Aromatic polyamide for producing display, optical, or illumination elements

An aromatic and polyamide technology, applied in optical components, optical components, polyamide coatings, etc., can solve problems such as poor resistance to strong organic solvents

Active Publication Date: 2015-06-17
苏州聚萃材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most importantly, the membrane exhibits poor resistance to strong organic solvents

Method used

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  • Aromatic polyamide for producing display, optical, or illumination elements
  • Aromatic polyamide for producing display, optical, or illumination elements
  • Aromatic polyamide for producing display, optical, or illumination elements

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0340] Example 1. This example illustrates the general procedure for the preparation of copolymers from TPC, IPC and PFMB (70% / 30% / 100% mol) via solution condensation.

[0341] PFMB (3.2024 g, 0.01 mol) and dry DMAc (45 ml) were added to a 250 ml three necked round bottom flask equipped with a mechanical stirrer, nitrogen inlet and outlet. After PFMB was completely dissolved, IPC (0.6395 g, 0.003 mol) was added to the solution at room temperature under nitrogen, and the flask wall was washed with DMAc (1.5 ml). After 15 minutes, TPC (1.4211 g, 0.007) was added to the solution and the walls of the flask were washed again with DMAc (1.5 ml). The viscosity of the solution increases until the mixture forms a gel. After the addition of PrO (1.4 g, 0.024 mol), the gel collapsed with stirring to form a viscous, homogeneous solution. After an additional 4 hours of stirring at room temperature, the resulting copolymer solution could be cast directly into a film.

Embodiment 2

[0342] Example 2. This example illustrates the general procedure for the preparation of copolymers from TPC, PFMB and FDA (100% / 80% / 20% mol) via solution condensation.

[0343] To a 100 ml four necked round bottom flask equipped with a mechanical stirrer, nitrogen inlet and outlet, was added PFMB (1.0247 g, 3.2 mmol), FDA (0.02788 g, 0.8 mmol) and dry DMAc (20 ml) at room temperature under nitrogen. After PFMB was completely dissolved, TPC (0.8201 g, 4.04 mmol) was added to the solution, and the walls of the flask were washed with DMAc (5.0 ml). The viscosity of the solution increases until the mixture forms a gel. After the addition of PrO (0.5 g, 8.5 mmol), the gel collapsed with stirring to form a viscous, homogeneous solution. After an additional 4 hours of stirring at room temperature, the resulting copolymer solution could be cast directly into a film.

Embodiment 3

[0344] Example 3. This example illustrates the general procedure for the preparation of copolymers from TPC, IPC, DADP and PFMB (70% / 30% / 3% / 97% mol) via solution condensation.

[0345] Into a 250 ml three necked round bottom flask equipped with a mechanical stirrer, nitrogen inlet and outlet, was added PFMB (3.1060 g, 0.0097 mol), DADP (0.0817 g, 0.0003 mol) and dry DMAc (45 ml) at room temperature under nitrogen. After PFMB was completely dissolved, IPC (0.6091 g, 0.003 mol) was added to the solution, and the walls of the flask were washed with DMAc (1.5 ml). After 15 minutes, TPC (1.4211 g, 0.007 mol) was added and the walls of the flask were washed again with DMAc (1.5 ml). The viscosity of the solution increases until the mixture forms a gel. After the addition of PrO (1.4 g, 0.024 mol), the gel collapsed with stirring to form a viscous, homogeneous solution. After an additional 4 hours of stirring at room temperature, the resulting copolymer solution could be cast direc...

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Abstract

The present disclosure is directed toward solutions, transparent films prepared from aromatic copolyamides, and a display element, an optical element or an illumination element using the solutions and / or the films. The copolyamides, which contain pendant carboxylic groups are solution cast into films using cresol, xylene, N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), dimethylsulfoxide (DMSO), or butyl cellosolve or other solvents or mixed solvent which has more than two solvents. When the films are thermally cured at temperatures near the copolymer glass transition temperature, after curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims priority under 35 U.S.C. 119 to U.S. Provisional Patent Application 61 / 704,852, filed September 24, 2012, which is hereby incorporated by reference in its entirety. field of invention [0003] In one aspect, the invention relates to the fabrication of thermally and dimensionally stable transparent polymer films. More specifically, the present disclosure relates, in one aspect, to the manufacture and use of aromatic polyamides having a rigid backbone with a glass transition temperature above 300°C, which remain soluble in conventional organic compounds without the presence of inorganic salts. in solvent. Polymer films can be prepared by solution casting and cured at elevated temperatures. The cured films exhibit high optical transparency (>80% transmittance) in the 400-750 nm range, low coefficient of thermal expansion (CTE<20 ppm / °C), and good solvent resistance. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/32C08L77/06
CPCG02B1/04C08G69/265C09D177/10C08G69/28C08G69/32Y10T156/11Y02E10/549Y02P70/50C08L77/10B29D11/0073H10K77/111
Inventor 法兰克·W·哈里斯张东孙立民景蛟凯江口敏正楳田英雄川崎律也片山敏彦井上雄介冈田润前田文宽井上美津穗内藤学
Owner 苏州聚萃材料科技有限公司
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