专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5304689A Stabilization of color in production of paracumylphenol using hypophosphorous acid 失效
标题翻译：使用次磷酸在副产物中稳定颜色
公开(公告)号：US5304689A
公开(公告)日：1994-04-19
申请号：US42976
申请日：1993-04-05
申请人： Gaylord M. Kissinger
发明人： Gaylord M. Kissinger
IPC分类号： B01J31/08 , C07B61/00 , C07C37/14 , C07C37/88 , C07C39/15 , C07C37/68 , C07C39/14
CPC分类号： C07C37/88 , C07C37/14
摘要： Para-cumylphenol is continuously produced by the reaction of purified phenol and alpha-methylatyrene in the presence of an acidic catalyst and an effective amount of hypophosphorous acid (H.sub.3 PO.sub.2) for stabilizing the color and UV absorption.
摘要翻译：在酸性催化剂和有效量的次磷酸（H3PO2）存在下，通过纯化的苯酚和α-甲基苯乙烯的反应连续产生对枯基苯酚，用于稳定颜色和UV吸收。

2. 发明授权

US5225518A Polycarbonate preparation from molten bisphenol-A/water mixture 失效
标题翻译：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。

3. 发明授权

US4876395A Process for color stabilization of bisphenol-A 失效
标题翻译：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.

4. 发明授权

US4212997A Process for recovering 2,2-bis(4-hydroxyphenyl)propane from an adduct of 2,2-bis(4-hydroxyphenyl)propane and phenol 失效
标题翻译：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。

5. 发明授权

US5434316A Purification of bisphenol-A 失效
标题翻译：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。

6. 发明授权

US5382708A Process for inhibiting dihydric phenol degradation and color formation and composition thereof 失效
标题翻译：抑制二元酚降解和着色形成的方法及其组成
公开(公告)号：US5382708A
公开(公告)日：1995-01-17
申请号：US146353
申请日：1993-10-29
申请人： Gaylord M. Kissinger
发明人： Gaylord M. Kissinger
IPC分类号： C07C37/68 , C07C37/74 , C07C37/88 , C07C39/16 , C08G64/00 , C08G64/06 , C08G64/20 , C07C37/00 , C07C37/16
CPC分类号： C07C37/74 , C07C37/685 , C07C37/88
摘要： A process for improving the color of bisphenol-A and improving yields of bisphenol-A comprises the addition of hypophosphorus acid either prior to or concurrent with a distillation step.
摘要翻译：改善双酚-A颜色并提高双酚A产率的方法包括在蒸馏步骤之前或同时加入次磷酸。

7. 发明授权

US5185475A Process for preparing paracumylphenol 失效
标题翻译：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。

8. 发明授权

US4740634A Process for crystallizing bisphenol-A 失效
标题翻译：结晶双酚A的方法
公开(公告)号：US4740634A
公开(公告)日：1988-04-26
申请号：US920465
申请日：1986-10-20
申请人： Isabel M. Gomes de Matos , Gaylord M. Kissinger
发明人： Isabel M. Gomes de Matos , Gaylord M. Kissinger
IPC分类号： C07C37/84
CPC分类号： C07C37/84
摘要： A process for crystallizing bisphenol-A which comprises:a. adding water to a mixture comprising bisphenol-A, about 0.5 to 15 weight percent of diphenol isomers and impurities, said mixture essentially free of phenol,b. maintaining the combined water and said mixture of (a) at a temperature sufficient to melt the solid material of step (a),c. adiabatically cooling the water and said mixture to below about 90.degree. C.,d. separating crystallized bisphenol-A from the mother liquor, ande. washing the crystallized bisphenol-A with an organic solvent which is at least substantially insoluble in water.
摘要翻译：一种结晶双酚-A的方法，其包括：a。向包含双酚-A的混合物中加入水，约0.5-15重量％的二酚异构体和杂质，所述混合物基本上不含酚，b。维持合并的水和所述混合物（a）在足以熔化步骤（a）的固体材料的温度下，c。将水和所述混合物绝热冷却至低于约90℃，d。从母液中分离出结晶的双酚A，用至少基本上不溶于水的有机溶剂洗涤结晶的双酚A。

9. 发明授权

US06486222B2 Combination ion exchange resin bed for the synthesis of bisphenol A 有权
标题翻译：用于合成双酚A的组合离子交换树脂床
公开(公告)号：US06486222B2
公开(公告)日：2002-11-26
申请号：US09828721
申请日：2001-04-09
申请人： Gaylord M. Kissinger , Sheldon J. Shafer , Harish R. Acharya , Rudy Francois Alain J. Peemans , Eduard H. Schlarmann
发明人： Gaylord M. Kissinger , Sheldon J. Shafer , Harish R. Acharya , Rudy Francois Alain J. Peemans , Eduard H. Schlarmann
IPC分类号： B01J4702
CPC分类号： B01J31/10 , B01J2231/347 , C07C37/20 , C07C39/16
摘要： The invention is a catalytic ion exchange resin bed with low pressure drop, low catalyst breakage and low catalyst deactivation as well as an improved process for the production of bisphenol A employing such a catalytic ion exchange resin bed.
摘要翻译：本发明是一种具有低压降，低催化剂断裂和低催化剂失活的催化离子交换树脂床，以及使用这种催化离子交换树脂床制备双酚A的改进方法。

10. 发明授权

US5475152A Process and composition 失效
标题翻译：过程和组成
公开(公告)号：US5475152A
公开(公告)日：1995-12-12
申请号：US329746
申请日：1994-10-26
申请人： Gaylord M. Kissinger , Nicholas P. Wynn
发明人： Gaylord M. Kissinger , Nicholas P. Wynn
IPC分类号： C07C37/84 , C07C39/16 , C07C37/68
CPC分类号： C07C37/84
摘要： A method comprising purifying impure bisphenol-A by fractional melt crystallization in a falling film dynamic crystallizer.
摘要翻译：一种包括在降膜动态结晶器中通过分级熔融结晶纯化不纯双酚A的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式