-
1.发明授权Process for preparing copolymers of acrylic acid or methacrylic acid and acrylic and methacrylic acid esters 失效制备丙烯酸或甲基丙烯酸和丙烯酸和甲基丙烯酸酯的共聚物的方法
公开(公告)号：US4085264A
公开(公告)日：1978-04-18
申请号：US784569
申请日：1977-04-04
申请人： Karl Seib , Wolfgang Schwarz , Hermann Gausepohl
发明人： Karl Seib , Wolfgang Schwarz , Hermann Gausepohl
IPC分类号： C08F220/00 , A61K8/00 , A61K8/36 , A61K8/37 , A61K8/81 , A61Q5/06 , C08F2/06 , C08F220/04 , C08F220/10 , C08F220/14 , C08C19/00 , C08C19/22 , C08F20/04
CPC分类号： A61Q5/06 , A61K8/8152 , C08F220/14 , Y10S526/936
摘要： A process for the manufacture of copolymers by copolymerizing acrylic acid or methacrylic acid with esters of acrylic acid and methacrylic acid in the presence of polymerization initiators, in which methyl methacrylate, acrylic acid and/or methacrylic acid and a higher alkyl acrylate are copolymerized.
摘要翻译： 在聚合引发剂存在下，丙烯酸或甲基丙烯酸与丙烯酸和甲基丙烯酸的酯共聚合制备共聚物的方法，其中甲基丙烯酸甲酯，丙烯酸和/或甲基丙烯酸和高级烷基丙烯酸酯共聚。
-
公开(公告)号：US4053696A
公开(公告)日：1977-10-11
申请号：US632653
申请日：1975-11-17
申请人： Karl Herrle , Hermann Gausepohl , Wolfgang Schwarz
发明人： Karl Herrle , Hermann Gausepohl , Wolfgang Schwarz
CPC分类号： C08F26/10
摘要： A process for the continuous manufacture of vinylpyrrolidone polymers of low K values, wherein vinylpyrrolidone, with or without comonomers copolymerizable therewith, is polymerized in organic solvents at elevated temperatures and superatmospheric pressures in the presence of a source of free radicals.
-
公开(公告)号：US06410654B1
公开(公告)日：2002-06-25
申请号：US09719818
申请日：2000-12-18
IPC分类号： C08F446
CPC分类号： C08F287/00 , C08F279/02 , C08F212/08
摘要： An anionically polymerized impact-modified polystyrene has a yield stress of at least 24 MPa, measured at 23° C. to DIN 53455 and a hole impact strength of at least 11 kJ/m2, measured at 23° C. to DIN 53753, measured in each case on a specimen produced to ISO 3167. A preparation process is described.
摘要翻译： 阴离子聚合的冲击改性聚苯乙烯具有至少24MPa的屈服应力，在23℃下根据DIN 53455测量，并且在23℃根据DIN 53753测量的孔冲击强度为至少11kJ / m 2，测量 在每种情况下都是根据ISO 3167生产的样品。描述了制备过程。
-
公开(公告)号：US06399703B1
公开(公告)日：2002-06-04
申请号：US09582879
申请日：2000-07-06
IPC分类号： C08F29700
CPC分类号： C08F279/02 , C08F287/00 , C08F212/08
摘要： A process for preparing impact-modified styrene polymers (HIPS) omprises anionic polymerization of styrene in the presence of a rubber in one or more polymerization reactors in succession. The rubber is prepared in solution in an immediately upstream process. The heat of polymerization is utilized to remove the solvent for the rubber, this solvent having a boiling point lower than those of styrene and ethylbenzene, from at least one of the polymerization reactors via distillation with distillative cooling, and the solvent is reintroduced into the process of rubber preparation.
摘要翻译： 制备冲击改性苯乙烯聚合物（HIPS）的方法在连续的一个或多个聚合反应器中在橡胶存在下进行苯乙烯的阴离子聚合。 橡胶在紧密上游过程中在溶液中制备。 使用聚合热来除去溶剂，该溶剂的沸点低于苯乙烯和乙苯的溶剂，来自至少一个聚合反应器通过蒸馏蒸馏冷却，并将溶剂重新引入该方法 的橡胶制剂。
-
5.发明授权Method for the production of block copolymers by retarded anionic polymerization 失效通过延迟阴离子聚合制备嵌段共聚物的方法公开(公告)号：US06353056B1
公开(公告)日：2002-03-05
申请号：US09622175
申请日：2000-08-14
IPC分类号： C08F29704
CPC分类号： C08F297/04
摘要： In a process for the preparation of block copolymers from vinylaromatic monomers and dienes, the monomers are polymerized in the presence of at least one alkali metal organyl or alkali metal alkoxide and at least one magnesium, aluminum or zinc organyl.
