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

US06518391B1 Method of polycarbonate preparation by solid state polymerization 失效
标题翻译：通过固态聚合制备聚碳酸酯的方法
公开(公告)号：US06518391B1
公开(公告)日：2003-02-11
申请号：US09911505
申请日：2001-07-24
申请人： Patrick Joseph McCloskey , James Day , Paul Michael Smigelski, Jr. , Timothy Brydon Burnell
发明人： Patrick Joseph McCloskey , James Day , Paul Michael Smigelski, Jr. , Timothy Brydon Burnell
IPC分类号： C08G6400
CPC分类号： C08G64/307 , C08G64/06
摘要： 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.
摘要翻译：带有酯取代的端基的部分结晶的聚碳酸酯低聚物的固态聚合以有效的反应速率发生，尽管它们具有高水平的封端。具有酯取代的末端基的部分结晶的聚碳酸酯低聚物可以通过酯交换催化剂如钠的存在下，酯取代的碳酸二碳酸酯如碳酸双甲基酯与二羟基芳族化合物如双酚A的反应在一个步骤中获得氢氧化物。或者，可以通过仔细控制熔融反应条件来获得引入酯取代的端基的无定形低聚聚碳酸酯。无定形低聚聚碳酸酯在暴露于溶剂蒸气下结晶，随后在合成有用的反应速率下进行固态聚合。

2. 发明授权

US06184334B2 Alkali metal salts of oxoacids of sulfur as polymerization catalysts 有权
标题翻译：硫的含氧酸的碱金属盐作为聚合催化剂
公开(公告)号：US06184334B2
公开(公告)日：2001-02-06
申请号：US09411274
申请日：1999-10-04
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr.
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr.
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： The present invention relates to a method for the preparation of polycarbonate comprising preparing a polycarbonate by a melt process by reacting a diphenol and a diaryl carbonate in the presence of a catalytically effective amount of one or more alkali metal salts of oxoacids of sulfur.
摘要翻译：本发明涉及一种制备聚碳酸酯的方法，包括通过在催化有效量的一种或多种含硫酸的硫酸的碱金属盐的存在下使二酚和碳酸二芳基酯通过熔融法制备聚碳酸酯。

3. 发明授权

US06576801B2 Process for the neutralization of residual acid species in crude dihydric phenols 有权
公开(公告)号：US06576801B2
公开(公告)日：2003-06-10
申请号：US09683866
申请日：2002-02-25
申请人： Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Patrick Joseph McCloskey
发明人： Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Patrick Joseph McCloskey
IPC分类号： C07C3768
CPC分类号： C07C37/86 , C07C39/16
摘要： The present invention relates to a method of neutralizing residual acid species in crude dihydric phenol comprising the step of introducing a thermally stable organic base selected from the group consisting of tetraalkyl phosphonium hydroxides, tetraorganophosphonium carboxylic acid salts, or a mixture thereof into the crude dihydric phenol.

4. 发明授权

US06300460B1 Mixed dialkali metal salts of sulfuric acid containing at least one cesium equivalent as polymerization catalysts 有权
标题翻译：含有至少一种铯当量的硫酸的混合二碱金属盐作为聚合催化剂
公开(公告)号：US06300460B1
公开(公告)日：2001-10-09
申请号：US09612652
申请日：2000-07-06
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr. , Alberto Nisoli
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr. , Alberto Nisoli
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： This invention relates to mixed dialkali metal salts of sulfuric acid containing at least one cesium equivalent useful in catalyst systems in melt polymerizations. The catalysts provide product with low branching side reaction products and good properties.
摘要翻译：本发明涉及在熔融聚合中含有可用于催化剂体系的至少一种铯当量的硫酸混合二碱金属盐。催化剂提供具有低支化反应产物和良好性能的产物。

5. 发明授权

US06228973B1 Method for preparing high molecular weight polycarbonate 有权
标题翻译：制备高分子量聚碳酸酯的方法
公开(公告)号：US06228973B1
公开(公告)日：2001-05-08
申请号：US09584984
申请日：2000-06-02
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr. , Johan Pieter Anna Heuts , Hendricus Franciscus Zirkzee
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr. , Johan Pieter Anna Heuts , Hendricus Franciscus Zirkzee
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： A method of preparing polycarbonate by the melt process comprising the steps of: a) melting a dihydric phenol and a diester of carbonic acid for a time and at a temperature sufficient to form a melt; and thereafter introducing a catalyst composition comprising a tetraorganophosphonium salt or a derivative thereof and 1) an alkali and/or alkali earth metal compound or derivative thereof or 2) a less active alkali and/or alkali earth metal derivative thereof into the melt; and b) oligomerizing the product from step a) to a number average molecular weight of from about 3000 to about 7500; and c) polymerizing the product from step b) to a number average molecular weight of from about 16,000 to about 35,000.
摘要翻译：通过熔融法制备聚碳酸酯的方法包括以下步骤：a）在足以形成熔体的时间和温度下熔化二元酚和碳酸二酯; 然后引入含有四有机鏻盐或其衍生物的催化剂组合物，和1）碱金属和/或碱土金属化合物或其衍生物，或2）其活性较低的碱金属和/或碱土金属衍生物; 和b）使来自步骤a）的产物低聚至约3000至约7500的数均分子量; 和c）将来自步骤b）的产物聚合至数均分子量为约16,000至约35,000。

6. 再颁专利

USRE38995E1 Interfacial method of preparing ester-substituted diaryl carbonates 有权
公开(公告)号：USRE38995E1
公开(公告)日：2006-02-28
申请号：US10642007
申请日：2003-08-15
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Daniel Joseph Brunelle , Elliott West Shanklin , Paul Michael Smigelski, Jr. , Ganesh Kailasam
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Daniel Joseph Brunelle , Elliott West Shanklin , Paul Michael Smigelski, Jr. , Ganesh Kailasam
IPC分类号： C07C69/96
CPC分类号： C07C68/02 , C07C69/96
摘要： High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was greater than 9.3. Using the method of the present invention conversions of greater than 99% were obtained whereas under standard conditions using triethylamine as the catalyst conversions were limited to 70-75% of the methyl salicylate starting material even with a 20 mole % excess of added phosgene. The optimized conditions of the of the present invention use only a slight excess of phosgene and represent an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.

