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1. 发明授权

US5371280A Polymerization inhibitor and inhibiting method for vinyl compound 失效
标题翻译：聚合抑制剂和乙烯基化合物的抑制方法
公开(公告)号：US5371280A
公开(公告)日：1994-12-06
申请号：US788326
申请日：1991-11-05
申请人： Hidefumi Haramaki , Kazuhiko Sakamoto , Masatoshi Ueoka , Yohji Akazawa , Masao Baba
发明人： Hidefumi Haramaki , Kazuhiko Sakamoto , Masatoshi Ueoka , Yohji Akazawa , Masao Baba
IPC分类号： C07C7/20 , C07C51/50 , C07C57/075 , C07C67/62 , C07C57/04 , B01D3/34
CPC分类号： C07C7/20 , C07C51/50 , C07C67/62
摘要： This invention is directed to a polymerization inhibitor and a polymerization inhibiting method which enables the continuous operation of a device for producing vinyl compounds over a long period of time and virtually eliminates corrosion. Further, the polymerization inhibitors according to the present invention are superior in polymerization inhibition when transferring and storing the vinyl compound products and in other cases. The polymerization inhibitor according to the present invention contains manganese dithiocarbamate or a thiuram compound as an effective component. The polymerization inhibiting method of this invention comprises individual or joint use of said inhibitors, or joint use of a copper salt, another manganese salt, or quinones in addition to said inhibitors. Further, the method may comprise jointly using copper dithiocarbamates in a manganese salt as polymerization inhibitors, or jointly using quinones in addition to the salts.
摘要翻译：本发明涉及聚合抑制剂和聚合抑制方法，其能够长时间地连续操作用于生产乙烯基化合物的装置，并且实际上消除了腐蚀。此外，根据本发明的聚合抑制剂在转移和储存乙烯基化合物产品时的聚合抑制性优异，在其它情况下也是优异的。本发明的阻聚剂含有二硫代氨基甲酸锰或秋兰姆化合物作为有效成分。除了所述抑制剂之外，本发明的聚合抑制方法包括单独或联合使用所述抑制剂，或联合使用铜盐，另一种锰盐或醌。此外，该方法可以包括在锰盐中联合使用二硫代氨基甲酸铜作为聚合抑制剂，或者除了盐之外共同使用醌。

2. 发明授权

US5072066A Inhibiting popcorn polymer formation with esters of inorganic acids 失效
标题翻译：用无机酸的酯抑制爆米花聚合物的形成
公开(公告)号：US5072066A
公开(公告)日：1991-12-10
申请号：US647359
申请日：1991-01-29
申请人： Hsiang-ning Sun
发明人： Hsiang-ning Sun
IPC分类号： C07C69/54 , C07B63/04 , C07C7/20 , C07C11/12 , C07C11/20 , C07C17/42 , C07C21/20 , C07C45/86 , C07C57/075 , C07C253/32 , C07C255/08 , C08F2/00 , C08F2/38 , C09K15/04
CPC分类号： C07C7/20 , C07B63/04 , Y10S585/95
摘要： Inhibition of popcorn polymer growth by treatment with an inorganic acid ester. This compound can be admixed with organic material from which popcorn polymer is formed, or added to a system for the recovery, use or storage of such organic material.
摘要翻译：用无机酸酯处理爆米花聚合物生长抑制。该化合物可以与形成爆米花聚合物的有机材料混合，或加入到用于回收，使用或储存这种有机材料的系统中。

3. 发明授权

US4435598A Process for the catalytic oxidation of propylene to acrylic acid 失效
标题翻译：将丙烯催化氧化成丙烯酸的方法
公开(公告)号：US4435598A
公开(公告)日：1984-03-06
申请号：US846470
申请日：1977-10-28
申请人： James A. Hinnenkamp
发明人： James A. Hinnenkamp
IPC分类号： C07C51/25 , C07C57/075 , C07C51/50 , C07C57/045
CPC分类号： C07C51/252
摘要： An improved process for the catalytic oxidation of propylene to acrylic acid the improvement comprising conducting the process in the presence of an effective amount of hydroquinone. The improved process is particularly applicable to the aqueous liquid phase reaction of propylene with molecular oxygen using a supported palladium catalyst.
摘要翻译：丙烯到丙烯酸催化氧化的改进方法包括在有效量的对苯二酚的存在下进行该方法。改进的方法特别适用于使用负载的钯催化剂的丙烯与分子氧的水性液相反应。

