DISPERSANTS AND DISPERSANT VISCOSITY INDEX IMPROVERS FROM SELECTIVELY HYDROGENATED POLYMERS
    6.
    发明申请
    DISPERSANTS AND DISPERSANT VISCOSITY INDEX IMPROVERS FROM SELECTIVELY HYDROGENATED POLYMERS 审中-公开
    分散剂和分散粘度指数从多种氢化聚合物中的改进

    公开(公告)号:WO1998017696A1

    公开(公告)日:1998-04-30

    申请号:PCT/US1997018197

    申请日:1997-10-21

    Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different conjugated dienes, a copolymer of a p-alkylstyrene and a conjugated diene, or a homopolymer of a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.

    Abstract translation: 本发明提供分散剂和分散剂粘度指数改进剂,其包括已被氢化和官能化的共轭二烯的聚合物。 分散剂物质包括包含两种不同共轭二烯的共聚物,对烷基苯乙烯和共轭二烯的共聚物或共轭二烯的均聚物的组合物。 聚合物被选择性氢化以产生具有高度受控量的不饱和度的聚合物,允许高选择性官能化。 还提供了通过本发明的分散剂物质在其分散性和/或粘度特性中改性的润滑剂流体,例如矿物油和合成油。 还提供了改变润滑流体如矿物和合成润滑油的分散性和/或粘度特性的方法。 分散剂物质还可以包括提供分散剂浓缩物的载体流体。

    RAPID DISSOLVING POLYMER COMPOSITIONS AND USES THEREFOR
    10.
    发明申请
    RAPID DISSOLVING POLYMER COMPOSITIONS AND USES THEREFOR 审中-公开
    快速溶解聚合物组合物及其用途

    公开(公告)号:WO1987003516A1

    公开(公告)日:1987-06-18

    申请号:PCT/US1986002638

    申请日:1986-12-10

    Abstract: A particulate, free-flowing and rapid dissolving polymer composition is prepared by comminuting a high molecular weight thermoplastic or viscoelastic polymer (11) at a temperature below its glass transition temperature while maintaining the polymer in an inert environment. A finely divided, solid coating agent (12) is mingled with the comminuted polymer while maintaining the polymer particles in a cold and inert atmosphere. The particles of coating agent are formed into a protective shell (13) around each polymer particle by mixing the components while raising the temperature of the mixture. The polymer composition finds use as a drag reducing agent; as an anti-misting agent; to enhance the efficiency of oil skimming processes and devices; and for the preparation of polymer solutions for other uses.

    Abstract translation: 通过在低于其玻璃化转变温度的温度下粉碎高分子量热塑性或粘弹性聚合物(11)来制备颗粒状,自由流动且快速溶解的聚合物组合物,同时将聚合物保持在惰性环境中。 将细碎的固体包衣剂(12)与粉碎的聚合物混合,同时将聚合物颗粒保持在冷和惰性气氛中。 通过在提高混合物的温度的同时混合各成分,涂覆剂颗粒在每个聚合物颗粒周围形成保护壳(13)。 聚合物组合物用作减阻剂; 作为防雾剂; 提高撇油过程和装置的效率; 并为其他用途制备聚合物溶液。

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