JP2001294739A - Molding material showing stone-grain tone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding material which shows uniform distribution of a patterning material on a surface of a molded item, shows excellent moldability and gives a molded item having an excellent mechanical strength. SOLUTION: A molding material is obtained by adding a reinforcing fiber to a resin composition containing a thermoplastic resin, a low shrinkage agent, a patterning material having an average diameter of 0.01 to 10 mm, an inorganic filler and the like, wherein the patterning material is uniformly mixed in the molding material and not less than 5% of the reinforcing fiber remains as a strand.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding material used for obtaining a stone-like molded product having a uniform pattern material distribution over the details of the molded product and excellent in reproducibility of appearance, and the molding thereof. It is about goods. The molded product obtained by the present invention is used for kitchen counters, vanities, bathtubs, floor pans, various walls, and the like, in particular, for applications requiring appearance performance.

[0002]

2. Description of the Related Art Stone-grained molded products are obtained by compression molding a material obtained by impregnating glass fiber as necessary with a composition obtained by mixing various pattern materials, resins, fillers, etc. selected according to the required design properties. Manufactured. As a typical molding material containing a pattern material that has been developed and put into practical use as a material for compression molding, sheet molding compound (hereinafter referred to as SMC) [JP-B-2-44324] and bulk
Molding compound (BMC)
Is mentioned. However, since SMC requires a resin composition containing a pattern material to pass through a doctor blade having a very narrow clearance, there is a limitation on the pattern material to be used. In addition, since the pattern material is not evenly dispersed inside the material, a molded product obtained by molding the same has a drawback that the pattern material is localized and a remarkable flow pattern occurs. In order to reduce these drawbacks, in the case of patterned SMCs, a method is adopted in which the charging area is made as large as possible in order to reduce the flow distance of the material in the mold, but the effect is not sufficient. Was not. In the manufacturing process of BMC, the degree of destruction and unraveling of the glass fiber increases, so that the strength of the molded product decreases. Therefore, although it can be used for molded products that can be made thick, it is necessary to increase the thickness of the product, which increases the price and increases the wall thickness of thin molded products such as wall materials and waterproof pans. Difficult to use for something Also, since BMC is a bulk molding material, it is difficult to take a large charge area, and even if a wide charge pattern is made of a material stretched into a sheet with an extruder or the like, even if a wide charge pattern is made, the pin due to the internal bubbles Holes and nests are liable to be formed, and the defective molding rate is high.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves the drawbacks existing in the prior art, can use various pattern materials, has a uniform pattern material distribution on the surface of a molded product, is excellent in moldability, and has a good moldability. It is to provide a molding material having a high mechanical strength of the product.

[0004]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and as a result, have found that a composition such as a resin containing a pattern material for imparting a design property, a filler, etc. A molding material obtained by adding fibers to a patterned resin composition), in which the pattern material is evenly dispersed to the inside thereof,
And a molding material in which 5% or more of the fiber reinforcing agent is preferably left as a strand is obtained. By using this molding material, it was found that pattern unevenness during molding was extremely small, and that the distribution of the pattern material was uniform, excellent in reproducibility, and a high-strength molded product was obtained, and the present invention was completed. I came to.

That is, the present invention relates to (1) a resin composition containing a thermosetting resin, a low-shrinking agent, a pattern material having an average diameter in the range of 0.01 to 10 mm, an inorganic filler and the like, and a fiber reinforced material. The material is passed through a pair of mixing rollers rotating inwardly facing each other, and a molding material obtained by scraping the mixture with a scraping member, wherein the pattern material is evenly distributed inside the molding material. A fiber reinforcing material is added to a resin composition containing a dispersed molding material, (2) a thermosetting resin, a low-shrinking agent, a pattern material having an average diameter in the range of 0.01 to 10 mm, and an inorganic filler. (3) a molding material obtained in addition, wherein the pattern material is uniformly dispersed inside the molding material, and at least 5% of the added fiber reinforcement remains in the strand;
The molding material according to the above (1), wherein the resin composition is supplied onto a pair of mixing rollers by a shower tube or a slit tube,
(4) A sheet-like molding material obtained by dropping the molding material according to (1) or (2) above on a lower film disposed below, covering the upper surface of the film with an upper film, and then compressing the upper film. And (5) a molded article obtained by curing the molding material according to (1) to (4).