4. 发明授权

US4210493A C-Nitroso compounds as anaerobic polymerization inhibitors for acrylic acid or methacrylic acid 失效
标题翻译： C亚硝基化合物作为丙烯酸或甲基丙烯酸的厌氧聚合抑制剂
公开(公告)号：US4210493A
公开(公告)日：1980-07-01
申请号：US671801
申请日：1976-03-30
申请人： Thomas Stewart , Richard F. Merritt
发明人： Thomas Stewart , Richard F. Merritt
IPC分类号： C07C51/50 , C07C57/075 , B01D3/34 , C07C57/04
CPC分类号： C07C51/50 , C08F2/40 , Y10S203/22
摘要： A method is disclosed for inhibiting the polymerization of acrylic and methacrylic acids at ambient or above ambient temperature, such as during preparation, purification or storage of the acids under substantially anaerobic conditions, by adding thereto a polymerization inhibiting amount of a compound having the formula:R--NOwhere R is alkyl or aryl, and if R is aryl, a hydroxyl group para to the NO group enhances inhibition.
摘要翻译：公开了一种抑制丙烯酸和甲基丙烯酸在环境温度或高于环境温度下聚合的方法，例如在基本上无氧条件下在酸的制备，纯化或储存期间，通过加入聚合抑制量的具有下式的化合物： R-NO，其中R是烷基或芳基，并且如果R是芳基，则NO基团对羟基增强抑制。

5. 发明授权

US3954854A Recovery of monomeric acrylic acid from residues originating from processed crude acrylic acid 失效
标题翻译：从加工粗丙烯酸的残留物中回收单体丙烯酸
公开(公告)号：US3954854A
公开(公告)日：1976-05-04
申请号：US549176
申请日：1975-02-12
申请人： Klaus Gehrmann , Heinz Erpenbach , Georg Kohl , Hans Klaus Kuebbeler
发明人： Klaus Gehrmann , Heinz Erpenbach , Georg Kohl , Hans Klaus Kuebbeler
IPC分类号： B01J23/00 , B01J27/00 , B01J31/00 , C07B61/00 , C07C51/00 , C07C51/487 , C07C57/065 , C07C57/07 , C07C57/075 , C07C67/00
CPC分类号： C07C51/487
摘要： Monomeric acrylic acid is recovered from residues originating from processed crude acrylic acid and containing .beta.-acryloyloxypropionic acid, .beta.-acetoxypropionic acid, hydracrylic acid, dihydracrylic acid and polymeric hydracrylic acid. To this end, the residues are heated to temperatures within the range 130.degree. and 250.degree.C under pressures within the range 0.01 and 1 atmosphere absolute in contact with catalysts selected from alkali metal or alkaline earth metal carboxylates, phosphates or borates, or from alkali metal or alkaline earth metal compounds producing carboxylates together with the carboxylic acids being contained in the residues.
摘要翻译：来自加工粗丙烯酸和含有β-丙烯酰氧基丙酸，β-乙酰氧基丙酸，氢丙烯酸，二丙烯酸和聚合丙烯酸的残余物中回收单体丙烯酸。为此，将残余物加热到130℃和250℃范围内的温度，在0.01和1个绝对大气压范围内的压力下，与选自碱金属或碱土金属羧酸盐，磷酸盐或硼酸盐或碱的催化剂接触与残留物中含有的羧酸一起产生羧酸盐的金属或碱土金属化合物。

6. 发明申请

US20050013865A1 Super-absorbing polymers containing tocopherol 审中-公开
标题翻译：含有生育酚的超吸收聚合物
公开(公告)号：US20050013865A1
公开(公告)日：2005-01-20
申请号：US10496775
申请日：2002-12-18
申请人： Gerhard Nestler , Jurgen Schroder , Stefan Wickel
发明人： Gerhard Nestler , Jurgen Schroder , Stefan Wickel
IPC分类号： C07C57/075 , A61L15/60 , C07C69/54 , C08F2/44 , C08F20/06 , C08L33/02 , A61K31/355 , A61K9/14
CPC分类号： A61L15/60 , C08L33/04
摘要： The present invention relates to novel tocopherol-containing superabsorbents, to a process for preparing them using tocopherol-containing acid-functional monomers, especially acrylic acid, and to their use for absorbing aqueous fluids.
摘要翻译：本发明涉及新颖的含有生育酚的超吸收剂，涉及使用含有生育酚的酸官能单体，特别是丙烯酸制备它们的方法及其用于吸收含水流体的用途。

7. 发明授权

US6051735A Process for preventing polymerization of vinyl compound 有权
标题翻译：防止乙烯基化合物聚合的方法
公开(公告)号：US6051735A
公开(公告)日：2000-04-18
申请号：US210885
申请日：1998-12-15
申请人： Kenji Okamoto , Takashi Nakagawa , Hideaki Mimaki , Kouji Tomita
发明人： Kenji Okamoto , Takashi Nakagawa , Hideaki Mimaki , Kouji Tomita
IPC分类号： C07B63/04 , C07C51/50 , C07C57/075 , C07C57/04
CPC分类号： C07C51/50 , C07B63/04
摘要： There is disclosed a process for prevention the polymerization of a vinyl compound selected from acrylic acid and methacrylic acid which comprises allowing at least one corrosion inhibitive substance selected from an alcohol and inorganic acid or salt thereof, an aromatic carboxylic acid or salt thereof and a zinc-containing salt to coexist with a metallic salt of dithiocarbamic acid, in prevention the polymerization of the vinyl compound with the metallic salt of dithiocarbamic acid.
摘要翻译：公开了一种防止选自丙烯酸和甲基丙烯酸的乙烯基化合物的聚合的方法，其包括使至少一种选自醇和无机酸或其盐的腐蚀抑制物质，芳族羧酸或其盐和锌的含盐与二硫代氨基甲酸的金属盐共存，以防止乙烯基化合物与二硫代氨基甲酸的金属盐的聚合。

