中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

389 records (took 0.016 seconds)

    Fuels for gasoline engines
    53.
    发明授权
    Fuels for gasoline engines 失效
    汽油发动机燃料

    公开(公告)号：US4959077A

    公开(公告)日：1990-09-25

    申请号：US243072

    申请日：1988-09-12

    Applicant: Franz-Dieter Martischius ,  Hans P. Rath ,  Hans-Henning Vogel ,  Norbert Greif ,  Knut Oppenlaender ,  Walter Denzinger ,  Heinrich Hartmann

    Inventor： Franz-Dieter Martischius ,  Hans P. Rath ,  Hans-Henning Vogel ,  Norbert Greif ,  Knut Oppenlaender ,  Walter Denzinger ,  Heinrich Hartmann

    IPC: C10L1/234 ,  C08F8/44 ,  C10L1/18 ,  C10L1/192 ,  C10L1/195 ,  C10L1/196 ,  C10L1/22 ,  C10L1/236 ,  C10L10/08 ,  F02B1/04 ,  F02B75/02

    CPC classification number: C10L1/2364 ,  C08F8/44 ,  C10L1/1955 ,  C10L1/1966 ,  F02B1/04 ,  F02B2075/027

    Abstract: A fuel for gasoline engines contains a small amount of a copolymer of an olefin of from 2 to 40 carbon atoms and/or a cycloolefin of from 3 to 10 carbon atoms with maleic anhydride and/or a copolymer of an alkyl vinyl ether of from 1 to 30 carbon atoms in the alkyl group and/or a cycloalkyl vinyl ether of from 3 to 10 carbon atoms in the alkyl group with maleic anhydride and/or a copolymer of an alkyl vinyl ether of from 1 to 30 carbon atoms in the alkyl group and/or a cycloalkyl vinyl ether of from 3 to 10 carbon atoms in the alkyl group and an olefin of from 2 to 40 carbon atoms and/or a cycloolefin of from 3 to 10 carbon atoms with maleic anhydride having a total molecular weight of from 500 to 20,000 g per mole, the carboxyl groups on the copolymer having been wholly or partly converted with an alkali metal or alkaline earth metal to form an alkali metal or alkaline earth metal salt and the remaining carboxyl groups having been converted with an alcohol and/or an amine of up to 50 carbon atom into the corresponding ester and/or amide groups and/or ammonium salts.

    Abstract translation: 汽油发动机的燃料含有少量的含有2-40个碳原子的烯烃和/或3-10个碳原子的烯烃与马来酸酐和/或烷基乙烯基醚共聚物的共聚物，其中共聚物为1 烷基中的至少30个碳原子和/或烷基中具有3至10个碳原子的环烷基乙烯基醚与烷基中的马来酸酐和/或1至30个碳原子的烷基乙烯基醚的共聚物 和/或烷基中具有3至10个碳原子的环烷基乙烯基醚和2至40个碳原子的烯烃和/或3至10个碳原子的环烯烃与马来酸酐的总分子量为 每摩尔500至20,000g，共聚物中的羧基已经用碱金属或碱土金属完全或部分转化，以形成碱金属或碱土金属盐，剩余的羧基已被醇和/ 或高达50的胺 碳原子进入相应的酯和/或酰胺基和/或铵盐。

    Esters of unsaturated carboxylic acids
    56.
    发明授权
    Esters of unsaturated carboxylic acids 失效
    不饱和羧酸酯

    公开(公告)号：US4762946A

    公开(公告)日：1988-08-09

    申请号：US851981

    申请日：1986-04-14

    Applicant: Wolfgang Ritter ,  Wolfgang Zoellner

    Inventor： Wolfgang Ritter ,  Wolfgang Zoellner

    IPC: C07C69/527 ,  C08F20/28 ,  C10L1/196 ,  C10L1/198 ,  C10L1/236 ,  C07C69/68 ,  C07C69/73

    CPC classification number: C10L1/1963 ,  C08F20/28 ,  C10L1/1983 ,  C10L1/2364

    Abstract: Polymeric pour point depressants are described which are prepared from new esters of .alpha.,.beta.-olefinically unsaturated carboxylic acids of the formulaR.sub.1 --CO--[--O--A--CO--]--.sub.n ORwhereinR.sub.1 --CO-- is an .alpha.,.beta.-olefinically unsaturated carboxylic acid residue containing from 3 to 6 carbon atoms,R is a saturated or unsaturated hydrocarbon radical containing from 10 to 24 carbon atoms,--[--O--A--CO--]-- is a residue of a hydroxycarboxylic acid having from 2 to 6 carbon atoms,A is an aliphatic radical having from 1 to 5 carbon atoms, andn is a number having a value of from 1 to 18.