According to the molding material of the present invention, it is possible to obtain a molded article in which the occurrence of pattern unevenness during molding is extremely small, the distribution of the pattern material is uniform, and the reproducibility is excellent. This is because they are evenly dispersed inside. As a means of obtaining a material in which the pattern material is uniformly dispersed up to the inside of the molding material, a patterned resin composition and a fiber reinforcing material, etc., are supplied to a pair of mixing rollers that are arranged opposite to each other and rotate inward,
The method of mixing both when passing between rollers,
This is a very effective method, and without this method, the amount of strand (a fiber reinforcing material such as a glass fiber of 8 to 20 μm required for imparting sufficient strength to a molded product) is adjusted to 50 to 50% by a sizing agent. 600 bundles) remain in the molding material. The amount of the general molding material, that is, the fiber reinforcement, is 1 to 35 based on the total weight of the material.
%, The residual ratio of the strand required to impart sufficient strength to the molded product is 5% or more, preferably 10% or more, based on the amount of the fiber reinforcing material added. When the residual ratio of the strands is less than 5%, the strength of the molded product is not sufficiently obtained, and it is particularly difficult to form a thin molded product without any trouble. Also, knead the patterned resin composition and the like using a kneader, a planetary mixer, a universal mixer and the like usually used in the production of BMC, and finally add a reinforcing material such as glass fiber and knead for a short time. Even after the production of the material is finished, the pattern material is uniformly dispersed in the inside of the material, and a stone-like molding material having strength can be obtained.

When the molding material is molded, the molding material of the present invention is preferably in the form of a sheet. For this purpose, an extruder or other material extruded by an extruder can be used. More preferably, the mixed patterned resin composition and glass fiber are scraped off from the mixing roll, dropped on a lower film disposed below, and then covered with an upper film on the upper surface of the film, and then a wire mesh or the like. A sheet-shaped molding material obtained by compression with a roll or the like is most preferable in consideration of productivity of the material, workability at the time of molding, flexibility of a charge pattern, and the like. As a method of scraping the patterned resin composition and the fiber reinforcement mixed from the mixing roll, a method of using a pair of scraping rollers arranged with a gap below the mixing roller is most effective, A method of scraping with a doctor knife is also possible.

As described above, according to the present invention, the patterned resin composition and the fiber reinforcing material are supplied to a pair of premixing rollers which are arranged opposite to each other and rotate inward, and when passing between the rollers, the two are mixed. Although it is preferable to use a shower tube or a slit tube as a means for supplying the patterned resin composition to the premixing roll, the patterned resin composition is more uniformly applied on the roll, and as a result, the pattern material Can be obtained very well dispersed inside. The shower tube referred to here is a tube having a pitch of 1 to 10 mm and a pitch of 1 to 10 mm for uniformly supplying the patterned resin composition to the roll.
It is usually installed above two rolls rotating inward for mixing with pipes with 5-10 mm holes. The diameter of the shower tube itself is not particularly limited, but a diameter of 0.5 to 4 inches is appropriate, and any material can be used as long as the shower tube is not corroded or deteriorated by the patterned resin composition. However, stainless steel or iron is generally used.
When the patterned resin composition is sent to the shower tube, the hole diameter on the supply side of the patterned resin composition is reduced in order to alleviate the distribution of the discharge amount caused by the pressure loss difference between the supply side and the tip portion of the shower tube. It is preferable that the hole diameter is small and the hole diameter is increased toward the tip. Also, the shape of the hole in the shower tube need not be particularly limited, including a circle, an ellipse, etc., but it is necessary to at least make it larger than the particle diameter of the pattern material so that the pattern material is not clogged with the shower tube. . A slit tube can be used for the same purpose as a shower tube.

The slit tube is a tube having a continuous gap of 0.3 to 5 mm on the tube. For the same reason as the shower tube, the gap between the slits is narrow on the supply side of the patterned resin composition and is widened toward the tip. Is preferred. The same material as the shower tube can be used. Further, it is preferable to supply two shower tubes and slit tubes in opposite directions, that is, to supply the patterned resin composition in opposite directions. That is, even if the distribution of the patterned resin composition supplied on the two rolls for mixing is present, it is offset by both, and the patterned resin composition and the fiber reinforcing material are well and uniformly dispersed. This is because a material can be obtained.

