Increased throughput in the manufacture of anionic polymers by reduction in polymers by reduction in polymer cement viscosity through the addition of metal alkyls
    23.
    发明授权
    Increased throughput in the manufacture of anionic polymers by reduction in polymers by reduction in polymer cement viscosity through the addition of metal alkyls 有权
    通过通过添加金属烷基酯降低聚合物粘合剂粘度来降低聚合物,从而提高阴离子聚合物的制造量

    公开(公告)号:US06492469B2

    公开(公告)日:2002-12-10

    申请号:US10106265

    申请日:2002-03-26

    IPC分类号: C08F842

    摘要: The present invention is an improvement upon the known method of anionically polymerizing monomers by contacting the monomers with an anionic polymerization initiator which is an organo-substituted alkali metal compound. The improvement comprises decreasing the viscosity of the polymer cement by adding at least 0.01 equivalent of a metal alkyl compound per equivalent of alkali metal initiator if the metal alkyl is added before or at the beginning of polymerization. If the metal alkyl is added during the polymerization or after but before the living polymer is terminated, then at least 0.01 equivalent of the metal alkyl compound per equivalent of living polymer chain ends is should be used. The alkyl groups of the metal alkyl are chosen such that they do not exchange with the organo substituents of the alkali metal, which can be the living polymer chain ends or the organo substituents of the initiator. To avoid this undesired exchange reaction, the alkyl groups of the metal alkyl compound are selected to be more basic and/or less bulky or both than the organo substituents of the alkali metal compound.

    摘要翻译: 本发明是通过使单体与作为有机取代的碱金属化合物的阴离子聚合引发剂接触而使已知的阴离子聚合单体的方法的改进。 改进之处在于,如果在聚合开始之前或开始时加入金属烷基,则每当量的碱金属引发剂加入至少0.01当量的金属烷基化合物来降低聚合物粘合剂的粘度。 如果在聚合期间或在活性聚合物终止之前加入金属烷基,则应使用每当量活性聚合物链末端至少0.01当量的金属烷基化合物。 选择金属烷基的烷基使得它们不与碱金属的有机取代基交换,碱金属可以是活性聚合物链末端或引发剂的有机取代基。 为了避免这种不希望的交换反应,金属烷基化合物的烷基被选择为比碱金属化合物的有机取代基更碱性和/或更小体积或两者。

    Increased throughput in the manufacture of block copolymers by reduction in polymer cement viscosity through the addition of polar solvents
    24.
    发明授权
    Increased throughput in the manufacture of block copolymers by reduction in polymer cement viscosity through the addition of polar solvents 失效
    通过添加极性溶剂降低聚合物粘合剂粘度,增加了嵌段共聚物制造中的生产量

    公开(公告)号:US06187873B1

    公开(公告)日:2001-02-13

    申请号:US09130248

    申请日:1998-08-06

    IPC分类号: C08F804

    CPC分类号: C08F6/02

    摘要: This invention is an improvement upon the current process for the production of block copolymers, especially hydrogenated block copolymers, of conjugated dienes and/or vinyl aromatic hydrocarbons which comprises anionically polymerizing the monomers in an inert hydrocarbon solvent in the presence of an alkali metal initiator whereby a polymer cement is produced and then contacting the cement with hydrogen under hydrogenation conditions in the presence of a hydrogenation catalyst. This invention and the improvement to the foregoing process comprises reducing the viscosity of the polymer cement by adding to it, preferably prior to hydrogenation (if the polymer is to be hydrogenated), from 2 to 50 % wt of a polar compound. The polar compound must be a poorer solvent for the block copolymer than is the inert hydrocarbon solvent. Preferred polar compounds include diethyl ether, tetrahydrofuran, diethoxyethane, monoglyme, diglyme, diethoxypropane, dioxane ortho-dimethoxybenzene, and the like.

    摘要翻译: 本发明是对现有的制备共轭二烯和/或乙烯基芳族烃的嵌段共聚物,特别是氢化嵌段共聚物的方法的改进,其包括在惰性烃溶剂中在碱金属引发剂的存在下将单体阴离子聚合, 生产聚合物水泥,然后在氢化催化剂存在下,在氢化条件下使水泥与氢气接触。 本发明和对上述方法的改进包括通过加入聚合物粘合剂,优选在氢化之前(如果聚合物被氢化),从2-50%wt的极性化合物降低聚合物粘合剂的粘度。 与惰性烃溶剂相比,极性化合物必须是较差的嵌段共聚物溶剂。 优选的极性化合物包括乙醚,四氢呋喃,二乙氧基乙烷,单甘醇二甲醚,二甘醇二甲醚,二乙氧基丙烷,二恶烷邻二甲氧基苯等。

    Sulfonated block copolymers, method for making same, and various uses for such block copolymers
    27.
    发明授权
    Sulfonated block copolymers, method for making same, and various uses for such block copolymers 有权
    磺化嵌段共聚物,其制备方法以及这种嵌段共聚物的各种用途

    公开(公告)号:US07737224B2

    公开(公告)日:2010-06-15

    申请号:US11458856

    申请日:2006-07-20

    IPC分类号: C08F8/34

    摘要: The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to sulfonation and each B block is a polymer block susceptible to sulfonation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. Preferably, each A block comprising one or more segments selected from polymerized (i) para-substituted styrene monomers, (ii) ethylene, (iii) alpha olefins of 3 to 18 carbon atoms; (iv) hydrogenated 1,3-cyclodiene monomers, (v) hydrogenated monomers of conjugated dienes having a vinyl content less than 35 mol percent prior to hydrogenation, (vi) acrylic esters, (vii) methacrylic esters, and (viii) mixtures thereof; and each B block comprising segments of one or more polymerized vinyl aromatic monomers selected from (i) unsubstituted styrene monomers, (ii) ortho-substituted styrene monomers, (iii) meta-substituted styrene monomers, (iv) alpha-methylstyrene, (v) 1,1-diphenylethylene, (vi) 1,2-diphenylethylene and (vii) mixtures thereof. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.

    摘要翻译: 本发明是一种固体嵌段共聚物,其包含至少两个聚合物端嵌段A和至少一个聚合物内部嵌段B,其中每个A嵌段是耐磺化的聚合物嵌段,并且每个B嵌段是易于磺化的聚合物嵌段,并且其中 所述A和B嵌段不含任何显着水平的烯属不饱和度。 优选地,每个A嵌段包含一个或多个选自聚合的(i)对位取代的苯乙烯单体,(ii)乙烯,(iii)3至18个碳原子的α-烯烃; (iv)氢化1,3-环二烯单体,(v)在氢化之前乙烯基含量低于35摩尔%的共轭二烯的氢化单体,(vi)丙烯酸酯,(vii)甲基丙烯酸酯和(viii)其混合物 ; 并且每个B嵌段包含一个或多个聚合的乙烯基芳族单体的链段,其选自(i)未取代的苯乙烯单体,(ii)邻位取代的苯乙烯单体,(iii)间位取代的苯乙烯单体,(iv)α-甲基苯乙烯,(v )1,1-二苯基乙烯,(vi)1,2-二苯基乙烯和(vii)它们的混合物。 还要求的是制备这种嵌段共聚物的方法,以及这些嵌段共聚物的各种最终用途和应用。