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1. 发明专利

JP2005089464A Method for preparation of aliphatic oligocarbonate diol 审中-公开
标题翻译：制备异烟酸二醇的方法
公开(公告)号：JP2005089464A
公开(公告)日：2005-04-07
申请号：JP2004268724
申请日：2004-09-15
申请人： Bayer Materialscience Ag , バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG
发明人： HOFACKER STEFFEN , BACHMANN ROLF , BAECKER LOTHAR , WITOSSEK HERBERT
IPC分类号： C07C68/06 , C07B61/00 , C07C45/64 , C07C45/82 , C07C69/96 , C08G64/02 , C08G64/30
CPC分类号： C08G64/305 , C08G64/0208
摘要： PROBLEM TO BE SOLVED: To provide an improved method for preparation of aliphatic oligocarbonate diol by transesterification of dimethyl carbonate (DMC) with an aliphatic diol. SOLUTION: The invention relates to a process for preparing oligocarbonate diol, comprising a process reacting dimethyl carbonate with the diol component in the presence of a transesterification catalyst at a pressure of 3 to 6 bar and at temperatures of 100-200°C., by continuously introducing the DMC into the liquid phase of the reaction mixture and continuously removing from the reaction mixture by distillation of the methanol which forms as a gaseous methanol/DMC mixture, a process reducing the temperature of the reaction mixture on completion of the continuous metered addition of DMC, to ≤190°C, and reducing the pressure to atmospheric pressure, such that further methanol/DMC mixture is distilled off in parallel, further reducing the pressure after atmospheric pressure has been attained and, after a pressure of ≤100 mbar has been attained, introducing an inert gas stream into the reaction mixture. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：提供通过碳酸二甲酯（DMC）与脂族二醇的酯交换制备脂肪族低聚碳酸酯二醇的改进方法。解决方案：本发明涉及一种制备低聚碳酸酯二醇的方法，包括在酯交换催化剂存在下，在3至6巴的压力和100-200℃的温度下使碳酸二甲酯与二醇组分反应的方法通过连续地将DMC引入反应混合物的液相，并通过蒸馏形成甲醇/ DMC混合气体的甲醇从反应混合物中连续除去，在完成反应混合物后，降低反应混合物的温度连续计量加入DMC至≤190℃，并将压力降至大气压，使得另外甲醇/ DMC混合物平行蒸馏掉，进一步降低大气压力后的压力，压力≤ 已经达到100毫巴，将惰性气流引入反应混合物中。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005089463A Method for preparation of aliphatic oligocarbonate polyol 有权
标题翻译：制备高分子聚氧乙烯醚的方法
公开(公告)号：JP2005089463A
公开(公告)日：2005-04-07
申请号：JP2004268720
申请日：2004-09-15
申请人： Bayer Materialscience Ag , バイエル・マテリアルサイエンス・アクチェンゲゼルシャフトBayer MaterialScience AG
发明人： HOFACKER STEFFEN , WITOSSEK HERBERT , BAECKER LOTHAR
IPC分类号： C07C68/06 , C07B61/00 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/30
CPC分类号： C08G64/305
摘要： PROBLEM TO BE SOLVED: To provide an improved method for preparation of an aliphatic oligocarbonate polyol by transesterification of dimethyl carbonate (DMC) with an aliphatic polyol component.
SOLUTION: The invention relates to the process for preparing oligocarbonate polyols comprising a step (A) reacting dimethyl carbonate with the polyol component, in the presence of an ytterbium compound transesterification catalyst, at pressures of atmospheric pressure to 6 bar and temperatures of 100-170°C., and (B) a step distilling methanol/dimethyl carbonate mixture in parallel, reducing the pressure further until the pressure reaches ≤100 mbar so that the temperature of the reaction mixture does not exceed 195°C, and then introducing an inert gas stream into the reaction mixture.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供通过碳酸二甲酯（DMC）与脂族多元醇组分的酯交换制备脂族低聚碳酸酯多元醇的改进方法。解决方案：本发明涉及制备低聚碳酸酯多元醇的方法，该方法包括在镱化合物酯交换催化剂存在下，在大气压至6巴的压力下将碳酸二甲酯与多元醇组分反应的步骤（A） 100-170℃，和（B）平行地蒸馏甲醇/二甲基碳酸酯混合物的步骤，进一步降低压力直至压力达到100mbar，使得反应混合物的温度不超过195℃，然后将惰性气流引入反应混合物中。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

