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    • 3. 发明授权
    • Treatment of (Co)polymers to remove residual monomers
    • (Co)聚合物的处理以除去残留的单体
    • US4503219A
    • 1985-03-05
    • US489558
    • 1983-04-28
    • Rudi W. ReffertJuergen HambrechtRudolf H. JungAdolf Echte
    • Rudi W. ReffertJuergen HambrechtRudolf H. JungAdolf Echte
    • C08F6/00C08G6/00C08J3/00
    • C08F6/006
    • (Co)polymers which are composed of one or more monomers from the group comprising(a) the vinyl-aromatic monomers and(b) the ethylenically unsaturated monomersand furthermore contain one or more monomer components (a) or (b), or (a) and (b), as unreacted residual monomers are treated at above the glass temperature of the (co)polymer and in the presence of one or more assistants, which have been added to the (co)polymer. The assistant used is a bicyclic compound of the general formula I ##STR1## where X is a methylene, ethylene, 1,1-ethenyl, 1,2-ethenyl, carbonyl, azo, amino, ether or thioether group which is unsubstituted or substituted by halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyl, carboxyalkyl, an ether group or a thioether group, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each hydrogen, halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyalkyl or nitrile, R.sup.5 and R.sup.6 are each hydrogen, halogen, alkyl or carboxyalkyl, and R.sup.7 and R.sup.8 are each hydrogen, halogen, alkyl, alkenyl, aryl, carboxyalkyl, carboxyl or nitrile.
    • (a)乙烯基芳族单体和(b)烯键式不饱和单体并且还含有一种或多种单体组分(a)或(b)或(a)的单体组分 a)和(b)中,作为未反应的残余单体在(共)聚合物的玻璃化温度以上和在已加入到(共))聚合物中的一种或多种助剂的存在下进行处理。 使用的助剂是通式I的双环化合物,其中X是未取代或取代的亚甲基,亚乙基,1,1-乙烯基,1,2-乙烯基,羰基,偶氮,氨基,醚或硫醚基 卤素,烷基,烯基,环烷基,芳基,羧基,羧基烷基,醚基或硫醚基,R1,R2,R3和R4各自为氢,卤素,烷基,烯基,环烷基,芳基,羧烷基或腈,R5和 R 6各自为氢,卤素,烷基或羧基烷基,R 7和R 8各自为氢,卤素,烷基,烯基,芳基,羧基烷基,羧基或腈。
    • 4. 发明授权
    • ABS molding materials having a bimodal rubber particle size distribution
    • 具有双峰橡胶粒度分布的ABS成型材料
    • US5434218A
    • 1995-07-18
    • US225928
    • 1994-04-11
    • Ehrenfried BaumgartnerJuergen HofmannRudolf H. JungRainer MoorsHansjoerg Schaech
    • Ehrenfried BaumgartnerJuergen HofmannRudolf H. JungRainer MoorsHansjoerg Schaech
    • C08L25/12C08L55/02
    • C08L25/12C08L55/02C08L2205/02
    • Rubber-modified, impact-resistant molding materials contain, based on the sum of A, B1 and B2,A: from 70 to 98% by weight of a polymer matrix A formed by free radical polymerization of a mixture of from 60 to 90% by weight of styrene and from 10 to 40% by weight of acrylonitrile,B1: from 1 to 29% by weight of a particulate, first graft copolymer B1 which is distributed in the matrix A and consists of a grafting base of polybutadiene and grafts of a copolymer of styrene and acrylonitrile having a mean particle size of about 100-500 nm, andB2: from 1 to 29% by weight of a particulate, second graft copolymer B2 distributed in the matrix A and consisting of a grafting base of polybutadiene and grafts of a copolymer of styrene and acrylonitrile having a mean particle size of from 600 to 10,000 nm, as obtained if both graft copolymers have been prepared by solution and/or mass polymerization and have been incorporated in the polymer matrix in a conventional manner.
