JPH02157147A - Production of agate-like resin article - Google Patents

Abstract

PURPOSE:To stably obtain the resin article having stereoscopic and delicate agate-like patterns and excellent heat resistance, hot water resistance and fire retardance by mixing a specific material for pattering with a specific curably compsn. for stock and molding and curing the mixture in a mold. CONSTITUTION:The material (b) for patterning is mixed with the under-mentioned curable compsn. (a) for stock and the mixture is injected or placed in the mold and is molded and cured to form the agate-like resin article having stripe-like or cloudy patterns. (a) The inorg. filler-contg. curable compsn. (I) having >=70% total ray transmittance of the sheet of 0.3mm thickness of the cured matter. (b) The half-cured resin compsn. (II) which is obtd. by mixing and dispersing the resin particles (B) having >=70% total ray transmittance when made into a sheet of 0.3mm thickness and the particle size ranging 100 to 800 micron with and into the inorg. filler-contg. curable compsn. (A) having the total ray transmittance of the sheet of 0.3mm thickness of the cure matter ranging 10 to 60% and has the viscosity at 30 deg.C ranging 20,000 to 80,000 poises.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a method for producing an agate-like resin article with an excellent design that can be used as housing equipment or building materials that have excellent heat resistance and flame retardancy, especially hot water resistance. It is related to.

(Prior Art) Conventionally, as a method for obtaining agate-like artificial stone, in a fabric material made of a transparent or translucent curable resin composition,
A method of pre-mixing resin materials for LC patterning with different tones or transparency (mixing immediately before injection into the J mold, injecting or placing this into the mold and molding and hardening, or adding the above two into the mold) There was a method in which two materials were arranged in a desired pattern and then molded and cured.

However, the resin materials for patterning used in these methods are simply made by adding fillers and colorants to the resin composition for fabrics to change the color tone and transparency, and are different from the resin compositions for fabrics. The compatibility and diffusivity of the material were so good that the agate-like streaks or cloud-like patterns blurred and became astronomical stone-like. In addition, due to the difference in specific gravity between the two, there is a drawback that the pattern (pu) settles and the pattern becomes uneven, making it difficult to obtain a stable agate-like resin product with this conventional method. There wasn't.

As a way to improve these problems, methods have been proposed in which the viscosity is increased by various methods such as adding fibrous substances to the resin material for patterning to improve its compatibility and diffusibility with the resin composition for fabrics. ing.

These methods make it easier to create a clear agate-like pattern, but a small amount of the resin for creating the pattern dissolves into the fabric itself, making the entire product unclear, or conversely, the blocks for creating the pattern may look unnatural. However, it was not possible to consistently obtain a design that was sufficient in terms of design. Moreover, because the mold surface and the patterning resin flow as they come into direct contact, the patterning resin adheres to the mold surface and covers the surface, resulting in a flat design that lacks three-dimensionality and depth. There were still major shortcomings.

Furthermore, even if it is ideally formed, the resulting pattern will simply be a different color and transparency from the fabric, and will lack the truly complex and subtle taste of natural stone. Ta.

(Problems to be Solved by the Invention) In view of the above circumstances, the present invention has a truly three-dimensional and subtle agate-like pattern, and has excellent practical physical properties such as heat resistance, hot water resistance, and flame retardancy. This was done for the purpose of obtaining resin articles by a method with improved production stability.

(Means and effects for solving the problem) The present inventors have developed a semi-cured resin composition containing resin particles having a specific transparency and a specific particle size into a specific filler-containing curable composition. The present invention has been completed based on the discovery that the above object can be achieved by mixing and dispersing the mixture into a mold and then injecting or placing the mixture into a mold and molding and hardening the mixture.

