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    • 3. 发明授权
    • Method for producing polybutadiene latex with an optimized thermal current profile
    • 具有优化的热电流分布的聚丁二烯胶乳的生产方法
    • US06852797B2
    • 2005-02-08
    • US10257717
    • 2001-04-24
    • Sabine OepenMichael BreulmannNorbert GüntherbergKlaus-Dieter HungenbergNorbert NiessnerBernhard CzaudernaWil Duijzings
    • Sabine OepenMichael BreulmannNorbert GüntherbergKlaus-Dieter HungenbergNorbert NiessnerBernhard CzaudernaWil Duijzings
    • C08F2/22C08F2/32C08F236/06C08F279/02C08F279/04
    • C08F279/02C08F236/06Y10S525/942C08F2/22
    • 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.
    • 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。
    • 4. 发明授权
    • Method for producing caoutchouc particles
    • 橡胶颗粒的制备
    • US06723774B2
    • 2004-04-20
    • US10221080
    • 2002-09-10
    • Norbert GüntherbergBernhard CzaudernaMichael BreulmannSabine OepenWil DuijzingsNorbert Niessner
    • Norbert GüntherbergBernhard CzaudernaMichael BreulmannSabine OepenWil DuijzingsNorbert Niessner
    • C08F3600
    • C08F36/04Y10S525/902C08F2/24
    • 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.
    • 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。
    • 5. 发明授权
    • Stabilized thermoplastic molding materials
    • 稳定的热塑性成型材料
    • US06835776B2
    • 2004-12-28
    • US10296452
    • 2002-11-25
    • Norbert GüntherbergBernhard CzaudernaPeter Ittemann
    • Norbert GüntherbergBernhard CzaudernaPeter Ittemann
    • C08L2512
    • C08K5/13C08K5/005C08L25/12C08L55/02C08L71/02C08L2666/02C08L2666/24
    • Thermoplastic molding materials containing the following ingredients with regard to components A-F: A) 5-70 wt. % of at least one graft copolymer A) consisting of a rubber elastic base with a glass transition temperature below 0° and a grafted overlay made of a styrene compound and acrylonitrile or methacrylonitrile or mixture thereof in addition to, optionally, other monoethylenically unsaturated monomers, B) 29-90 wt. % of a hard copolymer made of at least one styrene compound, acrylonitrile or methacrylonitrile or mixtures thereof and, optionally, other monoethylenically unsaturated monomers, C) 0-5 wt. % of at least one three-block copolymer X-Y-X with a middle block Y propylenoxide units and terminal block X made of ethyleneoxide units, D) 0.01-5 wt. % of at least one butylated reaction product of cresol with dicyclopentadiene, E) 0.01-5 wt. % of at least one thiocarboxylic acid ester, F) 0.01-5 wt. % of at least one alkaline metal salt or alkaline earth metal salt of a C6-C20carboxylic acid, G) 0-30 wt. % in relation to constituents A)-G), of other usual additives. The moulding materials exhibit a db* -value, after exposure to the atmosphere, of less than +5,0 after 100 hours of exposure to light and the atmosphere according to ISO 4892/2, method A, black temperature 65° C. colour measurement according to CIE-Lab in accordance with DIN 6174 and DIN 5033.
    • 6. 发明授权
    • Preparation of thermoplastics
    • 热塑性塑料的制备
    • US5852113A
    • 1998-12-22
    • US620309
    • 1996-03-22
    • Norbert GuntherbergJurgen HofmannElmar MailahnHilmar OhligSven GrabowskiBernhard CzaudernaKlaus Bus
    • Norbert GuntherbergJurgen HofmannElmar MailahnHilmar OhligSven GrabowskiBernhard CzaudernaKlaus Bus
    • B29B7/48B29B7/58B29B7/88B29B13/06B29C47/76C08J3/20C08L9/00C08L21/00C08L25/04C08L27/06C08L33/04C08L33/12C08L51/00C08L51/04C08G63/48
    • B29C47/76B29B13/06C08L51/04B29C47/0011B29C47/0019B29C47/0023B29C47/003B29C47/762B29K2055/02B29K2096/02
    • Toughened thermoplastics are prepared by mixing a water-moist elastomer component A containing up to 60% by weight of residual water with a thermoplastic polymer B and further polymers C and additives D in an extruder with mechanical dewatering of the elastomer component A, by a process in which the components A, B, C and D are fed to a twin-screw extruder which has corotating screws and essentially comprises, in the transport direction, at least one metering section in which the elastomer component A is fed to the extruder by a metering means, at least one squeeze section which serves for dewatering the component A and contains at least one retarding element and in each case at least one associated dewatering orifice, at least one section in which the thermoplastic polymer B is introduced as a melt into the extruder, at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements, at least one devolatilization section which is provided with at least one devolatilization orifice and in which the residual water is removed as steam, and a discharge zone, the water emerging from the dewatering orifices being present partially or completely in the liquid phase, and the components C or D or mixtures thereof, together or separately from one another, being fed to one or more of the stated extruder sections, either together with the component A or B or mixtures thereof or separately from A and B.