    Abstract translation: 描述了由式R1-CO - [ - OA-CO - ] - nOR的α，β-烯属不饱和羧酸的新酯制备的聚合倾点下降剂，其中R1-CO-是α，β-烯属不饱和的 含有3至6个碳原子的羧酸残基，R是含有10至24个碳原子的饱和或不饱和烃基， - [ - OA-CO - ] - 是具有2至6个碳原子的羟基羧酸的残基 A是具有1至5个碳原子的脂族基团，n是1至18的数值。

    Copolymers based on maleic anhydride and .alpha., .beta.-unsaturated compounds a process for their preparation and their use as paraffin inhibitors
    57.
    发明授权
    Copolymers based on maleic anhydride and .alpha., .beta.-unsaturated compounds a process for their preparation and their use as paraffin inhibitors 失效
    基于马来酸酐和α，β-不饱和化合物的共聚物，其制备方法及其作为石蜡抑制剂的用途

    公开(公告)号：US4670516A

    公开(公告)日：1987-06-02

    申请号：US700411

    申请日：1985-02-11

    Applicant: Gunter Sackmann ,  Jan Mazanek ,  Wolfgang Oberkirch ,  Herbert Bartl

    Inventor： Gunter Sackmann ,  Jan Mazanek ,  Wolfgang Oberkirch ,  Herbert Bartl

    IPC: C08F8/32 ,  C08F8/44 ,  C10L1/196 ,  C10L1/236

    CPC classification number: C10L1/1966 ,  C08F8/32 ,  C08F8/44 ,  C10L1/2364

    Abstract: The new copolymers based on maleic anhydride and .alpha.,.beta.-unsaturated compounds contain, as bivalent structural units,A: 20 to 95 mole % of the structural element ##STR1## B: 0 to 40 mole % of the structural element ##STR2## C: and 0 to 40 mole % of the structural element ##STR3## the sum of the mole percents of (A), (B) and (C) being 100, and wherein R.sup.1 and R.sup.2 are identical or different and denote hydrogen, alkyl, optionally substituted aryl or the ester group ##STR4## in which R.sup.4 represents alkyl with 1 to 20 carbon atoms,R.sup.3 denotes an alkyl, cycloalkyl or optionally substituted aryl radical with 1 to 20 carbon atoms andX and Y are identical or different and represent the group--O--R.sup.5in whichR.sup.5 denotes hydrogen, a cation or alkyl with 1 to 40 carbon atoms, orX and Y represent the group--NHR.sup.3in which R.sup.3 has the abovementioned meaning,at least one of the radicals X and Y representing the group --O--R.sup.5, and at least one of the radicals in the radicals X and Y containing at least 18 carbon atoms.The new copolymers can be prepared by reacting alternating copolymers of maleic anhydride and .alpha.,.beta.-unsaturated compounds with monoalcohols and monoamines. They can be used as paraffin inhibitors.

    Abstract translation: 基于马来酸酐和α，β-不饱和化合物的新共聚物含有作为二价结构单元的A：20至95摩尔％的结构元素B：0至40摩尔％的结构元素 ：（A），（B）和（C）的摩尔百分数的总和为100，其中R 1和R 2相同或不同，表示氢，烷基， 任选取代的芳基或其中R 4表示具有1至20个碳原子的烷基的酯基“IMAGE”，R 3表示具有1至20个碳原子的烷基，环烷基或任选取代的芳基，X和Y相同或不同， 基团-O-R5，其中R5表示氢，阳离子或具有1至40个碳原子的烷基，或X和Y表示其中R3具有上述含义的基团-NHR 3，基团X和Y中的至少一个表示 基团-O-R5，并且基团X和Y中的至少一个基团含有至少1个 8个碳原子。 新的共聚物可以通过使马来酸酐和α，β-不饱和化合物的交替共聚物与一元醇和单胺反应来制备。 它们可以用作石蜡抑制剂。

Patent Agency Ranking