8. 发明授权

US5886220A Process for preventing polymerization of vinyl compound 失效
标题翻译：防止乙烯基化合物聚合的方法
公开(公告)号：US5886220A
公开(公告)日：1999-03-23
申请号：US793600
申请日：1997-03-05
申请人： Kenji Okamoto , Takashi Nakagawa , Hideaki Mimaki , Kouji Tomita
发明人： Kenji Okamoto , Takashi Nakagawa , Hideaki Mimaki , Kouji Tomita
IPC分类号： C07B63/04 , C07C51/50 , C07C57/075 , C07C57/04 , C07C57/02
CPC分类号： C07C51/50 , C07B63/04
摘要： There is disclosed a process for preventing the polymerization of a vinyl compound which comprises allowing water in an amount of 0.05 to 5% by weight based on the vinyl compound or a corrosion inhibitive substance selected from an alcohol, an inorganic acid or its salt, an aromatic carboxylic acid or its salt and a zinc-containing salt in an amount of preferably 0.01 to 5% by weight based on the same, to coexist with a metallic salt of dithiocarbamic acid, in preventing the polymerization of the vinyl compound with the metallic salt of dithiocarbamic acid. The above process makes it possible to effectively inhibit the polymerization of acrylic acid, methacrylic acid, etc. in the distillation system, etc. of the production process for the above acids as well as the corrosion of the equipment and machinery to be used therein and also to assure long-term stable continuous operation of the equipment and machinery.
摘要翻译： PCT No.PCT / JP95 / 01705 Sec。 371日期1997年3月5日 102（e）1997年3月5日PCT PCT 1995年8月29日PCT公布。出版物WO96 / 07631 日期：1996年3月14日公开了一种防止乙烯基化合物聚合的方法，该方法包括使乙烯基化合物或选自醇，无机酸的腐蚀抑制物质为0.05〜5重量％或其盐，芳族羧酸或其盐和含锌盐的含量相对于二硫代氨基甲酸的金属盐优选为0.01-5重量％，以防止乙烯基聚合反应与二硫代氨基甲酸的金属盐化合物。上述方法使得有可能有效地抑制上述酸的制备方法的蒸馏系统中的丙烯酸，甲基丙烯酸等的聚合以及其中使用的设备和机器的腐蚀，也保证设备和机械的长期稳定连续运行。

9. 发明授权

US5759358A Process for pure grade acrylic acid 失效
标题翻译：纯级丙烯酸工艺
公开(公告)号：US5759358A
公开(公告)日：1998-06-02
申请号：US537368
申请日：1995-10-27
申请人： William Bauer, Jr. , Timothy Allen Hale , Robert Michael Mason , Rita Karina Upmacis , Lori Marie Petrovich
发明人： William Bauer, Jr. , Timothy Allen Hale , Robert Michael Mason , Rita Karina Upmacis , Lori Marie Petrovich
IPC分类号： C07C57/04 , C07C51/44 , C07C51/487 , C07C51/50 , C07C57/07 , C07C57/075 , B01D3/34 , C07C51/42
CPC分类号： C07C51/44 , C07C51/487 , C07C51/50 , Y10S203/09 , Y10S203/22
摘要： Processes are provided for producing a pure grade of acrylic acid having residual aldehyde levels under 10 parts per million. The processes apply selected groups of amines sequentially and, preferably, continuously in selectively reducing, for example, acrolein and furfural, and may be advantageously conducted in the presence of maleic acid and maleic anhydride impurities.
摘要翻译：提供了生产具有10ppm以下残留醛水平的纯级丙烯酸的方法。该方法顺序地，优选连续选择性地还原例如丙烯醛和糠醛，并且可以有利地在马来酸和马来酸酐杂质的存在下进行。

10. 发明授权

US4780568A Purification of methacrylic acid from an oxydehydrogenation by crystallization 失效
标题翻译：通过结晶从氧化脱氢中纯化甲基丙烯酸
公开(公告)号：US4780568A
公开(公告)日：1988-10-25
申请号：US113586
申请日：1987-10-19
申请人： Ralph F. Pascoe
发明人： Ralph F. Pascoe
IPC分类号： C07C51/43 , C07C57/07 , C07C405/00 , C07C51/377 , C07C51/47 , C07C51/50 , C07C57/075
CPC分类号： C07C405/0016 , C07C51/43
摘要： A process for separation of methacrylic acid from methacrylic acid-isobutyric acid mixtures involving the selective crystallization and removal of the methacrylic acid from said mixtures is decribed.
摘要翻译：描述了甲基丙烯酸与甲基丙烯酸 - 异丁酸混合物分离的方法，涉及从所述混合物中选择性结晶和除去甲基丙烯酸。

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