That is, the present invention produces an agate-like resin article having a streak-like or cloud-like pattern by mixing a patterning material into a curable composition for fabric, injecting or placing it into a mold, and molding and curing it. In this process, an inorganic filler-containing curable composition (I) having a total light transmittance of 70% or more in a 0.3 mm thick sheet (I) of the cured product is used as a curable composition for fabrics. As a material for dispensing, a 0.3 mm thick sheet of the inorganic filler-containing curable composition (A) whose cured product has a total light transmittance of 10 to 60%. 30 obtained by curing the curable composition (A) after mixing and dispersing resin particles (B) having a total light transmittance of 70% or more and a particle size in the range of 100 to 800 microns. The present invention relates to a method for producing an agate-like resin article characterized by using a semi-cured resin composition (II) having a viscosity in the range of 20,000 to 80,000 poise at ℃.

This invention will be described in detail below.

The method for manufacturing the agate-like resin article of the present invention is as follows: (1) The curable compound and the inorganic filler are selected so that the total light transmittance of the cured product in a 0.3 mm thick sheet is 70% or more. , to which various additives such as colorants, surfactants, and ultraviolet absorbers are added as necessary, a curing agent and an accelerator as necessary are added and mixed to prepare 1 q of curable composition (I) for fabrics. (2) Select the curable compound and inorganic filler so that the total light transmittance of the cured product in a 0.3 m thick sheet is 10 to 60%, and add J to them as necessary. , a curing agent and, if necessary, an accelerator are added and mixed to a mixture of various additives such as colorants, surfactants, and ultraviolet absorbers.
A step of obtaining a curable composition for patterning (A>; and ■ 0.
The total light transmittance is 7 when it is made into a 3mm thick sheet.
After mixing and dispersing the resin particles (B) having a particle size of 0% or more and having a particle size in the range of 100 to 1,800 microns into the curable composition for patterning (A) obtained in step (2), the resin particles (B) are heated at a constant temperature. curing the curable composition (A) by heating to obtain a semi-cured resin composition (H) for patterning having a viscosity in the range of 20,000 to 80,000 voids at 30°C; , ■ Mix the semi-cured resin composition (II) for patterning obtained in step (■) into the curable composition (I) for fabrics obtained in step (■) in an appropriate ratio to prepare a curable composition for fabrics. (I) A step of dispersing the semi-cured resin composition for patterning into the pattern using a stirrer or the like so that it is dispersed and distributed in an appropriate density and size in the form of streaks or clouds; It consists of the steps of injecting or placing the patterned mixture into a mold and curing it by heating or heating and pressure molding to obtain an agate-like resin article.

The molded and cured product may become a product as it is after being demolded, or the surface may be sanded to become an agate-like resin article.

Depending on the method of mixing and dispersing the inorganic filler, the curable composition for fabrics (i>) and the curable composition for patterning (A) can be used as a casting mixture with a high filler content and low viscosity. Moreover, it can also be made into a fresh bread-like mixture with excellent fluidity when pressurized.

In the present invention, the curable composition (I) and the curable composition (
The curable compound used in A> may be one that can be cured by heating with a curing agent such as a radical-containing initiator, and should be curable, high filling/low viscosity, heat resistance/weather resistance, resistance to discoloration, and resistance to hot water. Considering flame retardancy and transparency of the cured product, a radically polymerizable monopolymer containing an aliphatic polyfunctional (meth)acrylate and an aromatic vinyl compound as essential components is desirable.

The aliphatic polyfunctional (meth)acrylates preferably used in the present invention include ethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate-1 to
Butylene glycol di(meth)acrylate 1~, neopentyl glycol di(meth)acrylate, glycerin 1~(meth)acrylate 1~. 1 to rimedylolpropane tri(meth)acrylate, dipentaerythritol hekiza(meth)acrylate, etc.

Examples of aromatic vinyl compounds include styrene, α-methylstyrene, p-methylstyrene, and divinylbenzene.

The ratio of aliphatic polyfunctional (meth)acrylate to aromatic vinyl compound is 20 to 80% by weight for the former and 80 to 20% by weight for the latter, although the greater the amount of aromatic vinyl compound, the greater the transparency of the cured product. It is preferable to adjust within the range of .

