Production process for resin lens

A technology of resin lens and production process, which can be applied to other home appliances, optical components, home appliances, etc. It can solve the problems of friction and cracking, easy aging of the lens, and insufficient temperature resistance of the lens, and achieves strong anti-fog and super anti-fogging properties. Effects of improving impact performance and aging resistance

Inactive Publication Date: 2017-01-04
DONGXING HUAHONG OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, ordinary resin lenses with a refractive index of 1.56 can withstand temperatures up to 80°C after being coated. After being boiled in salt water, they will show friction cracks and different degrees of film removal. easy aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The production process of the resin lens of the present invention comprises the following steps:

[0013] Step 1: Prepare raw materials: 20 parts of dimethyl isophthalate, 40 parts of polycarbonate, 10 parts of methyl styrene, 12 parts of dibutyl phosphate, 7 parts of ultraviolet absorber, 4 parts of catalyst, 6 parts of hardener ;

[0014] Step 2: first add dimethyl isophthalate, polycarbonate, and methyl styrene into the reactor in sequence, and stir at a constant temperature of 110±2 degrees Celsius for 1 hour under the protection of nitrogen, then add dibutyl phosphate, ultraviolet The absorbent, catalyst, and hardener are sequentially added to the reactor, and continue to stir at a constant temperature of 120 ± 2 degrees Celsius for 0.5 hours under the protection of nitrogen to fully mix to form a mixture;

[0015] Step 3: Stir and mix the uniform mixture with nitrogen pressure and filter it, then pour it into a forming mold sealed with tape, the air pressure is ≤...

Embodiment 2

[0018] The production process of the resin lens of the present invention comprises the following steps:

[0019] Step 1: Prepare raw materials: 22 parts of dimethyl isophthalate, 50 parts of polycarbonate, 12 parts of methyl styrene, 13 parts of dibutyl phosphate, 5 parts of ultraviolet absorber, 3 parts of catalyst, 5 parts of hardener ;

[0020] Step 2: First add dimethyl isophthalate, polycarbonate, and methyl styrene into the reactor in sequence, and stir at a constant temperature of 110±2 degrees Celsius for 1.2 hours under the protection of nitrogen, then add dibutyl phosphate, ultraviolet The absorbent, catalyst, and hardener are sequentially added to the reactor, and continue to stir at a constant temperature of 120±2°C for 0.8 hours under the protection of nitrogen to fully mix to form a mixture;

[0021] Step 3: Stir and mix the uniform mixture with nitrogen pressure and filter it, then pour it into a forming mold sealed with tape, the air pressure is ≤ 0.10MPa;

...

Embodiment 3

[0024] The production process of the resin lens of the present invention comprises the following steps:

[0025] Step 1: Prepare raw materials: 25 parts of dimethyl isophthalate, 60 parts of polycarbonate, 15 parts of methyl styrene, 15 parts of dibutyl phosphate, 10 parts of ultraviolet absorber, 5 parts of catalyst, 8 parts of hardener ;

[0026] Step 2: First add dimethyl isophthalate, polycarbonate, and methyl styrene into the reactor in sequence, and stir at a constant temperature of 110±2 degrees Celsius for 1.5 hours under the protection of nitrogen, then add dibutyl phosphate, ultraviolet The absorbent, catalyst, and hardener are sequentially added to the reactor, and continue to stir at a constant temperature of 120 ± 2 degrees Celsius for 1 hour under the protection of nitrogen to fully mix to form a mixture;

[0027] Step 3: Stir and mix the uniform mixture with nitrogen pressure and filter it, then pour it into a forming mold sealed with tape, the air pressure is ...

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Abstract

The invention provides a production process for a resin lens. The production process comprises the following steps that raw materials are prepared; dimethyl isophthalate, polycarbonate and alpha methyl styrene are sequentially added into a reactor at first, constant temperature stirring is conducted for 1-1.5 h at the temperature of 110+ / -2 DEG C under protection of nitrogen gas, then, dibutyl phosphate, ultraviolet light absorbers, catalysts and hardeners are sequentially added into the reactor, constant temperature stirring is continuously conducted for 0.5-1.2 h at the temperature of 120+ / -2 DEG C under protection of the nitrogen gas, and after sufficient mixing, a mixture is formed; the uniformly-mixed mixture is stirred, subjected to pressure filtration through nitrogen gas and then poured into a forming mold sealed by adhesive tape, and the gas pressure is less than or equal to 0.10 MPa; the poured forming mold is put into a curing furnace to be cured, the curing temperature is controlled to be 50 DEG C or lower, and the curing time lasts for 1-2 h; and after demolding, the resin lens is subjected to hardening coating and saline water boiling tests. The resin lens prepared through the production process is good in light transmission performance and high in fog resistance.

Description

technical field [0001] The invention relates to the technical field of resin lenses, in particular to a production process of resin lenses. Background technique [0002] At present, ordinary resin lenses with a refractive index of 1.56 can withstand temperatures up to 80°C after being coated. After being boiled in salt water, they will show friction cracks and different degrees of film removal. Aging easily. Contents of the invention [0003] In view of the various problems faced in the background art, the purpose of the present invention is to provide a production process of a resin lens with good light transmission and strong anti-fog performance. [0004] In order to achieve the above object, the technical solution adopted in the present invention is: a production process of resin lens, comprising the following [0005] Steps: Step 1: Prepare raw materials: 20-25 parts of dimethyl isophthalate, 40-60 parts of polycarbonate, 10-15 parts of methyl styrene, 12-15 parts o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00
CPCB29D11/00009
Inventor 刘德兴
Owner DONGXING HUAHONG OPTICAL TECH
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