Photoreactive monomers
    2.
    发明授权
    Photoreactive monomers 有权
    光反应性单体

    公开(公告)号:US09315445B2

    公开(公告)日:2016-04-19

    申请号:US14021040

    申请日:2013-09-09

    申请人: BASF SE

    摘要: Photoreactive monomer which has (i) at least one free-radically polymerizable C—C double bond, (ii) at least one hydrophilic group selected from an ethylene glycol group and a polyethylene glycol group having at least 2 ethylene glycol units and (iii) at least one photoreactive group, the photoreactive group being a photoenolizable carbonyl group, and also a method for preparing the photoreactive monomers.

    摘要翻译: 具有(i)至少一种可自由基聚合的C-C双键的光反应性单体,(ii)至少一种选自乙二醇基团和具有至少2个乙二醇单元的聚乙二醇基团的亲水基团,和(iii) 至少一个光反应性基团,光反应性基团是可光嫩化的羰基,以及制备光反应性单体的方法。

    Process for the production of di-trimethylolpropane
    8.
    发明授权
    Process for the production of di-trimethylolpropane 失效
    二羟甲基丙烷生产工艺

    公开(公告)号:US5324863A

    公开(公告)日:1994-06-28

    申请号:US30020

    申请日:1993-03-24

    CPC分类号: C07C41/09 C07C67/08 C07C67/28

    摘要: Process for the production of di-trimethylolpropane (di-TMP), which comprises subjecting a solution containing less than 3 per cent by weight, preferably less than 1 per cent by weight of water, free trimethylolpropane (TMP) and/or partial ester between TMP and a monocarboxylic acid or its anhydride having 1-4 carbon atoms in the chain, which partial ester on average contains 1.0-2.5, preferably 1.0-2.0 ester groups per molecule to an etherification reaction by heating to 50.degree.-200.degree. C., preferably 70.degree.-190.degree. C. in the presence of an acid catalyst in solid state or in dissolved state until at most 30%, preferably at most 15% of the total content of free TMP and partial ester of TMP in the solution has been etherified to free di-TMP and partial ester of di-TMP respectively, at the same time continuously removing etherification water formed at the etherification reaction under vacuum at a pressure of 0.1-200 mm Hg, preferably 0.1-50 mm Hg or by an azeotropic distillation by means of a compound such as hexane, toluene, xylene or the like forming an azeotropic mixture, and recovering free di-TMP and di-TMP bonded as a partial ester respectively from the reaction mixture in a suitable way.

    摘要翻译: PCT No.PCT / SE91 / 00589。 371日期1993年3月24日 102(e)1993年3月24日PCT 1991年9月9日PCT公布。 公开号WO91 / 10633 日期:1991年7月25日。用于生产二 - 三羟甲基丙烷(二-TMP)的方法,其包括使含有少于3重量%,优选小于1重量%水的溶液,游离的三羟甲基丙烷(TMP )和/或TMP与单羧酸或其酸酐在链中具有1-4个碳原子的部分酯,该偏酯平均每分子含有1.0-2.5,优选1.0-2.0个酯基,通过加热至 50℃-200℃,优选70℃-190℃,在酸性催化剂存在下,以固态或溶解状态,直至游离TMP和部分的总含量的至多30%,优选至多15% 已经将溶液中的TMP酯醚化以分别释放di-TMP和di-TMP的部分酯,同时在0.1-200mm Hg,优选0.1的压力下,在真空下连续除去醚化反应生成的醚化水 -50 mm Hg或共沸d 通过形成共沸混合物的己烷,甲苯,二甲苯等化合物进行蒸馏,分别以合适的方式从反应混合物中回收作为偏酯结合的游离二-TMP和二-TMP。

    Diacyloxybutene isomerization with selenium dioxide
    9.
    发明授权
    Diacyloxybutene isomerization with selenium dioxide 失效
    二氧化丙烯异构化与二氧化硒

    公开(公告)号:US4182901A

    公开(公告)日:1980-01-08

    申请号:US841780

    申请日:1977-10-13

    IPC分类号: C07C67/28

    CPC分类号: C07C67/28 C07C67/293

    摘要: Diacyloxyolefins are isomerized by contacting one or more diacyloxyolefins with a catalyst system comprising selenium dioxide and a suitable carboxylic acid. There can be additionally present in the catalyst system at least one compound selected from the group consisting of a carboxylic acid anhydride, a polar compound, and an ionic reagent.

    摘要翻译: 二酰氧基烯烃通过使一种或多种二酰氧基烯烃与包含二氧化硒和合适的羧酸的催化剂体系接触来异构化。 在催化剂体系中还可以存在至少一种选自羧酸酐,极性化合物和离子试剂的化合物。

    1,4-Butanediol from hydrogenated hydroformylated allyl acetate
    10.
    发明授权
    1,4-Butanediol from hydrogenated hydroformylated allyl acetate 失效
    氢化甲酰化烯丙基乙酸酯的1,4-丁二醇

    公开(公告)号:US3941851A

    公开(公告)日:1976-03-02

    申请号:US548216

    申请日:1975-02-10

    申请人: William E. Smith

    发明人: William E. Smith

    摘要: Dehydroformylation of isomeric acetoxybutyraldehydes, with minimal dehydroacetoxylation, can be accomplished at a temperature in the range of 120.degree.-250.degree. C. in a nonoxidizing atmosphere in the presence of an essentially neutral noble metal catalyst to produce allyl acetate, 1-propenyl acetate or mixtures thereof. This reaction permits recycle of the undesired isomeric acetoxybutyraldehyde products of the hydroformylation of allyl acetate of 1-propenyl acetate to the desired 4-acetoxybutyraldehyde which is an intermediate in the production of 1,4-butanediol useful in making polyesters.

    摘要翻译: 在非氧化气氛中,在基本上为中性的贵金属催化剂的存在下,可以在120〜250℃范围内的温度下完成异构乙酰氧基丁醛的脱氢甲酰化,从而产生乙酸烯丙酯,乙酸1-丙烯酯或 其混合物。 该反应允许乙酸1-丙烯酯的乙酸烯丙酯的加氢甲酰化反应所需的异构乙酰氧基丁醛产物再循环到所需的4-乙酰氧基丁醛中,该4-乙酰氧基丁醛是制备聚酯制备1,4-丁二醇的中间体。