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    • 11. 发明申请
    • Preparation method of small particle sized polybutadiene latex used for the production of ABS
    • 用于生产ABS的小粒径聚丁二烯胶乳的制备方法
    • US20090076205A1
    • 2009-03-19
    • US11665134
    • 2005-10-09
    • Liben HuangZhiqiang WanYizhang LiJian ZhouXingcai JiangShufeng WangChengbao LiYuliang LouYan Liu
    • Liben HuangZhiqiang WanYizhang LiJian ZhouXingcai JiangShufeng WangChengbao LiYuliang LouYan Liu
    • C08K5/098
    • C08F36/06C08F2/38C08F2/24
    • A preparation method of small particle-sized polybutadiene latex used for the production of ABS is disclosed, which includes putting components comprising 34.00-45.00% by weight of the butadiene, 0-6.0% by weight of the second monomer, 52.11-63.13% by weight of the desalinized water, 0.12-0.22% by weight of the mercaptan(TDM), 0.80-2.60% by weight of the emulsifiers composed of potassium abietate and potassium oleate, into the same polymerization reactor, then heating the mixture of the components and stirring the same at a temperature range of 60-75° C. The reaction lasts for 9-12 hours and the conversion is higher than 97%. The method has the advantages such as higher conversion, shorter reaction period and lower latex viscosity. During the first stage of the reaction, more heat is released by increasing the reaction rate. When the conversion reaches 40-80%, the heat release rate of intermediate stage is depressed by decreasing the reaction temperature. When the conversion is higher than 80%, the reaction temperature reaches the highest. Thus, severe heat release is avoided. Moreover, the butadiene polymerization can be controlled steadily and the reaction period is shortened.
    • 公开了一种用于生产ABS的小粒径聚丁二烯胶乳的制备方法,其包括将包含34.00-45.00重量%的丁二烯,0-6.0重量%的第二单体,52.11-63.13%的组分 脱盐水的重量,硫醇(TDM)的0.12-0.22重量%,由松油酸钾和油酸钾组成的乳化剂的0.80-2.60重量%,加入到相同的聚合反应器中,然后加热组分的混合物, 在60-75℃的温度范围内搅拌该反应。反应持续9-12小时,转化率高于97%。 该方法具有转化率高,反应时间短,胶乳粘度低等优点。 在反应的第一阶段,通过提高反应速率释放更多的热量。 当转化率达到40-80%时,通过降低反应温度来抑制中间阶段的放热速率。 当转化率高于80%时,反应温度达到最高。 因此,避免了严重的放热。 此外,可以稳定地控制丁二烯聚合,缩短反应时间。
    • 13. 发明授权
    • Fluid having recyclable viscosity
    • 流体具有可回收粘度
    • US07290615B2
    • 2007-11-06
    • US10943577
    • 2004-09-17
    • Yenny ChristantiDiankui FuJian Zhou
    • Yenny ChristantiDiankui FuJian Zhou
    • E21B37/00
    • C09K8/52C09K2208/30
    • Compositions are given that have high viscosities at one pH range and low viscosities at another pH range. Methods are given for using such compositions in oilfield treatments. In particular CT wellbore cleanout compositions and methods are given in which a viscous fluid is injected into a wellbore; the fluid entrains particles and carries them to the surface; the viscosity of the fluid is reduced by reducing or increasing the pH; the particles settle from the fluid; the viscosity of the fluid is increased by increasing or reducing the pH; and the fluid is re-injected into the wellbore. Suitable surfactants are anionic surfactants, or mixtures of surfactants containing anionic surfactants, that aggregate into three-dimensional structures that substantially increase the viscosity at high pH but not at low pH. Other suitable surfactants are cationic surfactants with co-surfactants that aggregate below a certain pH but not above.
    • 给出了在一个pH范围内具有高粘度并在另一pH范围内具有低粘度的组合物。 给出了在油田处理中使用这些组合物的方法。 特别是给出了将其中的粘性流体注入到井眼中的CT井眼清洁组合物和方法; 流体夹带颗粒并将其携带到表面; 通过降低或增加pH降低流体的粘度; 颗粒从液体中沉淀出来; 通过增加或降低pH来增加流体的粘度; 并将流体再次注入井眼。 合适的表面活性剂是阴离子表面活性剂或含有阴离子表面活性剂的表面活性剂的混合物,其聚集成三维结构,其在高pH但不在低pH下显着增加粘度。 其它合适的表面活性剂是具有共表面活性剂的阳离子表面活性剂,其聚集低于一定pH但不高于。
    • 18. 发明授权
    • Papillomavirus vaccine
    • 乳头瘤病毒疫苗
    • US07169585B2
    • 2007-01-30
    • US10732345
    • 2003-12-11
    • Ian FrazerJian Zhou
    • Ian FrazerJian Zhou
    • C12N15/64C12N15/37
    • C07K14/005A61K39/00A61K2039/5258C12N7/00C12N2710/20022C12N2710/20023C12N2710/20034C12N2710/20043C12Q1/701Y10S977/802
    • A method of providing papillomavirus like particles which may be used for diagnostic purposes or for incorporation in a vaccine for use in relation to infections causd by papillomavirus. The method includes an initial step of constructing one or more recombinant DNA molecules which each encode papillomavirus L1 protein or a combination of papillomavirus L1 protein and papillomavirus L2 protein followed by a further step of transfecting a suitable host cell with one or more of the recombinant DNA molecules so that virus like particles (VLPs) are produced within the cell after expression of the L1 or combination of L1 and L2 proteins. The VLPs are also claimed per se as well as vaccines incorporating the VLPs.
    • 提供乳头瘤病毒样颗粒的方法,其可用于诊断目的或用于结合用于与由乳头瘤病毒引起的感染有关的疫苗中。 该方法包括构建一种或多种重组DNA分子的初始步骤,每个重组DNA分子编码乳头瘤病毒L1蛋白或乳头瘤病毒L1蛋白和乳头瘤病毒L2蛋白的组合,接着进一步用一种或多种重组DNA转染合适的宿主细胞 分子,使得在表达L1或L1和L2蛋白的组合之后,在细胞内产生病毒样颗粒(VLP)。 本身还要求VLP以及结合VLP的疫苗。