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    • 3. 发明授权
    • Novel diallyl terephthalate prepolymer and method for preparing it
    • 新型对苯二甲酸二烯丙酯预聚物及其制备方法
    • US4959451A
    • 1990-09-25
    • US422727
    • 1989-10-17
    • Hiroshi UchidaKuniomi MarumoShigehiro Chaen
    • Hiroshi UchidaKuniomi MarumoShigehiro Chaen
    • C07C69/83C08F283/01C08F290/00C08F291/02C08F299/04C08G63/21C08G63/52C08G63/547C08L67/06
    • C08G63/547C08F291/02C08F299/0478C08F299/0485C08L67/06
    • A diallyl terephthalate prepolymer is here disclosed which essentially has the following structureCH.sub.2 .dbd.CHCH.sub.2 O(COArCOOBO).sub.n COArCOOCH.sub.2 CH.dbd.CH.sub.2wherein B is a divalent organic residue derived from a diol having 2 to 20 carbon atoms, Ar is a 1,4-phenylene group, and n is a value of 1 to 100, and having an unsaturation in a range of 20 to 100, as represented by an iodine value determine by the Wijs method, and there is also disclosed a method for preparing the diallyl terephthalate prepolymer.The method of the present invention permits obtaining the allyl prepolymer having excellent physical properties from inexpensive raw materials with less labor.Since this prepolymer has a double bond suitably, it can be mixed with unsaturated polyester resin or diallyl phthalate resin, when used. Moreover, the prepolymer can be also used as a crosslinking agent for EPR, elaslene, synthetic rubber and the like.
    • 此处公开了二烯丙基对苯二酸酯预聚物,其基本上具有以下结构CH 2 = CHCH 2 O(COArCOOBO)n COArCOOCH 2 CH = CH 2其中B是衍生自具有2至20个碳原子的二醇的二价有机残基,Ar是1,4-亚苯基, n为1〜100,不饱和度为20〜100,以由Wijs法测定的碘值表示,并且还公开了对苯二甲酸二烯丙酯预聚物的制备方法。 本发明的方法可以从较便宜的原料获得具有优异物理性能的烯丙基预聚物,而且劳动力少。 由于该预聚物适当地具有双键,因此可以在使用时与不饱和聚酯树脂或邻苯二甲酸二烯丙酯树脂混合。 此外,预聚物也可以用作EPR,金刚石,合成橡胶等的交联剂。
    • 7. 发明授权
    • Process for preparation of N-(.alpha.-alkoxyethyl)-carboxylic acid amide
    • 制备N-(α-烷氧基乙基) - 羧酸酰胺的方法
    • US4997984A
    • 1991-03-05
    • US452936
    • 1989-12-19
    • Shuichi SugitaTetsuo KudoKuniomi Marumo
    • Shuichi SugitaTetsuo KudoKuniomi Marumo
    • C07C231/12
    • C07C231/12Y02P20/582
    • A process for the preparation of an N-(.alpha.-alkoxyethyl)carboxylic acid amide represented by the following formula [I]: ##STR1## wherein R stands for a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a benzyl group or an aryl group, and R.sup.1 stands for an alkyl group having 1 to 10 carbon atoms or a cycloalkyl group,which comprises reacting an ethylidene-bisamide represented by the following formula [II]:CH.sub.3 CH(NHCOR).sub.2 [II]wherein R stands for a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a benzyl group or an aryl group,with an alkanol in the presence of an acid catalyst. According to this process, a high-purity N-(.alpha.-alkoxyethyl)carboxylic acid amide, which is valuable as an intermediate for the production of an N-vinylcarboxylic acid amide and the like, can be easily prepared from cheap and easily available starting materials.
    • 由下式[I]表示的制备N-(α-烷氧基乙基)羧酸酰胺的方法:其中R代表氢原子,具有1至6个碳原子的烷基, 苄基或芳基,R1表示碳原子数1〜10的烷基或环烷基,其包括使下式[II]表示的亚乙基双酰胺与CH 3 CH(NHCOR)2 [II] 其中R代表氢原子,具有1至6个碳原子的烷基,苄基或芳基,与烷基醇在酸催化剂存在下反应。 根据该方法,可以从便宜且容易获得的起始物中容易地制备作为制备N-乙烯基羧酸酰胺等的中间体有价值的高纯度N-(α-烷氧基乙基)羧酸酰胺 材料