In addition to the above two types, the radically polymerizable monomers in the present invention include (meth)acrylates other than aliphatic polyfunctional (meth)acrylates such as methyl (meth)acrylate and isobutyl meth)acrylate. Various (meta)
Acrylate monomers can be used, including various macromonomers, unsaturated polyester oligomers, fumaric acid esters,
Other monomers and oligomers such as maleimides can also be used.

Furthermore, a thermoplastic polymer may be blended with the monomer in order to reduce shrinkage during molding and hardening, prevent cracks in the product, and improve surface smoothness. Examples of thermoplastic polymers include (meth)acrylic polymers such as polymethylmethacrylate-1, (meth)acrylic-styrene copolymers, polystyrene, polyvinyl acetate, styrene-vinyl acetate copolymers, polyvinyl chloride, Conventionally known low shrinkage polymers such as polybutadiene, polyethylene, polycaprolactam, and saturated polyester can be used alone or in combination. When thermoplastic polymers for low shrinkage are blended in large amounts, the viscosity of the curable compound increases, making it difficult to obtain a composition suitable for casting with a high filler content, or reducing the transparency and heat resistance of the product. You may end up only getting something that is inferior in terms of sex. Therefore, it is preferable to use the thermoplastic polymer for low shrinkage in as small a quantity as possible, preferably within a range of 40 parts by weight or less, more preferably from 5 to 30 parts by weight, based on 100 parts by weight of the monomer.

The inorganic filler to be mixed with the above-mentioned curable compound has a particle size of 80 microns or less, which cannot be discerned with the naked eye, and is preferably highly transparent, white, and flame retardant. Hydrates of metal oxides are used. Examples of hydrated metal oxides include aluminum hydroxide, magnesium hydroxide, and calcium hydroxide. Among these, it is preferable to use a hydrated metal oxide having an average particle size of 5 microns or less, as this results in a beautiful product with particularly good surface condition and particularly excellent hot water resistance. Further, it is particularly preferable that the whiteness is 90% or more.

In this case as well, the hydration of the metal oxide is limited to the extent that it does not adversely affect the flame retardancy of the product from which inorganic fillers such as silica, alumina, quartz, calcium silicate, calcium carbonate, talc, and clay can be obtained. It can be used in place of a part of something.

The resin particles (B) used in the semi-cured resin composition for patterning (II) may be either natural or synthetic, but from the viewpoint of the design appearance of the resulting article, curable particles located around the resin particles (B) may be used. A cured product of composition (A) should be more transparent, and in order to prevent sedimentation and make the pattern uniform, curable composition (I) or a product of the same type as curable composition (A) should be used. Crushed resin particles obtained by crushing a cured curable composition that is uncolored or lightly colored are desirable. Resin particles (
It is preferable that the particle size of B) is distributed in the range of 100 to 800 microns, since it provides appropriate transparency and surface reflection in appearance. If there are too many particles smaller than 100 microns, the handle will look flat and have poor design;
If it exceeds 0 micron, it will deviate from the agate-like feel and become an unnatural pattern, resulting in an inferior design.

Examples of the curing agent used when curing the curable composition (I) for fabrics include penzoyl peroxide, cyclohexanone peroxide, methyl ethyl ketone peroxide, and bis(4t-butylcyclohexyl) peroxide. carbonate, t-butylperoxybenzoe-1, t-butylperoxyoctoate-1, etc. are used.

Further, the curing agent can be used alone or together with an organic amine or a polyvalent metal salt as an accelerator.

In order to semi-cure the curable composition (A) for patterning, and finally fully cure it after mixing with the curable composition (I) for fabrics, there are things that cannot be done with just one type of curing agent. However, the conditions for stopping the reaction in a semi-cured state are narrow and difficult. Therefore, in order to stably obtain a semi-cured state, a medium- to low-temperature decomposition curing agent and a high-temperature decomposition curing agent are used together, and the curing reaction when obtaining the semi-cured resin composition (■) is carried out at a temperature below 70'C. - It is desirable to carry out the curing reaction at a low temperature and to carry out the curing reaction when molding and curing after mixing with the curable composition (I>) at a high temperature exceeding 70°C.

