公开(公告)号：JP2013216897A

公开(公告)日：2013-10-24

申请号：JP2013109951

申请日：2013-05-24

Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  KLAUS SCHNELL ,  STRUBE KARL-HERMANN ,  NIEBERLE JUERGEN ,  DIEING REINHOLD DR ,  POTZOLLI BERND DE ,  ANDREAS GRUBER ,  ULRICH FILGES ,  MEISTER MARTIN DR ,  NEUTZNER JOSEF ,  BOUQUET WOLFGANG ,  SCHUPP EBERHARD

IPC: C08F226/06

CPC classification number: C08F2/06

Abstract: PROBLEM TO BE SOLVED: To provide an improved method for producing a copolymer which is created by copolymerizing at least one hydrophilic N-vinyllactam and at least one hydrophobic comonomer and which is soluble in water to become a clear solution by free radical copolymerization in an organic solvent.SOLUTION: After 70-99 wt.% of used N-vinyllactam is transformed, a combination of: distilling 3-30% of the reaction mixture away and continuing polymerization in the same solvent; and performing the polymerization under pressure so as to avoid evaporation of components, is performed.

Abstract translation: 要解决的问题：提供一种制备共聚物的改进方法，该共聚物是通过使至少一种亲水性N-乙烯基内酰胺和至少一种疏水性共聚单体共聚而形成的，并且其可溶于水以通过在有机物中的自由基共聚而变成澄清溶液 溶剂：将70-99％（重量）的N-乙烯基内酰胺转化成以下组合：将3-30％的反应混合物蒸出并在相同的溶剂中继续聚合; 并在压力下进行聚合以避免部件蒸发。

公开(公告)号：JP2008138200A

公开(公告)日：2008-06-19

申请号：JP2007307529

申请日：2007-11-28

Applicant: Basf Se ,  ビーエーエスエフ ソシエタス・ヨーロピアBasf Se

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  KLAUS SCHNELL ,  STRUBE KARL-HERMANN ,  NIEBERLE JUERGEN ,  DIEING REINHOLD DR ,  POTZOLLI BERND DE ,  ANDREAS GRUBER ,  ULRICH FILGES ,  MEISTER MARTIN DR ,  NEUTZNER JOSEF ,  BOUQUET WOLFGANG ,  SCHUPP EBERHARD

IPC: C08F226/06

CPC classification number: C08F2/06

Abstract: PROBLEM TO BE SOLVED: To provide methods for producing vinyllactam copolymers, which comprise causing radical polymerization of water-soluble N-vinyllactam and hydrophobic comonomers in an organic solvent in the presence of an initiator. SOLUTION: The following process measures are combined appropriately and comprise (i) performing polymerization under reflux, (ii) adding at least 5 mol% of N-vinyllactam to the polymerization mixture if at least 70 mol% of the total amount of hydrophobic monomer used have completely reacted, (iii) returning the condensate formed in the reflux from below to the polymerization mixture, (iv) introducing the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) adding N-vinyllactam to the reflux, (vi) distilling off a portion of the solvent and continuing polymerization following conversion of 70 to 99% by weight of the N-vinyllactam used, (vii) introducing at least one monomer from below into the polymerization mixture, and (viii) performing polymerization under pressure so as to avoid vaporization of the component. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供制备乙烯基内酰胺共聚物的方法，其包括在引发剂存在下在有机溶剂中引发水溶性N-乙烯基内酰胺和疏水性共聚单体的自由基聚合。 解决方案：以下过程措施适当组合，包括（i）在回流下进行聚合反应，（ii）将至少5mol％的N-乙烯基内酰胺加入到聚合混合物中，如果其总量的至少70mol％ 使用的疏水性单体完全反应，（iii）将回流中形成的缩合物从下面返回到聚合混合物中，（iv）将引发剂以有机溶剂形式从有机溶剂中引入聚合混合物，（v） 将N-乙烯基内酰胺加入到回流中，（vi）蒸馏除去一部分溶剂，并在所用的N-乙烯基内酰胺的70至99重量％的转化后继续聚合，（vii）从下面将至少一种单体引入聚合 混合物，和（viii）在压力下进行聚合，以避免组分蒸发。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：DE102007052412A1

公开(公告)日：2008-06-05

申请号：DE102007052412

申请日：2007-11-02

Applicant: BASF SE

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHNELL KLAUS ,  STRUBE KARL-HERMANN ,  NIEBERLE JUERGEN ,  DIEING REINHOLD ,  POTZOLLI BERND DE ,  GRUBER ANDREAS ,  FILGES ULRICH ,  MEISTER MARTIN ,  NEUTZNER JOSEF ,  BOUQUET WOLFGANG ,  SCHUPP EBERHARD

IPC: C08F2/06 ,  C08F218/08 ,  C08F226/10

Abstract: Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein: (A) comprises (i) polymerization under reflux, and at least two of (ii), (iii), (iv), (v), (vi), and (vii), wherein (ii) comprises an addition of at least 5 mol % of N-vinyllactam to the polymerization mixture if at least 70 mol % of the total amount of hydrophobic monomer used have completely reacted, (iii) comprises return of condensate formed in the reflux from below to the polymerization mixture, (iv) comprises introduction of the initiator in the form of a solution in an organic solvent from below into the polymerization mixture, (v) comprises addition of N-vinyllactam to the reflux, (vi) comprises distilling off a portion of the organic solvent and continuing the polymerization following conversion of 70 to 99% by weight of the N-vinyllactam used, and (vii) comprises introduction of at least one monomer from below into the polymerization mixture; and wherein (B) comprises (viii) polymerization under a superatmospheric pressure such that vaporization of the polymerization components is avoided, and at least one of (i), (ii), (iii), (iv), (v), (vi), and (vii), with the proviso that a combination of (viii) with any of (i), (iii) or (v) is carried out sequentially.