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    • 3. 发明授权
    • Low molecular weight polymers of acrylic esters
    • 丙烯酸酯的低分子量聚合物
    • US4983760A
    • 1991-01-08
    • US461744
    • 1990-01-08
    • Georg BobarKlaus SchnellGerd SchroederEckehardt Wistuba
    • Georg BobarKlaus SchnellGerd SchroederEckehardt Wistuba
    • C08F2/00C08F2/04C08F2/06C08F2/38C08F20/00C08F20/12C08L33/08C09D7/12C09J11/08
    • C08F20/12
    • Low molecular weight polymers of acrylic esters which are suitable for use as external plasticizers in coated compositions on a synthetic resin basis are obtainable by subjecting(a) from 80 to 100% by weight of at least one acrylic ester of C.sub.1 -C.sub.8 -alkanol (monomer I) and(b) 0 to 20% by weight of one or more other copolymerizable monomers (monomer II)to a free radical polymerization in a solution in isopropanol in a pressure vessel at 130.degree.-140.degree. C. by introducing first from 70 to 95% by weight of a solvent and adding the remainder of the polymerization batch continuously over 3-7 hours in separate portions of which one contains the monomers and, after the polymerization has ended, distilling off the solvent under reduced pressure, the weight proportion of solvent being 5-15% by weight based on the monomers, the weight proportion of initiator being 0.5-3% by weight based on the monomers, and the half-life of the initiator at the polymerization temperature being from 10 seconds to 3 hours.
    • 通过使(a)80-100重量%的至少一种C 1 -C 8 - 链烷醇的丙烯酸酯(例如,丙烯酸酯) 单体I)和(b)0〜20重量%的一种或多种其它可共聚单体(单体II)与在130-140℃的压力容器中的异丙醇溶液中的自由基聚合反应,首先从 70至95重量%的溶剂,并在3-7小时内连续加入其余的聚合批料,其中单体含有单体,聚合结束后,在减压下蒸除溶剂,重量 基于单体,溶剂的比例为5-15重量%,引发剂的重量比例基于单体为0.5-3重量%,引发剂在聚合温度下的半衰期为10秒至 3小时。
    • 5. 发明授权
    • Methods of producing water-soluble, non-turbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer
    • 制备至少一种水溶性N-乙烯基内酰胺和至少一种疏水性共聚单体的水溶性,非混浊共聚物的方法
    • US07629425B2
    • 2009-12-08
    • US11947223
    • 2007-11-29
    • Rainer DobrawaRalf WidmaierKlaus SchnellKarl-Hermann StrubeJürgen NieberleReinhold DieingBernd de PotzolliAndreas GruberUlrich FilgesMartin MeisterJosef NeutznerWolfgang BouquetEberhard Schupp
    • Rainer DobrawaRalf WidmaierKlaus SchnellKarl-Hermann StrubeJürgen NieberleReinhold DieingBernd de PotzolliAndreas GruberUlrich FilgesMartin MeisterJosef NeutznerWolfgang BouquetEberhard Schupp
    • C08F26/10
    • C08F2/06
    • 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.
    • 制备乙烯基内酰胺共聚物的方法包括:提供至少一种水溶性N-乙烯基内酰胺; 提供至少一种疏水性共聚单体; 以及在引发剂存在下,使所述至少一种水溶性N-乙烯基内酰胺和所述至少一种疏水性共聚单体在有机溶剂中进行自由基聚合,所述方法选自A和B ; 其中:(A)包括(i)在回流下聚合,和(ii),(iii),(iv),(v),(vi)和(vii)中的至少两个,其中(ii) 的至少5摩尔%的N-乙烯基内酰胺加入到聚合混合物中,如果使用的疏水性单体总量的至少70摩尔%已经完全反应,(iii)包括将从回流中形成的缩合物返回到聚合混合物中, (iv)包括将引发剂以有机溶剂形式从有机溶剂中引入聚合混合物中,(v)包括向回流物中加入N-乙烯基内酰胺,(vi)包括蒸馏除去一部分有机溶剂 并且在所使用的N-乙烯基内酰胺的70至99重量%的转化后继续聚合,和(vii)包括将下述至少一种单体引入聚合混合物中; (ⅰ),(ⅱ),(ⅲ),(ⅳ),(ⅴ),(Ⅴ),(Ⅴ),(Ⅳ),(Ⅳ), vi)和(vii),条件是(viii)与(i),(iii)或(v)中任何一个的组合依次进行。
    • 9. 发明申请
    • METHODS OF PRODUCING WATER-SOLUBLE, NON-TURBID COPOLYMERS OF AT LEAST ONE WATER-SOLUBLE N-VINYLLACTAM AND AT LEAST ONE HYDROPHOBIC COMONOMER
    • 生产水溶性方法,至少一种水溶性N-乙烯基甲酰胺和至少一种疏水性共聚物的非涡轮共聚物
    • US20080125554A1
    • 2008-05-29
    • US11947223
    • 2007-11-29
    • Rainer DobrawaRalf WidmaierKlaus SchnellKarl-Hermann StrubeJurgen NieberleReinhold DieingBernd de PotzolliAndreas GruberUlrich FilgesMartin MeisterJosef NeutznerWolfgang BouquetEberhard Schupp
    • Rainer DobrawaRalf WidmaierKlaus SchnellKarl-Hermann StrubeJurgen NieberleReinhold DieingBernd de PotzolliAndreas GruberUlrich FilgesMartin MeisterJosef NeutznerWolfgang BouquetEberhard Schupp
    • C08F4/36
    • C08F2/06
    • 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.
    • 制备乙烯基内酰胺共聚物的方法包括:提供至少一种水溶性N-乙烯基内酰胺; 提供至少一种疏水性共聚单体; 以及在引发剂存在下,使所述至少一种水溶性N-乙烯基内酰胺和所述至少一种疏水性共聚单体在有机溶剂中进行自由基聚合,所述方法选自A和B ; 其中:(A)包括(i)在回流下聚合,和(ii),(iii),(iv),(v),(vi)和(vii)中的至少两个,其中(ii) 的至少5摩尔%的N-乙烯基内酰胺加入到聚合混合物中,如果使用的疏水性单体总量的至少70摩尔%已经完全反应,(iii)包括将从回流中形成的缩合物返回到聚合混合物中, (iv)包括将引发剂以有机溶剂形式从有机溶剂中引入聚合混合物中,(v)包括向回流物中加入N-乙烯基内酰胺,(vi)包括蒸馏除去一部分有机溶剂 并且在所使用的N-乙烯基内酰胺的70至99重量%的转化后继续聚合,和(vii)包括将下述至少一种单体引入聚合混合物中; (ⅰ),(ⅱ),(ⅲ),(ⅳ),(ⅴ),(Ⅴ),(Ⅴ),(Ⅳ),(Ⅳ), vi)和(vii),条件是(viii)与(i),(iii)或(v)中任何一个的组合依次进行。