Optical polycarbonate resin, preparation method and application thereof

A polycarbonate resin and carbonic diester technology, applied in optics, optical components, instruments, etc., can solve problems such as difficulty in meeting market demands and low refractive index of polycarbonate

Pending Publication Date: 2021-01-22
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Patent document CN201310062561.X proposes a polycarbonate containing 9,9-bis-(4-(2-hydroxyethoxy)phenyl)fluorene and its derivatives. The refractive index of the examples is ≤1.64, which is difficult Meet current market needs
[0005] Patent document CN104769007A discloses a polycarbonate containing 2,2-bis-(2-hydroxyethoxy)-1,1-binaphthalene and its derivatives, the refractive index of the examples is ≤1.668, the patent provides The polycarbonate refractive index is still low

Method used

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  • Optical polycarbonate resin, preparation method and application thereof
  • Optical polycarbonate resin, preparation method and application thereof
  • Optical polycarbonate resin, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] 32.22g (0.045mol) raw material DBPEF, 16g (0.025mol) raw material SDPEF, 7.5g (0.03mol) raw material BP-S, 22.042g (0.103mol) diphenyl carbonate, 32.58μg (1×10 -6 mol) cesium carbonate into a 200ml four-neck flask equipped with a stirrer and a distillation device, replaced with nitrogen 5 times, heated to 250°C under a nitrogen atmosphere of 101Kpa (A), started heating for 40 minutes and confirmed that the raw materials were completely dissolved, and then started stirring , adjust the pressure to 20Kpa (A), and at the same time raise the temperature to 280°C at a rate of 60°C / hr. The temperature was raised to 310°C, and after the temperature reached 310°C, the pressure was gradually reduced to 50 Pa (A) within 1 hour, and the reaction was stirred for 45 minutes under this condition, and the reaction was terminated. After the reaction, the four-necked flask was filled with nitrogen to return to normal pressure, and the polycarbonate resin produced was taken out for perfo...

Embodiment 2

[0064] 19.3g (0.025mol) raw material DBPBF, 24.36g (0.035mol) raw material SDPBF, 10g (0.04mol) raw material BP-S, 21.4g (0.1mol) diphenyl carbonate, 43.62mg (1×10 -4 mol) lanthanum acetylacetonate is put into the 200ml four-necked flask that has stirrer and distillation unit, except that, carry out the operation identical with embodiment 1, the polycarbonate physical property parameter that obtains is as shown in table 1.

Embodiment 3

[0066] 7.16g (0.01mol) raw material DBPEF, 31.32g (0.045mol) raw material SDPBF, 11.25g (0.045mol) raw material BP-S, 20.972g (0.098mol) diphenyl carbonate, 325.8μg (1×10 -5 mol) cesium carbonate is put into the 200ml four-necked flask that has agitator and distillation unit, except that, carry out operation identical with embodiment 1, the polycarbonate physical property parameter that obtains is as shown in table 1.

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Abstract

The invention discloses optical polycarbonate resin for an optical lens, a preparation method and application thereof, wherein the polycarbonate resin comprises a structural unit shown in a general formula (1), can reach a high refractive index of 1.7 or above and has good hardness and a proper processing temperature. The optical lens prepared from the polycarbonate resin has the advantages of high refractive index, low Abbe number and high stability, so the optical lens can be used in the high-end fields of telescopes, binocular telescopes, unmanned lenses, VR/AR lenses and the like.

Description

technical field [0001] The invention relates to the field of polycarbonate, in particular to an optical polycarbonate resin for an optical lens and a preparation method and application thereof. Background technique [0002] At present, mobile smart terminals, car intelligence, security monitoring, etc. are more and more closely connected with people's lives. In these fields, cameras are important components. The most critical thing in the camera is the optical material used for the lens. Currently, optical glass and optical resin are mainly used in the market. Optical glass is expensive to process, difficult to form, and technically difficult, while optical resin can be molded by conventional injection molding, which has high production efficiency and low cost. Therefore, the use of optical resin materials for optical lenses has gradually become the mainstream of the market. [0003] Since optical lenses are mainly used in consumer electronics products, there is a trend of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G64/06C08G64/08C08G64/30G02B1/04
CPCC08G64/06C08G64/081C08G64/305C08G64/307G02B1/041
Inventor 曾伟隋东武王晓东李强王磊黎源赵欣陈永杨洋杨井涛宋延方
Owner WANHUA CHEM GRP CO LTD
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