7. 发明授权

US06252035B1 Salts of chelating agents as polymerization catalysts 失效
标题翻译：螯合剂的盐作为聚合催化剂
公开(公告)号：US06252035B1
公开(公告)日：2001-06-26
申请号：US09451033
申请日：1999-11-29
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr.
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Paul Michael Smigelski, Jr.
IPC分类号： C08G6400
CPC分类号： C08G64/307
摘要： The present invention relates to a method for the preparation of polycarbonate comprising preparing a polycarbonate by a melt process by reacting a diphenol and a diaryl carbonate in the presence of a catalytically effective amount of one or more alkali and or alkali earth metal salts of chelating agents. Suitable chelating agents include nitrilotriacetate and EDTA.
摘要翻译：本发明涉及一种制备聚碳酸酯的方法，包括通过使催化有效量的一种或多种螯合剂的碱金属和/或碱土金属盐存在下使二酚和碳酸二芳基酯通过熔融法制备聚碳酸酯。合适的螯合剂包括次氮基三乙酸钠和EDTA。

8. 发明授权

US06548623B2 Method of polycarbonate preparation 有权
标题翻译：聚碳酸酯制备方法
公开(公告)号：US06548623B2
公开(公告)日：2003-04-15
申请号：US09911443
申请日：2001-07-24
申请人： Daniel Joseph Brunelle , Patrick Joseph McCloskey , Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Ganesh Kailasam
发明人： Daniel Joseph Brunelle , Patrick Joseph McCloskey , Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Ganesh Kailasam
IPC分类号： C08G6400
CPC分类号： C08G64/06 , C08G64/04 , C08G64/14 , C08G64/307
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.
摘要翻译：含有低或不可检测水平的Fries重排产物的聚碳酸酯可以通过二羟基芳族化合物如双酚A与酯取代的二芳基碳酸酯例如水杨酸甲酯的碳酸二芳基酯，碳酸双甲基酯的熔融反应来制备。通过抑制Fries反应的高效催化剂体系和相对于使用碳酸二苯酯的类似聚合反应所需的温度使用较低熔融聚合温度的综合结果，可以获得低水平的油炸产品。

9. 发明授权

US06420588B1 Interfacial method of preparing ester-substituted diaryl carbonates 有权
标题翻译：制备酯取代的碳酸二芳基酯的界面方法
公开(公告)号：US06420588B1
公开(公告)日：2002-07-16
申请号：US09911440
申请日：2001-07-24
申请人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Daniel Joseph Brunelle , Elliott West Shanklin , Paul Michael Smigelski, Jr. , Ganesh Kailasam
发明人： Patrick Joseph McCloskey , Timothy Brydon Burnell , Daniel Joseph Brunelle , Elliott West Shanklin , Paul Michael Smigelski, Jr. , Ganesh Kailasam
IPC分类号： C07C6996
CPC分类号： C07C68/02 , C07C69/96
摘要： High yields of ester-substituted diary carbonates such as bis-methyl salicyl carbonate were obtained by the condensation of methyl salicylate with phosgene in the presence of a phase transfer catalyst (PTC) in an interfacial reaction system in which the pH of the aqueous phase was greater than 9.3. Using the method of the present invention conversions of greater than 99% were obtained whereas under standard conditions using triethylamine as the catalyst conversions were limited to 70-75% of the methyl salicylate starting material even with a 20 mole % excess of added phosgene. The optimized conditions of the of the present invention use only a slight excess of phosgene and represent an attractive route for the manufacture of bis methyl salicyl carbonate and ester-substituted diaryl carbonates generally.
摘要翻译：通过在界面反应体系中存在相转移催化剂（PTC）的情况下，通过水杨酸甲酯与光气的缩合得到高产率的酯取代的二元碳酸酯，其中水相的pH为大于9.3。使用本发明的方法获得大于99％的转化率，而在使用三乙胺的标准条件下，即使使用20摩尔％过量的加入的光气，催化剂转化率也限于水杨酸甲酯起始原料的70-75％。本发明的优化条件仅使用轻微过量的光气，并且代表通常用于制造碳酸双甲基水杨酸酯和酯取代的二芳基碳酸酯的有吸引力的途径。

10. 发明授权

US06414106B1 Process for the neutralization of residual acid species in crude dihydric phenols 有权
公开(公告)号：US06414106B1
公开(公告)日：2002-07-02
申请号：US09798221
申请日：2001-03-02
申请人： Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Patrick Joseph McCloskey
发明人： Paul Michael Smigelski, Jr. , Timothy Brydon Burnell , Patrick Joseph McCloskey
IPC分类号： C08G6400
CPC分类号： C07C37/86 , C07C39/16
摘要： The present invention relates to a method of neutralizing residual acid species in crude dihydric phenol comprising the step of introducing a thermally stable organic base selected from the group consisting of tetraalkyl phosphonium hydroxides, tetraorganophosphonium carboxylic acid salts, or a mixture thereof into the crude dihydric phenol.

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