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Method of producing laminate membrane
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A manufacturing method and base film technology, applied in the field of laminated parts manufacturing, can solve the problems of dimensional stability, transparency, heat resistance, moisture resistance, poor gas barrier properties, etc.
Active Publication Date: 2017-10-20
NIPPON STEEL CHEM &MATERIAL CO LTD
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Problems solved by technology
However, resins are generally inferior to glass in terms of dimensional stability, transparency, heat resistance, moisture resistance, gas barrier properties, etc., so various studies for improving these characteristics are currently being conducted
Method used
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[0094] Hereinafter, the present invention will be described based on test examples.
[0095] First, raw material monomers and abbreviations of solvents when synthesizing polyimides, and measurement methods and conditions of various physical properties in Examples are shown below.
[0106]Surface observation was performed in tapping mode using an atomic force microscope (AFM) "Multi Mode 8" manufactured by Bruker Corporation. Field observations of 10 μm square were performed four times, and their average value ...
Synthetic example 1
[0115] Synthesis example 1 (polyimide A)
[0116] Under nitrogen flow, 8.00 g of PDA was dissolved in the solvent DMAc in a 300 ml separable flask while stirring. Next, 22.00 g of BPDA was added to this solution. Thereafter, the solution was continuously stirred at room temperature for 5 hours to carry out a polymerization reaction, which was maintained throughout the day and night. It was confirmed that a viscous polyamic acid solution was obtained, and polyamic acid A with a high degree of polymerization was produced.
Synthetic example 2
[0117] Synthesis example 2 (polyimide B)
[0118] Under nitrogen flow, 12.08 g of TFMB was dissolved in the solvent DMAc in a 300 ml separable flask while stirring. Next, PMDA6.20g and 6FDA4.21g were added to this solution. Thereafter, the solution was continuously stirred at room temperature for 5 hours to carry out a polymerization reaction, which was maintained throughout the day and night. It was confirmed that a viscous polyamic acid solution was obtained, and polyamic acid B with a high degree of polymerization was produced.
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Abstract
A method for producing a laminate membrane is used for making a substrate membrane whose support material is provided with a polyimide layer on which a function layer in long strips are formed. The surface of the support material is provided with a heat resisting polyimide face having a glass-transition temperature over 300 DEG C. Resin solution of polyamide acid coats on the heat resisting polyimide face. Solvent contained in the resin solution is removed through heating treatment in 150 to 160 DEG C and heating treatment is further carried out in a manner of increasing temperature to 350 DEG C from 160 DEG C continuously or stage by stage so as to imidize the polyamide acid. Therefore, the polyimide layer having transmissivity over 70% in a wavelength area between 440nm to 780 nm is formed on the heat resisting polyimide face.
Description
[0001] The patent application of the present invention is a divisional application filed on February 20, 2014, the application number is 201410058089.7, and the title of the invention is "Manufacturing method of laminated components". technical field [0002] The present invention relates to a method for producing a laminated part. Specifically, it relates to a method in which a long substrate film is drawn out in the longitudinal direction to form a predetermined functional layer, and a part of the substrate film is separated and removed to make the thickness thinner to obtain a laminated part. A method of manufacturing laminated components. Background technique [0003] For example, display devices such as liquid crystal display devices and organic EL display devices are used in various display applications such as large displays such as televisions and small displays such as mobile phones, personal computers, and smartphones. Among them, for example, an organic EL display...
Claims
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Application Information
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