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Organic-inorganic hybrid paint composition

A composition and inorganic technology, applied in coatings, epoxy resin coatings, etc., can solve the problems of low crosslinking density, can not meet the adhesion, abrasion resistance, gloss performance, scratches, etc., to improve crosslinking The effect of density

Inactive Publication Date: 2013-08-21
AKZO NOBEL COATINGS INT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, conventional paint compositions containing silicone resins require curing accelerators to cure the silicone resins and due to the low cross-linking density between the silicone resins and the organic resins, a low surface area is formed on the outer surfaces of mobile phones or home appliances, etc. Hardness and scratch resistance and therefore paint films that scratch and reduce the value of the product
Furthermore, conventional paint compositions containing silicone resins cannot satisfy properties including adhesion to substrates, abrasion resistance, gloss, etc., which are required in this field

Method used

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  • Organic-inorganic hybrid paint composition

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0059] —Preparation of Organic Resin 1

[0060] 40 parts by weight of an organic solvent obtained by mixing toluene and n-butyl acetate at a weight ratio of 10:30 was introduced into the reaction flask, and then the reaction mixture was heated to a temperature of about 120°C. Then, in this reaction flask, the monomer comprising 18 parts by weight of methyl methacrylate, 12 parts by weight of butyl acrylate, 16 parts by weight of 2-hydroxyl methacrylate, 7 parts by weight of methacrylic acid and 7 parts by weight of methacrylic acid were gradually added dropwise. Part organic peroxide initiator—benzoyl peroxide, so as to obtain an acrylic resin with a solid content of 60% by weight and a viscosity of 1900cps (weight average molecular weight: 18,000) based on the total weight of the acrylic resin.

[0061] 48 parts by weight of the obtained acrylic resin were introduced together with 20 parts by weight of melamine resin (CYMEL 325 from CYTEC Industries Inc.) and 10 parts by weig...

preparation Embodiment 3

[0065] —Preparation of Inorganic Resin 1

[0066] Add 1 part by weight of acetic acid to 30 parts by weight of colloidal silica (SN-SOL of Japan Catalysts & Chemicals Industries Co. Ltd.) to adjust the pH to about 2-3, and then ) to which was gradually added 50 parts by weight of methyltrimethoxysilane and 19 parts by weight of isopropanol while performing hydrolysis and condensation, thereby obtaining a ceramic resin with a solid content of 40% by weight based on the total weight of the ceramic resin.

preparation Embodiment 4

[0067] —Preparation of Inorganic Resin 2

[0068] Add 1 part by weight of acetic acid to 30 parts by weight of colloidal silica (SN-SOL of Japan Catalysts & Chemicals Industries Co. Ltd.) to adjust the pH to about 2-3, and then ) to which 45 parts by weight of methyltrimethoxysilane, 10 parts by weight of tetraethoxysilane and 14 parts by weight of isopropanol are gradually added to carry out hydrolysis and condensation, thereby obtaining a solid content of 45 based on the total weight of the ceramic resin % by weight ceramic resin.

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Abstract

The present invention relates to an organic-inorganic hybrid paint composition comprising (a) an organic resin comprising an acrylic resin, a melamine resin and an epoxy resin; (b) a ceramic resin; and (c) a solvent. The paint composition of the present invention may be easily cured without a curing accelerator unlike conventional paint compositions, and it may form a paint film having generally improved properties of surface hardness and scratch resistance, as well as gloss, adhesion, boil resistance, chemical resistance, and the like.

Description

field of invention [0001] The present invention relates to an organic-inorganic hybrid paint composition, and more particularly to an organic-inorganic hybrid paint composition capable of forming a paint film having excellent surface hardness and scratch resistance by thermal curing without a curing accelerator . Background of the invention [0002] In recent years, organic-inorganic hybrid paint compositions have been used in various coatings in order to protect the surfaces of mobile phone casings, exteriors of home appliances, automobiles, automobile parts, various display products, etc., and to prevent scratches on the surfaces. A hard coat (paint film) is formed on the surface of the substrate. [0003] As an organic-inorganic hybrid paint composition, an inorganic filler or an inorganic precursor is added to an organic resin such as an acrylic resin or the like to form a hard coat layer on the surface of a substrate. However, at this time, although abrasion resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D161/28C09D163/00C09D183/00
CPCC08K5/34922C08L33/066C08L43/04C08L61/28C09D133/066C08L63/00C08L79/02C09D133/12
Inventor 姜润奉朴坪椮
Owner AKZO NOBEL COATINGS INT BV
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