| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | 改进的丙烯酸－2－乙基己酯生产方法 | CN02120127.7 | 2002-04-02 | CN1384092A | 2002-12-11 | A·里昂德尔; J·贝萨勒姆 |
| 根据用硫酸催化的用2－乙基己醇直接酯化丙烯酸的方法,生产丙烯酸－2－乙基己酯,受到酯化的丙烯酸用至少一种稳定剂进行稳定,所述酯化后接着用碱中和所得到的粗反应混合物(B1),得到的盐进入所述混合物的水相(A1),分离来自这个步骤的有机相(O1)和水相(A1),由有机相(O1)回收丙烯酸－2－乙基己酯。为了抑制所述中和时出现的乳化,选择一种或多种除氢醌外的丙烯酸的稳定剂,否则在中和前和/或在中和期间稳定该过程的水相。 | ||||||
| 102 | 用于抑制烯属不饱和脂族单体的自由基聚合的组合物和方法 | CN99814961.6 | 1999-12-21 | CN1331669A | 2002-01-16 | F·拉缇格-皮罗 |
| 本发明涉及用于防止烯属不饱和脂族单体的自由基聚合的组合物,其特征在于包含至少一种具有通式(Ⅰ)的二苯基胺衍生物。在式(Ⅰ)中:A和B表示形成全部或部分单环或多环芳族碳环体系的残基;R1和R2可以相同或不同,表示氢原子或一个或多个取代基;和n+m大于或等于1∶n和m表示在环上取代基的数目。 | ||||||
| 103 | 用7－芳香基醌甲基化物抑制不饱和单体 | CN96104631.7 | 1996-04-12 | CN1054594C | 2000-07-19 | S·埃万斯; M·E·甘德; P·尼斯瓦德巴; V·H·旺阿恩; R·A·E·温特 |
| 通过加入一定数量的稳定、有效的一种7-芳香基醌甲基化物，可以防止烯属不饱和单体在生产和贮存过程中的早期聚合。 | ||||||
| 104 | 使用氮氧化物的混合物抑制丙烯酸酯的聚合 | CN98805907.X | 1998-06-04 | CN1259114A | 2000-07-05 | M·E·甘德; G·T·昆克勒; L·R·加特蔡尔; S·D·帕斯托尔; R·塞尔茨; R·A·E·温特 |
| 烯化的不饱和羧基单体,例如丙烯酸或甲基丙烯酸或它们的酯,在制备和贮存中,在有水或无水时,通过将有效稳定量的两个或更多的氮氧化物的混合物结合于其中可防止单体的过早聚合。一些这样的混合物提供的协同稳定效果远优于其中单个氮氧化物单独使用所获得的稳定效果。 | ||||||
| 105 | 用7-芳香基醌甲基化物抑制不饱和单体 | CN96104631.7 | 1996-04-12 | CN1139094A | 1997-01-01 | S·埃万斯; M·E·甘德; P·尼斯瓦德巴; V·H·旺阿恩; R·A·E·温特 |
| 通过加入一定数量的稳定、有效的一种7-芳香基醌甲基化物，可以防止烯属不饱和单体在生产和贮存过程中的早期聚合。 | ||||||
| 106 | 抑制乙烯基芳族或乙烯基脂族化合物聚合的方法 | CN95115274.2 | 1995-08-15 | CN1119636A | 1996-04-03 | T·凯尔; M·考夫霍尔德; B·赫尔帕普 |
| 本发明描述了一种在高温和无空气条件下抑制乙烯基芳族和乙烯基脂族化合物聚合的方法。其中，用4-羟基-2，2，6，6-四甲基哌啶-N-氧化物或4-乙酰氨基-2，2，6，6-四甲基哌啶-N-氧化物单独或以与对亚硝基苯酚或2-甲基-4-亚硝基苯酚的混合物作为抑制剂。 | ||||||
| 107 | (甲基)丙烯酸及其酯的阻聚方法 | CN95106624.2 | 1995-06-01 | CN1118778A | 1996-03-20 | 坂元一彦; 武田隆裕; 上冈正敏; 赤泽阳治; 马场将夫 |
| (甲基)丙烯酸及其酯的阻聚方法，是防止在易聚合单体(甲基)丙烯酸单体及(甲基)丙烯酸酯单体的制备、输送、贮存时聚合的方法，其特征在于采用N-氧基化合物与一种以上选自锰盐化合物、铜盐化合物、2，2，6，6-四甲基哌啶化合物以及亚硝基化合物的化合物。N-氧基化合物优选选自2，2，6，6-四甲基哌啶子基氧基、4-羟基-2，2，6，6-四甲基哌啶子基氧基及4，4′，4″-三(2，2，6，6-四甲基哌啶子基氧基)磷化物。本发明的阻聚剂组合方法与单独使用时相比，发挥显著的阻聚效果。 | ||||||
| 108 | MULTI-COMPONENT POLYMERIZATION INHIBITORS FOR ETHYLENICALLY UNSATURATED MONOMERS | PCT/US2012023453 | 2012-02-01 | WO2012106410A2 | 2012-08-09 | TONG DAVID YOUDONG |
| The invention provides a composition and a method of using the composition for inhibiting the unwanted polymerization of ethylenically unsaturated monomers. The composition is prepared by reducing a nitroxide stable free radical to its corresponding hydroxylamine through reaction with a dialkyl/aryl hydroxylamine and subsequent addition of a polymerization prevention component selected from phenolic antioxidants, phenylenediamine and phenylenediamine derivatives, or phenothiazine and phenothiazine derivatives targeted towards ethylenically unsaturated monomers. The conversion of the nitroxide by the dialkyl/aryl hydroxylamine is to prevent it or the polymerization prevention component from being "spent" by reaction with each other, impurities or any other incompatible components. This allows previously incompatible combinations to now work effectively. In fact, the combination is more efficacious as the combination exerts a synergy due to the presence of various polymerization prevention reagents. The composition is a synergistic combination of various polymerization inhibition compounds for the inhibition of the unwanted polymerization of ethylenically unsaturated monomers. | ||||||
| 109 | METHOD OF INHIBITING POLYMERIZATION AND FOULING IN ACRYLIC ACID AND ACRYLATE PROCESSES | PCT/US2008071474 | 2008-07-29 | WO2009032427A3 | 2009-05-14 | FRUCHEY OLAN S; REEVES CHRISTOPHER T; BROOKS WILLIAM C; YANG EDMUND J; ROUNDY ROGER L |
