专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明专利

DE60010305T2 未知
公开(公告)号：DE60010305T2
公开(公告)日：2005-05-12
申请号：DE60010305
申请日：2000-10-02
申请人： GEN ELECTRIC
发明人： KHOURI FOUAD , KAILASAM GANESH , CARINGI JOHN , PHELPS DAVID
IPC分类号： C07D209/48 , C08G65/40 , C08G73/12 , C08G75/23
摘要： Bis(halophthalimides) such as, 3-bis[N-(4-chlorophthalimido)]benzene are prepared in slurry in an organic liquid such as o-dichlorobenzene or anisole, by a reaction at a temperature of at least 150°C between at least one diamino compound, preferably an aromatic diamine such as m- or p-phenylenediamine, and at least one halophthalic anhydride such as 4-chlorophthalic anhydride, in the presence of an imidization catalyst such as sodium phenylphosphinate. The solids content of the reaction mixture is at least about 5% and preferably at least about 12% by weight. The product slurry may be employed directly in the preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

22. 发明专利

AT265434T 未知
公开(公告)号：AT265434T
公开(公告)日：2004-05-15
申请号：AT00968594
申请日：2000-10-02
申请人： GEN ELECTRIC
发明人： KHOURI FARID FOUAD , KAILASAM GANESH , CARINGI JOSEPH JOHN , PHELPS PETER DAVID
IPC分类号： C07D209/48 , C08G65/40 , C08G73/12 , C08G75/23
摘要： Bis(halophthalimides) such as, 3-bis[N-(4-chlorophthalimido)]benzene are prepared in slurry in an organic liquid such as o-dichlorobenzene or anisole, by a reaction at a temperature of at least 150°C between at least one diamino compound, preferably an aromatic diamine such as m- or p-phenylenediamine, and at least one halophthalic anhydride such as 4-chlorophthalic anhydride, in the presence of an imidization catalyst such as sodium phenylphosphinate. The solids content of the reaction mixture is at least about 5% and preferably at least about 12% by weight. The product slurry may be employed directly in the preparation of polyetherimides, and similar slurries may be employed to prepare other polyether polymers.

23. 发明专利

AT248879T 未知
公开(公告)号：AT248879T
公开(公告)日：2003-09-15
申请号：AT00965110
申请日：2000-09-18
申请人： GEN ELECTRIC
发明人： JOHNSON NORMAN ENOCH , AYALA RAUL EDUARDO , FYVIE THOMAS JOSEPH , FRESHOUR AMY RENNE , WOODRUFF DAVID WINFIELD , PHELPS PETER DAVID , KAILASAM GANESH , HOWSON PAUL EDWARD , SHANKLIN ELLIOT WEST
IPC分类号： B01D15/00 , B01D11/04 , C08G65/40 , C08G65/46 , C08G65/48 , C08G73/10 , C08G73/12 , C08G75/23
摘要： Aromatic polyethers are prepared by displacement polymerization reaction in the presence of a water-immiscible solvent with boiling point at atmospheric pressure of greater than 110° C. and a density ratio to water of greater than 1.1:1 at 20-25° C. The polyethers are purified by processes comprising aqueous extraction, or filtration, or a combination thereof.

24. 发明专利

ES2131276T3 未知
公开(公告)号：ES2131276T3
公开(公告)日：1999-07-16
申请号：ES95307252
申请日：1995-10-12
申请人： GEN ELECTRIC
发明人： DAY JAMES , KAILASAM GANESH , VARADARAJAN GODAVARTHI S
IPC分类号： B01D9/02 , B01D9/00 , B01D43/00 , B01D1/18 , C08F6/12

25. 发明专利

DE602005006410T2 未知
公开(公告)号：DE602005006410T2
公开(公告)日：2009-06-18
申请号：DE602005006410
申请日：2005-04-11
申请人： GEN ELECTRIC
发明人： MARTINEZ MARIA TOMAS , NISOLI ALBERTO , LOPEZ-CARRETERO ALFREDO , KAILASAM GANESH , DOMINGO DAVID , MCCLOSKEY PATRICK JOSEPH
IPC分类号： C08G64/30 , B01J19/18 , B01J19/20 , C08G64/20
摘要： The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

26. 发明专利

CZ20080156A3 Polysulfonové smesi snižující horlavost 未知
公开(公告)号：CZ20080156A3
公开(公告)日：2008-09-24
申请号：CZ20080156
申请日：2006-09-14
申请人： GEN ELECTRIC
发明人： GALLUCCI ROBERT RUSSELL , KAILASAM GANESH , KERNICK WILLIAM A , SANNER MARK ALAN , SINGH RAJENDRA KASHINATH
IPC分类号： C09K21/06 , C08L67/02 , C08L81/06 , C08L83/10
摘要： Kompozice se zlepšenou odolností proti horení, která obsahuje smes první pryskyrice vybrané ze souboru sestávajícího z polysulfonu, polyethersulfonu,polyfenylenethersulfonu a jejich smesí, druhé pryskyrice obsahující silikonový kopolymer a tretí pryskyrice obsahující arylpolyesterovou pryskyrici na bázi resorcinolu, kde 50 nebo více % molárních aryl-polyesterových vazeb tvorí arylesterové vazby odvozené od resorcinolu. Tyto smesi mají zlepšenouodolnost proti horení. Vrchol energie uvolnované teplem se snižuje a zvyšuje se doba pro dosažení vrcholu uvolnování tepla.

