JPH09279062A - Water-resistant long phosphorescent decorative coating material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a water-resistant long phosphorescent decorative coating material by dispersing a strontium aluminate-based long-time-emitting phosphorescent pigment contg. no radioactive element in a soln., etc., of a water-resistant binder [e. g. a thermoplastic resin (including a rubber)]. SOLUTION: Luminova or Kipras is used as the strontium aluminate-based long-time-emitting phosphorescent pigment and is mixed into a water-resistant binder, the amt. of the pigment mixed being 3-80wt.% of the binder. A thermoplastic resin (including a rubber) hardly moisture-permeable and excellent in gas barrier properties and ultraviolet transmission (e.g. a polyacrylic ester or a styrene-butadiene rubber) is used in the form of a soln. as the binder, and a curable resin (e.g. an epoxy resin) which is liq. or in the form of a soln. is also used as the binder. Since the pigment in contact with water slowly loses its light-emitting capability, it is converted into a coating material by using the binder to enhance its water resistance. A decorative article prepd. by using the coating material emits light with excellent visibility for at least 6hr when exposed to light of a fluorescent lamp (15W, at a distance of 30cm) for 1hr.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applicable to various ornaments such as aquariums, interiors, gardening and accessories, such as pebbles,
Water plants, flowers, trees, figurines (turtles, rocks, vases, basins, glasses, bottles, etc.), key chains, etc., Strontium aluminate-based long-time luminous pigment (hereinafter referred to as long luminous pigment).
Is a solvent-soluble product of a thermoplastic resin (rubber-containing) that has excellent gas barrier properties that do not allow moisture to easily pass through and excellent ultraviolet ray transparency, or
Water-resistant, long-lasting phosphorescent paint for the purpose of producing a decorative coating (hereinafter, referred to as water-resistant long-lasting decorative coating) that is kneaded with a curable resin liquid product or a solvent-soluble product fastening material (hereinafter referred to as water-resistant fastening material) It relates to decorative paint.

[0002]

2. Description of the Related Art Long-lasting phosphorescent ornaments conventionally used for ornamental fish tank ornaments and the like include zinc sulfide-based compounds, but the emission time is as short as 20 minutes or less and the emission is weak. The mainstream was a mixture of radioactive materials such as radium for the purpose of extending the light time.

However, the conventional method not only contains a radioactive substance but also has a light emission time of about 50 minutes and cannot be used outdoors and may adversely affect the human body, environment and breeding and breeding organisms. It was

[0004]

SUMMARY OF THE INVENTION In view of these circumstances, the present invention intends to provide a water-resistant long-lived phosphorescent decorative coating which emphasizes safety and light emission over a long period of time of 6 to 8 hours. is there.

Furthermore, the present invention is intended to provide a water-resistant long-lasting phosphorescent decorative paint which can be used outdoors for decoration.

[0006]

The present invention relates to a long-light-emitting strontium aluminate-based long-time light-emitting phosphorescent pigment "Luminova" (manufactured by Nemoto Special Chemical Co., Ltd.) or "Kiplus" as a long-lasting phosphorescent pigment. (Made by Next Eye) is 3 to 80% by weight, preferably 10 to the water resistant fastening material.
˜70 w% is added and kneaded to prepare a water-resistant long-lasting phosphorescent paint having excellent water resistance.

Polyacrylic acid ester (PMA), polyethylene acrylic acid ester copolymer (EEA), polystyrene (PS), polyvinyl chloride (PVC), polyurethane as the thermoplastic resin (rubber-containing) of the water resistant fastening material of the present invention (PU), styrene butadiene rubber (SBR)
The curable resin is heat cured (baked paint),
It can be either room temperature cured, epoxy resin (EP), methyl methacrylate (MMA), unsaturated polyester (P
EM), isocyanate (DI), phenol (P
h), melamine (M), guanamine (G), etc. These water-resistant fastening materials can be used alone or in combination, and are water-resistant long-lasting phosphorescent decorative coatings which are formed into films on various ornaments by painting or the like.

The long-lived phosphorescent pigment of the present invention gradually decreases its light-emitting ability when it comes into contact with water, so that it is made into a paint with a water-resistant fastening material that hardly permeates moisture to prepare a water-resistant long-lived phosphorescent decorative paint excellent in water resistance. Is.

[0009]

The water resistant phosphorescent decorative coating material according to the present invention is
We make water-resistant long-lasting phosphorescent paint by kneading Strontium aluminate long-lasting long-lasting phosphorescent pigment with water-resistant fastening material to various ornaments such as aquarium, indoor interior, horticulture, and accelery.
It is a water-resistant long-lasting phosphorescent decorative paint intended to produce a water-resistant long-lasting phosphorescent decorative product by coating it on various ornaments.

[0010]

[Example 1] As a thermoplastic resin (rubber-containing) of a water resistant fastening material, polymethacrylate (PMMA) was dissolved in toluene to a solid content of 40%. Nate-based "Luminova" (manufactured by Nemoto Special Chemical Co., Ltd.) 10% by weight, pigment dispersion settling prevention "BYK240S" (manufactured by BYK Chemie)
0.5w%, defoaming leveling agent "BYK320" (manufactured by BYK Chemie) 0.2w% were added, and 3 with a high speed despar
After mixing for 0 minutes, a uniform and stable pale yellow water-resistant long-lasting phosphorescent decorative coating was prepared. By using this water-resistant long-lasting phosphorescent paint as a colored paint for various ornaments such as back screens for water tanks, indoor interiors, garden pots for gardening, and accessories, by irradiating it with a fluorescent lamp (15W, distance of 30 cm) for 1 hour. , I was able to recognize the excellent luminous extinction for more than 6 hours.

[0011]

[Example 2] As a curable resin for a water resistant fastening material, a solventless liquid epoxy resin main agent "Dytosizer DT-377"
(Manufactured by Daito Sangyo Co., Ltd.), 30w long phosphorescent pigment "Luminova"
% And pigment dispersion settling-prevented "BYK240S" (manufactured by BYK Chemie) 0.5 w%, antifoam leveling agent "BY"
K320 "(manufactured by Big Chemie) is added in an amount of 0.2 w%,
The mixture was mixed with Despar for 30 minutes to prepare a uniform and stable pale yellow base compound. To 100 parts by weight of this main agent, 35 parts by weight of a room temperature curing type amine curing agent "Daitoclaar J-5166" was added and mixed, and then a glass surface paint for water tanks, a metal surface paint for key chains, a ceramic paint, etc. Was used as a solvent-free paint, and was cured at room temperature to prepare various decorative articles. This water-resistant long-lasting phosphorescent ornament is used for aquariums, indoor interiors, gardening,
Can be used for accessories etc., fluorescent lamp (15W, 30c
By irradiating for 1 hour at a distance of m), it was possible to recognize the light emission of excellent visual acuity for 6 hours or more. Further, this epoxy resin material is also excellent in ultraviolet ray permeability, moisture permeation resistance, and water resistance, and its ability is not deteriorated even in direct contact with water.

Claims (1)

[Claims] 1. A strontium aluminate-based long-time light-emitting phosphorescent pigment containing no radioactive element, which is used as a fastening material for a thermoplastic resin (rubber-containing) having excellent gas barrier properties that hardly transmit moisture and ultraviolet ray transparency. A water-resistant long-lived phosphorescent decorative coating characterized by being dispersed in a solvent-soluble product, a curable resin liquid product, or a solvent-soluble product to produce a decorative paint having long-time light emission properties.