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公开(公告)号：WO0110622A8
公开(公告)日：2001-06-14
申请号：PCT/US0015921
申请日：2000-06-09
Applicant: GEN ELECTRIC
Inventor： DAY JAMES , ACHARYA HARISH RADHAKRISHNA
CPC classification number: C08J9/26 , B29C44/3461 , C08J9/142 , C08J9/16 , C08J2201/0422 , C08J2369/00
Abstract: A method of preparing cellular pellets from a prepolymer comprising a blowing agent, the method comprising the steps of: a) extruding the prepolymer through a die, the die maintained at conditions such that the blowing agent remains in the condensed phase in the prepolymer prior to emerging from the die, and b) upon emergence of the prepolymer through the die, substantially simultaneously cooling the prepolymer by contacting the prepolymer with a cooling agent and cutting the prepolymer; the conditions outside the die being maintained such that the blowing agent vaporizes in the prepolymer to form pores.
Abstract translation: 由包含发泡剂的预聚物制备蜂窝状颗粒的方法，所述方法包括以下步骤：a）通过模头挤出预聚物，将模头保持在使得发泡剂在预聚物中保留在冷凝相中的条件下 b）在预聚物通过模具出现时，通过使预聚物与冷却剂接触并切割预聚物基本上同时冷却预聚物; 保持模具外的条件，使得发泡剂在预聚物中蒸发以形成孔隙。
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公开(公告)号：WO0022635A8
公开(公告)日：2001-02-08
申请号：PCT/US9922320
申请日：1999-09-28
Applicant: GEN ELECTRIC
Abstract: An ultracapacitor (10) comprises two solid, nonporous current collectors (22, 24), two porous electrodes (14, 16) separating the collectors (22, 24), a porous separator (18) between the electrodes (14, 16) and an electrolyte (20) occupying the pores in the electrodes (14, 16) and separator (18). The porous separator (18) layer comprises an amorphous fumed silica layer coated onto at least one of the electrodes (14, 16).
Abstract translation: 超级电容器（10）包括两个固体无孔集电器（22,24），分离集电器（22,24）的两个多孔电极（14,16），电极（14,16）之间的多孔分离器（18）和 占据电极（14,16）和分离器（18）中的孔的电解质（20）。 多孔分离器（18）层包括涂覆在至少一个电极（14,16）上的无定形热解二氧化硅层。
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公开(公告)号：WO0022635A9
公开(公告)日：2000-09-21
申请号：PCT/US9922320
申请日：1999-09-28
Applicant: GEN ELECTRIC
Abstract: An ultracapacitor (10) comprises two solid, nonporous current collectors (22, 24), two porous electrodes (14, 16) separating the collectors (22, 24), a porous separator (18) between the electrodes (14, 16) and an electrolyte (20) occupying the pores in the electrodes (14, 16) and separator (18). The porous separator (18) layer comprises an amorphous fumed silica layer coated onto at least one of the electrodes (14, 16).
Abstract translation: 超级电容器（10）包括两个固体无孔集流器（22,24），两个分隔集流器（22,24）的多孔电极（14,16），在电极（14,16）之间的多孔分离器（18）和 占据电极（14,16）和分离器（18）中的孔的电解质（20）。 多孔分离器（18）层包括涂覆到至少一个电极（14,16）上的无定形煅制二氧化硅层。
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公开(公告)号：WO0114453A8
公开(公告)日：2002-06-06
申请号：PCT/US0020115
申请日：2000-07-24
Applicant: GEN ELECTRIC
Inventor： BAILLY CHRISTIAN MARIA EMILE , IDAGE BHASKAR BHAIRAVNATH , SIVARAN SWAMINATHAN , CHAVAN NAYAKU NIVARATI , FABER REIN MOLLERUS , MENON SHAMAL KARUNAKARAN , CHATTERJEE GAUTAM , VARADARAJAN GODAVARTHI SATYANA , DAY JAMES , MCLOSKEY PATRICK JOSEPH , KING JOSEPH ANTHONY JR , JADHAV ARUN SAVALARAM
CPC classification number: C08G64/20 , C08G64/06 , C08G64/14 , C08G64/183 , C08G64/307
Abstract: Copolycarbonates containing such structural units as birefringence-reducing or "soft block" units are prepared by conducting a reaction, such as melt polymerization or equilibration, between a precursor polycarbonate and a monomer, polycarbonate oligomer or high molecular weight polycarbonate which is a source of other structural units. The crystallinity of the resulting precursor copolycarbonate or one of the reagents employed in its preparation is enhanced and the precursor copolycarbonate is subjected to solid state polymerization.
Abstract translation: 通过在前体聚碳酸酯和单体，聚碳酸酯低聚物或高分子量聚碳酸酯之间进行诸如熔融聚合或平衡的反应来制备含有诸如双折射降低或“软嵌段”单元的结构单元的共聚碳酸酯 结构单位。 得到的前体共聚碳酸酯或其制备中使用的试剂之一的结晶度提高，前体共聚碳酸酯进行固态聚合。
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公开(公告)号：WO0022635A2
公开(公告)日：2000-04-20
申请号：PCT/US9922320
申请日：1999-09-28
Applicant: GEN ELECTRIC
Abstract: An ultracapacitor (10) comprises two solid, nonporous current collectors (22, 24), two porous electrodes (14, 16) separating the collectors (22, 24), a porous separator (18) between the electrodes (14, 16) and an electrolyte (20) occupying the pores in the electrodes (14, 16) and separator (18). The porous separator (18) layer comprises an amorphous fumed silica layer coated onto at least one of the electrodes (14, 16).
