Method for manufacturing liquid crystal polymer film

JP7731147B2Active Publication Date: 2025-08-29AZOTEK
8 Cites 0 Cited by

Patent Information

Application Number
JP2023088056
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2023-04-11
Filing Date
2023-05-29
Publication Date
2025-08-29
Estimated Expiration
2043-05-29

Smart Images

  • Figure 0007731147000006
    Figure 0007731147000006
  • Figure 0007731147000001
    Figure 0007731147000001
  • Figure 0007731147000002
    Figure 0007731147000002
Patent Text Reader

Abstract

To provide a production method of a liquid crystal polymer film.SOLUTION: A production method of a liquid crystal polymer film includes: an operation to receive a liquid crystal oligomer having a melting point Tm1 and an average degree of polymerization of 10-100; an operation to fuse the liquid crystal oligomer by performing a first heating process with a first heating temperature higher than Tm1; an operation to perform an extrusion process so as to form the liquid crystal oligomer into a first film; and an operation to heat the first film by performing a second heating process with a second heating temperature so as to make the liquid crystal oligomer in the first film start a polymerization reaction and form a second film containing the liquid crystal polymer.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Industrial production process of liquid crystal polyester film

    CN110181829A

  • Liquid crystal resin substrate used for high-frequency printed circuit board and preparation method of substrate

    CN110776928A

  • Liquid crystal oligomer polymer film, its production and phase difference plate and liquid crystal display device formed by using liquid crystal oligomer polymer film

    JP1994331826A

  • Liquid crystalline polymer film and laminate, preparation of them, and multilayered mounting circuit base board

    JP2000044797A

  • Method for manufacturing optical element

    JP2003207644A