摘要翻译： 在由乙烯基芳族单体和二烯制备嵌段共聚物的方法中，单体在至少一种碱金属有机碱金属醇盐和至少一种镁，铝或锌有机基团存在下聚合。
-
6.发明授权Preparation of rubber-modified molding materials from reaction mixtures containing derivatives of acrylamides or of methacrylamides 失效由含有丙烯酰胺或甲基丙烯酰胺衍生物的反应混合物制备橡胶改性的成型材料
公开(公告)号：US5886105A
公开(公告)日：1999-03-23
申请号：US836318
申请日：1997-05-12
IPC分类号： C08L15/00 , C08F2/18 , C08F220/12 , C08F220/58 , C08F265/04 , C08L51/00 , C08L51/06 , C08L33/00 , C08L33/26
CPC分类号： C08F265/04 , C08L51/06
摘要： In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) ##STR1## where R.sup.1 is hydrogen or methyl and R.sup.2 is alkyl of 1 to 32 carbon atoms, a compound (b) of the formula (II) ##STR2## where R.sup.3 is hydrogen or methyl, R.sup.4 is hydrogen or alkyl of 1 to 8 carbon atoms, R.sup.5 is hydrogen or methyl and R.sup.6 is hydrogen or alkyl of 1 to 10 carbon atoms, preferably hydrogen, and, if required, a first monomer (c) or a plurality thereof is polymerized with free radicals to give a rubber (B),in a second stage, the resulting rubber (B) is mixed with a second monomer (d) or with a plurality thereof, preferably dissolved or swollen therein, to form a second mixture (C), andin a third stage, the second mixture (C) formed by mixing is polymerized with free radicals to give the rubber-modified molding material (D).
摘要翻译： PCT No.PCT / EP95 / 04477 371日期1997年5月12日 102（e）日期1997年5月12日PCT提交1995年11月14日PCT公布。 出版物WO96 / 15168 日期1996年5月23日在橡胶改性成型材料的制备中，在第一阶段中，第一混合物（A）含有至少一种式（I）的丙烯酸烷基酯或甲基丙烯酸烷基酯（a）（I）其中 R1是氢或甲基，R2是1至32个碳原子的烷基，式（II）的化合物（b）R4是氢或1至8个碳原子的烷基，R5是氢或甲基，R6是氢或烷基 1至10个碳原子，优选为氢，如果需要，第一单体（c）或其多个与自由基聚合以得到橡胶（B），在第二阶段中，所得橡胶（B）为 与第二单体（d）或其多个混合，优选在其中溶解或溶胀以形成第二混合物（C），并且在第三阶段中，通过混合形成的第二混合物（C）与自由基聚合， 得到橡胶改性成型材料（D）。
-
公开(公告)号：US5587423A
公开(公告)日：1996-12-24
申请号：US135406
申请日：1993-10-13
IPC分类号： C08F297/04
CPC分类号： C08F297/04
摘要： In a process for preparing block copolymers of styrene or its equivalents on the one hand and of butadiene or its equivalents on the other hand by sequential anionic polymerization, in which a first monomer and the organometallic compound serving as initiator are first of all combined to form a reaction mixture and the reaction is continued until at least part of the first monomer has been consumed, and then at least one further monomer is added and is in each case partially or completely reacted, the polymerization is carried out continuously in a conventional manner in a tubular reactor, the reaction of in each case one monomer being carried out in each case in one reactor section and at least two reactor sections being separated by a mixing stretch.
摘要翻译： 在一方面通过连续阴离子聚合制备苯乙烯或其等同物的丁二烯或其等同物的嵌段共聚物的方法，其中第一单体和用作引发剂的有机金属化合物首先组合形成 反应混合物并继续反应直到至少部分第一单体已被消耗，然后加入至少一种其它单体，并且在每种情况下部分或完全反应，聚合以常规方式在 管状反应器，在每种情况下的反应中，一种单体在每种情况下在一个反应器部分中进行，并且至少两个反应器部分通过混合拉伸分离。
-
公开(公告)号：US5391655A
公开(公告)日：1995-02-21
申请号：US136931
申请日：1993-10-19
CPC分类号： B01J19/242 , C08F12/04 , B01J2219/00103
摘要： A process is described for preparing styrene polymers by continuous anionic polymerization, the monomer or monomers and the organometallic compound serving as starter (initiator) being added in solution to a tubular reactor operating essentially without backmixing and being left in the reactor until the monomer has been consumed, wherein the polymerization is carried out in at least two successive tubular reactor sections operating in each case essentially adiabatically, with in each case at least one heat exchanger arranged between the sections. If desired a proportion of the starter and/or of the monomer is added to at least one reactor connected downstream of the first reactor.
