专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US4404363A Separation of diphasic mixtures containing aromatic polyesters 失效
标题翻译：分离含有芳族聚酯的二元混合物
公开(公告)号：US4404363A
公开(公告)日：1983-09-13
申请号：US371532
申请日：1982-04-26
申请人： Dieter Freitag , Volker Serini , John Goossens , Ludwig Bottenbruch , Uwe Hucks
发明人： Dieter Freitag , Volker Serini , John Goossens , Ludwig Bottenbruch , Uwe Hucks
IPC分类号： B01D17/05 , C08G63/89 , C08G63/74
CPC分类号： C08G63/89
摘要： Diphasic mixtures obtained from the synthesis of aromatic polyesters by the diphasic interface process may be separated into an aqueous phase and an organic phase by the addition of selected compounds.
摘要翻译：通过二相界面方法从芳族聚酯的合成得到的两相混合物可以通过加入所选择的化合物而分离成水相和有机相。

12. 发明授权

US4289685A Process for the preparation of flame-resistant polycarbonates 失效
标题翻译：阻燃聚碳酸酯的制备方法
公开(公告)号：US4289685A
公开(公告)日：1981-09-15
申请号：US174298
申请日：1980-08-04
申请人： Frank Druschke , Dieter Margotte , Erhard Tresper , Ludwig Bottenbruch , Wolfgang Cohnen , Uwe Hucks
发明人： Frank Druschke , Dieter Margotte , Erhard Tresper , Ludwig Bottenbruch , Wolfgang Cohnen , Uwe Hucks
IPC分类号： C08L69/00 , C08J3/20 , C08K3/00 , C08K3/016 , C08K3/16 , C08K3/24 , C08K5/00 , C08K5/09 , C08K5/16 , C08K5/36 , C08K5/42
CPC分类号： C08K3/0058 , C08K5/0066 , C08K5/42
摘要： The invention relates to a process for rendering flame-resistant the thermoplastic aromatic polycarbonates prepared by a solution process, characterized by dispersing an aqueous solution of salt-like flameproofing agent in a washed and neutral polycarbonate/organic solvent system.
摘要翻译：本发明涉及一种通过溶液法制备的热塑性芳族聚碳酸酯具有阻燃性的方法，其特征在于将盐状防火剂的水溶液分散在洗涤和中性的聚碳酸酯/有机溶剂体系中。

13. 发明申请

US20050131197A1 Transesterification process for the production of polycarbonates having a low content of volatile compounds 有权
标题翻译：用于生产挥发性化合物含量低的聚碳酸酯的酯交换方法
公开(公告)号：US20050131197A1
公开(公告)日：2005-06-16
申请号：US11002866
申请日：2004-12-02
申请人： Uwe Hucks , Melanie Mothrath , Helmut-Werner Heuer , Thomas Konig , Lydia Simon , Marc Buts , Johan Vanden Eynde
发明人： Uwe Hucks , Melanie Mothrath , Helmut-Werner Heuer , Thomas Konig , Lydia Simon , Marc Buts , Johan Vanden Eynde
IPC分类号： C08G64/00 , C08G64/04 , C08G64/06 , C08G64/14 , C08G64/20 , C08G64/30 , C08G64/40
CPC分类号： C08G64/307
摘要： A multi stage process for the production of polycarbonates having low monomer content is disclosed. The process entails, in sequence, (i) transesterifying in the melt at least one dihydroxyaryl compound with at least one diaryl carbonate in the presence of at least one onium catalyst to produce a polycondensate that contains monomers, (ii) introducing into the polycondensate an inhibitor in an hypostoichiometric amount in relation to the catalyst and (iii) reducing in a finishing reactor the content of monomers in said polycondensate. The polycarbonate thus produced is characterized in that it contains less than 350 ppm of diphenyl carbonate, less than 40 ppm of 2,2-bis-(4-hydroxyphenyl)propane and less than 150 ppm of phenol.
摘要翻译：公开了一种生产具有低单体含量的聚碳酸酯的多阶段方法。该方法按顺序进行，（i）在至少一种鎓催化剂的存在下，使至少一种二羟基芳基化合物与至少一种碳酸二芳基酯在至少一种二羟基芳基化合物中酯交换以产生含有单体的缩聚物，（ii）将所述缩聚物引入到缩聚物中抑制剂相对于催化剂的低化学计量量，和（iii）在精整反应器中还原所述缩聚物中单体的含量。如此生产的聚碳酸酯的特征在于其含有少于350ppm的碳酸二苯酯，小于40ppm的2,2-双 - （4-羟基苯基）丙烷和小于150ppm的苯酚。

