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    Method for producing a planar polymer stack
    14.
    发明授权
    Method for producing a planar polymer stack 有权

    公开(公告)号：US11454880B2

    公开(公告)日：2022-09-27

    申请号：US16766491

    申请日：2018-11-23

    Applicant: ARKEMA FRANCE

    Inventor： Xavier Chevalier

    IPC: G03F1/48 ,  C08F287/00 ,  G03F1/80

    Abstract: The invention relates to a method for manufacturing a flat polymeric stack, said stack comprising one or more first and one second layer of (co)polymer (20, 30) stacked one on the other, the first underlying (co)polymer layer (20) not having undergone any prior treatment allowing its crosslinking, at least one of the (co)polymer layers initially being in a liquid or viscous state, said method being characterized in that the upper layer (30), known as the top coat (TC), is deposited on the first layer (20) in the form of a prepolymer composition (pre-TC), comprising one or more monomer(s) and/or dimer(s) and/or oligomer(s) and/or polymer(s) in solution, and in that it is then subjected to a heat treatment capable of causing a crosslinking reaction of the molecular chains within said layer (30, TC).

    Prepolymer composition intended to form a contrast layer and method for structuring an interface material
    19.
    发明授权
    Prepolymer composition intended to form a contrast layer and method for structuring an interface material 有权

    公开(公告)号：US11868044B2

    公开(公告)日：2024-01-09

    申请号：US17785324

    申请日：2020-12-29

    Applicant: ARKEMA FRANCE

    Inventor： Xavier Chevalier

    IPC: G03F7/00 ,  C08J3/24 ,  G03F7/038 ,  G03F7/09 ,  G03F7/095

    CPC classification number: G03F7/0002 ,  C08J3/243 ,  G03F7/038 ,  G03F7/091 ,  G03F7/095

    Abstract: The invention relates to a crosslinkable prepolymer composition for use as a contrast layer. It also relates to a method for structuring an interface material. This method is characterized in particular by the following steps:



    depositing, on a block copolymer film, a prepolymer composition layer comprising a plurality of functional monomers and at least one crosslinkable functional group within its polymer chain and, on the other hand, two chemically different crosslinking agents, each agent being capable of initiating the crosslinking of said prepolymer in response to a stimulation specific thereto,
    subjecting the stack to a first stimulation localized on first areas, so as to cause a crosslinking reaction of the molecular chains of said prepolymer, and subjecting the stack to a second stimulation, so as to cause crosslinking of the molecular chains of said prepolymer by the action of said second crosslinking agent in secondary areas.

    PROCESS FOR CONTROLLING THE ORIENTATION OF THE NANODOMAINS OF A BLOCK COPOLYMER
    20.
    发明申请
    PROCESS FOR CONTROLLING THE ORIENTATION OF THE NANODOMAINS OF A BLOCK COPOLYMER 审中-公开

    公开(公告)号：US20200150535A1

    公开(公告)日：2020-05-14

    申请号：US16631093

    申请日：2018-07-20

    Applicant: Arkema France

    Inventor： Xavier Chevalier

    IPC: G03F7/16 ,  G03F7/00

    Abstract: The invention relates to a process for controlling the orientation of the nanodomains of a block copolymer (BCP), the lower interface of which is in contact with the surface, neutralized beforehand, of a substrate, the said block copolymer being capable of nanostructuring itself to give nanodomains with a predetermined period (L0), over a minimum thickness (t) at least equal to half of the said period (L0), the said process being characterized in that it consists in depositing the said block copolymer (BCP) on the said substrate, so that its total thickness (T+t) is at least two times greater and preferably at least three times greater than the said minimum thickness (t), and in then depositing, on the said block copolymer (BCP), an interface material which makes it possible to isolate it from the ambient atmosphere.

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