Examples of the semi-curing curing agent used for the first stage semi-curing include t-butyl peroxy pivalate, diisopropyl peroxy dicarbonate, etc.
It is best to choose something that gradually decomposes at medium to low temperatures around 0°C. In addition, 0.1 to the curable compound in the curable composition (A)
The composition (A) can be stably semi-cured to a predetermined viscosity range by using an amount of 1% to 0.2 ffi.

On the other hand, as a curing agent for complete curing for molding and curing after mixing with the curable composition (I), examples thereof include benzoyl peroxide, cyclohexanone peroxide, methyl ethyl ketone peroxide, t-butyl peroxybenzoate, etc. at 70°C. It is preferable to use a high-temperature decomposition hardening agent that decomposes at higher temperatures.

The semi-cured resin composition (II) for patterning is one whose pull resistance is in the range of 20.000 to 80.000 poise at 30°C as measured with a Brookfield rotational viscometer. If it is less than 20,000 poise, the patterning composition will be easily dissolved and dispersed in the fabric composition, making it impossible to form a good streak-like or cloud-like pattern.

In addition, if it exceeds 80,000 poise, it becomes difficult to easily disperse in the curable composition for fabrics (I>), and even after dispersion, there will be no subtle changes in the shape or the surrounding area, such as natural blurring.
The desired agate-like resin article cannot be obtained.

In order to specifically carry out the present invention, it is necessary to use a common curable composition (I) for fabrics, a curable composition for producing resin particles (B), and a curable composition for patterning (A). For example, aliphatic polyfunctional (meth)acrylate alone or other (
Mixture with meth)acrylate 80-20% by weight, preferably 70-30% by weight, aromatic vinyl compound 20-8%
A monomer mixture containing 0% by weight, preferably 30 to 70% by weight is prepared, and 100 to 800 parts by weight of metal oxide hydrate is dispersed in 100 parts by weight of this mixture. .

At this time, the metal oxide hydrate is treated with a silane coupling agent in advance, or the amount is equivalent to 0.1 to 2.0% based on the weight of the metal oxide hydrate used. By dissolving or dispersing the silane coupling agent in the monomer mixture and then using the metal oxide hydrate, the water resistance of the resulting product can be improved. Furthermore, various coloring agents can be added as necessary to change the color tone.

In addition to the metal oxide hydrate added to the monomer mixture, the curable composition for fabrics (I) and the curable composition for producing resin particles (B) may contain these as necessary. Add a small amount of coloring agent to the extent that it does not significantly impede the transparency of the cured product,
It is preferable to add a necessary amount of a coloring agent to the curable composition (A) for patterning, in addition to the purpose of coloring, to reduce transparency.

As a dispersion method for dispersing the semi-cured resin composition (II) for patterning into the curable composition (I) for fabrics, propeller-type low-speed stirring is used to prepare a low-viscosity mixture for casting. A kneader or anchor-type low-speed mixer may be used, and a low-speed, powerful kneader such as a kneader is suitable for obtaining a dough-like mixture for press molding.

The mixture thus obtained is injected, press-fitted or placed into a mold, and then cast or press-molded into a product.

In order for the product to be an agate-like resin article with more three-dimensional depth, it is desirable that the resin particles (B) have a total light transmittance of 70% or more when formed into a sheet with a thickness of 0.3M. .

In addition, the curable composition (I) for fabrics should preferably have a cured product with a transparency comparable to that of the resin particles (B), and the total light transmittance of a sheet with a thickness of 0.3 mm. It is necessary that it be 70% or more.

When the translucency is less than 70%, the resulting product lacks three-dimensional depth, and the pattern deep inside cannot be seen three-dimensionally, resulting in low design value.