CA2481978A1 PREPARATION OF ALIPHATIC OLIGOCARBONATE DIOLS 未知
公开(公告)号：CA2481978A1
公开(公告)日：2005-03-19
申请号：CA2481978
申请日：2004-09-16
申请人： BAYER MATERIALSCIENCE AG
发明人： WITOSSEK HERBERT , BACHMANN ROLF , BAECKER LOTHAR , HOFACKER STEFFEN
IPC分类号： C07C68/06 , C07B61/00 , C07C45/64 , C07C45/82 , C07C69/96 , C08G64/02 , C08G64/30
摘要： The present invention relates to an improved process for preparing aliphat ic oligocarbonate diols by transesterifying dimethyl carbonate (DMC) with aliphatic diols.

4. 发明专利

PT1520869E PROCESSO PARA A PREPARAÇÃO DE OLIGOCARBONATOPOLIÓIS ALIFÁTICOS 未知
公开(公告)号：PT1520869E
公开(公告)日：2010-03-31
申请号：PT04021317
申请日：2004-09-08
申请人： BAYER MATERIALSCIENCE AG
发明人： WITOSSEK HERBERT , STEFFEN HOFACKER DR , BAECKER LOTHAR
IPC分类号： C07C68/06 , C08G64/30 , C07B61/00 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/02

5. 发明专利

HK1078073A1 PREPARATION OF ALIPHATIC OLIGOCARBONATE DIOLS 未知
公开(公告)号：HK1078073A1
公开(公告)日：2006-03-03
申请号：HK05110058
申请日：2005-11-10
申请人： BAYER MATERIALSCIENCE AG
发明人： HOFACKER STEFFEN , BACHMANN ROLF , BAECKER LOTHAR , WITOSSEK HERBERT
IPC分类号： C07C68/06 , C07B61/00 , C07C20090101 , C07C45/64 , C07C45/82 , C07C69/96 , C08G64/02 , C08G64/30
摘要： Preparation of oligocarbonate diols is by (1) reacting dimethylcarbonate (DMC) with a diol component in presence of a transesterification catalyst at 100-200[deg]C/3-6 bar with the DMC being continuously fed to the liquid phase and the methanol/DMC gas distilled off; (2) on completion of the DMC feed adjusting to =190[deg]C/normal pressure while distilling off further methanol/DMC; and (3) feeding-in an inert gas when pressure reaches =100 mbar.

6. 发明专利

DE10343471A1 未知
公开(公告)号：DE10343471A1
公开(公告)日：2005-05-12
申请号：DE10343471
申请日：2003-09-19
申请人： BAYER MATERIALSCIENCE AG
发明人： HOFACKER STEFFEN , BACHMANN ROLF , BAECKER LOTHAR , WITTOSEK HERBERT
IPC分类号： C07C68/06 , C07B61/00 , C07C45/64 , C07C45/82 , C07C69/96 , C08G64/02 , C08G64/30
摘要： Preparation of oligocarbonate diols is by (1) reacting dimethylcarbonate (DMC) with a diol component in presence of a transesterification catalyst at 100-200[deg]C/3-6 bar with the DMC being continuously fed to the liquid phase and the methanol/DMC gas distilled off; (2) on completion of the DMC feed adjusting to =190[deg]C/normal pressure while distilling off further methanol/DMC; and (3) feeding-in an inert gas when pressure reaches =100 mbar.

7. 发明专利

DE502004010700D1 未知
公开(公告)号：DE502004010700D1
公开(公告)日：2010-03-18
申请号：DE502004010700
申请日：2004-09-08
申请人： BAYER MATERIALSCIENCE AG
发明人： HOFACKER STEFFEN DR , WITOSSEK HERBERT DR , BAECKER LOTHAR
IPC分类号： C07C68/06 , C08G64/30 , C07B61/00 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/02
摘要： Preparation of oligocarbonate polyol involves reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at 100 - 170[deg]C; and reducing the pressure and passing an inert gas stream into the reaction mixture. Preparation of oligocarbonate polyol involves (i) reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at a temperature of 100 - 170[deg]C; and (ii) reducing the pressure and passing an inert gas stream into the reaction mixture. The step i) involves (n >= 2) successive substeps (ia) in which (i) is 1 - n, and in each substep (ia), a pressure (P 1) of 3 - 6 bar is established in the reactor, a portion (x i) of the total amount of dimethyl carbonate is added to the liquid phase of the reaction mixture and, after a reaction time at a temperature, the methanol formed in the reaction is removed from the reaction mixture by distillation in the form of a gaseous methanol/dimethyl carbonate mixture, in the course of which the pressure is reduced, at constant temperature, from (P 1) to a pressure (P 2), and in the last substep (ib) the portion (x n) still absent from the total amount is added and the pressure (P n) at the end of the substep is atmospheric pressure.