    • 增韧的热塑性塑料通过将包含高达60重量%的残余水的水分润湿性组分A与热塑性聚合物B混合,并且在挤出机中将另外的聚合物C和添加剂D混合在一起,通过一种方法将该弹性体组分A机械脱水 其中将组分A,B,C和D进料到具有同向旋转螺杆的双螺杆挤出机中,并且在输送方向上基本上包括至少一个计量段,其中弹性体组分A通过 计量装置,至少一个挤压部分,其用于对部件A进行脱水并且包含至少一个延迟元件,并且在每种情况下包含至少一个相关联的脱水孔,至少一个部分,其中热塑性聚合物B作为熔体引入其中 挤出机,至少一个具有混合,捏合或其它塑化元件或这些元件的组合的部分,至少一个脱挥发段 与至少一个脱挥发孔一起使用,其中残留的水作为蒸汽除去,以及排出区,从脱水孔中排出的水部分或完全存在于液相中,以及组分C或D或其混合物, 一起或彼此分开地,被供给到一个或多个所述的挤出机部分,与组分A或B一起或其混合物或与A和B分开。
    • 7. 发明授权
    • Preparation of thermoplastics
    • 热塑性塑料的制备
    • US5910276A
    • 1999-06-08
    • US620310
    • 1996-03-22
    • Norbert GuntherbergJurgen HofmannHilmar OhligElmar MailahnKlaus BusBernhard CzaudernaSven Grabowski
    • Norbert GuntherbergJurgen HofmannHilmar OhligElmar MailahnKlaus BusBernhard CzaudernaSven Grabowski
    • B29B7/88B29B7/48B29B7/58B29C47/40B29C47/76C08G85/00C08J3/20C08J3/205C08L25/04C08L27/06C08L33/04C08L33/12C08L33/18C08L33/20C08L51/00C08L51/04C08L55/02C08L101/00
    • B29C47/767B29C47/40B29C47/6031B29C47/6056B29C47/62B29C47/64B29C47/76C08J3/205C08L51/04C08L55/02B29C47/0011B29C47/0019B29C47/0023B29C47/762
    • Toughened thermoplastics are prepared by mechanically dewatering a water-moist elastomer component A containing up to 60% by weight of residual water and mixing the resulting dewatered elastomer component A' with a thermoplastic polymer B in an extruder, by a process in which the elastomer component A is fed to a twin-screw extruder which has corotating, in each case double-flight, screws and essentially includes, in the transport direction,a metering section in which the elastomer component A is fed to the extruder by a metering means,at least one squeeze section which serves for dewatering and contains at least one retarding element and in each case at least one associated dewatering orifice,at least one section provided with a conveying screw or at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements,at least one section in which the thermoplastic polymer B is introduced as a melt into the extruder,at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements,at least one devolatilization section which is provided with at least one devolatilization orifice and in which the residual water is removed as steam, anda discharge zone,the water emerging from the dewatering orifices being present partially or completely in the liquid phase, and the extruder being operated at a screw speed of from 50 to 600 min.sup.-1 and average shear rates of from 20 to 240 s.sup.-1.
    • 通过机械脱水含有高达60重量%的残余水的水分弹性体组分A并将所得脱水的弹性体组分A'与热塑性聚合物B混合在挤出机中,通过以下方法制备增韧的热塑性塑料,其中弹性体组分 A被输送到双螺杆挤出机,双螺杆挤出机在每个情况下都具有旋转螺旋,并且在输送方向上基本上包括计量部分,其中弹性体组分A通过计量装置进料到挤出机, 至少一个挤压部分,其用于脱水并且包含至少一个延迟元件,并且在每种情况下包括至少一个相关联的脱水孔,设置有输送螺杆的至少一个部分或设置有混合,捏合或其它塑化元件的至少一个部分, 这些元件的组合,将热塑性聚合物B作为熔体引入挤出机中的至少一个部分,至少一个部分 n具有混合,捏合或其它塑化元件或这些元素的组合,至少一个脱挥发段,其设置有至少一个脱挥发分孔,残留水作为蒸汽除去,以及排出区,从 脱水孔部分或完全在液相中存在,挤出机以50至600分钟-1的螺杆速度和20至240s -1的平均剪切速率操作。