[0010] The patterned resin composition used in the present invention comprises a pattern material for imparting a design property, a thermosetting resin represented by an unsaturated polyester resin or a vinyl ester, a copolymerizable monomer, a low shrinkage. Although it is a mixture of an agent, an inorganic filler, a curing agent, etc., a curing accelerator, an inhibitor, an internal mold release agent, a coloring pigment, a thickener, and the like can be added as necessary.

The pattern material used in the present invention for imparting design properties is ceramic, aluminum hydroxide crushed and colored, natural mica (mica) and its colored products, unsaturated polyester, vinyl ester, epoxy, Pulverized cured product obtained by adding a pigment to thermosetting resin such as acrylic, flaked and bead-shaped colored glass, aluminum foil or polyester film, etc. as it is or after being appropriately colored and cut, pulverized metal Etc. can be used. Further, the composition obtained by mixing the above thermosetting resin, an inorganic filler such as aluminum hydroxide or calcium carbonate, a pigment and the like in an appropriate ratio (and optionally adding a low shrinkage agent and the like) and then pulverizing, or Pattern materials manufactured by coloring after grinding can also be used. The shape of the pattern material is not particularly limited, and not only a flake shape but also various shapes obtained by pulverizing a solid can be used as they are. The size (particle diameter) of the pattern material is 0.0
A diameter of 1 to 10 mm is preferred. Pattern material particle size is 0.01
If it is less than mm, it is difficult to be recognized as a pattern material, and if a pattern material exceeding 10 mm is used, it becomes difficult to uniformly supply the patterned resin composition to the premixing roll, which also adversely affects the strength of the molded product. . A more preferable diameter of the pattern material is 0.1 to 5 mm. These pattern materials are usually 0.05 to 0.05 parts by weight based on 100 parts by weight of a combination of an unsaturated polyester resin, a monofunctional vinyl monomer and a low-shrinking agent (hereinafter referred to as “resin mixture”). Although 50 parts by weight can be added, it is preferably 0.1 to 20 parts in consideration of pattern development, economy, production efficiency, and the like.

As the thermosetting resin used in the present invention, an unsaturated polyester resin obtained by dissolving an unsaturated polyester in a copolymerizable unsaturated monomer or a vinyl ester obtained by dissolving a vinyl ester in a copolymerizable unsaturated monomer is used. A vinyl ester resin is preferable, and a radically polymerizable unsaturated group-containing monomer or oligomer can be used in combination.

The unsaturated polyester used in the present invention is:
It is synthesized by an addition reaction or a dehydration condensation reaction of an α, β-olefin unsaturated dicarboxylic acid or its anhydride with glycol. Saturated dicarboxylic acid, aromatic dicarboxylic acid or anhydride thereof, or dicyclopentadiene which reacts with carboxylic acid can also be used in combination. α,
Examples of β-olefinically unsaturated dicarboxylic acids include, for example, maleic acid, fumaric acid, itaconic acid, citraconic acid and anhydrides of these dicarboxylic acids. Examples of dicarboxylic acids used in combination with these α, β-olefin unsaturated dicarboxylic acids include, for example, adipic acid, sebacic acid, succinic acid, phthalic anhydride, orthophthalic acid, isophthalic acid, terephthalic acid, tetrahydrophthalic acid And tetrachlorophthalic acid. In the present invention, at least one of the following glycols can be used. As the diol, for example, alkanediol, oxaalkanediol, hydrogenated bisphenol A, diol obtained by adding ethylene oxide or propylene oxide to bisphenol A, hydrogenated product thereof, and the like are used. In addition, a monol or a triol may be used. Examples of alkanediols include, for example, ethylene glycol, 1,2-propylene glycol, 1,
3-propylene glycol, 1,3-butanediol,
1,4-butanediol, neopentyl glycol,
Examples thereof include 1,5-pentanediol, 1,6-hexanediol, and cyclohexanediol. Examples of the oxaalkanediol include diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and the like. Examples of the monol or triol used in combination with these glycols include octyl alcohol, oleyl alcohol, and trimethylolpropane. The synthesis of unsaturated polyester is generally performed under heating, and the reaction proceeds while removing by-produced water. In the present invention, the number average molecular weight is usually 800 to 10,000 and the ester acid value is 5
〜100 are used. In the production of the resin composition, the unsaturated polyester is usually used as an unsaturated polyester resin obtained by dissolving a copolymerizable monomer shown below. The unsaturated polyester resin is a resin mixture 100
When it is used as a weight part, it is usually added in an amount of 5 to 95 parts by weight based on the resin mixture.