    • 橡胶改性耐冲击成型材料基于A,B1和B2的总和含有A:70至98重量%的通过60至90重量%的混合物的自由基聚合形成的聚合物基质A, 的苯乙烯和10至40重量%的丙烯腈,B1:1至29重量%的分散在基体A中的颗粒状第一接枝共聚物B1,其由聚丁二烯的接枝碱和 平均粒度为约100-500nm的苯乙烯和丙烯腈的共聚物,以及B2:1至29重量%的分散在基体A中的颗粒状第二接枝共聚物B2,其由聚丁二烯的接枝碱和 如果两种接枝共聚物均通过溶液和/或大量聚合制备并且以常规方式掺入到聚合物基质中,则平均粒径为600至10,000nm的苯乙烯和丙烯腈共聚物的接枝。
    • 5. 发明授权
    • Preparation of branched block copolymers
    • US4418180A
    • 1983-11-29
    • US296849
    • 1981-08-27
    • Gerhard HeinzBurghard SchmittIngo H. DornHermann GausepohlKarl GerberdingRudolf H. JungHans MittnachtJurgen PohrtPaul Witimer
    • Gerhard HeinzBurghard SchmittIngo H. DornHermann GausepohlKarl GerberdingRudolf H. JungHans MittnachtJurgen PohrtPaul Witimer
    • C08F297/04
    • C08F297/044
    • A process for the preparation of branched block copolymers of from 60 to 95% by weight of a monovinyl-aromatic monomer and from 40 to 5% by weight of a conjugated diene by polymerizing the monomers in an inert solvent in the presence of a monolithium-hydrocarbon as the initiator, wherein, in a first process stage (a), from 50 to 80, or where necessary at most 90, % by weight of the total amount of monovinyl-aromatic compound are polymerized to virtually complete conversion in the presence of a relatively small amount of the monolithium-hydrocarbon. This stage is carried out by starting with from 30 to 70% by weight of the vinyl-aromatic monomer and adding from 70 to 30% by weight in the feed, during the polymerization, in such a way that the polymerization temperature, which at the start of the polymerization is from 30.degree. to 40.degree. C., is kept at from 45.degree. to 70.degree. C., with use of reflux cooling. After all the monomer feed has been added, the reaction temperature is lowered to 30.degree.-40.degree. C. by evaporative cooling. In a second process stage (b), an additional amount of initiator is added to the reaction solution, after which from 1 to 30% by weight of the total amount of monovinyl-aromatic monomer can be added, the sum of the amounts of monovinyl-aromatic monomer added in the first and second process stages being at most 90% by weight of the total amount of monovinyl-aromatic monomer. The monovinyl-aromatic monomer added in the second process stage is polymerized to virtually complete conversion, employing the temperature profile described for stage (a). In process stage (c), the remainder of the monovinyl-aromatic monomer and all of the conjugated diene are added, at least predominantly in the form of a mixture, and polymerized so that the reaction temperature does not rise above 90.degree.-110.degree. C. Finally, after virtually complete conversion of the monomers, and preferably without prior cooling, a suitable liquid polyfunctional coupling agent is run in undiluted and the mixture of the linear block copolymers obtained, which still contain active terminal lithium-carbon bonds, is coupled, with stirring, to form branched block copolymers. The products prepared according to the invention are used for injection molding.