| The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized sail, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an N-oxyl compound, e.g., 4-hydroxy-TEMPO, and (ii) a manganese ion, the N-oxyl compound and manganese ion present in a N-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1 based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt, | ||||||
| 110 | METHOD FOR STABILIZING CHEMICAL COMPOUNDS CONTAINING AT LEAST ONE ETHYLENICALLY UNSATURATED BOND IN ORDER TO PREVENT UNDESIRABLE RADICAL POLYMERIZATION | PCT/EP9909543 | 1999-12-07 | WO0034220A2 | 2000-06-15 | SUTORIS HEINZ FRIEDRICH; WAGENBLAST GERHARD; SCHLIEPHAKE VOLKER; SCHROEDER JUERGEN; MUELLER-ENGEL KLAUS JOACHIM; KELLER HARALD; JAWOREK THOMAS |
| A method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization, whereby a nitroxyl radical and a chemical compound containing chemically bonded phosphorus are added to an unsaturated compound existing in the form of a pure substance or constituent in a mixture. | ||||||
| 111 | METHOD FOR STABILISING POLYMERISABLE COMPOUNDS | PCT/EP2013075875 | 2013-12-09 | WO2014095437A3 | 2014-10-09 | KORN TOBIAS JOHANNES; ZUROWSKI PETER; FRIESE THORSTEN; HAREMZA SYLKE; JÄGER ULRICH; RISSEL STEFFEN; SCHLIEPHAKE VOLKER |
| The invention relates to a method for stabilising acrylic compounds, wherein a liquid phase, which contains at least one acrylic compound from the group acrylic acid, methacrylic acid and their respective esters, is mixed with at least one metal from the group copper, manganese and cerium and at least one ligand from the group consisting of a) quinoline compounds of formula (I), wherein the symbols have the following meanings: X is OH, NH2, O-C1-C4-alkyl, preferably OCH3, O-C(O)-C1-C4-alkyl, preferably O-C(O)-CH3, O-C(O)-C2H5 or O-C(O)-phenyl; R1 is H, or (C1-C4)-alkyl, preferably methyl; R2 is H, C1-C4-alkyl, preferably methyl, Cl, Br or SO3H and R3 is H, Cl or Br; and N-oxides of compounds of formula (I), b) 2,2'-bis(2,3-dihydro-3-oxoindolylides) and c) aliphatic y-dentate ligands where y = 2-6, containing at least two nitrogen atoms and y-2 further coordinating aliphatic or aromatic C1-C4 carbon bridges containing nitrogen atoms or heteroatoms. | ||||||
| 112 | FORMULATIONS AND METHODS FOR RAISING THE FLASH POINTS OF VOLATILE ORGANIC SOLVENTS | PCT/US2010060017 | 2010-12-13 | WO2011081865A3 | 2011-10-13 | HOWARD HARRY W |
| A premix formulation raises the flash point of a volatile organic solvent to a level that results in a solvent mixture that is less volatile. The premix formulation includes a blend of two or more terpenoids and acetone. The blended terpenoids are preferably present in the premix formulation in an amount of about 2% to about 40%, by weight, based on the total weight of the premix formulation. The premix formulation preferably includes about 60% to about 98% acetone, by weight, based on the total weight of the premix formulation. | ||||||
| 113 | STABILIZATION OF THE COMPOSITION OF A MIXTURE | PCT/EP2009003666 | 2009-05-23 | WO2009152917A2 | 2009-12-23 | TOFF STEPHAN; PARLAR HARUN |
| Described is a method for slowing the speed of the isomerisation of petasin and neopetasin to isopetasin, and the isomerisation of S-petasin and neo-S-petasin to iso-S-petasin, especially in extracts from plants of the genus Petasites, preferably Petasites hybridus, by the addition of at least one suitable stabilizer and/or the removal of at least one destabilizing substance, e.g. a fatty acid. | ||||||
| 114 | METHOD FOR PRODUCING (METH) ACRYLIC ACID ESTERS OF POLYHYDRIC ALCOHOLS | PCT/EP0212491 | 2002-11-08 | WO03042151A8 | 2004-06-24 | WARTINI ALEXANDER; DERNBACH MATTHIAS; SCHROEDER JUERGEN; MARTIN FRIEDRICH-GEORG; SIRCH TILMAN |