As the vinyl ester, an epoxy resin having an epoxy group is reacted with an unsaturated-basic acid to obtain a vinyl ester resin. As the epoxy resin used for this reaction, a bisphenol-type epoxy resin or a novolak-type epoxy resin can be used. The vinyl ester resin is usually added in an amount of 5 to 95 parts by weight based on the resin mixture.

The copolymerizable monomer used in the present invention includes:
At least one monofunctional vinyl monomer is used. Monofunctional vinyl monomers include, for example, styrene, p-chlorostyrene, aromatic monomers such as vinyltoluene, acrylic acid, methyl acrylate, methacrylic acid,
Acrylic monomers such as methacrylic acid methyl ester and acrylonitrile can be exemplified. This copolymerizable monomer can also be added in the compound formulation separately from the unsaturated polyester diluent. This monofunctional vinyl monomer is usually added in an amount of 5 to 95% by weight based on the resin mixture.

Further, a polyvalent copolymerizable compound can be used in combination. Examples of the polyvalent copolymer compound include, for example, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, propylene glycol dimethacrylate,
Dipropylene glycol dimethacrylate, 1,4-butanediol dimethacrylate, neopentyl glycol dimethacrylate, 1,6-hexanediol dimethacrylate, ethylene glycol diacrylate, 1,
3-propanediol diacrylate, 1,4-butanediol diacrylate, neopentyl glycol diacrylate, 1,6-hexanediol diacrylate, trimethylolpropane dimethacrylate, glycerin dimethacrylate, pentaerythritol dimethacrylate, trimethylolpropanedi Examples thereof include dimethacrylate or diacrylate of an alkane polyol having 2 to 12 carbon atoms such as acrylate. Further, for example, carbon such as trimethylolpropane trimethacrylate, glycerin trimethacrylate, pentaerythritol trimethacrylate, glycerin triacrylate, pentaerythritol triacrylate, pentaerythritol tetramethacrylate, dipentaerythritol hexamethacrylate, pentaerythritol tetraacrylate, dipentaerythritol hexaacrylate, etc. Alkane polyol polymethacrylate or polyacrylate having Formulas 3 to 12 can be used.

Examples of the low-shrinking agent that can be used in the present invention include thermoplastic resins conventionally used as a low-shrinking agent for unsaturated polyester resins. Examples of such a resin include polybutadiene or its hydrogenated product, polyisoprene or its hydrogenated product, aromatic vinyl / conjugated diene (block) copolymer or its hydrogenated product, polystyrene and its partially crosslinked polymer, styrene / acetic acid Examples thereof include a vinyl block copolymer, polyvinyl acetate, and polymethyl methacrylate, and further include a saturated polyester and a polyether. These low-shrinkage agents make the resin mixture 100
When it is used as a weight part, usually 5 to 30 parts by weight can be added to the resin mixture, but preferably 10 to 25 parts by weight.

The inorganic filler usable in the present invention includes calcium carbonate, aluminum hydroxide, glass powder and the like. The average particle size is preferably from 1 to 30 microns, and those subjected to a surface treatment with a surface modifying agent such as a silane coupling agent can also be used. When the amount of the resin mixture is 100 parts by weight, 50 to 350 parts by weight can be added.
Addition of ２５０250 parts by weight is preferred. If the amount is less than 50 parts by weight, cracks and surface smoothness tend to decrease during molding.
On the other hand, when 350 parts by weight is added, there is a high possibility that a problem such as insufficient material fluidity during molding occurs.

The curing agent that can be used in the present invention can be selected from general organic peroxides according to the target molding cycle. As a curing agent blended in the resin composition, t-butyl peroxybenzoate (T
BPB), t-butyl peroxyoctoate (TBP)
O), t-hexylperoxybenzoate (THP
B), t-hexyl peroxyoctoate (THP)
O), organic peroxides such as 2,5-dimethyl-2,5-di (benzoylperoxy) cyclohexane (DDBPH), t-amylperoxyoctoate (TAPO), and t-butylisopropylperoxycarbonate (TBIPC) At least one is selected from the products according to a desired curing speed, and is usually 0.3 to 100 parts with respect to the resin mixture.
4 parts are blended.