On the other hand, the curable composition for patterning (A>) needs to be more opaque than the internal resin particles (B) and the surrounding fabric composition (I), and the cured product has a thickness of 0.3 cm. A sheet having a total light transmittance of 10 to 60%, preferably 30 to 50% can be used.

When the resin particles (B>) are mixed and dispersed in the curable composition for patterning (A), the mixing ratio of the two is 10% of the composition (A).
The resin particles (B) are preferably in the range of 10 to 100 parts by weight relative to 0 parts by weight, and in particular 20 to 100 parts by weight to obtain an appearance similar to agate.
~50 parts by weight is most suitable.

In addition, the mixing ratio of the semi-cured resin composition (I[) obtained by semi-curing the mixture of the above-mentioned curable composition (A) and resin particles (B) and the fabric composition (I) is as follows: The semi-cured resin composition (■) is preferably in the range of 5 to 50 parts by weight based on the weight part of IMOO, and in particular, in order to obtain an appearance similar to agate, 1
0 to 30 parts by weight is most suitable.

(Effects of the Invention) The resin molded product obtained by the method of the present invention is flame retardant, does not change in appearance such as whitening or yellowing even when immersed in boiling water for a long time, and has a high heat distortion temperature. It is an agate-like resin product with excellent design that gives excellent results in tobacco resistance tests and other contamination tests, and is safe even in areas where it has traditionally been difficult to use due to lack of heat resistance and hot water resistance, such as bathtubs and kitchen counters. It can be used with care.

Further, according to the method of the present invention, a three-dimensional and deep agate-like pattern can be easily produced on a resin molded product with good production stability.

(Examples) Examples will be described in more detail below, but these do not represent the entirety of the present invention.

[Manufacture of resin particles (B)]

Production Example 1 25 parts by weight of trimethylolpropane trimethacrylate, 75 parts by weight of styrene, and a silane coupling agent (K
BM-503, manufactured by Shin-Etsu Chemical ■] 0.5 part by weight was mixed,
A monomer mixture was prepared. Next, aluminum hydroxide [Hisilite 1-1-320. 200 parts by weight (average particle size 3.5 microns, manufactured by Showa Light Metal) were kneaded using a high-speed stirrer, and then the hardening agent Parryoku Dox PX-
Add 0.8 parts by weight of 16 [bis(4-t-butylcyclohexyl) peroxydicarbonate, manufactured by Nihon Koyaku ■, 10-hour half-life temperature 44°C], and after mixing, defoaming under reduced pressure to obtain a mixture for producing resin particles. Obtained.

Next, this mixture was divided into 200 x 200 x 50 m
The mixture was poured into a casting mold No. m and cured at 70°C, which cured in 30 minutes, and was further post-cured at 120°C for 2 hours. The cured product was milky white and had high transparency, scattering light beautifully, and had a total light transmittance of 86% on a 0.3 m thick plate.

This resin was pulverized with a hammer mill, coarse particles were removed with a 26-mesh standard sieve, and fine particles were removed with an 80-mesh standard sieve to collect particles of 180 to 600 microns to obtain resin particles (1).

Manufacturing example 2 Before adding the hardener, add edge toner for acrylic resin (AT-85).
7. Dainichiseika Kogyo ■! A cured product was obtained in the same manner as in Production Example 1 except that 0.1 part by weight (Fit) was added. This cured product was colored pale green, transparent and beautiful, and the total light transmittance of the 0.3 tta plate was 84%.

This cured product was crushed and classified in the same manner as in Production Example 1.
One resin particle (2) of 0 to 600 microns was obtained.

