利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

62 条记录 (耗时 0.022 秒)

    Process for the preparation of modified polymers
    2.
    发明授权
    Process for the preparation of modified polymers 失效
    改性聚合物的制备方法

    公开(公告)号：US4481337A

    公开(公告)日：1984-11-06

    申请号：US533717

    申请日：1983-09-19

    申请人： Donald J. Burlett ,  Dane K. Parker

    发明人： Donald J. Burlett ,  Dane K. Parker

    IPC分类号： C08F8/00 ,  C08F8/30 ,  C08F8/34 ,  C08F8/40 ,  C08F8/44 ,  C08F114/02

    CPC分类号： C08F8/44 ,  C08F8/40

    摘要： There is disclosed a process for the modification of a polymer having pendant halo-benzyl groups comprising(a) contacting said polymer with a quaternary ammonium or phosphonium salt and an alkali ionizable molecule containing anti-degradant properties thereafter(b) contacting the resultant mixture with an alkaline compound.

    摘要翻译： 公开了具有侧卤基 - 苄基的聚合物的改性方法，其包括（a）使所述聚合物与季铵盐或鏻盐和含有抗降解性的碱可离子分子接触（b）使所得混合物与 一种碱性化合物。

    METHOD FOR THE DIIMIDE HYDROGENATION OF EMULSIFIED UNSATURATED POLYMERS
    3.
    发明公开
    METHOD FOR THE DIIMIDE HYDROGENATION OF EMULSIFIED UNSATURATED POLYMERS 审中-公开

    公开(公告)号：US20240084046A1

    公开(公告)日：2024-03-14

    申请号：US18488370

    申请日：2023-10-17

    申请人： Dane K. Parker

    发明人： Dane K. Parker

    IPC分类号： C08C19/02 ,  C08C19/26

    CPC分类号： C08C19/02 ,  C08C19/26

    摘要： The diimide hydrogenation of unsaturated elastomers in latex utilizing hydrazine and hydrogen peroxide or oxygen, is a metal-catalyzed process. Copper ion has been found to be the most superior catalyst for this reaction, requiring an extremely low concentration for optimal results. Generated diimide efficiently hydrogenates the polymer olefinic unsaturation while generating water and nitrogen as byproducts. With a falling hydrazine concentration during the hydrogenation process however, a competing copper-catalyzed process capable of generating hydroxyl, superoxide and/or copper-oxyl radicals becomes increasingly competitive. The ability of these radical species to abstract hydrogen from the polymer backbone to generate polymeric radicals, ultimately results in crosslinking that occurs concurrently with hydrogenation. The concept of an OH radical inactivating ligand (OIL) complexed with copper is demonstrated to ameliorate the crosslinking reaction.

    Process for the preparation of hydrogenated rubber
    4.
    发明授权
    Process for the preparation of hydrogenated rubber 失效
    氢化橡胶的制备方法

    公开(公告)号：US5424356A

    公开(公告)日：1995-06-13

    申请号：US210856

    申请日：1994-03-21

    申请人： Dane K. Parker ,  David M. Ruthenburg

    发明人： Dane K. Parker ,  David M. Ruthenburg

    IPC分类号： C08F8/04 ,  C08C19/04 ,  C08C19/22 ,  C08C19/34 ,  C08F8/30 ,  C08F8/32 ,  C08L39/00

    CPC分类号： C08C19/04 ,  C08C19/22 ,  C08C19/34 ,  C08F8/32

    摘要： The present invention relates to a process for the preparation of a latex of hydrogenated elastomeric polymer comprising:(1) combining an unsaturated polymer in latex form with(a) an oxidant selected from the group consisting of oxygen, air and hydroperoxide;(b) a reducing agent selected from hydrazine and hydrates thereof; and(c) a metal ion activator;(2) heating the mixture to a temperature from 0.degree. C. to the reflux temperature of the reaction mixture;(3) treating the mixture with ozone in an amount and under conditions which are sufficient for the ozone to react with residual polymer unsaturation to form an ozonated latex of elastomeric polymer having at least one terminal aldehyde end group;(4) treating the ozonated latex with hydroxylamine in an amount and under conditions which are sufficient to convert aldehyde end groups of the elastomeric polymer to oxime end groups to form a oximated polymer latex.

    摘要翻译： 本发明涉及一种制备氢化弹性体聚合物胶乳的方法，包括：（1）将胶乳形式的不饱和聚合物与（a）选自氧，空气和氢过氧化物的氧化剂结合; （b）选自肼及其水合物的还原剂; 和（c）金属离子活化剂; （2）将混合物加热至0℃至反应混合物的回流温度; （3）以足以使臭氧​​与残余聚合物不饱和度反应的量和足够的条件处理臭氧混合物以形成具有至少一个末端醛端基的弹性体聚合物的臭氧化胶乳; （4）用羟胺处理臭氧化胶乳的量和足以将弹性体聚合物的醛端基转化成肟端基的条件以形成肟化聚合物胶乳。

    Blend of rubber latices containing a hydrogenated rubber latex
    5.
    发明授权
    Blend of rubber latices containing a hydrogenated rubber latex 失效
    包含加氢橡胶胶的橡胶胶条的混合物

