Process for lightening the color of polyol esters
    13.
    发明申请
    Process for lightening the color of polyol esters 有权
    减轻多元醇酯颜色的方法

    公开(公告)号:US20110087046A1

    公开(公告)日:2011-04-14

    申请号:US12924830

    申请日:2010-10-06

    IPC分类号: C07C69/732

    CPC分类号: C07C67/08 C07C67/60 C07C69/28

    摘要: The present invention relates to a process for lightening the color of polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, wherein the reaction product is worked up without using adsorbents and comprises a treatment with ozone or ozone-containing gases and an immediately subsequent steam treatment with subsequent drying.

    摘要翻译: 本发明涉及通过使多元醇与碳原子数为3〜20的直链或支链脂族一元羧酸反应来减轻多元醇酯的颜色的方法,其中反应产物在不使用吸附剂的情况下进行处理,并且包括用臭氧或臭氧 - 随后进行干燥处理。

    Process for lightening the color of polyol esters
    14.
    发明授权
    Process for lightening the color of polyol esters 有权
    减轻多元醇酯颜色的方法

    公开(公告)号:US08524938B2

    公开(公告)日:2013-09-03

    申请号:US12924830

    申请日:2010-10-06

    IPC分类号: C07C69/003

    CPC分类号: C07C67/08 C07C67/60 C07C69/28

    摘要: The present invention relates to a process for lightening the color of polyol esters by reacting polyols with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms, wherein the reaction product is worked up without using adsorbents and comprises a treatment with ozone or ozone-containing gases and an immediately subsequent steam treatment with subsequent drying.

    摘要翻译: 本发明涉及通过使多元醇与碳原子数为3〜20的直链或支链脂族一元羧酸反应来减轻多元醇酯的颜色的方法,其中反应产物在不使用吸附剂的情况下进行处理,并且包括用臭氧或臭氧 - 随后进行干燥处理。

    Process for Aftertreating Polyolesters
    15.
    发明申请
    Process for Aftertreating Polyolesters 有权
    后置聚酯的工艺

    公开(公告)号:US20130116467A1

    公开(公告)日:2013-05-09

    申请号:US13805693

    申请日:2011-06-29

    IPC分类号: C07C67/48

    CPC分类号: C07C67/60 C07C69/28

    摘要: A process for aftertreatment of polyol esters prepared by reacting polyols of the general formula H—(—O—[—CR1R2—]m—)o—OH in which R1 and R2 are each independently hydrogen, an alkyl radical having 1 to 5 carbon atoms, or a hydroxyalkyl radical having 1 to 5 carbon atoms, m is an integer of 1 to 10, o is an integer of 2 to 15, with linear or branched aliphatic monocarboxylic acids having 3 to 20 carbon atoms in the presence of an adsorbent and in the presence of metal compounds selected from the group of titanium compounds, zirconium compounds, tin compounds, zinc compounds, iron compounds and aluminium compounds as a catalyst while removing the water formed and subsequently treating with steam, characterized in that the polyol ester obtained is aftertreated first with an oxidizing or reducing compound and immediately thereafter with steam at a temperature of 150 to 250° C. and over a period of 0.5 to 5 hours.

    摘要翻译: 一种通过使通式为H - ( - O - [ - CR 1 R 2 - ] m - )o-OH的多元醇反应制备的多元醇酯的方法,其中R 1和R 2各自独立地为氢,具有1至5个碳原子的烷基 原子或具有1至5个碳原子的羟烷基,m是1至10的整数,o是2至15的整数,在吸附剂存在下具有3至20个碳原子的直链或支链脂肪族单羧酸 在选择钛化合物,锆化合物,锡化合物,锌化合物,铁化合物和铝化合物作为催化剂的金属化合物的存在下,同时除去形成的水并随后用蒸汽处理,其特征在于获得的多元醇酯 首先用氧化或还原化合物进行后处理,然后立即用蒸汽在150至250℃的温度和0.5至5小时的时间内进行处理。

    Process for preparing 2-(p-fluorophenyl)-2 methyl-propionic acid and
3-(p-fluorophenyl)-2-methylpropionic acid derivatives
    17.
    发明授权
    Process for preparing 2-(p-fluorophenyl)-2 methyl-propionic acid and 3-(p-fluorophenyl)-2-methylpropionic acid derivatives 失效
    制备2-(对氟苯基)-2甲基 - 丙酸和3-(对氟苯基)-2-甲基丙酸衍生物的方法

    公开(公告)号:US5675034A

    公开(公告)日:1997-10-07

    申请号:US581757

    申请日:1996-01-02

    摘要: Process for preparing 3-(p-fluorophenyl)-2-methylpropionic acid and derivatives thereof of the formula (I), ##STR1## in which R is a hydroxy group, a linear or branched (C.sub.1 -C.sub.8)-alkoxy group, an aryloxygroup, an amino group or a (C.sub.1 -C.sub.8)-alkylamino group or a (C.sub.1 -C.sub.8)-dialkylamino group, by a) converting p-fluoroaniline into the p-fluorophenyldiazonium salt of the formula (II) ##STR2## in which X is the equivalent of an anion of an organic or inorganic acid having a pKa value of less than 7, b) reacting the diazonium salt of the formula (II) with a methacrylic acid derivative of the formula (III) ##STR3## in which R is as defined above in the presence of a palladium catalyst, if desired in the presence of a base and/or a solvent, to give the compounds of the formulae (IV) and (V) in which R is as defined above, ##STR4## and c) hydrogenating the resulting compounds of the formulae (IV) and (V) in the presence of a palladium catalyst with hydrogen.

