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188 条记录 (耗时 0.019 秒)

    Preparation of unsaturated polyester resins
    12.
    发明授权
    Preparation of unsaturated polyester resins 失效
    不饱和聚酯树脂的制备

    公开(公告)号：US5763531A

    公开(公告)日：1998-06-09

    申请号：US840583

    申请日：1997-04-22

    申请人： Robert H. Boutier

    发明人： Robert H. Boutier

    IPC分类号： C08G63/52 ,  C08L9/00 ,  C08L67/06

    CPC分类号： C08G63/52

    摘要： Preparation of storage stable, polybutadiene containing, unsaturated polyester resins by heating a mixture containing an unsaturated hydroxyl terminated polybutadiene resin, a saturated anhydride or dibasic acid, an unsaturated anhydride or dibasic acid, a polymerization inhibitor and, optionally, a saturated glycol, while removing water as it is formed, the molar ratio of the saturated anhydride or acid to the unsaturated anhydride or acid being at least equal to 2.

    摘要翻译： 通过加热含有不饱和羟基封端的聚丁二烯树脂，饱和酸酐或二元酸，不饱和酸酐或二元酸，阻聚剂和任选的饱和二醇的混合物，制备含有不饱和聚酯树脂的储存稳定的聚丁二烯，同时除去 水形成时，饱和酸酐或酸与不饱和酸酐或酸的摩尔比至少等于2。

    Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper
    13.
    发明授权
    Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper 失效

    公开(公告)号：US5744438A

    公开(公告)日：1998-04-28

    申请号：US686787

    申请日：1996-07-26

    申请人： John Distaso

    发明人： John Distaso

    IPC分类号： C09D9/00 ,  C11D7/50

    CPC分类号： C09D9/00

    摘要： Stripping action of an alkaline paint stripper is improved when ammonia is partially or completely replaced with ammonium bicarbonate or chemical equivalent thereof which decomposes into ammonia and carbon dioxide. A benzyl alcohol solvent system containing at least ammonium bicarbonate is preferably a water-in-oil emulsion emulsified with oleic hydroxyethyl imidazoline and thickened with hydroxypropyl cellulose or hydroxypropyl methylcellulose. A mixture of ammonium carbamate and ammonium bicarbonate identified as ammonium carbonate is the preferred activator for this alkaline paint stripper. Improved stripping can also be provided by reacting ammonium bicarbonate and ammonia in situ within the water-in-oil emulsion.

    F141b crude stabilization
    16.
    发明授权
    F141b crude stabilization 失效
    F141b粗稳定

    公开(公告)号：US5683554A

    公开(公告)日：1997-11-04

    申请号：US509840

    申请日：1995-08-01

    申请人： Wayne E. Brooks ,  Craig Jolley

    发明人： Wayne E. Brooks ,  Craig Jolley

    IPC分类号： C07C17/383 ,  C07C17/386 ,  C07C17/42 ,  C07C19/12 ,  B01D3/34 ,  C07C17/38

    CPC分类号： C07C17/386 ,  C07C17/383 ,  C07C17/42 ,  Y10S203/11 ,  Y10S203/20

    摘要： Separation of 1,1-dichloro-1-fluoroethane (141b) from lower boiling components contained in a crude 141b feed stream mixture by adding the feed stream mixture, and, based upon the weight of 141b in the feed stream mixture, between 100 and 300 ppm of a component that will inhibit formation of 1,1-difluoro-1-chloroethane into a feed line of a distillation column operated at between 3 and 165 psig pressure with a temperature between 100.degree. F. and 250.degree. F. in the bottom reboiler section of the column.