Abstract translation: 超级电容器（10）包括两个固体无孔集电器（22,24），分离集电器（22,24）的两个多孔电极（14,16），电极（14,16）之间的多孔分离器（18）和 占据电极（14,16）和分离器（18）中的孔的电解质（20）。 多孔分离器（18）层包括涂覆在至少一个电极（14,16）上的无定形热解二氧化硅层。
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Patent Agency Ranking
公开(公告)号：DE60221542D1
公开(公告)日：2007-09-13
申请号：DE60221542
申请日：2002-06-17
Applicant: GEN ELECTRIC
Abstract: Solid state polymerization of partially crystalline polycarbonate oligomers bearing ester-substituted terminal groups occurs at useful reaction rates despite their high level of endcapping. Partially crystalline polycarbonate oligomers having ester substituted terminal groups may be obtained in a single step by reaction of an ester substituted diaryl carbonate such as bis-methyl salicyl carbonate with a dihydroxy aromatic compound such as bisphenol A in the presence of a transesterification catalyst such as sodium hydroxide. Alternatively, amorphous oligomeric polycarbonates incorporating ester substituted endgroups may be obtained through careful control of the melt reaction conditions. The amorphous oligomeric polycarbonates are crystallized upon exposure to solvent vapor and subsequently undergo solid state polymerization at synthetically useful reaction rates.
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公开(公告)号：AT360041T
公开(公告)日：2007-05-15
申请号：AT03808044
申请日：2003-07-17
Applicant: GEN ELECTRIC
Inventor： DAY JAMES , MCCLOSKEY PATRICK JOSEPH , SMIGELSKI PAUL MICHAEL JR
Abstract: Usually, polycarbonate polymerization is limited by the rate at which inhibitory byproducts, such as phenol and salicylate, can be removed from the reaction. To facilitate the removal of volatile reaction byproducts from the reaction as polymerization occurs, the present invention provides a spray mist reactor. The formation of a spray mist polymerization reaction allows for the creation of an enormous surface area for exchange of volatile byproducts. The present invention is applicable to polymerization of polycarbonate and its copolymers starting with monomers or oligomers. The invention may be used to increase throughput and minimize initial investment for a give melt process, especially the fast reacting bis(methylsalicylate) carbonate process.
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公开(公告)号：DE60211914T2
公开(公告)日：2007-01-25
申请号：DE60211914
申请日：2002-07-17
Applicant: GEN ELECTRIC
Inventor： MCCLOSKEY JOSEPH , DAY JAMES , SILVI NORBERTO , GIAMMATTEI HOWARD
IPC: C08G64/30
Abstract: Extrusion of a mixture of an ester-substituted diaryl carbonate, such as bis(methyl salicyl) carbonate, a dihydroxy aromatic compound such as bisphenol A and a transesterification catalyst such as tetrabutylphosphonium acetate (TBPA) affords polycarbonate having a weight average molecular weight of greater than 20,000 daltons. The extruder is equipped with one or more vacuum vents to remove by-product ester-substituted phenol. Similarly, a precursor polycarbonate having ester-substituted phenoxy endgroups, for example methyl salicyl endgroups, when subjected to extrusion affords a polycarbonate having a significantly increased molecular weight relative to the precursor polycarbonate. The reaction to form a higher molecular weight polycarbonate may be catalyzed by residual transesterification catalyst present in the precursor polycarbonate, or by a combination of any residual catalyst and an additional catalyst such as TBPA introduced in the extrusion step. Fries rearrangement products are not observed in the product polycarbonates.
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公开(公告)号：DE60019305T2
公开(公告)日：2006-03-09
申请号：DE60019305
申请日：2000-07-06
Applicant: GEN ELECTRIC
Inventor： HAIT BIKASH , DAY JAMES
Abstract: A method of crystallizing an aromatic polycarbonate prepolymer having a molecular weight of from about 1,000 to about 20,000 and having from about 5 to about 95 mole % aryl carbonate terminal end groups, based on total end groups, the method comprising effecting contact of the prepolymer with a crystallizing agent comprising an alcohol and an additive, wherein the additive is effective to increase the rate of solid state polymerization.
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公开(公告)号：DE69928965D1
公开(公告)日：2006-01-19
申请号：DE69928965
申请日：1999-06-24
Applicant: GEN ELECTRIC
Inventor： DAY JAMES , VARADARAJAN SATYANA
Abstract: Polymerization of polycarbonates is performed by first enhancing the crystallinity of a precursor polycarbonate, such as an oligomer, by contact in pellet form with an alkanol in the liquid or vapor state as non-solvent, and then conducting solid state polymerization in a stream of inert gas such as nitrogen. The solid state polymerization operation includes a stage of heating at a constant temperature in the range of about 215-225° C., optionally combined with a first heating stage at a constant temperature in the range of about 180-190° C. The method is adaptable to continuous operation and produces a polycarbonate having a number average molecular weight, as determined by gel permeation chromatography relative to polystyrene, of at least 15,000.
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