[Production of semi-cured resin composition (II) for patterning] Production example 3 30 parts by weight of trimethylolpropane trimethacrylate, 70 parts by weight of styrene, and a silane coupling agent (K
BIVI-503, manufactured by Shin-Etsu Chemical Co., Ltd.] 0.5 parts by weight were mixed to prepare a monomer mixture. Next, 300 parts by weight of aluminum hydroxide [Hisilite H-320, average particle size 3.5 microns, manufactured by Showa Light Metal ■] and a coloring agent of mortar toner for acrylic resin (AT-3, Dainichiseika Kogyo Kogyo Co., Ltd.) were added to this mixed solution. ■
2.0 parts by weight of the product (manufactured by Mimaki Co., Ltd.) were kneaded using a high-speed stirrer.

Then, the curing agent t-butyl peroxybivallate (P-
70, Manufactured by Nouri ■, a 10-hour half-life temperature 56℃)
After adding 0.15 parts by weight, the resin particles obtained in Production Example 1 (
1) was added, and the mixture was heated to 60° C. while stirring at low speed, maintained for about 1 hour, and then cooled.

The obtained viscous liquid had a viscosity of 15.0 at 30'C.
00 poise, and was a stable semi-cured product with resin particles (1) supported inside. To this semi-cured product, add the curing agent t-butylperoxyoctoate-1 [Barbdel 01].
Add 0.8 parts by weight of Nippon Oil & Fats ■ and mix at 60°C.
Kneading was continued for 0 minutes to obtain a semi-cured resin composition (1) for patterning having a viscosity of 32,000 poise at 30°C.

Note that the cured product that was sufficiently cured without adding resin particles (1) was white and translucent, and the total light transmittance of the plate with a thickness of 0.3 mm was 38%.

Production Example 4 In Production Example 3, a monomer mixture consisting of 1 to 25 parts by weight of trimethylolpropane to remethacrylate, 1 to 30 parts by weight of methyl methacrylate, and 45 parts by weight of styrene was used, and a green toner (AT857, Dainichiseika Chemical Industry■
using 0.3 parts by weight of white powder) in combination with
Resin particles (2) obtained in Production Example 2 were used instead of resin particles (1).
), t-butyl peroxy off 1 ~ knee 1 ~ time of crosstalk after addition 1 was set to 40 minutes in the same manner as in Production Example 3, and a green semi-cured resin with a viscosity of 71,000 voices at 30°C was prepared. Composition (2) was obtained.

Note that the cured product that was sufficiently cured without adding resin particles (2) was green and semitransparent, and the total light transmittance of the plate with a thickness of 0.3 m was 33%.

Example 1 1-Tumethylolpropane trimethacrylate 3011
parts, 70 parts by weight of styrene and a silane coupling agent (
0.5 part by weight of KBM-503 (manufactured by Shin-Etsu Chemical) was mixed to prepare a monomer mixture. Next, 300 parts by weight of aluminum hydroxide (Hisilite H-320, average particle size 3.5 microns, manufactured by Showa Light Metal) was kneaded into this mixed solution using a high-speed stirrer, and then the hardening agent T-Petite was kneaded. Add 0.8 parts by weight of luperoxyoctoate (barbutyl 01 manufactured by NOF), mix and foam under reduced pressure to form a curable composition for fabrics (
1) was obtained. The viscosity of this curable composition for dough (1) was 10 voices at a liquid temperature of 30°C.

In addition, this curable composition for fabric (1) is cured to a thickness of 0.
．． When made into a 3mm plate, the total light transmittance of the plate was 82%.
Met.

Next, 20 parts by weight of the semi-cured resin composition (1) for patterning obtained in Production Example 3 was added to this curable composition for fabrics (11,100 parts by weight) and mixed with a propeller-type low-speed stirrer. The curable resin composition (1) is formed into a small cloud of the curable composition for fabrics (
1) After confirming that the mixture was dispersed, stirring was stopped to obtain a mixture for casting.

This mixture was poured into a casting mold of 1000 x 2000 x 13 mm and cured at 80°C, cured in 20 minutes, and further cured at 120°C for 2 hours.

