Polybutylene terephthalate material used for decorative ring of vehicle lamp

A technology of polybutylene terephthalate and decorative rings, which is applied in the field of polybutylene terephthalate engineering plastics, can solve problems such as the need for primer spraying, and achieve improved productivity, good solubility, and good The effect of dispersion performance

Inactive Publication Date: 2009-10-07
POLYONE POLYMER SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a polybutylene terephthalate material for car lamp decorative rings, and aims to solve the problem that the existing car lamp decorative ring materials need to be sprayed with primer in the process of processing

Method used

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  • Polybutylene terephthalate material used for decorative ring of vehicle lamp
  • Polybutylene terephthalate material used for decorative ring of vehicle lamp
  • Polybutylene terephthalate material used for decorative ring of vehicle lamp

Examples

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Embodiment 1 9

[0041] Embodiments 1 to 9: A polybutylene terephthalate material for car lamp decorative rings

[0042] Embodiment one~nine material formulations are as follows:

[0043]

[0044] Preparation method: After weighing the materials in the formula, place them in a twin-screw extruder, extrude and granulate. The compositions of hindered phenolic antioxidants, phosphite antioxidants and composite nucleating agents are described in detail in tables.

[0045] Hindered phenolic antioxidants are as follows:

[0046]

[0047] In the above table, the symbol Represents the choice of only one antioxidant, and the numbers represent the mass ratio relationship between hindered phenol antioxidants.

[0048] Phosphite antioxidants are as follows:

[0049]

[0050] In the above table, the symbol Represents the choice of only one antioxidant, and the number represents the mass ratio relationship between each phosphite antioxidant.

[0051] The composite nucleating agent is as fol...

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Abstract

The invention relates to a polybutylene terephthalate material used for a decorative ring of a vehicle lamp, which consists of the following raw materials by weight percentage: 0.1 to 0.5 percent of hindered phenol antioxidant, 0.1 to 0.5 percent of phosphorous ester antioxidant, 0.1 to 5 percent of polyethylene wax, 0.1 to 5 percent of composite nucleating agent, 69 to 98.6 percent of polybutylene terephthalate and 1 to 20 percent of talcum powder or kaolin; the composite nucleating agent is a complex which consists of at least one of calcium carbonate, silicon dioxide, bentonite, sodium carbonate, potassium carbonate and boron nitride with the particle size of 0.01 to 1 micron and at least one of sodium benzoate of organic nucleating agent, sorbitan dibenzyl, calcium stearate, sodium acetate, para-sodium phenolsulfonate, para-calcium phenolsulfonate and sodium phenolate. The polybutylene terephthalate material improves surface property of the material and saves the procedure of spraying primer in the spraying process, thus reducing labour cost and material cost and reducing defective products due to reduction of one procedure.

Description

technical field [0001] The invention relates to a polybutylene terephthalate material for car lamp decorative rings, in particular to a polybutylene terephthalate engineering plastic which can be directly plated with aluminum without pre-spraying primer. Background technique [0002] In the past, heat-resistant PC (Polycarbonate, polycarbonate) materials have been used as the main material for car lamp trim rings. In recent years, they have been gradually replaced by PBT / PET (polybutylece terephthalate, polybutylene terephthalate; Ethylene glycol formate) plus mineral filler material instead. Compared with heat-resistant PC, the outstanding advantages of PBT / PET materials are good heat resistance and low cost. Compared with heat-resistant PC, the material price is about 40% lower in cost. PBT / PET products also have the characteristics of high surface gloss, good processing stability, good hydrolysis resistance and excellent fluidity, and can realize the integration of refle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/02C08K5/13C08K5/524C08K3/34
Inventor 张海斌董伟李耀明
Owner POLYONE POLYMER SUZHOU
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