The curing accelerators that can be used in the present invention include:
Organometallic compounds of cobalt, copper, and manganese, for example, octoate, naphthenate, acetylacetonate and the like can be mentioned. These may be used alone or as a mixture. Usually, 20 to 200 ppm is used for 100 parts of the resin mixture.

Inhibitors that can be used in the present invention include PBQ (parabenzoquinone), MTBHQ (mono-tert-butylhydroxine), BHT (di-tert-butylhydroxytoluene or 2,5-di-tert-butyl-4-methyl). Phenol), HQ (hydroquinone), TBC (t-butylcatechol) and the like can be used alone or in combination.
Usually, 0.01 to 1 part by weight is blended with respect to 100 parts by weight of the resin mixture.

The internal release agent that can be used in the present invention includes:
Examples thereof include metal soaps such as zinc stearate and calcium stearate, fluorine-based organic compounds, and phosphoric acid-based compounds. Usually 1-2 for 100 parts by weight of the resin mixture
0 parts by weight are blended.

Examples of the pigment which can be used in the present invention include titanium oxide, carbon black, red iron oxide, and phthalocyanine blue. Usually, 1 to 30 parts by weight is blended with respect to 100 parts by weight of the resin mixture.

Examples of the thickener which can be used in the present invention include oxides or hydroxides such as magnesium and calcium, and TDs.
And monomers such as IDI and MDI and isocyanate compounds such as prepolymers thereof.
0.1 to 10 parts by weight is added to 0 parts by weight.

The fiber reinforced material that can be used in the present invention includes:
Glass fiber, carbon fiber, aramid fiber, vinylon fiber,
There are organic fibers such as nylon fibers and the like, but preferable ones are generally those in which glass fibers having a diameter of about 8 to 20 μ are bundled with a sizing agent (strand), and 1/16 to 2 inches long are used. Is 1/4 to 1 inch. The fiber reinforcement is usually 1 to the total amount of the composition.
35% by weight can be blended. In order to obtain a better appearance and sufficient strength with a single molded product, the glass content is preferably 5 to 30% by weight.

The molded article of the unsaturated polyester resin composition according to the present invention is formed by heating and pressurizing the above-mentioned unsaturated polyester resin composition at a predetermined temperature and a predetermined pressure with a compression molding machine or an injection molding machine. Is done. For example, a molded product can be manufactured by curing at a pressure of 1 to 12 MPa and a temperature of 80 to 160 ° C.

[0027]

Examples and Comparative Examples Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples. As a matter of course, the present invention is not limited only to the following examples.

Examples 1-2, Comparative Examples 1-2 In addition to the formulation shown in Table 1, mono-t was used as an inhibitor.
0.05 parts by weight of -butylhydroquinone (MTBHQ) and 1 part by weight of t-butylperoxybenzoate (TBPB) as a polymerization initiator were used. As a release agent, 5 parts by weight of zinc stearate (ZuSt) was used, and as a thickener, 1 part by weight of magnesium oxide was used.

The molding material in which 5% or more of the strands remain is obtained by arranging a patterned resin composition obtained by adding a curing agent, a thickener, and the like to the raw materials shown in Table 1, and glass fibers to face each other. Then, the mixture was passed between a pair of rotating rollers for mixing, and the mixture was scraped off on a film with a scraping roll or the like, and then formed into a sheet-like molding material by the method described above. The SMC and BMC of the comparative examples were manufactured according to a known manufacturing method with the compositions shown in Table 1. That is, the SMC was obtained by sufficiently stirring the raw materials other than the thickener and the glass fiber, adding the thickener to the resin paste, and impregnating the resin paste with the glass fiber using an impregnator. BMC premixes raw materials other than filler, thickener and glass fiber with a homomixer, and puts it into a sigma blade kneader,
Thereafter, it was manufactured by adding and kneading the thickener and the glass fiber in this order.
All materials were aged for 24 hours in a 40 ° C. atmosphere. These materials are 140
Heating and pressing for 6 minutes under conditions of 10 ° C and 10MPa, thickness 6mm
Was obtained. The strength properties were measured by cutting out the obtained molded product, and other tests were performed on the surface of the obtained molded product.

