中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

68 records (took 0.012 seconds)

    Method for producing polyisobutene
    52.
    发明申请
    Method for producing polyisobutene 有权
    生产聚异丁烯的方法

    公开(公告)号：US20060063901A1

    公开(公告)日：2006-03-23

    申请号：US10542928

    申请日：2004-01-23

    Applicant: Hans Rath ,  Thomas Perner ,  Helmut Mach

    Inventor： Hans Rath ,  Thomas Perner ,  Helmut Mach

    IPC: C08F4/14

    CPC classification number: C08F110/10 ,  Y02P20/582 ,  C08F4/14 ,  C08F2500/02 ,  C08F2500/03

    Abstract: A process is described for preparing polyisobutene having a content of terminal vinylidene groups of at least 75 mol % by polymerizing isobutene or isobutenic hydrocarbon mixtures in the liquid phase in the presence of a boron trifluoride complex catalyst of the composition (BF3)a.L1b.L2c.L3d where L1 is water, a primary C1-C5-alkanol and/or a secondary C3-C5-alkanol, L2 is at least one aldehyde and/or one ketone, L3 is an ether having at least 5 carbon atoms, a secondary alkanol having at least 6 carbon atoms, a primary alkanol having at least 6 carbon atoms and/or a tertiary alkanol, the b:a ratio is in the range from 0.9 to 3.0, the c:a ratio is in the range from 0.01 to 0.5, and the d:a ratio is in the range from 0 to 1.0.

    Abstract translation: 描述了一种制备具有至少75mol％的末端亚乙烯基含量的聚异丁烯的方法，其通过在液相中在混合物的三氟化硼配合物催化剂存在下聚合异丁烯或异丁烯烃混合物

    Polymers based on conjugated dienes
    55.
    发明授权
    Polymers based on conjugated dienes 失效
    基于共轭二烯的聚合物

    公开(公告)号：US5494976A

    公开(公告)日：1996-02-27

    申请号：US110223

    申请日：1993-08-23

    Applicant: Dietmar Bender ,  Klaus Bronstert ,  Helmut Mach ,  Martin Fischer

    Inventor： Dietmar Bender ,  Klaus Bronstert ,  Helmut Mach ,  Martin Fischer

    IPC: C08F8/12 ,  C08C19/02 ,  C08C19/26 ,  C08C19/40 ,  C08C19/42 ,  C08F8/00 ,  C08F8/30 ,  C08F8/42 ,  C08F236/10

    CPC classification number: C08C19/40 ,  C08C19/02 ,  C08C19/26 ,  C08C19/42 ,  C08F8/04 ,  C08F8/32 ,  C08F8/42 ,  C08F2800/20

    Abstract: Polymers Ia and Ib carrying functional groups and obtainable byA)1. hydrogenation of the olefinic double bonds of a polymer IIa comprisinga) from 20 to 100% by weight of a conjugated diene,b) from 0 to 80% by weight of an aromatic vinyl compound, andc) from 0 to 20% by weight of further comonomers,to give the hydrogenated polymer IIb,2. metallation of IIb using an organoalkali metal compound to give IIc,3. reaction of IIc with a diaziridine III to give IId, and4. hydrolysis or alcoholysis of IId to give Ia, or byB)1. partial hydrogenation of IIa to give a partially hydrogenated polymer IIb',2. epoxidation of the double bonds of IIb' to give IIe, and3. reaction of IIe with a compound IV carrying functional groups, to give Ib,are suitable as viscosity index improvers for engine oils.

    Abstract translation: 聚合物Ia和Ib携带官能团，可通过A）获得聚合物IIa的烯烃双键，其包含a）20至100重量％的共轭二烯，b）0至80重量％的 芳族乙烯基化合物，和c）0-20重量％的另外的共聚单体，得到氢化聚合物IIb，2.使用有机碱金属化合物对IIb进行金属化，得到IIc，3.IIc与二氮丙啶III的反应，得到 IId和4. IId的水解或醇解以得到Ia，或通过B）1. IIa部分氢化得到部分氢化的聚合物IIb'，2.IIb'的双键的环氧化得到IIe，和3。 IIe与携带官能团的化合物IV反应得到Ib，适用于发动机油的粘度指数改进剂。

