Process for making submicron stable latexes of block copolymers
    1.
    发明授权
    Process for making submicron stable latexes of block copolymers 失效
    制备嵌段共聚物的亚微米级稳定胶乳的方法

    公开(公告)号:US5336712A

    公开(公告)日:1994-08-09

    申请号:US35870

    申请日:1993-03-23

    摘要: This invention is a process for producing stable polymer emulsions and latexes with an average particle size of less than one micron. The polymers are block copolymers of conjugated dienes and vinyl aromatic hydrocarbons which may or may not contain polar functionality. The process comprises making a polymer cement of the polymer and a blend of a solvent for the polymer and a cosolvent(s), emulsifying the polymer cement by adding it to an aqueous phase containing at least one surfactant and removing the solvent, cosolvent and excess water.

    摘要翻译: 本发明是一种制备平均粒度小于1微米的稳定的聚合物乳液和胶乳的方法。 聚合物是共轭二烯和乙烯基芳烃的嵌段共聚物,其可以含有极性官能团,也可以不含极性官能团。 该方法包括制备聚合物的聚合物粘合剂和用于聚合物和共溶剂的溶剂的共混物,通过将聚合物粘合剂添加到含有至少一种表面活性剂的水相中并除去溶剂,助溶剂和过量 水。

    Process for making submicron stable latexes of hydrogenated block
copolymers
    2.
    发明授权
    Process for making submicron stable latexes of hydrogenated block copolymers 失效
    制备氢化嵌段共聚物的亚微米级稳定胶乳的方法

    公开(公告)号:US5688856A

    公开(公告)日:1997-11-18

    申请号:US775469

    申请日:1996-12-30

    摘要: This invention is a process for producing stable polymer emulsions and latexes with an average particle size of less than one micron. The polymers are hydrogenated block copolymers of conjugated dienes and vinyl aromatic hydrocarbons which may or may not contain polar functionality. The process comprises making a polymer cement of the polymer and a blend of a non-aromatic solvent for the vinyl aromatic hydrocarbon block which is immiscible with water and a non-aromatic cosolvent, emulsifying the polymer cement by adding it to an aqueous phase containing at least one surfactant and removing the solvent, cosolvent and excess water.

    摘要翻译: 本发明是一种制备平均粒度小于1微米的稳定的聚合物乳液和胶乳的方法。 聚合物是共轭二烯和乙烯基芳烃的氢化嵌段共聚物,其可以含有或可以不含极性官能团。 该方法包括制备聚合物的聚合物粘合剂和用于与水和非芳族助溶剂不混溶的乙烯基芳族烃嵌段的非芳族溶剂的共混物,通过将聚合物粘合剂添加到含有 至少一种表面活性剂并除去溶剂,助溶剂和过量的水。

    Reduction of diesel engine particulate emissions by contacting diesel
fuel with a carbon molecular sieve adsorbent
    3.
    发明授权
    Reduction of diesel engine particulate emissions by contacting diesel fuel with a carbon molecular sieve adsorbent 失效
    通过将柴油燃料与碳分子筛吸附剂接触来减少柴油发动机的颗粒物排放

    公开(公告)号:US5300218A

    公开(公告)日:1994-04-05

    申请号:US902604

    申请日:1992-06-23

    IPC分类号: C10G25/00 C10G25/05 F02B3/06

    CPC分类号: C10G25/003 C10G25/05 F02B3/06

    摘要: This invention is a method for reducing the particulate emissions tendency of diesel fuel. Also the piston ring sticking, and deposit formation tendency of diesel fuel on the injector and combustion chamber of an internal combustion diesel fuel are reduced. The diesel fuel under the method of this invention is fed to at least one adsorbent bed in which the diesel fuel is contacted with one or more adsorbents under suitable process conditions such that there is a reduction in content of impurities in the fuel which cause the particulate emission causing tendency, piston ring sticking, and deposit formation tendency of the diesel fuel on the injector and/or combustion chamber.

    摘要翻译: 本发明是减少柴油的颗粒物排放趋势的方法。 而且内燃柴油燃料的喷射器和燃烧室上的活塞环粘附和柴油燃料的沉积形成趋势也减少。 将本发明方法的柴油燃料送入至少一个吸附剂床,在该吸附床中柴油燃料在合适的工艺条件下与一种或多种吸附剂接触,使得燃料中的杂质含量降低,导致颗粒物 排放引起趋势,活塞环粘附,以及柴油燃料在喷射器和/或燃烧室上的沉积物形成倾向。

    Very fine stable dispersions of block copolymers
    4.
    发明授权
    Very fine stable dispersions of block copolymers 失效
    非常稳定的嵌段共聚物分散体

    公开(公告)号:US5292795A

    公开(公告)日:1994-03-08

    申请号:US880946

    申请日:1992-05-08

    摘要: A stable polymer dispersion having an average particle size of no more than 1 micron comprising water, a surfactant and a polymer comprising at least one conjugated diolefin block and/or vinyl aromatic hydrocarbon block and at least one acrylic monomer block with the structure ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, phenyl and alkyl radicals which are linear or branched and contain from 1 to 10 carbon atoms, and R.sub.2 is a cyclic or non-cyclic alkyl radical which is branched at the first carbon atom, contains from 1 to 14 carbon atoms and may contain a tertiary amine or an ether linkage.

    摘要翻译: 平均粒度不大于1微米的稳定的聚合物分散体包含水,表面活性剂和包含至少一个共轭二烯烃嵌段和/或乙烯基芳族烃嵌段的聚合物和至少一种具有以下结构的丙烯酸单体嵌段(* CHEMICAL 结构*)其中R 1选自氢,苯基和直链或支链并含有1至10个碳原子的烷基,R 2是在第一碳上分支的环状或非环状烷基 原子含有1至14个碳原子并且可以含有叔胺或醚键。