14. 发明授权

US06703473B2 Process for producing polycarbonate 有权
标题翻译：生产聚碳酸酯的方法
公开(公告)号：US06703473B2
公开(公告)日：2004-03-09
申请号：US10038953
申请日：2002-01-02
申请人： Uwe Hucks , Kaspar Hallenberger , Silke Kratschmer , Michael Prein , Steffen Kühling
发明人： Uwe Hucks , Kaspar Hallenberger , Silke Kratschmer , Michael Prein , Steffen Kühling
IPC分类号： C08G6400
CPC分类号： C08G64/406 , C08G64/307
摘要： An improvement to the melt transesterification reaction of diaryl carbonate with dihydroxy aryl compound is disclosed. The improvement entails the following steps (i) introducing the resulting vapor stream at the mid-height of a first distillation column, and (ii) separating the vapor stream into a top product containing high purity monohydroxy aryl compound and a first bottom product, and (iii) recycling the high purity monohydroxy aryl compound of (ii) to the reaction, and (iv) introducing the first bottom product at mid-height of a second distillation column, and (v) separating said first bottom product into high boiling bottom by-product and overhead remaining constituents, and (vi) introducing the overhead remaining constituents at mid-height of a third distillation column, and (vii) separating said overhead remaining constituents into overhead low-boiling fractions and bottom or product side stream that contains diaryl carbonate product, and (viii) recycling the diaryl carbonate product directly to the transesterification reaction.
摘要翻译：公开了碳酸二芳酯与二羟基芳基化合物的熔融酯交换反应的改进。改进需要以下步骤：（i）将所得蒸汽流引入第一蒸馏塔的中间高度，和（ii）将蒸汽流分离成含有高纯度单羟基芳基化合物和第一底部产物的顶部产物，以及（iii）将（ii）的高纯度单羟基芳基化合物再循环到反应中，和（iv）在第二蒸馏塔的中间部分引入第一底部产物，和（v）将所述第一底部产物分离成高沸点底部副产物和塔顶残留组分，和（vi）在第三蒸馏塔的中间高度引入塔顶剩余成分，和（vii）将塔顶剩余组分分离成塔顶低沸点馏分和底部或产物侧流，其含有碳酸二芳基酯产物，和（viii）将碳酸二芳基酯产物直接再循环到酯交换反应中。

15. 发明授权

US06307006B1 Method for producing branched polycarbonates 失效
标题翻译：支链聚碳酸酯的制备方法
公开(公告)号：US06307006B1
公开(公告)日：2001-10-23
申请号：US09445849
申请日：1999-12-14
申请人： Annett König , Lothar Bunzel , Uwe Hucks
发明人： Annett König , Lothar Bunzel , Uwe Hucks
IPC分类号： C08G6400
CPC分类号： C08G64/1616 , C08G64/30
摘要： A process of producing branched polycarbonates by melt transesterification from at least one diphenol, diaryl carbonate and a branching agent, and in the optional presence of a catalyst is disclosed. The process which is carried out at temperatures between 80 to 400° C. and at pressures between 1 and 0.01 mbar, entails using as branching agent at least one member selected from the group consisting of (i) a specifically structured aliphatic alcohol and (ii) the ether of (i) which is formed by self-condensation.
摘要翻译：公开了通过熔融酯交换从至少一种二酚，碳酸二芳酯和支化剂生产支化聚碳酸酯的方法，以及任选的催化剂存在下的方法。在80至400℃的温度和1至0.01毫巴的压力下进行的方法需要使用至少一种选自（i）特定结构的脂族醇和（ii））通过自缩合形成的（i）的醚。