    摘要翻译: 制备式(I)的3-(对氟苯基)-2-甲基丙酸及其衍生物的方法,其中R是羟基,直链或支链(C1-C8) - 烷氧基 基团,芳氧基,氨基或(C1-C8) - 烷基氨基或(C1-C8) - 二烷基氨基,通过a)将对氟苯胺转化为式(II)的对氟苯基重氮盐

    Process for the preparation of polycarboxylic acids and derivatives
thereof
    18.
    发明授权
    Process for the preparation of polycarboxylic acids and derivatives thereof 失效
    多羧酸及其衍生物的制备方法

    公开(公告)号:US5591893A

    公开(公告)日:1997-01-07

    申请号:US146429

    申请日:1993-10-27

    CPC分类号: C07C51/34

    摘要: The invention relates to a process for the preparation of polycarboxylic acids and derivatives thereof, the polycarboxylic acids prepared containing at least three carboxyl groups, comprising the steps(A) introducing one or more organic compounds, which contain nonaromatic carbon-carbon (C--C) double bonds, into water,(B) ozonolysis of the organic compounds in water by passing in an ozone-containing carrier gas,(C) addition of an aqueous hydrogen peroxide solution, to oxidatively work up the ozonolysis products produced in step (B), which comprises, in step (A), introducing the organic compound(s) into water having a pH of 7 or less than 7 and, in step (C), adding hydrogen peroxide in water without adding an organic solvent.

    摘要翻译: 本发明涉及一种制备多元羧酸及其衍生物的方法,所述多羧酸制备含有至少三个羧基,包括步骤(A)引入一种或多种含有非芳香碳 - 碳(CC)双键的有机化合物 (B)通过使含有臭氧的载气中的有机化合物在水中的臭氧分解,(C)加入过氧化氢水溶液以氧化处理步骤(B)中产生的臭氧分解产物, 其包括在步骤(A)中将有机化合物引入pH7或小于7的水中,并且在步骤(C)中,在水中加入过氧化氢而不添加有机溶剂。

    Process for the preparation of aromatic polyhydroxy compounds
    19.
    发明授权
    Process for the preparation of aromatic polyhydroxy compounds 失效
    芳香族多羟基化合物的制备方法

    公开(公告)号:US5364983A

    公开(公告)日:1994-11-15

    申请号:US133660

    申请日:1993-10-07

    CPC分类号: C07C37/56

    摘要: The present invention relates to a process for the preparation of aromatic polyhydroxy compounds, by reacting an aromatic hydroxyaldehyde with hydrogen peroxide, with or without the addition of a base, in the presence of a nitrile R--CN, in which R is an alkyl radical having 1 to 4 carbon atoms or a phenyl radical, which is unsubstituted or substituted by one or more alkyl groups.

    摘要翻译: 本发明涉及一种制备芳族多羟基化合物的方法,其中芳基羟基醛与过氧化氢在碱存在或不加入下,在腈R-CN存在下反应,其中R是烷基 具有1至4个碳原子或苯基,其未被取代或被一个或多个烷基取代。

    Flourine-substituted vicinal and method for their preparation, and their
use
    20.
    发明授权
    Flourine-substituted vicinal and method for their preparation, and their use 失效
    含氟取代的邻位及其制备方法及其应用

    公开(公告)号:US5292971A

    公开(公告)日:1994-03-08

    申请号:US17687

    申请日:1993-02-12

    CPC分类号: C07C35/52 C08G63/6826

    摘要: Fluorine-substituted vicinal glycols of the formula ##STR1## in which the substituents R.sub.1 to R.sub.4, independently of one another, have the following meanings: R.sub.1 to R.sub.4 =H, fluorine, C.sub.1 - to C.sub.18 -alkyl in which some or all of the hydrogens may be substituted by fluorine, and at least one of the substituents R.sub.1 to R.sub.4 is a completely fluorinated alkyl or an alkyl of the formula--(CH.sub.2).sub.m --(C.sub.n F.sub.2n+1),in which m is 1 or 2, and n is an integer from 1 to 17, and x is 0 or 1.Furthermore, a method for the preparation of the fluorinated vicinal glycols is described. If the fluorinated vicinal glycols are condensed together with dicarboxylic acids, products having enhanced thermal stability are obtained.

    摘要翻译: 取代基R 1至R 4彼此独立地具有下列含义的式“IMAGE”的氟取代的连位二醇,其中R 1至R 4 = H,氟,C 1 -C 18烷基,其中部分或全部 氢可以被氟取代,并且至少一个取代基R 1至R 4是完全氟化的烷基或式 - (CH 2)m - (C n F 2n + 1)的烷基,其中m是1或2,n 是1〜17的整数,x为0或1.此外,描述了制备氟化连二醇的方法。 如果氟化连二醇与二羧酸一起冷凝,则获得具有增强的热稳定性的产物。