27. 发明专利

AT393792T 未知
公开(公告)号：AT393792T
公开(公告)日：2008-05-15
申请号：AT05735187
申请日：2005-04-11
申请人： GEN ELECTRIC
发明人： MARTINEZ MARIA , NISOLI ALBERTO , LOPEZ-CARRETERO ALFREDO , KAILASAM GANESH , DOMINGO DAVID , MCCLOSKEY PATRICK
IPC分类号： C08G64/30 , B01J19/18 , B01J19/20 , C08G64/20
摘要： The present invention provides a method of making polycarbonate oligomers, polycarbonate, molded articles formed from polycarbonate, and an apparatus for making polycarbonate. An oligomer mixture is first prepared by the steps of providing an equilibration system comprising a vessel, a reaction mixture contained within the vessel, and means for mixing the reaction mixture contained within the vessel wherein the reaction mixture comprises a melted activated diaryl carbonate composition, and a catalyst present in sufficient amount to initiate an oligomerization reaction between a dihydroxy composition and the activated diaryl carbonate to form polycarbonate oligomers. The method further includes the steps of introducing a melted dihydroxy composition to the reaction mixture contained within the equilibration system, maintaining the reaction mixture contained within the vessel at an oligomerization temperature, said oligomerization temperature being below the melting point the dihydroxy composition, and sufficiently high to allow formation of a homogeneous melt within the vessel, and continuously drawing off a product stream from the equilibration system, wherein the product stream comprises a polycarbonate oligomer mixture. This polycarbonate oligomer mixture is suitably used as a feed stock for producing polycarbonate in a polycondensation system. The polycarbonate is suitably used for the preparation of molded articles.

28. 发明专利

DE60205385T2 未知
公开(公告)号：DE60205385T2
公开(公告)日：2006-06-08
申请号：DE60205385
申请日：2002-05-13
申请人： GEN ELECTRIC
发明人： BRUNELLE JOSEPH , MCCLOSKEY JOSEPH , SMIGELSKI MICHAEL , BURNELL BRYDON , KAILASAM GANESH
IPC分类号： C08G64/30 , C08G64/00 , C08G64/04 , C08G64/06 , C08G64/14
摘要： Polycarbonates containing low or undetectable levels of Fries rearrangement product may be prepared by the melt reaction of a dihydroxy aromatic compound such as bisphenol A with an ester-substituted diaryl carbonate such as the diaryl carbonate of methyl salicylate, bis-methyl salicyl carbonate. Low levels of Fries product are obtained as the combined result of a highly effective catalyst system which suppresses the Fries reaction and the use of lower melt polymerization temperatures relative to temperatures required for the analogous polymerization reaction using diphenyl carbonate.

29. 发明专利

AT301149T 未知
公开(公告)号：AT301149T
公开(公告)日：2005-08-15
申请号：AT02731800
申请日：2002-05-13
申请人： GEN ELECTRIC
发明人： BRUNELLE DANIEL JOSEPH , MCCLOSKEY PATRICK JOSEPH , SMIGELSKI PAUL MICHAEL JR , BURNELL TIMOTHY BRYDON , KAILASAM GANESH
IPC分类号： C08G64/04 , C08G64/06 , C08G64/14 , C08G64/30 , C08G64/00
摘要： Polycarbonates containing low or undetectable levels of Fries rearrangement product may be prepared by the melt reaction of a dihydroxy aromatic compound such as bisphenol A with an ester-substituted diaryl carbonate such as the diaryl carbonate of methyl salicylate, bis-methyl salicyl carbonate. Low levels of Fries product are obtained as the combined result of a highly effective catalyst system which suppresses the Fries reaction and the use of lower melt polymerization temperatures relative to temperatures required for the analogous polymerization reaction using diphenyl carbonate.

30. 发明专利

SG71860A1 Method for recovering and recycling catalyst constituents 未知
公开(公告)号：SG71860A1
公开(公告)日：2000-04-18
申请号：SG1998004337
申请日：1998-10-28
申请人： GEN ELECTRIC
发明人： OFORI JOHN YAW , SHAFER SHELDON JAY , PRESSMAN ERIC JAMES , KAILASAM GANESH , LEE JULIA LAM
IPC分类号： B09B3/00 , B01J23/94 , B01J27/32 , B01J31/40 , B01J38/00 , B01J38/50 , C07C68/08 , C07C69/68 , C22B11/04
摘要： Catalytic materials including divalent palladium compounds, divalent cobalt compounds and bromide sources such as tetraalkylammonium and hexaalkylguanidinium bromides are removed from organic carbonylation reaction mixtures comprising said materials in combination with diaryl carbonate and hydroxyaromatic compound. The removal steps include extraction with an aqueous complexing solution for palladium, extraction with an-aqueous non-basic and preferably ionic extractant for cobalt, and extraction with water to remove bromide source. These steps may be combined into an integrated process. Further steps of recycle of the palladium by reduction to elemental palladium and conversion to a catalytically active species, and conversion of cobalt to a catalytically active species, may be included in the integrated process.

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