摘要翻译： 描述了通过连续阴离子聚合制备苯乙烯聚合物的方法，将单体或单体和用作起始物的有机金属化合物（引发剂）加入到基本上不进行回混的管式反应器中，并保留在反应器中，直到单体已经 消耗，其中聚合在至少两个连续的管式反应器段中进行，每个反应器段在每种情况下基本上绝热地进行，在每种情况下，至少一个热交换器布置在两部分之间。 如果需要，将起始物和/或单体的一部分加入到连接在第一反应器下游的至少一个反应器中。
-
公开(公告)号：US4696996A
公开(公告)日：1987-09-29
申请号：US797884
申请日：1985-11-14
申请人： Hermann Brandt , Hermann Fischer , Hermann Dreher , Eduard Heil , Juergen Hambrecht , Herbert Naarmann , Adolf Echte , Hermann Gausepohl , Peter Siebel , Johann Swoboda , Gerd Schwoebel , Albert Nikles
发明人： Hermann Brandt , Hermann Fischer , Hermann Dreher , Eduard Heil , Juergen Hambrecht , Herbert Naarmann , Adolf Echte , Hermann Gausepohl , Peter Siebel , Johann Swoboda , Gerd Schwoebel , Albert Nikles
CPC分类号： C08G65/44 , B01J19/1862 , B01J19/1881 , B01J2219/00094 , B01J2219/00103 , B01J2219/0011
摘要： Polyphenylene ethers are prepared from monohydric phenols, which possess alkyl substituents in the two ortho-positions and, if desired, in the meta-position, but not in the para-position, by an oxidative coupling reaction with oxygen at from 15.degree. to 50.degree. C. and under from 1 to 10 bar in the presence of a catalyst complex, of a solvent and, if required, of an activator, by a method in which the conversion of the phenols is carried out in two more reaction zones, in which some or all of the solvent, the catalyst complex and the phenols and, where relevant, the activator is initially taken and is circulated by means of a conveying unit, and about 60-100% of the stoichiometric amount of oxygen required for the oxidative coupling is introduced into the first reaction zone and from 0 to about 40% of the said stoichiometric amount is introduced into the second reaction zone.
摘要翻译： 聚苯醚由单羟基苯酚制得，它们在两个邻位具有烷基取代基，如果需要，在间位，而不是在对位，通过与15至50的氧的氧化偶联反应， 在催化剂配合物存在下，在溶剂和如果需要的情况下，活化剂存在下，在1至10巴下，通过酚的转化在两个更多的反应区中进行，在 其中一些或全部溶剂，催化剂络合物和酚，并且在相关的情况下，活化剂最初被摄取并通过输送单元循环，并且约60-100％的化学计量量的氧化所需的氧 将偶联引入第一反应区，并将0至约40％的所述化学计量量引入第二反应区。
-
10.发明授权Manufacture of heat-stable brominated oligomers of monovinyl-aromatic compounds 失效制备单乙烯基芳族化合物的热稳定溴化低聚物
公开(公告)号：US4074032A
公开(公告)日：1978-02-14
申请号：US705278
申请日：1976-07-14
摘要： A process for the manufacture of heat-stable, brominated oligostyrenes by brominating selectively hydrogenated oligostyrenes in halogenated solvents in the presence of Lewis acids at from -25.degree. to +20.degree. C. The brominated oligomers are highly heat-stable and can be processed, by themselves or as components of mixtures with other thermoplastics, to give various shaped articles.
摘要翻译： 在-25℃至+20℃的路易斯酸存在下，通过在卤代溶剂中溴化选择性氢化的低聚异丁烯来制造热稳定的溴化低聚物的方法。溴化低聚物是高度热稳定的， 自身或作为与其他热塑性塑料的混合物的组分，以产生各种成型制品。
-
-
-
-
-
-
-
-
-
搜索结果
67 条记录 (耗时 0.024 秒)