The obtained molded product has slightly opaque white amorphous clouds dotted within the milky white dough with relatively high transparency, and appears to be layered. Inside was an agate-like resin article with excellent design, with highly transparent particles that subtly transmitted and scattered light. In addition, this molded product has a thickness of 6
Even when cut to M, the thickness is 13In.
An excellent agate-like pattern similar to that of In was recognized.
CQ Example 2 30 parts by weight of trimethylolpropane trimethacrylate, 50 parts by weight of styrene, 20 parts by weight of borisdyrene, and a silane coupling agent (KBM503, manufactured by Shin-Etsu Chemical)
0.5 part by weight was mixed and dissolved to obtain a monomer mixture. next,
Aluminum hydroxide [hysilite/l-
1-320, average particle size 3.5 microns, manufactured by Showa Light Metal ■] were kneaded using a high-speed stirrer, and then,
Colorant yellow toner for acrylic resin (AT-509,
Add 0.2 parts by weight of Dainichiseika Kagyo ■@l) and 0.8 parts by weight of t-butyl peroxybenzoate (Perbutyl Z, manufactured by NOF ■) as a hardening agent, and knead in a kneader to form fresh bread. 1 l of curable composition for fabrics (2).

When this curable composition for fabric (2) was press-molded into a 0.3 m thick plate, the total light transmittance of the plate was 75%.
Met.

Next, 25 parts by weight of the semi-cured resin composition (2) for patterning obtained in Production Example 4 was added to 100 parts by weight of this curable composition (2) for fabrics, and kneaded in a kneader. After confirming that the streaks and clouds were dispersed, mixing was stopped, and a molding material for press molding was obtained.

This molding material was put into a flat molding mold (cavity size: 300 x 30 Q x 6 #) heated to 120°C, heated under pressure for 5 minutes, and then taken out.

The resulting molded product has slightly opaque green streaks and clouds distributed within the swirly yellow translucent fabric, and the green patterned material has a transparency that allows light to pass through and scatter slightly. It was an agate-like resin article with excellent design and containing particles with a high degree of oxidation.

Claims (1)

[Claims] 1. An agate-like resin article having a streak-like or cloud-like pattern by mixing a patterning material into a curable composition for fabrics, injecting or placing the mixture into a mold, and molding and curing the mixture. When manufacturing a pattern, a curable composition containing an inorganic filler (I) having a total light transmittance of 70% or more in a 0.3 mm thick sheet of the cured product was used as a curable composition for fabric. As a material for dispensing, the total light transmittance of a 0.3 mm thick sheet of the cured product is 10 to 6.
Curable composition (A) containing an inorganic filler in the range of 0%
The curable composition ( The viscosity at 30°C obtained by curing A) is 20
A method for producing an agate-like resin article, characterized by using a semi-cured resin composition (II) having a poise in the range of ,000 to 80,000 poise. 2. The curable composition (I) is a radically polymerizable monomer containing a polyfunctional (meth)acrylate and an aromatic vinyl compound as essential components, and a hydrate of a metal oxide with an average particle size of 5 microns or less. The method for producing an agate-like resin article according to claim 1, wherein the agate-like resin article is mixed and dispersed. 3. The agate-like resin according to claim 1, wherein the resin in the semi-cured resin composition (II) is a crosslinked polymer of a monomer mixture containing a polyfunctional (meth)acrylate and an aromatic vinyl monomer as essential components. The method of manufacturing the article. 4. As a curing agent for curing the curable composition (A), a medium- to low-temperature decomposition curing agent and a high-temperature decomposition curing agent are used, and the curing reaction is carried out at 70°C to obtain the semi-cured resin composition (II). The agate-like resin according to claim 1, wherein the curing reaction is carried out at a medium to low temperature as described below, and the curing reaction during molding and curing after mixing the semi-cured resin composition (II) with the resin composition (I) is carried out at a high temperature exceeding 70°C. The method of manufacturing the article. 5. The method for producing an agate-like resin article according to claim 1, wherein the particle size of the inorganic filler contained in the curable composition (I) and the curable composition (A) is 80 microns or less.