| The invention relates to a method for producing (meth) acrylic acid esters of polyhydric alcohols by reacting (meth) acrylic acid and the corresponding polyhydric alcohols in the presence of at least one acid catalyst and, optionally, of at least one polymerization inhibitor and, optionally, in the presence of a solvent, whereby the polyhydric alcohol that is used has a content of bound formaldehyde of less than 500 ppm. | ||||||
| 115 | Derivatives of 1-oxyl-4-hydroxy-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers | US95617 | 1998-06-10 | US5932735A | 1999-08-03 | Glen T. Cunkle; Matthew E. Gande; Raymond Seltzer; Thomas F. Thompson |
| Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxypiperidine are surprisingly effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water. Some of these derivatives are new compounds. | ||||||
| 116 | Stabilized lactic acid menthyl ester | US799856 | 1997-02-13 | US5783725A | 1998-07-21 | Walter Kuhn; Alfred Korber; Roland Langner; Detlef Hagena |
| Lactic acid menthyl ester can be stabilized by addition of alkali metal carbonate and/or bicarbonate and/or alkaline earth metal carbonate and/or bicarbonate. | ||||||
| 117 | Liquid antioxidants as stabilizers | US462254 | 1995-06-02 | US5739341A | 1998-04-14 | Paul Dubs; Roger Martin; Samuel Evans |
| Products are described which can be obtained by reacting components a), b) and c), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II and component c) is a compound of the formula III or a mixture of compounds of the formula III, ##STR1## in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate. The abovementioned products can be used as liquid antioxidants in polymers and lubricants. | ||||||
| 118 | Inhibition of unsaturated monomers with 7-aryl quinone methides | US422284 | 1995-04-14 | US5616774A | 1997-04-01 | Samuel Evans; Matthew E. Gande; Peter Nesvadba; Volker H. von Ahn; Roland A. E. Winter |
| Ethylenically unsaturated monomers are protected from premature polymerization during manufacture and storage by the incorporation therein of an effective stabilizing amount of a 7-aryl quinone methide compound. | ||||||
| 119 | Process for producing esterified alkoxylated polyols with improved stability | US182267 | 1994-01-14 | US5571935A | 1996-11-05 | Bernard C. Sekula; Thaddeus R. Ziegert; Michael R. Ferenz |
| Esterified alkoxylated polyols, particularly a fatty acid-esterified propoxylated glycerol, which exhibit improved flavor and oxidative stability by the addition of antioxidants to the alkoxylated polyols, either prior to or subsequent to steam stripping, fatty acids or combinations thereof prior to fatty acid esterification, and the products thereof. | ||||||
| 120 | Method for inhibiting polymerization of (meth) acrylic acid and esters thereof | US444869 | 1995-05-19 | US5504243A | 1996-04-02 | Kazuhiko Sakamoto; Takahiro Takeda; Masatoshi Ueoka; Yoji Akazawa; Masao Baba |
| Disclosed herein is a method for inhibiting polymerizable (meth)acrylic acid and esters thereof from polymerizing during their production, transportation and storage by using as the inhibitor N-oxyl compound and more than one compound selected from the group consisting of manganese salt compound, copper salt compound, 2,2,6,6,-tetramethylpiperidine compound and nitroso compound. The N-oxyl compound is one or more kinds selected from 2,2,6,6,-tetramethylpiperidinooxyl, 4-hydroxy-2,2,6,6,-tetramethylpiperidinooxyl and 4,4',4"-tris-(2,2,6,6,-tetramethylpiperidinooxyl)phosphite. The combined use of the inhibitors provides superior inhibiting effect to use alone. | ||||||
QQ群二维码
意见反馈
意见反馈