公开(公告)号：US4237067A

公开(公告)日：1980-12-02

申请号：US35756

申请日：1979-05-03

申请人： Erich Kuster ,  Bernhard Goossens ,  Eduard Barthell ,  Kurt Dahmen

发明人： Erich Kuster ,  Bernhard Goossens ,  Eduard Barthell ,  Kurt Dahmen

IPC分类号： C07C231/00 ,  B01J23/00 ,  B01J27/00 ,  C07C67/00 ,  C07C231/08 ,  C07C231/12 ,  C07C233/01 ,  C07C233/09 ,  C07C233/38 ,  C07C102/00

CPC分类号： C07C233/01

摘要： Process for the manufacture of .alpha.,.beta.-unsaturated N-substituted carboxylic acid amides of the general formula ##STR1## in which R.sup.1 represents H or CH.sub.3R.sup.2 represents H or CH.sub.3, andY represents a divalent straight-chain or branched organic radical having 2-30 carbon atoms, andR.sup.3 represents H or the radical of an amine of the formula --N(R.sup.4)(R.sup.5), in which R.sup.4 and R.sup.5 represent alkyl radicals having 1 to 4 carbon atoms,by reacting .beta.-substituted carboxylic acid amides of the formula ##STR2## in which Z represents OH or the radical R.sup.6 O--, in which R.sup.6 is an alkyl radical having 1 to 4 carbon atoms,with amines of the general formulaH.sub.2 N--(Y)--R.sub.3 IIIat temperatures in the range of 100.degree. to 200.degree. C., preferably 120.degree. to 175.degree. C., with the elimination of ammonia, and heating the resulting N-substituted .beta.-hydroxycarboxylic or .beta.-alkoxycarboxylic acid amides in the presence of catalysts, water or alcohol, respectively, being split off. The water is split off at temperatures of 100.degree.-250.degree. C. with acidic catalysts such as phosphoric acid, or basic catalysts such as sodium hydroxide, and alcohol is split off at 70.degree.-150.degree. C. with basic catalysts such as sodium or potassium hydroxide. The reaction product is separated by distillation, optionally in vacuo.

摘要翻译： 用于制备通式为其中R 1表示H或CH 3 R 2的H，CH 3的通式为其中R 1代表H或CH 3的α，β-不饱和N-取代羧酸酰胺的方法，Y表示二价直链或支链有机 具有2-30个碳原子的基团，R 3表示H或式-N（R 4）（R 5）的胺基，其中R 4和R 5表示具有1至4个碳原子的烷基，通过使β-取代的 式（II）的羧酸酰胺，其中Z表示OH或其中R6是具有1至4个碳原子的烷基的基团R6O-与通式为H2N-（Y）-R3的胺 III在100℃至200℃的温度范围内，优选120℃至175℃，同时除去氨，并加热得到的N-取代的β-羟基羧酸或β-烷氧基羧酸酰胺，在 催化剂，水或乙醇分别被分解。 用酸性催化剂如磷酸或碱性催化剂如氢氧化钠将水分解在100-250℃的温度下，并在70-150℃下用碱催化剂如钠 或氢氧化钾。 通过蒸馏分离反应产物，任选地在真空中。

公开(公告)号：US4113685A

公开(公告)日：1978-09-12

申请号：US682543

申请日：1976-05-03

申请人： Wolfgang Hubner ,  Eduard Barthell ,  Kurt Dahmen

发明人： Wolfgang Hubner ,  Eduard Barthell ,  Kurt Dahmen

IPC分类号： B01D21/01 ,  C02F1/54 ,  C08G12/46 ,  C08K5/17 ,  C22B3/22 ,  C22B34/12 ,  D21H17/45 ,  C08L61/20

CPC分类号： D21H17/455 ,  B01D21/01 ,  C02F1/54 ,  C08G12/46 ,  C08K5/17 ,  C22B3/22 ,  C22B34/1259 ,  Y02P10/234 ,  Y10S524/922

摘要： A flocculation, sedimentation, dehydration or retention composition comprising a stable dispersion of about 10 to 50% concentration by weight of a polymeric Mannich base in a mixture of water, a water-insoluble liquid and an emulsifier all present as a water-in-oil emulsion, the Mannich base comprising an NH-active polymer carrying carbonamide groups at least about 10% of which carry radicals of a reaction therewith of formaldehyde and a primary or secondary alkyl- or hydroxyalkyl-amine wherein the alkyl groups have up to about 18 carbon atoms, and a stabilizing amount of a water-soluble salt of a mono- or multivalent amine, alone or in admixture with a mono- or multivalent amine or ammonia, or of an ammonium salt of a mineral acid and ammonia, or of a carboxylic acid amide. The amine of the Mannich base is preferably dimethylamine or diethylamine and is used in approximately the same molar amount as the formaldehyde. The polymer preferably comprises acrylamide units and the polymerization may be effected either before or after reaction with the formaldehyde and amine.

摘要翻译： 一种絮凝，沉淀，脱水或保留组合物，其包含在水，水不溶性液体和乳化剂的混合物中的约10至50重量％的聚合曼尼希碱浓度的稳定分散体，其以油包水 乳液，所述曼尼希碱包含携带具有至少约10％的碳酰胺基团的NH-活性聚合物，其中甲醛与伯或仲烷基或羟烷基 - 胺反应的基团与烷基或羟烷基 - 胺反应，其中所述烷基具有至多约18个碳 原子和稳定量的单 - 或多价胺的水溶性盐，单独或与单价或多价胺或氨或无机酸和氨的铵盐或羧酸的铵盐混合 酸酰胺。 曼尼希碱的胺优选为二甲胺或二乙胺，并且以与甲醛大致相同的摩尔量使用。 聚合物优选包含丙烯酰胺单元，聚合可以在与甲醛和胺反应之前或之后进行。