    摘要翻译： 通过加入进料流混合物，将1,1-二氯-1-氟乙烷（141b）与粗制141b进料流混合物中所含的低沸点组分分离，并且基于进料流混合物中141b的重量在100和 300ppm的将抑制1,1-二氟-1-氯乙烷形成到蒸馏塔的进料管线中的组分，其操作温度为3至165psig压力，温度为100°F至250°F。 塔的底部再沸器部分。

    Process for continuous liquid phase reaction of hydrogen fluoride and 1,1,1-trichloroethane to provide 1,1-dichloro-1-fluoroethane and 1-chloro-1, 1-difluoroethane mixtures
    19.
    发明授权
    Process for continuous liquid phase reaction of hydrogen fluoride and 1,1,1-trichloroethane to provide 1,1-dichloro-1-fluoroethane and 1-chloro-1, 1-difluoroethane mixtures 失效
    用于氟化氢和1,1,1-三氯乙烷的连续液相反应以提供1,1-二氯-1-氟乙烷和1-氯-1,1-二氟乙烷混合物的方法

    公开(公告)号：US5608124A

    公开(公告)日：1997-03-04

    申请号：US879068

    申请日：1992-05-01

    申请人： John A. Wismer

    发明人： John A. Wismer

    IPC分类号： C07C17/10 ,  C07C17/20 ,  C07C19/08 ,  C07C19/12

    CPC分类号： C07C17/206

    摘要： A continuous non-catalytic process for the manufacture of 1,1-dichloro-1-fluoroethane/1-chloro-1,1-difluoroethane mixtures from 1,1-dichloro-1-fluoroethane is provided. Hydrogen fluoride and 1,1,1-trichloroethane are continuously feed a molar ratio of from about 3.0 to about 5.2 to form a liquid phase hydrofluorination reaction mixture. Vapor phase reaction product is continuously withdrawn from the reaction zone, and hydrogen fluoride is continuously selectively refluxed back to the reaction mixture. 1,1,1-Trichloroethane utilization approaches 100% , with selectivity for 1,1-dichloro-1-fluoroethane between 15% and 85%, based upon the amount of 1,1-dichloro-1-fluoroethane and 1-chloro-1,1-difluoroethane contained in the gaseous reaction product.

    摘要翻译： 提供了用于从1,1-二氯-1-氟乙烷制备1,1-二氯-1-氟乙烷/ 1-氯-1,1-二氟乙烷混合物的连续非催化方法。 氟化氢和1,1,1-三氯乙烷连续进料，摩尔比为约3.0至约5.2，形成液相氢氟化反应混合物。 气相反应产物从反应区连续排出，氟化氢连续选择性回流回反应混合物。 1,1,1-三氯乙烷利用率接近100％，1,1-二氯-1-氟乙烷的选择性为15％至85％，基于1,1-二氯-1-氟乙烷和1-氯 - 包含在气态反应产物中的1,1-二氟乙烷。

    Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper
    20.
    发明授权
    Ammonium bicarbonate/ammonium carbamate activated benzyl alcohol paint stripper 失效
    碳酸氢铵/氨基甲酸铵活化的苄醇油漆脱漆剂

    公开(公告)号：US5569410A

    公开(公告)日：1996-10-29

    申请号：US340919

    申请日：1994-11-17

    申请人： John Distaso

    发明人： John Distaso

    IPC分类号： C09D9/00 ,  C09D9/04 ,  C11D7/50

    CPC分类号： C09D9/00

    摘要： Stripping action of an alkaline paint stripper is improved when ammonia is partially or completely replaced with ammonium bicarbonate or chemical equivalent thereof which decomposes into ammonia and carbon dioxide. A benzyl alcohol solvent system containing at least ammonium bicarbonate is preferably a water-in-oil emulsion emulsified with oleic hydroxyethyl imidazoline and thickened with hydroxypropyl cellulose or hydroxypropyl methylcellulose. A mixture of ammonium carbamate and ammonium bicarbonate identified as ammonium carbonate is the preferred activator for this alkaline paint stripper. Improved stripping can also be provided by reacting ammonium bicarbonate and ammonia in situ within the water-in-oil emulsion.

    摘要翻译： 当氨被部分或完全替换为分解成氨和二氧化碳的碳酸氢铵或其化学当量时，碱性涂料汽提器的剥离作用得到改善。 至少含有碳酸氢铵的苄醇溶剂体系优选是用油酸羟乙基咪唑啉乳化的油包水乳液，并用羟丙基纤维素或羟丙基甲基纤维素增稠。 确定为碳酸铵的氨基甲酸铵和碳酸氢铵的混合物是该碱性涂料剥离剂的优选活化剂。 还可以通过在油包水乳液中原位使碳酸氢铵和氨反应来提供改进的汽提。