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Manufacturing process of or polymethyl acrylate composition and plastic product thereof

A technology of polymethyl methacrylate and composition, applied in the field of laser engraving, which can solve the problems of low work efficiency, non-environmental protection, easy to fall off, etc., and achieve the effect of improved work efficiency, good environmental protection, and uninterrupted lines

Active Publication Date: 2009-09-23
STARLIGHT PLASTIC MATERIAL SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the plastic parts made of these raw materials in the prior art form characters or patterns on the surface, generally only ink screen printing method can be used. The mimeograph method, which has not been changed for many years, is complicated to operate, the work efficiency is too low, the cost is too high, and it causes environmental pollution. , the product is not environmentally friendly
Moreover, this traditional mimeograph method cannot work on irregular platforms, especially when forming characters or patterns in hidden places such as slits or openings.
In addition, the characters or patterns formed by the mimeograph method do not have acid, alkali, oil resistance, poor wear resistance, and are easy to fall off.
Due to the limitation of existing raw materials, the molded plastic products cannot be used for laser engraving to form continuous and smooth characters or patterns

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0072] This example illustrates the resin composition of the present invention, its preparation method and the manufacturing method of the product by taking a black product engraved to form white characters or patterns as an example. Wherein the resin composition is proportioned according to the following mass percentages:

[0073] Polymethylmethacrylate 75%

[0074] Polyethyl methacrylate 24.5%

[0075] Black pigment with good thermal stability 0.5%

[0076] The manufacturing method of the product includes the following steps:

[0077] (1) Select the materials according to the above formula and put them into the kneader, knead and knead for 40-60 minutes under vacuum, high pressure, and 200-220°C until a uniform soft rubber is masticated;

[0078] (2) Plasticize the kneaded soft glue with a double-roll mill under the heating condition of 180-200°C, and press the soft glue into a sheet;

[0079] (3) cooling the flaky rubber block, and pulverizing to form fine flaky particl...

example 2

[0084] This example illustrates the resin composition, its preparation method and product manufacturing method of the present invention by taking a light green product engraved with yellow characters or patterns as an example. Wherein the resin composition is proportioned according to the following mass percentages:

[0085] Polymethylmethacrylate 75%

[0086] Polybutylmethacrylate 24.5%

[0087] Green Composite Pigment 0.5%

[0088] The green composite pigment with this difference in thermal stability is made of titanium blue and yellow pigments at a ratio of 3:1. The thermal stability is the same as soluble, and their thermal stability is lower than that of titanium blue pigments.

[0089] The manufacturing method of the product includes the following steps:

[0090] (1) Select the materials according to the above formula and put them into the kneader, knead and knead for 40-60 minutes under vacuum, high pressure, and 200-220°C until a uniform soft rubber is masticated; ...

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PUM

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Abstract

The invention relates to a polymethyl methacrylate composition and a method for producing plastic products thereof. In the composition, the main resin mass percentage is 25-90%, the modified resin is 5-70%, and the thermal stability difference pigment is 0.1-90%. 5%. Among them, the main resin is polymethyl methacrylate; the modified resin is a mixture of one or more of polyethyl methacrylate or butyl, and acrylate copolymers; the thermal stability of the thermal stability difference pigment is The properties are different from the main resin. The resin composition is suitable for laser engraving to form characters or patterns, and the formed characters or patterns are not easy to fall off, are environmentally friendly, have high work efficiency and low cost.

Description

technical field [0001] The invention relates to a resin composition for preparing plastic parts of products such as cards, telephones, computer keyboards, fax machines and a method for preparing the plastic parts. The resin composition is suitable for laser engraving. Background technique [0002] The plastic parts of products such as cards, telephones, computer keyboards, and fax machines are generally injection-molded with resin materials such as ABS and HIPS (high-impact polystyrene resin). However, when the plastic parts made of these raw materials in the prior art form characters or patterns on the surface, generally only ink screen printing method can be used. The mimeograph method, which has not been changed for many years, is complicated to operate, the work efficiency is too low, the cost is too high, and it causes environmental pollution. , The product is not environmentally friendly. Moreover, this traditional mimeograph method cannot work on irregular platforms,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/12C08L33/08B23K26/00B44B3/00
CPCB41M5/24C08L33/08C08L33/12
Inventor 江海波
Owner STARLIGHT PLASTIC MATERIAL SHENZHEN