    Method for the removal of isobutene oligomers from an isobutene polymer
    59.
    发明授权
    Method for the removal of isobutene oligomers from an isobutene polymer 失效
    从异丁烯聚合物中除去异丁烯低聚物的方法

    公开(公告)号：US07956156B2

    公开(公告)日：2011-06-07

    申请号：US12514899

    申请日：2007-11-13

    Applicant: Hans Peter Rath ,  Phillip Hanefeld ,  Helmut Mach

    Inventor： Hans Peter Rath ,  Phillip Hanefeld ,  Helmut Mach

    IPC: C08G63/02 ,  C08G63/00

    CPC classification number: C08F6/001 ,  C08F6/04 ,  C08L23/20

    Abstract: A process is described for removing isobutene oligomers from an isobutene polymer by stripping the isobutene polymer with vapors of a saturated hydrocarbon having at least 8 carbon atoms and at least partly driving out the isobutene oligomers. Troublesome isobutene oligomers are substantially removed without impairing the reactivity of the isobutene polymer (expressed as the content of the methylidene double bonds).

    Abstract translation: 描述了通过用具有至少8个碳原子的饱和烃的蒸气汽提异丁烯聚合物并且至少部分驱除异丁烯低聚物来从异丁烯聚合物中除去异丁烯低聚物的方法。 基本上除去麻烦的异丁烯低聚物，而不损害异丁烯聚合物的反应性（以亚甲基双键的含量表示）。

    Isobutene polymerisation in the presence of a donor and fluorinated acids complex
    60.
    发明授权
    Isobutene polymerisation in the presence of a donor and fluorinated acids complex 有权
    在供体和氟化酸络合物存在下，异丁烯聚合

    公开(公告)号：US07932332B2

    公开(公告)日：2011-04-26

    申请号：US11597274

    申请日：2005-05-11

    Applicant: Mirjam Herrlich-Loos ,  Christian Drohmann ,  Darijo Mijolovic ,  Thomas Wettling ,  Helmut Mach

    Inventor： Mirjam Herrlich-Loos ,  Christian Drohmann ,  Darijo Mijolovic ,  Thomas Wettling ,  Helmut Mach

    IPC: C08F2/00

    CPC classification number: C08F10/10 ,  C08F4/12 ,  C08F4/06

    Abstract: The invention relates to a method for producing mainly ethylenically unsaturated isobutene polymers, wherein the sum of proportions of molecules with a double bond in an α position and molecules with a double bond in a position β is increased to 75% mol by polymerising isobutene in a liquid phase in the presence of a diluted or dispersed catalyst complex which comprises (i) an electron donor and (ii) a compound of general formula (I) Ha Meb [MFx]c, wherein Me is a metal with oxidation state m, M is an element selected from elements of the groups 2, 3, 4, 5, 10, 11, 13, 14 or 15 of the periodic table according to the IUPAC notation of an element oxidation number n, a is an integer ≧1, b is an integer ≧0, x is an integer ≧2 and c is [(a+mb)/(x−n)]. The catalyst is preferably embodied in the form of HBF4 O(CH3)2. The inventive method makes it possible to obtain an isobutene polymer having a low fluorine-content even using technical C4 hydrocarbon portions as an isobutene source.

    Abstract translation: 本发明涉及一种主要生产烯键式不饱和异丁烯聚合物的方法，其中α位上具有双键的分子和位置上具有双键的分子的比例之和< 通过在稀释或分散的催化剂配合物存在下在液相中聚合异丁烯而增加至75％摩尔，其包括（i）电子给体和（ii）通式（I）的化合物Ha Meb [MF x] c， 其中Me是具有氧化态m的金属，M是根据元素氧化的IUPAC符号从元素周期表的第2,3,4,5,10,11,13,14或15族的元素中选出的元素 数n，a为整数≥1，b为整数≥0，x为整数≥2，c为[（a + mb）/（x-n）]。 催化剂优选以HBF 4 O（CH 3）2的形式实施。 本发明的方法使得即使使用工业C4烃部分作为异丁烯源，也可以获得具有低含氟量的异丁烯聚合物。

Patent Agency Ranking