84 ,  C07C39/16 ,  C07C67/00 ,  C07C37/44

    CPC分类号： C07C37/84 ,  C07C37/685

    摘要： The compound 2,2-bis(4-hydroxyphenyl)propane is recovered in the form of rhombic crystals from an essentially non-crystalline mixture comprising 2,2-bis(4-hydroxyphenyl)propane, organic by-products of the condensation reaction of phenol and acetone, and phenol by lowering the temperature of the mixture from an elevated state to a temperature which is low enough to cause the separation of the phenol and 2,2-bis(4-hydroxyphenyl)propane in equimolar proportions as a crystalline adduct, recovering the adduct, forming a mixture of the adduct and water at an elevated temperature sufficient to completely melt the adduct, and thereafter lowering the temperature of the mixture of water and melted adduct to cause the separation of the 2,2-bis(4-hydroxyphenyl)propane in the form of rhombic crystals substantially free of the phenol. The crystals are easily handled and recovered by means such as filtration or centrifugation, and they can be formed into high quality polycarbonate molding resins.

    摘要翻译： 化合物2,2-双（4-羟基苯基）丙烷以菱形晶体的形式从包含2,2-双（4-羟基苯基）丙烷的基本上非结晶的混合物中回收，其中有机副产物是 苯酚和丙酮，和苯酚，通过将混合物的温度从升高状态降低到足够低的温度，使得以等摩尔比例分离苯酚和2,2-双（4-羟基苯基）丙烷作为结晶加合物 ，回收加合物，在足以完全熔化加合物的高温下形成加合物和水的混合物，然后降低水和熔融的加合物的混合物的温度，导致2,2-双（4 羟基苯基）丙烷，其形式基本上不含酚。 通过过滤或离心等方法可以容易地处理和回收晶体，并且它们可以形成高质量的聚碳酸酯模制树脂。

    Purification of bisphenol-A
    8.
    发明授权
    Purification of bisphenol-A 失效
    双酚A的纯化

    公开(公告)号：US5434316A

    公开(公告)日：1995-07-18

    申请号：US281970

    申请日：1994-07-28

    申请人： Gaylord M. Kissinger

    发明人： Gaylord M. Kissinger

    IPC分类号： C07B63/00 ,  B01D9/00 ,  C07B61/00 ,  C07C37/20 ,  C07C37/84 ,  C07C39/16

    CPC分类号： C07C37/84 ,  B01D9/0013

    摘要： Bisphenol-A produced by the condensation of acetone and phenol is freed of contaminant co-products by melting and crystallization in and from water. The final washing, in hot water, cleanses the crystal surfaces of remaining contaminants without the need for organic solvents.

    摘要翻译： 通过丙酮和苯酚的缩合产生的双酚A通过在水中和从水中熔化和结晶而消除污染物的副产物。 在热水中进行最后一次洗涤，清洁剩余污染物的晶体表面，无需有机溶剂。

    Process for preparing paracumylphenol
    10.
    发明授权
    Process for preparing paracumylphenol 失效
    亚麻酰苯酚的制备方法

    公开(公告)号：US5185475A

    公开(公告)日：1993-02-09

    申请号：US891025

    申请日：1992-06-01

    申请人： Gaylord M. Kissinger

    发明人： Gaylord M. Kissinger

    IPC分类号： C07C37/14 ,  C07C37/88

    CPC分类号： C07C37/88 ,  C07C37/14

    摘要： A method for preparing paracumylphenol in a highly selective manner which comprisesa. reacting alpha methylstyrene with a purity greater than about 99.5 wt. % with a molecular excess of phenol having a purity greater than about 99.95 wt. % in the contact presence of a solid organic cation exchange resin at a temperature of from about 40.degree. C. to about 100.degree. C. and obtaining a stream containing paracumylphenol, phenol and small quantitities of side reaction products comprising orthocumylphenol and alpha methylstyrene dimers,b. removing excess phenol and other unwanted materials which are lower boiling than paracumylphenol, thereby leaving a stream which is at least about 99 wt. % paracumylphenol.

    摘要翻译： 一种以高度选择性方式制备副反式苯酚的方法，其包括a。 使α-甲基苯乙烯与纯度大于约99.5重量％反应。 ％，其分子过量的苯酚的纯度大于约99.95wt。 在固体有机阳离子交换树脂的接触存在下，在约40℃至约100℃的温度下获得含有副反应产物的苯，苯酚和包含正辛基酚和α-甲基苯乙烯二聚体的副反应产物的小量， b。 除去过量的苯酚和其它比对次酰基苯酚沸点低的不想要的物质，从​​而留下至少约99wt。 百草枯酚。