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Makrolon composition

A technology of polycarbonate and composition, which is applied in the field of polycarbonate composition that can improve injection fluidity and reduce electrostatic force, and can solve problems that affect the quality of molded products

Inactive Publication Date: 2012-06-06
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the above, it can be seen that in the past, the improvement of the moldability, release property or mold release property of the polycarbonate resin composition was mainly aimed at, but the flow of the molten polycarbonate resin in the mold cavity in the general injection molding process was neglected. It will directly affect the quality of molded products; moreover, general injection molded products (especially polycarbonate resin-based molded products) will rub against the surface of the mold during injection to generate electrostatic force, which will easily lead to surface adsorption of molded products. Dust in the environment will affect the quality of molded products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] After mixing 100 parts by weight of polycarbonate (Chi Mei Industrial Co., trade name PC-110) and 0.25 parts by weight of pentaerythritol fatty acid ester mixture 7806, extrude and granulate with a biaxial extruder to obtain this product Invented polycarbonate composition, and evaluated according to the above-mentioned physical property test methods of electrostatic force and spiral flow length.

[0040] The total or partial esterification content of the fatty acid and pentaerythritol listed in Table 1 is calculated based on the total weight of the total or partial esterification of the fatty acid and pentaerythritol as 100 wt%.

Embodiment 2～5 and comparative example 1～5

[0042] The preparation process, preparation conditions and testing process of Examples 2-5 are the same as those of Example 1, except that the parts by weight of the polycarbonate composition components are changed according to the parts by weight listed in Table 1. Similarly, the test results of electrostatic force and spiral flow length are summarized in Table 1.

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PUM

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Abstract

The invention discloses a makrolon composition comprising all or parts of makrolon, aliphatic acid, and pentaerythritol esterified esters. The total weight of the makrolon is 100 parts by weight, the weight of parts or all of makrolon is 0.2-1.0 part by weight. The all or parts of the makrolon contains 1-10wt% pentaerythritol single aliphatic ester, 35-80w% Isoamyl mangano glycol fatty acid ester, 10-40wt% Isoamyl alcohol fatty acid 3-aliphatic ester, and 5-20wt% Isoamyl alcohol fatty acid 4-aliphatic ester. The makrolon composition is helpful for improving the injection liquidity, and reducing the electrostatic force of the following produced products, and at the same time, improving the efficacy of the integral production process and the quality of the produced products.

Description

technical field [0001] The invention relates to a polycarbonate composition, in particular to a polycarbonate composition which can improve injection fluidity and reduce static force. Background technique [0002] Polycarbonate resin (Polycarbonate, referred to as PC) has high impact resistance and heat resistance and is the only one with transparency in general-purpose engineering plastics, so it has the title of "transparent steel". With the advantages of toughness and dimensional stability, it can be widely used in optical lenses, optical disc substrates, electrical appliances, building materials, automobiles and other fields. In recent years, with the expansion of application fields and production scale of polycarbonate resin, the requirements for processing characteristics are getting higher and higher. Therefore, the industry still expects to further improve its physical properties and processing properties. [0003] For example, US 4,131,575 discloses a thermoplastic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08K5/103
Inventor 戴嘉宏许顺益苏文义
Owner CHI MEI CORP
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