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公开(公告)号：US5055606A
公开(公告)日：1991-10-08
申请号：US588476
申请日：1990-09-25
IPC分类号： C07C319/28 , C07C323/52
CPC分类号： C07C319/28
摘要： 3-alkylthiopropionic acids which are esterified with pentaerythritol are provided. The esters are solvent refined with especially effective organic solvent blends. Tetraesters thus processed are especially useful as stabilizers for polymer resins and polymers.
摘要翻译： 提供了用季戊四醇酯化的3-烷基硫代丙酸。 酯是用特别有效的有机溶剂混合物进行溶剂精制。 如此处理的四酯特别可用作聚合物树脂和聚合物的稳定剂。
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公开(公告)号：US5198486A
公开(公告)日：1993-03-30
申请号：US770991
申请日：1991-10-01
IPC分类号： C07C319/18 , C07C323/52 , C08K5/38
CPC分类号： C08K5/38 , C07C319/18
摘要： 3-alkylthiopropionic acids are provided which are a direct addition reaction product of an alkylmercaptan and acrylic acid or an alkali metal salt thereof, the reaction being carried out by heating the reactants in the presence of an aqueous alkaline solution having a pH of at least about 11. The acids can be esterified with pentaerythritol in order to form tetraesters which are especially useful as stabilizers for polymer resins and polymers.
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公开(公告)号：US5057622A
公开(公告)日：1991-10-15
申请号：US627542
申请日：1990-12-10
IPC分类号： C07C319/18 , C07C323/52 , C08K5/38
CPC分类号： C08K5/38 , C07C319/18
摘要： 3-alkylthiopropionic acids are provided which are a direct addition reaction product of an alkylmercaptan and acrylic acid of an alkali metal salt thereof, the reaction being carried out by heating the reactants in the presence of an aqueous alkaline solution having a pH of at least about 11. The acids can be esterified with pentaerythritol in order to form tetraesters which are especially useful as stabilizers for polymer resins and polymers.
摘要翻译： 提供了3-烷基硫代丙酸，其是烷基硫醇和其碱金属盐的丙烯酸的直接加成反应产物，该反应通过在碱性水溶液存在下加热反应来进行，所述碱性水溶液的pH至少约为 酸可以用季戊四醇酯化，以形成四酯，其特别用作聚合物树脂和聚合物的稳定剂。
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4.发明授权Preparation of a 2-aralkyl-5,5-dialkyl-1,3,2-dioxaphosphorinan-2-one from 2-aralkoxy-5,5-dialkyl-1,3,2-dioxaphosphorinane 失效由2-芳烷氧基-5,5-二烷基-1,3,2-二氧杂磷杂环己烷制备2-芳烷基-5,5-二烷基-1,3,2-二氧杂磷杂环己烷-2-酮
公开(公告)号：US4420437A
公开(公告)日：1983-12-13
申请号：US290532
申请日：1981-08-06
IPC分类号： C07F9/6571 , C07F9/6574 , C08K5/5357 , C07F9/40
CPC分类号： C08K5/5357 , C07F9/657181 , C07F9/65742
摘要： A process for preparing a 2-aralkyl-5,5-dialkyl-1,3,2-dioxaphosphorinan-2-one by heating a 2-aralkyloxy-5,5-dialkyl-1,3,2-dioxaphosphorinane such as the novel 2-benzyloxy-5,5-dimethyl-1,3,2-dioxaphosphorinane, with a catalytic quantity of an aralkyl halide. The aralkyl halide can be recovered and recycled.
摘要翻译： 通过加热2-芳烷氧基-5,5-二烷基-1,3,2-二氧杂磷杂环己烷如新颖的制备2-芳烷基-5,5-二烷基-1,3,2-二氧杂磷杂环己烷-2-酮的方法 2-苄氧基-5,5-二甲基-1,3,2-二氧杂磷杂环己烷与催化量的芳烷基卤化物反应。 可以回收和再循环芳烷基卤化物。
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5.发明授权
公开(公告)号：US5208283A
公开(公告)日：1993-05-04
申请号：US770992
申请日：1991-10-01
IPC分类号： C07C323/52 , C08K5/37
CPC分类号： C08K5/37 , C07C323/52
摘要： Mixed esters of pentaerythritol and the like with at least two different 3-alkylthiopropionic acids are provided. Each acid from which the ester is prepared has a different alkyl group. This facilitates tailoring the mixed ester for use as a stabilizer which is especially compatible with a particular polymer resin material. Preferably, each 3-alkylthiopropionic acid is prepared by a direct addition reaction between an alkylmercaptan and acrylic acid or an alkali metal salt thereof, the reaction being carried out by heating the reactants in the presence of an aqueous alkaline solution.
摘要翻译： 提供了季戊四醇等与至少两种不同的3-烷硫基丙酸的混合酯。 制备酯的每种酸都具有不同的烷基。 这有助于调整混合酯以用作与特定聚合物树脂材料特别相容的稳定剂。 优选地，每个3-烷硫基丙酸通过烷基硫醇和丙烯酸或其碱金属盐之间的直接加成反应来制备，该反应通过在碱性水溶液的存在下加热反应物来进行。
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公开(公告)号：US5057567A
公开(公告)日：1991-10-15
申请号：US467898
申请日：1990-01-22
IPC分类号： C07C319/20 , C07C323/52 , C08K5/10 , C08K5/103 , C08K5/36 , C08K5/37
CPC分类号： C07C323/52 , C08K5/37
摘要： Mixed esters of pentaerythritol and the like with at least two different 3-alkylthiopropionic acids are provided. Each acid from which the ester is prepared has a different alkyl group. This facilitates tailoring the mixed esters for use as a stabilizer which is especially compatible with a particular polymer resin material. Preferably, each 3-alkylthiopropionic acid is prepared by a direct addition reaction between an alkylmercaptan and acrylic acid or an alkali metal salt thereof, the reaction being carried out by heating the reactants in the presence of an aqueous alkaline solution.
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