公开(公告)号：US06852797B2

公开(公告)日：2005-02-08

申请号：US10257717

申请日：2001-04-24

申请人： Sabine Oepen ,  Michael Breulmann ,  Norbert Güntherberg ,  Klaus-Dieter Hungenberg ,  Norbert Niessner ,  Bernhard Czauderna ,  Wil Duijzings

发明人： Sabine Oepen ,  Michael Breulmann ,  Norbert Güntherberg ,  Klaus-Dieter Hungenberg ,  Norbert Niessner ,  Bernhard Czauderna ,  Wil Duijzings

IPC分类号： C08F2/22 ,  C08F2/32 ,  C08F236/06 ,  C08F279/02 ,  C08F279/04

CPC分类号： C08F279/02 ,  C08F236/06 ,  Y10S525/942 ,  C08F2/22

摘要： A polybutadiene latex is prepared by a process in which butadiene is polymerized by free radical emulsion polymerization in the presence of initiator and, if required, dispersants and further conventional assistants, the polymerization being carried out in the presence of reactive comonomers in such a way that the heat flow of 43 watt/kg solids content of the polymerization mixture is not exceeded. Owing to the presence of reactive comonomers, the reaction rate at the beginning of the reaction is increased, with the result that an overall flatter heat flow profile is obtained. A preferred reactive comonomer is styrene. Preferably, the process is carried out by a semi-batch procedure in which (a) in a first stage, a portion of butadiene and at least one portion of reactive comonomer in the form of an aqueous emulsion are initially taken with a thermal polymerization initiator and, if required, dispersants and further conventional assistants and the polymerization is initiated, (b) in a second stage, the remaining amount of butadiene and, if required, the remaining amount of reactive comonomer are added undiluted or in the form of an aqueous emulsion, if required with dispersants and, if required, further conventional assistants, as a feed.

摘要翻译： 聚丁二烯胶乳是通过一种方法制备的，其中丁二烯在引发剂存在下通过自由基乳液聚合聚合，如果需要的话，通过分散剂和其它常规助剂，聚合反应在反应性共聚单体的存在下进行，使得 不超过聚合混合物的43瓦特/千克固体含量的热流。 由于反应性共聚单体的存在，反应开始时的反应速率增加，结果得到整体平坦的热流分布。 优选的反应性共聚单体是苯乙烯。 优选地，该方法通过半间歇方法进行，其中（a）在第一阶段中，一部分丁二烯和至少一部分水性乳液形式的反应性共聚单体最初用热聚合引发剂 并且如果需要，分散剂和其它常规助剂并开始聚合，（b）在第二阶段中，剩余量的丁二烯和如果需要的话，反应性共聚单体的剩余量未稀释或以水性形式加入 乳液，如果需要与分散剂，并且如果需要，作为进料的其它常规助剂。

公开(公告)号：US06723774B2

公开(公告)日：2004-04-20

申请号：US10221080

申请日：2002-09-10

申请人： Norbert Güntherberg ,  Bernhard Czauderna ,  Michael Breulmann ,  Sabine Oepen ,  Wil Duijzings ,  Norbert Niessner

发明人： Norbert Güntherberg ,  Bernhard Czauderna ,  Michael Breulmann ,  Sabine Oepen ,  Wil Duijzings ,  Norbert Niessner

IPC分类号： C08F3600

CPC分类号： C08F36/04 ,  Y10S525/902 ,  C08F2/24

摘要： The invention relates to a method for producing caoutchouc particles (K) by means of emulsion polymerisation in the presence of an emulsifier and a polymerisation initiator. Said particles contain A) 80 to 100 wt. % of one or more conjugated diene monomers (A) in relation to (K) and B) 0 to 20 wt. % of one or more monoethylenically unsaturated comonomers (B) in relation to (K) in the polymerised form. The inventive method is characterised in that 1) a mixture (M1) containing water and an emulsifier is provided, 2) a mixture (M2) containing one or more monomers in the monomer or polymerised form selected from styrole, &agr;-methylstyrole, butadiene, n-butylacrylate, MMA and acrylnitrile and optionally comonomers is added, 3) polymerisation of the obtained mixture starts in the presence of a polymerisation initiator at temperature of 5 to 95° C., 4) a mixture (M3) containing 0 to 100 wt. % of the comonomers (B) in relation to (B) and 0 to 25 wt. % of the diene monomers (A) in relation to (A) is added, 5) a mixture (M4) containing the (remaining) diene monomers (A) and the (remaining) comonomers (B) is proportioned and polymerised and 6) polymerisation is terminated when there is conversion of more than 90 and less than 95% in relation to the sum of the monomers.

摘要翻译： 本发明涉及一种在乳化剂和聚合引发剂存在下，通过乳液聚合来生产酚醛树脂颗粒（K）的方法。 所述颗粒包含A）80至100重量％ 一个或多个共轭二烯单体（A）相对于（K）和B）的％为0-20重量％ ％的一种或多种单烯属不饱和共聚单体（B）相对于聚合形式的（K）。 本发明的方法的特征在于：1）提供含有水和乳化剂的混合物（M1），2）含有一种或多种选自苯乙烯，α-甲基苯甲醛，丁二烯的单体或聚合形式的单体的混合物（M2） 丙烯酸正丁酯，MMA和丙烯腈和任选的共聚单体; 3）所得混合物的聚合在聚合引发剂存在下开始，温度为5至95℃，4）含有0-100重量份的混合物 。 共聚单体（B）的相对于（B）和0-25重量％ 加入相对于（A）的二烯单体（A）的％，5）含有（剩余的）二烯单体（A）和（剩余的）共聚单体（B）的混合物（M4）成比例和聚合，和6） 当相对于单体的总和转化率大于90且小于95％时，聚合终止。