8. 发明专利

HK1078308A1 PREPARATION OF ALIPHATIC OLIGOCARBONATE POLYOLS 未知
公开(公告)号：HK1078308A1
公开(公告)日：2006-03-10
申请号：HK05110243
申请日：2005-11-16
申请人： BAYER MATERIALSCIENCE AG
发明人： HOFACKER STEFFEN , WITOSSEK HERBERT , BAECKER LOTHAR
IPC分类号： C07C68/06 , C07B61/00 , C07C20060101 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/30
摘要： Preparation of oligocarbonate polyol involves reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at 100 - 170[deg]C; and reducing the pressure and passing an inert gas stream into the reaction mixture. Preparation of oligocarbonate polyol involves (i) reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at a temperature of 100 - 170[deg]C; and (ii) reducing the pressure and passing an inert gas stream into the reaction mixture. The step i) involves (n >= 2) successive substeps (ia) in which (i) is 1 - n, and in each substep (ia), a pressure (P 1) of 3 - 6 bar is established in the reactor, a portion (x i) of the total amount of dimethyl carbonate is added to the liquid phase of the reaction mixture and, after a reaction time at a temperature, the methanol formed in the reaction is removed from the reaction mixture by distillation in the form of a gaseous methanol/dimethyl carbonate mixture, in the course of which the pressure is reduced, at constant temperature, from (P 1) to a pressure (P 2), and in the last substep (ib) the portion (x n) still absent from the total amount is added and the pressure (P n) at the end of the substep is atmospheric pressure.

9. 发明专利

CA2481997A1 PREPARATION OF ALIPHATIC OLIGOCARBONATE POLYOLS 未知
公开(公告)号：CA2481997A1
公开(公告)日：2005-03-19
申请号：CA2481997
申请日：2004-09-16
申请人： BAYER MATERIALSCIENCE AG
发明人： BAECKER LOTHAR , WITOSSEK HERBERT , HOFACKER STEFFEN
IPC分类号： C07C68/06 , C07B61/00 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/30
摘要： The present invention relates to an improved process for preparing aliphat ic oligocarbonate polyols by transesterifying dimethyl carbonate (DMC) with an aliphatic polyol component.

10. 发明专利

AT456601T 未知
公开(公告)号：AT456601T
公开(公告)日：2010-02-15
申请号：AT04021317
申请日：2004-09-08
申请人： BAYER MATERIALSCIENCE AG
发明人： HOFACKER STEFFEN , WITOSSEK HERBERT , BAECKER LOTHAR
IPC分类号： C07C68/06 , C08G64/30 , C07B61/00 , C07C45/64 , C07C45/82 , C07C68/08 , C07C69/96 , C08G64/02
摘要： Preparation of oligocarbonate polyol involves reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at 100 - 170[deg]C; and reducing the pressure and passing an inert gas stream into the reaction mixture. Preparation of oligocarbonate polyol involves (i) reacting dimethyl carbonate with a polyol component in the presence of an ytterbium compound transesterification catalyst at a pressure of atmospheric pressure to 6 bar and at a temperature of 100 - 170[deg]C; and (ii) reducing the pressure and passing an inert gas stream into the reaction mixture. The step i) involves (n >= 2) successive substeps (ia) in which (i) is 1 - n, and in each substep (ia), a pressure (P 1) of 3 - 6 bar is established in the reactor, a portion (x i) of the total amount of dimethyl carbonate is added to the liquid phase of the reaction mixture and, after a reaction time at a temperature, the methanol formed in the reaction is removed from the reaction mixture by distillation in the form of a gaseous methanol/dimethyl carbonate mixture, in the course of which the pressure is reduced, at constant temperature, from (P 1) to a pressure (P 2), and in the last substep (ib) the portion (x n) still absent from the total amount is added and the pressure (P n) at the end of the substep is atmospheric pressure.

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