Automotive OEM (original equipment manufacturer) intermediate coat with high solid content and low viscosity and preparation method of intermediate coat

A low-viscosity, high-solids technology, applied in the field of coatings, can solve the problems of narrow application range of powder coatings and PVC coatings, large increase in raw material costs, and insufficient appearance and development, and achieve superior environmental performance, good interlayer adhesion, The effect of small molecular weight

Active Publication Date: 2016-11-16
山东时风(集团)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to many problems in water-based coatings, such as high requirements for supporting equipment and large investment, large increase in raw material costs, slow drying speed, obvious influence of temperature and humidity on constru...

Method used

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  • Automotive OEM (original equipment manufacturer) intermediate coat with high solid content and low viscosity and preparation method of intermediate coat
  • Automotive OEM (original equipment manufacturer) intermediate coat with high solid content and low viscosity and preparation method of intermediate coat
  • Automotive OEM (original equipment manufacturer) intermediate coat with high solid content and low viscosity and preparation method of intermediate coat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A high-solid-content low-viscosity automotive OEM intermediate coating. The raw materials are composed of 25% polyester resin, 12% anti-sagging resin, 20% rutile titanium dioxide, and 12% ultra-fine precipitated barium sulfate. Dispersant 1%, white carbon black 0.3%, silicone leveling agent 0.3%, acrylate leveling agent 0.6%, surfactant 0.4%, anti-settling agent 0.2%, cyclohexanone 3%, ethylene glycol ether acetate 3% ester, 0.2% carbon black, 20% butylated amino resin, 2% partially methylated amino resin.

[0033] The polyester resin, in parts by weight, consists of raw materials: 2.0 parts of isooctanoic acid, 20 parts of adipic acid, 5 parts of tetrahydrophthalic anhydride, 16 parts of phthalic anhydride, and 1 part of trimethylpentanediol , 30 parts of neopentyl glycol, 7 parts of pentaerythritol, 0.3 parts of hypophosphorous acid, 0.05 parts of antioxidant 1010, 15 parts of dimethyl mixed acid, 2.0 parts of xylene, 3 parts of propylene glycol methyl ether acetate, ...

Embodiment 2

[0052] A high-solid-content low-viscosity automotive OEM intermediate coating. The raw materials are composed of 30% polyester resin, 10% anti-sagging resin, 15% rutile titanium dioxide, 1% glass hollow microspheres, and super Fine precipitated barium sulfate 12%, dispersant 1%, white carbon black 0.15%, silicone leveling agent 0.3%, acrylate leveling agent 0.3%, surfactant 0.2%, ethylene glycol ether acetate 5%, carbon Black 0.05%, butylated amino resin 23%, partially methylated amino resin 2%.

[0053] Described polyester resin, by weight, its raw material is composed of: 1.5 parts of benzoic acid, 1.5 parts of isooctanoic acid, 28 parts of adipic acid, 10 parts of phthalic anhydride, 2 parts of trimethylpentanediol, 25 parts of neopentyl glycol, 4 parts of pentaerythritol, 0.1 part of antioxidant 1010, 5 parts of dimethyl mixed acid, 1 part of xylene, 6 parts of propylene glycol methyl ether acetate, and 5 parts of butyl acetate.

[0054] The anti-sagging resin is made of ...

Embodiment 3

[0072] A high-solid-content low-viscosity automotive OEM intermediate coating, in terms of mass percentage, its raw materials are: 35% polyester resin, 5% anti-sag resin, 15% rutile titanium dioxide, 2% glass hollow microspheres, super Fine precipitated barium sulfate 15%, dispersant 2%, white carbon black 0.1%, silicone leveling agent 0.1%, acrylate leveling agent 0.3%, surfactant 0.45%, ethylene glycol ether acetate 3%, carbon Black 0.05%, butylated amino resin 20%, partially methylated amino resin 2%.

[0073] The polyester resin, in parts by weight, consists of raw materials: 0.5 parts of benzoic acid, 1 part of isooctanoic acid, 24 parts of adipic acid, 2.5 parts of tetrahydrophthalic anhydride, 13 parts of phthalic anhydride, trimethyl 0 parts of pentylene glycol, 35 parts of neopentyl glycol, 5 parts of pentaerythritol, 0.2 parts of hypophosphorous acid, 10 parts of dimethyl mixed acids, 0.5 parts of xylene, 4 parts of propylene glycol methyl ether acetate, and 3 parts ...

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Abstract

The invention mainly relates to the field of coatings, in particular to an automotive OEM (original equipment manufacturer) intermediate coat with high solid content and low viscosity and a preparation method of the intermediate coat. The intermediate coat comprises raw materials in percentage by mass as follows: 25%-35% of polyester resin, 5%-12% of anti-sagging resin, 15%-25% of rutile titanium dioxide, 0-2% of hollow glass microspheres, 12%-18% of superfine precipitated barium sulfate, 1%-3% of a dispersing agent, 0.1%-0.3% of white carbon black, 0.1%-0.3% of an organosilicon leveling agent, 0.3%-0.6% of an acrylate leveling agent, 0.2%-0.5% of a surfactant, 0-2% of an anti-settling agent, 0-4% of cyclohexanone, 3%-5% of ethylene glycol monoethyl ether acetate, 0.05%-0.2% of carbon black, 20%-28% of butylated amino resin and 2%-4% of partial methylated amino resin. The intermediate coat is low in applicable viscosity, good in appearance, economical and environment-friendly and has high content of applicable solids.

Description

Technical field [0001] The present invention mainly relates to the field of coatings, and in particular to a high solid content and low viscosity automobile OEM mid-coat coating and a preparation method thereof. Background technique [0002] In 2015, in accordance with the "Ambient Air Quality Standards" (GB3095-2012), the proportion of days meeting the standards in 338 cities at prefecture level and above (including prefectures, prefectures, and leagues) across the country ranged from 5.5% to 100%, with an average of 72.7%. The average proportion of days exceeding the standard is 27.3%, of which 18.7% are mild pollution, 5.2% are moderate pollution, 2.7% are severe pollution, and 0.7% are severe pollution. The main pollutant is volatile organic compounds, which are an important cause of haze. carrier, so it is imperative to improve the quality of the air environment. [0003] The coating process of the automobile manufacturing industry is a process of using volatile organi...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D161/32C09D7/12C08G63/20C08G63/78
CPCC08G63/20C08G63/78C08L2205/025C08L2205/035C09D7/61C09D7/63C09D7/65C09D7/70C09D167/00C08L61/32C08K13/04C08K7/28C08K2003/2241C08K2003/3045C08K3/36C08K3/04
Inventor 刘成强刘爱萍徐海港姚红蕾刘金涛杨金河王爱文徐名霞刘昊
Owner 山东时风(集团)有限责任公司
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