    • 6. 发明授权
    • Preparation of ABS molding materials
    • ABS成型材料的制备
    • US5387650A
    • 1995-02-07
    • US179822
    • 1994-01-11
    • Ehrenfried BaumgartnerJuergen HofmannRudolf H. JungRainer MoorsHansjoerg Schaech
    • Ehrenfried BaumgartnerJuergen HofmannRudolf H. JungRainer MoorsHansjoerg Schaech
    • C08F279/02C08F2/02C08F2/04C08F2/06C08F4/32C08F279/00C08F279/04C08F2/38
    • C08F279/04
    • A process for the continuous preparation of high-impact polystyrene-acrylonitrile (ABS) by free radical-initiated polymerization of a mixture of from 60 to 90% by weight of at least one vinylaromatic monomer and from 10 to 40% by weight of least one further ethylenically unsaturated monomer, in the presence of from 5 to 30% by weight, based on the sum of the monomers, of polybutadiene having a solution viscosity (5% strength by weight in styrene at 25.degree. C.) from 25 to 95 mPa.s and in the presence or absence of a solvent, in at least three consecutive reactors operated essentially without back-mixing, at from 50.degree. to 170.degree. C., phase inversion taking place in one of the reactors, involves carrying out the polymerization as far as phase inversion at 90.degree. C. or below and initiating the polymerization by free radicals from the decomposition of tert-butyl peresters whose half life period at 90.degree. C. is not more than 20 minutes, the polybutadiene content, based on the total reaction mixture, being at least 10% by weight and at most 25% of the total amount of chain-transfer agent (regulator) required being added up to the time of phase inversion and the remainder being added thereafter.
    • 通过60至90重量%的至少一种乙烯基芳族单体和10至40重量%的至少一种乙烯基芳族单体的混合物的自由基引发聚合来连续制备高抗冲聚苯乙烯 - 丙烯腈(ABS)的方法 在5至30重量%的存在下,基于单体的总和,具有25至95mPa的溶液粘度(苯乙烯在25℃下为5重量%重量)的聚丁二烯存在下进一步的烯键式不饱和单体 并且在存在或不存在溶剂的情况下,在至少三个连续的反应器中基本上不进行反混操作,在50℃至170℃下,在一个反应​​器中进行相转化,包括进行聚合 只要在90℃以下的相转化,并且通过自由基从90℃的半衰期不超过20分钟的叔丁基过氧化物的分解开始聚合,聚丁二烯含量基于 总反应 混合物的至少10重量%和至多25重量%的链转移剂(调节剂)的总量相加,直至相转化时间为止,然后加入余量。
    • 7. 发明授权
    • Preparation of ABS molding materials
    • ABS成型材料的制备
    • US5250611A
    • 1993-10-05
    • US857135
    • 1992-03-25
    • Ehrenfried BaumgartnerHermann GausepohlRudolf H. Jung
    • Ehrenfried BaumgartnerHermann GausepohlRudolf H. Jung
    • C08F2/06C08F279/04
    • C08F279/04
    • Impact-resistant polystyrene acrylonitrile (ABS) is prepared by free radical polymernation of monomeric styrene and acrylonitrile or equivalents thereof in the presence of preformed, dissolved polbutadiene as a grafting base, the solvents used being in particular ethylbenzene and, at least from time to time, the monomers, and phase inversion taking place when the process has progressed to a certain point, in two or more reaction zones, by a continuous process in which the first reaction zone is present at least in duplicate and is in the form of a stirred kettle in each case, so that one stirred kettle is operated batchwise and alternately with the other in such a way that the reaction mixture is polymerized until phase inversion is complete or the initiator has been consumed, and the particular kettle content is then fed continuously to a second reaction zone in the form of a tube reactor.
    • 耐冲击聚苯乙烯丙烯腈(ABS)通过在预成型的溶解的聚丁二烯作为接枝碱的存在下,通过单体苯乙烯和丙烯腈或其等同物的自由基聚合制备,所用的溶剂特别是乙苯,并且至少不时地 ,单体和相转化发生在当两个或多个反应区中的过程已经进行到某一点时,通过连续方法发生,其中第一反应区至少以一式两份存在并且呈搅拌形式 在每种情况下,使一个搅拌釜分批操作,另一个搅拌釜以这样一种方式进行操作,使得反应混合物聚合直至相转化完成或引发剂已被消耗,然后将特定的釜内容物连续供给至 呈管式反应器形式的第二反应区。