中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

10 records (took 0.013 seconds)

    Diallyl terephthalate prepolymer and process for producing seam
    5.
    发明授权
    Diallyl terephthalate prepolymer and process for producing seam 失效
    对苯二甲酸二烯丙酯预聚物和生产接缝的方法

    公开(公告)号：US5003020A

    公开(公告)日：1991-03-26

    申请号：US235599

    申请日：1988-08-24

    Applicant: Hiroshi Uchida ,  Shigehiro Chaen ,  Kuniomi Marumo

    Inventor： Hiroshi Uchida ,  Shigehiro Chaen ,  Kuniomi Marumo

    IPC: C08F18/18

    CPC classification number: C08F18/18

    Abstract: A diallyl terephthalate prepolymer consisting essentially of diallyl terephthalate monomer units, having(a) 10 or less of the monomer units in the carbon-carbon bonded molecular chain portion which is composed of the allyl groups of the monomer units, and either(b) an unsaturation in a range of from 40 to 70, as represented by an iodine value determined by the Wijs method,(c) a number-average molecular weight in a range of from 6,000 to 10,000 as polystyrene, and a weight-average molecular weight in a range of from 10,000 to 70,000 as polystyrene, both being determined by gel permeation chromatography, and(d) a melt viscosity in a range of from 30,000 to 90,000 CP at 170.degree. C., as determined by a Koka flow tester, or(b) an unsaturation in a range of from 50 to 80, as represented by an iodine value determined by the Wijs method,(c) a number-average molecular weight in a range of from 8,000 to 20,000 as polystyrene, and a weight-average molecular weight in a range of from 30,000 to 90,000 as polystyrene, both being determined by gel permeation chromatography, and(d) a melt viscosity in a range of from 20,000 to 90,000 CP at 130.degree. C., as determined by a Koka flow tester.

    Catalyst for decomposing nitrous oxide, process for producing the same and method for decomposing nitrous oxide
    7.
    发明授权
    Catalyst for decomposing nitrous oxide, process for producing the same and method for decomposing nitrous oxide 有权
    用于分解一氧化二氮的催化剂，其制备方法和分解一氧化二氮的方法

    公开(公告)号：US06846471B2

    公开(公告)日：2005-01-25

    申请号：US09947540

    申请日：2001-09-07

    Applicant: Masatoshi Hotta ,  Masakazu Oka ,  Yoshio Furuse ,  Hitoshi Atobe ,  Shigehiro Chaen

    Inventor： Masatoshi Hotta ,  Masakazu Oka ,  Yoshio Furuse ,  Hitoshi Atobe ,  Shigehiro Chaen

    IPC: A61M16/01 ,  B01D53/86 ,  B01D53/94 ,  B01J23/00 ,  B01J23/46 ,  B01J23/58 ,  B01J23/60 ,  B01J23/62 ,  B01J23/63 ,  B01J23/656 ,  B01J23/89 ,  B01J8/00 ,  B01J23/32 ,  B01J23/40 ,  B01J23/42

    CPC classification number: B01J23/005 ,  B01D53/8628 ,  B01D2257/402 ,  B01J23/464 ,  B01J23/58 ,  B01J23/60 ,  B01J23/89 ,  Y02C20/10

    Abstract: The invention relates to a catalyst for decomposing nitrous oxide, which is [1] a catalyst comprising a support having supported thereon aluminum, magnesium and rhodium, [2] a catalyst comprising an alumina support having supported thereon magnesium and rhodium, [3] a catalyst comprising a support having supported thereon rhodium, the support comprising a spinel crystalline composite oxide formed by magnesium and at least a part of aluminum, [4] a catalyst comprising a support having supported thereon aluminum, rhodium and at least one metal selected from zinc, iron, manganese and nickel, [5] a catalyst comprising an alumina support having supported thereon rhodium and at least one metal selected from zinc, iron, manganese and nickel, or [6] a catalyst comprising a support having supported thereon rhodium, the support comprising a spinel crystalline composite oxide formed by at least a part of aluminum and the at least one metal selected from zinc, iron, manganese and nickel. The catalyst is not easily deteriorated in the activity due to moisture, favored with low-temperature decomposition activity and capable of reducing the amount of NOx generated to the allowable concentration or less. The invention also relates to a process for producing the catalyst and to a method for decomposing nitrous oxide.

    Abstract translation: 本发明涉及一种用于分解一氧化二氮的催化剂，其是[1]一种催化剂，其包含负载有铝，镁和铑的载体，[2]一种催化剂，其包含负载有镁和铑的氧化铝载体，[3] a 催化剂包括其上负载有铑的载体，所述载体包含由镁和至少一部分铝形成的尖晶石结晶复合氧化物，[4]催化剂，其包含负载有铝，铑和至少一种选自锌的金属的催化剂 ，铁，锰和镍，[5]催化剂，其包含负载有铑的氧化铝载体和选自锌，铁，锰和镍的至少一种金属的催化剂，或[6]一种催化剂，其包含其上负载有铑的载体， 载体，其包含由至少一部分铝和选自锌，铁，锰和镍中的至少一种金属形成的尖晶石结晶复合氧化物。 催化剂不易由于水分而导致的活性降低，有利于低温分解活性，并且能够将生成的NOx的量减少至允许浓度或更低。 本发明还涉及一种生产该催化剂的方法和一种分解一氧化二氮的方法。

    Novel diallyl terephthalate prepolymer and method for preparing it
    9.
    发明授权
    Novel diallyl terephthalate prepolymer and method for preparing it 失效
    新型对苯二甲酸二烯丙酯预聚物及其制备方法

    公开(公告)号：US4959451A

    公开(公告)日：1990-09-25

    申请号：US422727

    申请日：1989-10-17

    Applicant: Hiroshi Uchida ,  Kuniomi Marumo ,  Shigehiro Chaen

    Inventor： Hiroshi Uchida ,  Kuniomi Marumo ,  Shigehiro Chaen

    IPC: C07C69/83 ,  C08F283/01 ,  C08F290/00 ,  C08F291/02 ,  C08F299/04 ,  C08G63/21 ,  C08G63/52 ,  C08G63/547 ,  C08L67/06

    CPC classification number: C08G63/547 ,  C08F291/02 ,  C08F299/0478 ,  C08F299/0485 ,  C08L67/06

    Abstract: 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.

    Abstract translation: 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。

Patent Agency Ranking