16. 发明授权

US4038252A Phase boundary process for the preparation of aromatic polycarbonates using a chlorinated aromatic hydrocarbon as the polymer solvent 失效
标题翻译：使用氯化芳香烃作为聚合物溶剂制备芳族聚碳酸酯的相界面方法
公开(公告)号：US4038252A
公开(公告)日：1977-07-26
申请号：US555225
申请日：1975-03-04
申请人： Hugo Vernaleken , Uwe Hucks
发明人： Hugo Vernaleken , Uwe Hucks
IPC分类号： C08G63/00 , C08G64/06 , C08G64/22 , C08G64/24 , C08G63/62
CPC分类号： C08G64/24 , C08G64/06
摘要： The present invention provides a process for the preparation of a polycarbonate by the phase boundary condensation method, by phosgenation of an aqueous alkali metal salt solution of one or more aromatic dihydroxy compounds, in which process an aromatic chlorinated hydrocarbon is used as the solvent and the synthesis of the polycarbonate is carried out in two stages, in the first stage of which the reaction of the alkali metal salt solution of the aromatic dihydroxy compound(s) with phosgene is carried out at an OH concentration of between 0.01 and 0.1% by weight of OH, relative to the aqueous phase, in the presence of 0.1 to 2.5 mol% of trialkylamine, relative to aromatic dihydroxy compound(s), and at a temperature higher than 70.degree. C, with a dwell time of less than 5 minutes, while in the second stage the polycondensation is effected by adjusting the OH concentration to 0.20 to 0.50% by weight of OH, relative to the aqueous phase, optionally with further addition of trialkylamine, at a temperature higher than 80.degree. C and with a dwell time of more than 1 minute.

17. 发明申请

US20050124734A1 Process for the introduction of additives, into polymer melts 审中-公开
标题翻译：引入添加剂的方法，进入聚合物熔体
公开(公告)号：US20050124734A1
公开(公告)日：2005-06-09
申请号：US11002827
申请日：2004-12-02
申请人： Uwe Hucks , Thomas Konig , Melanie Mothrath
发明人： Uwe Hucks , Thomas Konig , Melanie Mothrath
IPC分类号： B01F5/04 , B01F5/06 , B01F5/14 , B01F5/20 , B01F7/08 , B01F13/10 , B29B7/88 , B29B7/94 , C08K3/00
CPC分类号： B01F5/06 , B01F5/0498 , B01F5/14 , B01F5/205 , B01F7/086 , B01F13/103 , B29B7/726 , B29B7/823 , B29B7/88 , B29B7/94
摘要： A process for making a thermoplastic molding composition comprising (i) forming a vertically falling stream of molten polymer, and (ii) bringing at least one additive in solid or liquid states, in solution, in the form of a dispersion or in suspension into contact with at least a part of the surface of said stream and to introduce the additive in said stream to produce combined stream, and (iii) introducing the combined stream into a pump to form a pre-mix and (iv) introducing the premix into a mixer to form a homogeneous polymer melt. The entraining stream is then introduced to a pump to form a pre-mix which is then introduced to a mixer to form a homogeneous polymer melt. The process results in a compositions having advantageous material properties.
摘要翻译：一种制造热塑性模塑组合物的方法，其包括（i）形成垂直下落的熔融聚合物流，和（ii）以溶液形式的至少一种固体或液体状态的添加剂，以分散体或悬浮液形式接触与所述物流的至少一部分表面并将所述添加剂引入所述物流中以产生组合流，和（iii）将所述组合流引入泵中以形成预混物，和（iv）将所述预混合物引入到混合器以形成均匀的聚合物熔体。然后将引入流引入泵以形成预混物，然后将其引入混合器以形成均匀的聚合物熔体。该方法产生具有有利材料性质的组合物。

