Photoresist and preparation method

A light-blocking and light-blocking agent technology, which is applied in the field of light-blocking materials and preparations, can solve the problems of bulky parts, insignificant increase in light-blocking effect, failure to meet product performance requirements, etc., achieve effective light-blocking performance, and solve light-blocking problems bad effect

Inactive Publication Date: 2008-06-18
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The method of increasing the thickness not only does not significantly increase the light-blocking effect of the part, but also makes the part bulky and the cost of raw materials is also greatly increased. However, only increasing the amount of titanium dioxide light-blocking agent will reduce the various properties of the material, which cannot be achieved. Meet other performance requirements of the product, especially the decline in mechanical properties is particularly obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The raw material ratio of each component is:

[0026] Matrix resin: acrylonitrile-butadiene-styrene copolymer, 85 parts;

[0027] Light blocking agent A: 10 parts of titanium dioxide;

[0028] Light blocking agent B: 4 parts of montmorillonite,

[0029] Auxiliaries: 0.2 parts of di-tert-butyl-hydroxyphenyl-propionate pentaerythritol ester antioxidant, 0.5 parts of triphenyl phosphite, 0.2 parts of lubricant calcium stearate, and 0.1 part of benzotriazole.

[0030] After mixing the base resin and other components, the twin-screw extruder with a screw length-to-diameter ratio of 40:1 is extruded and granulated at a temperature of 200°C and a rotational speed of 500 rpm to obtain light-blocking acrylonitrile- Butadiene-styrene material.

[0031] Reference example 1

[0032] The raw material ratio of each component is:

[0033] Base resin: acrylonitrile-butadiene-styrene copolymer, 99 parts;

[0034] Additives: 0.2 parts of di-tert-butyl-hydroxyphenyl-propionate penta...

example 2

[0037] The raw material ratio of each component is:

[0038] Matrix resin: acrylonitrile-butadiene-styrene copolymer, 80 parts;

[0039] Light blocking agent A: 19 parts of titanium dioxide;

[0040] Additives: 0.2 parts of di-tert-butyl-hydroxyphenyl-propionate pentaerythritol ester antioxidant, 0.5 parts of di-tert-butylphenyl phosphite triester, 0.2 parts of lubricant calcium stearate, 0.1 part of benzotriazole .

[0041] After mixing the base resin and other components, the twin-screw extruder with a screw length-to-diameter ratio of 40:1 is extruded and granulated at a temperature of 200°C and a rotational speed of 500 rpm to obtain light-blocking acrylonitrile- Butadiene-styrene material.

Embodiment 2

[0043] According to the second method, the photoresist masterbatch is firstly prepared, and then the photoresist masterbatch is blended with the matrix resin. The proportion of each component of the masterbatch is:

[0044] Light blocking agent A zirconia 30 parts;

[0045] Light blocking agent B 5 parts of kaolin, 5 parts of talcum powder;

[0046] Matrix resin polyethylene 50 parts,

[0047] Auxiliaries: 0.5 parts of di-tert-butyl-hydroxyphenyl-propionate pentaerythritol ester antioxidant, 0.5 parts of triphenyl phosphite, 3 parts of stearic acid, 1 part of calcium carbonate,

[0048] After mixing, add it into a twin-screw extruder, extrude and granulate, and make a masterbatch. The extrusion temperature is set at 160 ° C, and the rotation speed is set at 350 rpm. The prepared light-blocking masterbatch and polypropylene are pressed by 1 : 1 mixed, extruded in a twin-screw extruder with a length-to-diameter ratio of 40: 1, and then pelletized to make a light-blocking poly...

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PUM

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Abstract

The present invention relates to opacity material, characterized in that the material consists of the following components in terms of weight portion: 50 to 95 portions of matrix resin, 2 to 30 ports of opacifier A, 1 to 20 portions of opacifier B and 0.1 to 40 portions of assistant. The light-colored opacity material prepared by the present invention can achieve effective opacity when the thickness is only 3mm, thus solving the poor opacity of the light-colored material. The present invention can be applied to various fields with requirements of opacity and optical crosstalk prevention, such as automobile instrument panel and apparatus control and operation components.

Description

technical field [0001] The present invention relates to a light-blocking material and a preparation method, in particular to a preparation method of various non-carbon black colored polymer composite materials with light-blocking requirements, which can be applied to automobile dashboards, home appliance control operation parts, etc. Components have light-blocking requirements and various fields of preventing cross-lighting, which belong to the technical field of light-blocking materials. Background technique [0002] There are two main methods for the preparation of light-blocking polymer composites: the first method is by adding a surface coating or a light-blocking film, but this method requires high process requirements and is expensive, and its stability is poor. Another method is to add a light blocking agent to the substrate resin to achieve the light blocking effect, and the most common use is to use carbon black as the light blocking agent. [0003] With the contin...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L25/06C08L23/00C08L67/00C08L77/00C08L59/02C08K5/524B29B9/12C08K3/22C08K3/36
Inventor 袁绍彦陈延安
Owner SHANGHAI KINGFA SCI & TECH
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