Compositions and processes for self-assembly of block copolymers
    2.
    发明授权
    Compositions and processes for self-assembly of block copolymers 有权
    嵌段共聚物自组装的组合物和方法

    公开(公告)号:US09574104B1

    公开(公告)日:2017-02-21

    申请号:US14885328

    申请日:2015-10-16

    Abstract: The present invention relates to novel copolymers containing cross-linkable and graft-able moieties, novel compositions comprised of these novel copolymers and a solvent, and methods for using these novel compositions to form neutral layer films which are both cross-linked and grafted on the substrate which are used in processes for aligning microdomains of block copolymers (BCP) on this neutral layer coated substrate such as self-assembly and directed self-assembly. The novel compositions are comprised of at least one novel random copolymer comprised of least one unit of structure (1), at least one unit of structure (2) at least one unit of structure (3) one H end group and one end group having structure (1′); where R1 is selected from the group consisting of a C1-C8 alkyl, C1-C8 fluoroalkyl, C1-C8 partially fluorinated alkyl moiety, C4-C8 cycloalkyl, C4-C8 cyclofluoroalkyl, C4-C8 partially fluorinated cycloalkyl, and a C2-C8 hydroxyalkyl; R2, R3 and R5 are independently selected from a group consisting of H, C1-C4 alkyl, CF3 and F; R4 is selected from the group consisting of H, C1-C8 alkyl, C1-C8 partially fluorinated alkyl moiety and C1-C8 fluoroalkyl, n ranges from 1 to 5, R6 is selected from the group consisting of H, F, C1-C8 alkyl and a C1-C8 fluoroalkyl and m ranges from 1 to 3, and n′ ranges from 1 to 5, and n″ ranges from 1 to 5, n′″ ranges from 1 to 5, R7 is a C1 to C8 alkyl and X is —CN, or an alkyloxycarbonyl moiety R8—O—(C═O)— where R8 is a C1 to C8 alkyl and represent the attachment point of the end group to the polymer. The novel polymers, compositions and processes are useful for fabrication of electronic devices.

    Method of synthesis of azo compounds
    4.
    发明授权
    Method of synthesis of azo compounds 有权
    合成偶氮化合物的方法

    公开(公告)号:US09227926B2

    公开(公告)日:2016-01-05

    申请号:US14321189

    申请日:2014-07-01

    Applicant: Arkema France

    CPC classification number: C07C253/30 C07C255/65

    Abstract: A process is provided for synthesizing an azo compound, such as AIBN, by oxidation of a hydrazo compound using hydrogen peroxide. This process comprises a step of adding to the reaction medium a particular reducing agent, such as hydrazine.

    Abstract translation: 提供了通过使用过氧化氢氧化氢化合物来合成偶氮化合物如AIBN的方法。 该方法包括向反应介质中加入特定还原剂如肼的步骤。

    Method for separation of isomers of azo compounds
    6.
    发明申请
    Method for separation of isomers of azo compounds 失效
    分离偶氮化合物异构体的方法

    公开(公告)号:US20010020088A1

    公开(公告)日:2001-09-06

    申请号:US09756652

    申请日:2001-01-10

    Inventor: Toshiyasu Ito

    CPC classification number: C07C253/34 C07C255/65

    Abstract: A method for separation of a racemic isomer and a meso isomer from a mixture of a racemic isomer and a meso isomer of a compound shown by the general formula null1null 1 (wherein R1 and R2 are each independently a lower alkyl group or a cyano group, which are different from each other, R3 and R4 are each independently a lower alkyl group, and R5 is a hydrogen atom or a lower alkoxy group), which comprises treating the mixture with a water soluble organic solvent.

    Abstract translation: 由通式[1]表示的化合物的外消旋异构体和内消旋异构体的混合物分离外消旋异构体和内消旋异构体的方法(其中,R 1和R 2各自独立地为低级烷基或氰基 它们彼此不同,R3和R4各自独立地为低级烷基,R5为氢原子或低级烷氧基),其包括用水溶性有机溶剂处理该混合物。

    Water-soluble associative triblock copolymers
    10.
    发明授权
    Water-soluble associative triblock copolymers 失效
    水溶性缔合三嵌段共聚物

    公开(公告)号:US5798421A

    公开(公告)日:1998-08-25

    申请号:US728051

    申请日:1996-10-09

    CPC classification number: C08F293/00 C07C255/65

    Abstract: This invention relates to copolymers of molecular mass of between 5,000 and 300,000, consisting of a hydrophilic central portion, for example a polyacrylamide chain, and of hydrophobic ends the hydrophobicity of which is comparable with that of alkyl groups containing 4-20 carbons. They are produced by polymerization of hydrophilic monomers with the aid of initiators, for example of azo type, the hydrophobic residues of which will constitute the hydrophobic ends of the final copolymer. These copolymers are useful for rheological control of aqueous and/or pigmented compositions, like paints.

    Abstract translation: 本发明涉及分子量为5,000至300,000的共聚物,由亲水中心部分(例如聚丙烯酰胺链)和疏水末端组成,其疏水性与含有4-20个碳的烷基相当。 它们通过借助于引发剂,例如偶氮型的亲水性单体的聚合制备,其疏水性残基将构成最终共聚物的疏水末端。 这些共聚物可用于水性和/或着色组合物(如油漆)的流变学控制。

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