    公开(公告)号：US5221714A

    公开(公告)日：1993-06-22

    申请号：US680657

    申请日：1991-04-04

    申请人： Dane K. Parker

    发明人： Dane K. Parker

    IPC分类号： C08L21/02 ,  C08C19/02 ,  C08L9/10 ,  C08L21/00 ,  C08L23/18 ,  C08L23/22

    CPC分类号： C08L9/04 ,  C08C19/02 ,  C08L9/10 ,  C08L19/02 ,  C08L9/08

    摘要： The present invention relates to a blend of rubber latices comprising, based on dry weight,(A) from about 80 to about 50 phr of a latex selected from the group consisting of polybutadiene latex, natural rubber or polyisoprene latex, styrene-butadiene copolymer latex, acrylonitrile-butadiene copolymer latex, butadiene-isoprene copolymer latex, isoprene-isobutylene copolymer latex, styrene-isoprene-butadiene copolymer latex and mixtures thereof: and(B) from about 20 to about 50 phr of a hydrogenated rubber latex that is prepared in accordance with a process comprising:(1) combining an unsaturated polymer in latex form, which is derived from 5 to 100 percent by weight of a conjugated diene monomer and 95 to 0 percent by weight of an ethylenically unsaturated monomer, with(a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides;(b) a reducing agent selected from hydrazine and hydrates thereof: and(c) a metal ion activator;(2) heating the mixture to a temperature from 0.degree. C. to the reflux temperature of the reaction mixture.

    摘要翻译： 本发明涉及橡胶胶乳的混合物，其包含基于干重的（A）约80至约50phr的选自聚丁二烯胶乳，天然橡胶或聚异戊二烯胶乳的胶乳，苯乙烯 - 丁二烯共聚物胶乳 ，丙烯腈 - 丁二烯共聚物胶乳，丁二烯 - 异戊二烯共聚物胶乳，异戊二烯 - 异丁烯共聚物胶乳，苯乙烯 - 异戊二烯 - 丁二烯共聚物胶乳及其混合物;和（B）约20至约50phr氢化橡胶胶乳， 该方法包括：（1）将胶体形式的不饱和聚合物与5-100重量％的共轭二烯单体和95至0重量％的烯键式不饱和单体组合，其中（a） 选自氧，空气和氢过氧化物的氧化剂; （b）选自肼及其水合物的还原剂;和（c）金属离子活化剂; （2）将混合物加热至0℃至反应混合物的回流温度。

    Process for the synthesis and recovery of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)-phenyl]ethyl]-2-oxo-1-H-py rrolo-1-carboxamide
    6.
    发明授权
    Process for the synthesis and recovery of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)-phenyl]ethyl]-2-oxo-1-H-py rrolo-1-carboxamide 失效
    合成和回收四氢-N- [1-甲基-1- [3-（1-甲基乙烯基） - 苯基]乙基] -2-氧代-1H-吡咯-1-甲酰胺的方法

    公开(公告)号：US5208347A

    公开(公告)日：1993-05-04

    申请号：US876149

    申请日：1992-04-30

    申请人： Dane K. Parker ,  Richard T. Musleve

    发明人： Dane K. Parker ,  Richard T. Musleve

    IPC分类号： C07D207/26 ,  C07D207/263

    CPC分类号： C07D207/27

    摘要： The present invention discloses a process for the preparation of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide which is comprised of (1) reacting m-isopropenyl .alpha.,.alpha.-dimethylbenzylisocyanate with 2-pyrrolidinone at a temperature which is within the range of about 80.degree. C. to about 150.degree. C. to produce a molten reaction product; (2) mixing the molten reaction product with an aqueous emulsifier solution to form an aqueous medium, wherein the aqueous emulsifier solution contains from about 0.1 weight percent to about 10 weight percent emulsifier, and wherein the weight ratio of the molten reaction product to the emulsifier solution in the aqueous medium is within the range of 1:0.5 to 1:100; (3) allowing the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide in the aqueous medium to crystallize under conditions of agitation into the form of essentially spherical particles; and (4) recovering the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide particles from the aqueous medium by filtration.

    摘要翻译： 本发明公开了一种制备四氢-N- [1-甲基-1- [3-（1-甲基乙烯基）苯基]乙基] -2-氧代-1H-吡咯-1-羧酰胺的方法，其由 （1）在约80℃至约150℃的温度范围内使间 - 异丙烯基α，α-二甲基苄基异氰酸酯与2-吡咯烷酮反应以产生熔融反应产物; （2）将熔融反应产物与水性乳化剂溶液混合以形成水性介质，其中所述水性乳化剂溶液含有约0.1重量％至约10重量％的乳化剂，并且其中所述熔融反应产物与所述乳化剂的重量比 水介质中的溶液在1:0.5至1:100的范围内; （3）使水性介质中的四氢-N- [1-甲基-1- [3-（1-甲基乙烯基）苯基]乙基] -2-氧代-1H-吡咯-1-甲酰胺在条件下 搅拌成基本上是球形颗粒的形式; 和（4）通过过滤从水性介质中回收四氢-N- [1-甲基-1- [3-（1-甲基乙烯基）苯基]乙基] -2-氧代-1H-对甲基-1-甲酰胺颗粒。

    Aqueous preparation of sulfenamides
    10.
    发明授权
    Aqueous preparation of sulfenamides 失效
    亚磺酰胺的水性制剂

    公开(公告)号：US3947459A

    公开(公告)日：1976-03-30

    申请号：US512807

    申请日：1974-10-04

    申请人： Penelope R. Pappas ,  Dane K. Parker

    发明人： Penelope R. Pappas ,  Dane K. Parker

    IPC分类号： C07D417/12 ,  C07D277/80

    CPC分类号： C07D277/80

    摘要： This invention relates to an improved process for preparing thiazolesulfenamides from aqueous chloramines and alkali metal salts of mercaptothiazoles, in water. The chloramine mixture can be prepared from amines or aqueous amine salt solutions.

    摘要翻译： 本发明涉及一种由水性氯胺和巯基噻唑的碱金属盐制备噻唑亚磺酰胺的改进方法。 氯胺混合物可以由胺或胺盐水溶液制备。