Polyether containing polymers for oxygen scavenging
    5.
    发明授权
    Polyether containing polymers for oxygen scavenging 失效
    用于除氧的聚醚聚合物

    公开(公告)号:US06455620B1

    公开(公告)日:2002-09-24

    申请号:US09630519

    申请日:2000-08-02

    IPC分类号: C08K506

    摘要: The present invention relates to oxygen scavenging compositions comprising an oxidation catalyst and at least one polyether selected from the group consisting of unsubstituted poly(alkylene glycol)s having alkylene chains of 1 to 3 carbon atoms, substituted or unsubstituted poly(alkylene glycol)s having alkylene chains of at least 4 carbon atoms, copolymers of poly(alkylene glycol)s, blends containing poly(alkylene glycol)s and mixtures thereof. The invention further relates to polymers containing said oxygen scavenging compounds and articles made therefrom.

    摘要翻译: 本发明涉及包含氧化催化剂和至少一种选自具有1至3个碳原子的亚烷基链的未取代的聚(亚烷基二醇),取代或未取代的聚(亚烷基二醇)的聚醚的氧清除组合物,其具有 至少4个碳原子的亚烷基链,聚(亚烷基二醇)的共聚物,含有聚(亚烷基二醇)的共混物及其混合物。 本发明还涉及含有所述除氧化合物和由其制成的制品的聚合物。

    Process for the production of 3-buten-1-ol
    8.
    发明授权
    Process for the production of 3-buten-1-ol 失效
    3-丁烯-1-醇的制备方法

    公开(公告)号:US06790999B1

    公开(公告)日:2004-09-14

    申请号:US10377425

    申请日:2003-02-28

    IPC分类号: C07C2700

    CPC分类号: C07C29/132 C07C33/025

    摘要: Disclosed is a process for the continuous, semi-continuous or batch production of 3-buten-1-ol from 3,4-epoxy-1-butene wherein 3,4-epoxy-1-butene and formic acid are fed to a reaction zone having a catalyst solution comprising a palladium(0) compound, a tertiary phosphine, a trialkylamine and an organic solvent. Preferably in the operation of this invention, 3-buten-1-ol product and reaction side products serve as the organic solvent for the process. The preferred mode of operation is continuous addition of reactants to the reaction mixture with simultaneous, continuous distillation of a reaction product comprising 3-buten-1-ol.

    摘要翻译: 公开了一种从3,4-环氧-1-丁烯连续,半连续或间歇生产3-丁烯-1-醇的方法,其中将3,4-环氧-1-丁烯和甲酸进料至反应 具有包含钯(0)化合物,叔膦,三烷基胺和有机溶剂的催化剂溶液的区域。 优选在本发明的操作中,3-丁烯-1-醇产物和反应副产物用作该方法的有机溶剂。 优选的操作模式是连续地向反应混合物中加入反应物,同时连续蒸馏包含3-丁烯-1-醇的反应产物。

    Process for the purification of cyclopropanecarboxaldehyde
    9.
    发明授权
    Process for the purification of cyclopropanecarboxaldehyde 失效
    环丙烷甲醛纯化方法

    公开(公告)号:US06353140B1

    公开(公告)日:2002-03-05

    申请号:US09877860

    申请日:2001-06-08

    IPC分类号: C07C4700

    摘要: Disclosed is process for the treatment of cyclopropanecarboxaldehdye (CPCA) which contains crotonaldehyde impurity with a base at elevated temperature to convert the crotonaldehyde to one or more higher boiling compounds followed by distillation to recover CPCA substantially free of crotonaldehyde. This selective reaction may be combined with a distillation to purify CPCA or in combination with the reaction of the CPCA in the treated mixture to produce a CPCA-derivative while avoiding or minimizing the formation of the analogous crotonaldehyde derivative.

    摘要翻译: 公开了用于处理在高温下含有巴豆醛杂质的环丙烷甲醛(CPCA)的方法,以将巴豆醛转化为一种或多种较高沸点化合物,随后蒸馏以回收基本上不含巴豆醛的CPCA。 该选择性反应可以与蒸馏组合以纯化CPCA或与处理的混合物中CPCA的反应组合以产生CPCA衍生物,同时避免或最小化类似的巴豆醛衍生物的形成。

    Process for the preparation of 3-furoate esters and novel intermediate compounds
    10.
    发明授权
    Process for the preparation of 3-furoate esters and novel intermediate compounds 失效
    制备3-糠酸酯和新型中间体化合物的方法

    公开(公告)号:US06184394B2

    公开(公告)日:2001-02-06

    申请号:US09491654

    申请日:2000-01-27

    IPC分类号: C07D30720

    CPC分类号: C07D307/68

    摘要: Disclosed is a two-step process wherein a 4-acyl-2,3-dihydrofuran is converted to a 2-alkoxy-3-acyl-3-halotetrahydorfuran which then is contacted with an strong base to produce an alkyl 3-furoate. Also disclosed are novel 2-alkoxy-3-acyl-3-halotetrahydrofuran intermediates.

    摘要翻译: 公开了一种两步法,其中4-酰基-2,3-二氢呋喃转化成2-烷氧基-3-酰基-3-卤代四氢呋喃,然后与强碱接触以产生3-糠酸烷基酯。 还公开了新的2-烷氧基-3-酰基-3-卤代四氢呋喃中间体。