UV-curable colored paint composition

A technology of colored coatings and compositions, applied in the field of UV curable colored coating compositions, which can solve the problems of energy consumption, time-consuming, semi-drying, etc., and achieve the effects of high production efficiency, low cost, and low energy consumption

Active Publication Date: 2010-02-24

JIANGSU KUANGSHUN PHOTOSENSITIVITY NEW MATERIAL

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AI-Extracted Technical Summary

Problems solved by technology

[0009] The coating method of the above-mentioned two-coat or three-coat type not only consumes energy, is time-consuming, requires a large production space, and has disadvantages such as high cost

Therefore, the industry hopes to develop a coating composition that can achieve both aesthetics and performance by one-time coating. For example, Taiwan Patent No. I290566 discloses a pearl paint ultraviolet coating composition for one-time spraying. A beautiful appearance can be obtained by one-time construction, but it is limited to the use of translucent pearlescent paint. If it is changed to non-transparent ...

Method used

Component (d) thermoplastic acrylic resin used in the present invention, the main effect is to increase the adhesion of coating film and base material and prevent coating film from cracking, because coating film can produce high shrinkage stress after UV curing, it is easy to cause Phenomena such as warping and cracking also have adverse effects on adhesion. Adding a thermoplastic acrylic resin with a higher glass transition temperature (Tg) to the coating can adjust the viscosity of the coating, and at the same time provide better adhesion of the coating film and speed up...

Abstract

The invention relates to a UV-curable colored paint composition which comprises (a) a low polymer containing at least one unsaturated double bond; (b) a diluted monomer; (c) a light initiator; (d) thermoplastic acrylic resin; and (e) a pigment. The paint composition of the invention can be applied in a one-time construction mode to obtain high-performance coatings with rich colors. Compared with the traditional two-layer or three-layer application mode, the invention can provide high production efficiency, low energy consumption, low manufacturing cost and low possibility of generation of wastes.

Application Domain

Coatings

Technology Topic

ChemistryColourant +5

Image

Examples

Experimental program(12)

Example Embodiment

[0077] Example 1

[0078] Table 1

[0079]

[0080] Add the diluent (butyl acetate/toluene/ethylene glycol monobutyl ether = 2/2/1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ/cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0081] The physical test results are as follows:

[0082] The coating film forms a 12-20μm coating film

[0083] Adhesion of coating film and substrate: 100/100

[0084] Coating film hardness: ≥H

[0085] Film gloss: 65

[0086] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0087] Appearance: flat, with black semi-dull effect.

Example Embodiment

[0088] Example 2

[0089] Table 2

[0090]

[0091] Add the diluent (butyl acetate/toluene/ethylene glycol monobutyl ether = 2/2/1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ/cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0092] The results of physical testing are as follows:

[0093] The coating film forms a coating film of 10-15μm

[0094] Adhesion of coating film and substrate: 100/100

[0095] Coating film hardness: ≥H

[0096] Film gloss: 85

[0097] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0098] Appearance: flat, with pearl semi-gloss effect.

Example Embodiment

[0099] Example 3

[0100] table 3

[0101]

[0102] Add the diluent (butyl acetate/toluene/ethylene glycol monobutyl ether = 2/2/1 (volume ratio)) to the composition obtained above for about 10 seconds, and spray it on the plastic substrate with an air spray gun. Then, pre-bake for 5-10 minutes in an oven at 60℃, and then use a medium-pressure mercury lamp (800mJ/cm 2 ) Perform exposure. Then, the substrate with the coating film after the exposure is tested for physical properties.

[0103] The results of physical testing are as follows:

[0104] The coating film forms a 20-25μm coating film

[0105] Adhesion of coating film and substrate: 100/100

[0106] Coating film hardness: ≥HB

[0107] Film gloss: 90

[0108] Heat resistance of coating film: pass (no crack or peeling in appearance)

[0109] Appearance: flat, with blue full light effect.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Increase productivity
low energy consumption

UV-curable colored paint composition

A technology of colored coatings and compositions, applied in the field of UV curable colored coating compositions, which can solve the problems of energy consumption, time-consuming, semi-drying, etc., and achieve the effects of high production efficiency, low cost, and low energy consumption

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

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Description & Claims & Application Information

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