公开(公告)号：US06774167B1

公开(公告)日：2004-08-10

申请号：US10111469

申请日：2002-04-25

申请人： Sabine Oepen ,  Norbert Niessner ,  Michael Breulmann ,  Norbert Güntherberg ,  Wil Duijzings

发明人： Sabine Oepen ,  Norbert Niessner ,  Michael Breulmann ,  Norbert Güntherberg ,  Wil Duijzings

IPC分类号： C08K55415

CPC分类号： C08L55/02 ,  C08F279/04 ,  C08L51/04 ,  C08L2666/04 ,  C08L2666/02

摘要： Undesirable changes in shade brought about by low temperatures (Cold Stress Whitening) in impact-modified thermoplastic molding compositions F which comprise at least one elastomeric graft polymer A and at least one thermoplastic polymer B are reduced by adding from 10 to 200 ppm, based on the molding compositions F, of at least one polyorganosiloxane S to the impact-modified thermoplastic molding composition F.

摘要翻译： 在冲击改性的热塑性成型组合物F中，通过低温（冷应力增白）引起的不利影响的变化包括至少一种弹性体接枝聚合物A和至少一种热塑性聚合物B，通过加入10至200ppm，基于 至少一种聚有机硅氧烷S的成型组合物F与冲击改性热塑性模塑组合物F。

公开(公告)号：US06835775B2

公开(公告)日：2004-12-28

申请号：US10275012

申请日：2002-10-31

申请人： Michael Breulmann ,  Sabine Oepen ,  Norbert Niessner ,  Norbert Güntherberg ,  Wil Duijzings ,  Graham Edmund Mc Kee ,  Peter Rossmanith

发明人： Michael Breulmann ,  Sabine Oepen ,  Norbert Niessner ,  Norbert Güntherberg ,  Wil Duijzings ,  Graham Edmund Mc Kee ,  Peter Rossmanith

IPC分类号： C08F25500

CPC分类号： C08L25/12 ,  C08F265/04 ,  C08F279/02 ,  C08F279/04 ,  C08F291/02 ,  C08L51/04 ,  C08L55/02 ,  C08F2/22 ,  C08L2666/24 ,  C08L2666/02

摘要： The graft copolymer made from a1: from 10 to 90% by weight of a particulate graft base A1, made from a particulate emulsion polymer with a glass transition temperature below 0° C. made from a11: from 70 to 100% by weight of butadiene or of at least one C1-8-alkyl acrylate, or of mixtures of these, as component A11, a12: from 0 to 20% by weight of at least one polyfunctional crosslinking monomer, as component A12, a13: from 0 to 30% by weight of other copolymerizable monomers, as component A13, the total amount of these being 100% by weight, a2: from 10 to 90% by weight of a graft A2 made from the following monomers, the amounts being based on A2, a21: from 60 to 100% by weight of at least one vinylaromatic monomer, or of a (meth)acrylic ester or of mixtures of these, as component A21, and a22: from 0 to 40% by weight of at least one ethylenically unsaturated monomer, as component A22, has a median particle diameter of from 130 to 500 nm and has polymodal particle size distribution in which less than 40% by weight of the particles are present in any particle size range of width 50 nm.

摘要翻译： 由a1制得的接枝共聚物：10至90重量％的微粒接枝基质A1，其由玻璃化转变温度低于0℃的颗粒状乳液聚合物制成，由11：70至100重量％的丁二烯或 至少一种丙烯酸C 1-8 - 或它们的混合物，作为组分A11，a12：0-20重量％的至少一种多官能交联单体，作为组分A12，a13：0-30重量％ 的其它可共聚单体作为组分A13，其总量为100重量％，a2：10至90重量％的由以下单体制备的接枝A2，其量基于A2，a21：60 至100重量％的至少一种乙烯基芳族单体或（甲基）丙烯酸酯或它们的混合物作为组分A21和a22：0至40重量％的至少一种烯属不饱和单体作为组分A22 具有130-500nm的中值粒径，并且具有多模态粒度分布，其中le 超过40重量％的颗粒存在于宽度为50nm的任何粒度范围内。

公开(公告)号：US06812283B2

公开(公告)日：2004-11-02

申请号：US10333612

申请日：2003-01-22

申请人： Wil Duijzings ,  Sabine Oepen ,  Norbert Niessner ,  Michael Breulmann ,  Hardy Korb

发明人： Wil Duijzings ,  Sabine Oepen ,  Norbert Niessner ,  Michael Breulmann ,  Hardy Korb

IPC分类号： C08L3102

CPC分类号： C08C1/07

摘要： A process for the agglomeration of at least one rubber (A), dispersed in an aqueous phase, by the addition of a dispersion of at least one agglomerating polymer (B) in aqueous phase, in which the agglomerating polymer B used is one containing substantially no free acid groups and the agglomeration is carried out in the presence of at least one basic electrolyte.

摘要翻译： 通过在水相中加入至少一种附聚聚合物（B）的分散体，使分散在水相中的至少一种橡胶（A）凝聚的方法，其中使用的附聚聚合物B是基本上含有 不存在游离酸基团并且在至少一种碱性电解质的存在下进行附聚。