18. 发明授权

US06887970B2 Method for producing polycarbonates 有权
标题翻译：聚碳酸酯的制备方法
公开(公告)号：US06887970B2
公开(公告)日：2005-05-03
申请号：US10473316
申请日：2002-03-13
申请人： Silke Kratschmer , Uwe Hucks , Michael Prein
发明人： Silke Kratschmer , Uwe Hucks , Michael Prein
IPC分类号： C08G64/30 , C08G64/00
CPC分类号： C08G64/307
摘要： The invention relates to a continuous method for producing polycarbonates by transesterifying diaryl carbonates with dihydroxyaryl compounds in the presence of quaternary onium compounds. The invention also relates to polycarbonates produced thereby and products produced from said polycarbonates.
摘要翻译：本发明涉及通过在季鎓化合物的存在下将碳酸二芳基酯与二羟基芳基化合物酯交换来生产聚碳酸酯的连续方法。本发明还涉及由此生产的聚碳酸酯和由所述聚碳酸酯生产的产品。

19. 发明授权

US06887968B2 Process for the recycling of polycarbonates 失效
标题翻译：聚碳酸酯回收工艺
公开(公告)号：US06887968B2
公开(公告)日：2005-05-03
申请号：US10229787
申请日：2002-08-28
申请人： Heinrich Hähnsen , Uwe Hucks , Silke Kratschmer , Manfred Schraut
发明人： Heinrich Hähnsen , Uwe Hucks , Silke Kratschmer , Manfred Schraut
IPC分类号： C08G64/40 , C08G64/42 , C08G64/00
CPC分类号： C08G64/42
摘要： A process for making a high molecular weight (co)polycarbonate resin is disclosed. The process entails (i) obtaining at least one member selected from the group low molecular weight residue (weight average molecular weight 15,000 to 30,000) of aromatic (co)polycarbonate production, waste of (co)polycarbonate production, remainders of (co)polycarbonate production and (co)polycarbonate recyclate (ii) melting the said member in a suitable vessel to obtain a melt and (iii) feeding the melt into a reactor optionally along with at least one bisphenol or oligocarbonate having terminal OH groups and further optionally with a transesterification catalyst, and (iv) subjecting the melt to transesterification reaction at a temperature of 250 to 350° C., at a pressure below 5 mbar and residence time of 0.02-4 hours.
摘要翻译：公开了制备高分子量（共）聚碳酸酯树脂的方法。该方法包括：（i）获得选自芳族（共）聚碳酸酯生产的低分子量残余物（重均分子量为15,000至30,000）中的至少一种，（共）聚碳酸酯生产的废弃物，（共）聚碳酸酯的剩余物生产和（共）聚碳酸酯回收（ii）在合适的容器中熔化所述构件以获得熔体，和（iii）将熔体任选地与至少一种具有末端OH基的双酚或低聚碳酸酯一起进料到反应器中，酯交换催化剂，和（iv）在250-350℃的温度，低于5mbar的压力和0.02-4小时的停留时间下对熔体进行酯交换反应。

20. 发明授权

US06710152B1 Solid particles 失效
标题翻译：固体颗粒
公开(公告)号：US06710152B1
公开(公告)日：2004-03-23
申请号：US10129151
申请日：2002-05-02
申请人： Rolf Lanze , Michael Prein , Uwe Hucks
发明人： Rolf Lanze , Michael Prein , Uwe Hucks
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： Solid particles containing 10 to 90 parts by weight of a dihydroxy compound and 10 to 90 parts by weight of a carbonic acid ester are disclosed. Also disclosed is a process for the production of these particles, an apparatus suitable for the process and a method for their use in production of polycarbonate by transesterification of carbonic acid esters with dihydroxy compounds.
摘要翻译：公开了含有10至90重量份二羟基化合物和10至90重量份碳酸酯的固体颗粒。还公开了制备这些颗粒的方法，适用于该方法的装置及其通过碳酸酯与二羟基化合物的酯交换反应生产聚碳酸酯的方法。

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