In Examples 1 and 2, the pattern material was uniformly dispersed, and a molded product having no burrs and pinholes and having no problem in strength and other physical properties was obtained. Comparative Example 1 had no problem in appearance, but had strength physical properties, particularly an Izod impact value of 3K.
J / m ² was low, and nests and pinholes were observed in some molded articles. In Comparative Example 2, although there was no problem in strength and moldability (nests and pinholes), the flow pattern due to the localization of the pattern material was conspicuous, and a molded article satisfactory in appearance was not obtained.

[0031]

[Table 1]

[0032]

According to the present invention, when an unsaturated polyester resin composition containing a pattern material for imparting the design property of the present invention and a molding material in which the resin composition is impregnated into a fiber reinforcing material are molded, only the surface material is formed. Rather, it is possible to obtain a molded product that is uniformly dispersed inside the molded product, has excellent appearance performance, and is as excellent in strength as SMC. Since the present invention is also a sheet-like molding material, continuous production is possible, which leads to improvement in productivity. In addition, molding can be performed with existing equipment without increasing the number of work steps, and in some cases, the number of work steps can be reduced to obtain molded products with drastic changes in appearance. Material.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C08K 7/02 C08K 7/02 C08L 63/10 C08L 63/10 101/00 101/00 // B29K 101: 10 B29K 101: 10 (72) Inventor Masamitsu Takada 2-26-1, Muraokahigashi, Fujisawa-shi, Kanagawa Prefecture Takeda Pharmaceutical Company Limited Chemical Company (72) Inventor Takuya Kawauchiyama 2-26 Muraokahigashi, Fujisawa-shi, Kanagawa Prefecture No. 1 Takeda Pharmaceutical Co., Ltd. Chemicals Company (72) Inventor Mitsuba Kubota 2-26-1, Muraokahigashi, Fujisawa-shi, Kanagawa Prefecture Takeda Pharmaceutical Co., Ltd. Chemicals Company (72) Inventor Koichi Akiyama 2-26-1, Muraoka-Higashi, Fujisawa-shi, Kanagawa Prefecture Takeda Pharmaceutical Company Limited Chemical Company (72) Inventor Takashi Shibata Muraoka, Fujisawa-shi, Kanagawa Prefecture 2-26-1, Higashi Takeda Pharmaceutical Co., Ltd. Chemicals Company F-term (reference) 4F072 AA02 AA05 AA07 AB09 AD38 AE13 AH16 AH23 AK04 AK14 AK15 AL01 AL06 AL17 4F201 AA36 AB01 AB11 AB12 AB25 BC02 BC12 BC37 BK02 BK16 BK28 BQ BQ32 4J002 AA00X AA02W AC03X AC06X AC11X BC03X BE02Z BF02X BG03Y BG06X BP01X BP03X CD00Y CD20W CF00X CF00Y CF21Y CF22W CH00X CL00Z CL06Z DA019 DE147 DE148 DE238 DJ007 DJ057 DL007 DL008 EF0947 DL007 DL008 EF0987

Claims (5)

[Claims] 1. A resin composition containing a thermosetting resin, a low-shrinking agent, a pattern material having an average diameter in the range of 0.01 to 10 mm, an inorganic filler, and the like, and a fiber reinforcing material are disposed opposite to each other. A molding material obtained by passing between a pair of mixing rollers rotating inward and scraping the mixture with a scraping member, wherein the pattern material is uniformly dispersed inside the molding material. 2. A molding obtained by adding a fiber reinforcing material to a resin composition containing a thermosetting resin, a low-shrinking agent, a pattern material having an average diameter in the range of 0.01 to 10 mm, an inorganic filler and the like. A molding material wherein the pattern material is uniformly dispersed inside the molding material, and 5% or more of the added fiber reinforcement remains in the strand. 3. The molding material according to claim 1, wherein the resin composition is supplied onto a pair of mixing rollers by a shower tube or a slit tube. 4. A sheet-like molding material obtained by dropping the molding material according to claim 1 or 2 onto a lower film disposed below, covering the upper surface of the film with an upper film, and then compressing the upper film. 5. A molded article obtained by curing the molding material according to claim 1.