CN1296036A - Sheet-shaped moulding material for producing moulded products with high transparency and the obtained moulded products by same - Google Patents
Sheet-shaped moulding material for producing moulded products with high transparency and the obtained moulded products by same Download PDFInfo
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- CN1296036A CN1296036A CN00134242A CN00134242A CN1296036A CN 1296036 A CN1296036 A CN 1296036A CN 00134242 A CN00134242 A CN 00134242A CN 00134242 A CN00134242 A CN 00134242A CN 1296036 A CN1296036 A CN 1296036A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/24—Thermosetting resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Reinforced Plastic Materials (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
To provide a fiber-reinforced resin molded article having high transparency and a profound-looking appearance, having no unevenness in color, excellent in surface smoothness, and exhibiting sufficient strength even when the thickness is equal to that of the conventional molded article, and to provide a sheet-like molding material capable of giving the above molded article. This sheet-like molding material from which the molded article having high transparency can be obtained comprises a uniformly colored sheet which is obtained by kneading and impregnating a resin component containing a thermoplastic resin and a shrinkage diminishing agent with an inorganic filler and further with glass fiber, and which contains titanium dioxide in an amount of <= 0.5 wt.% based on the weight of the components other than the glass fiber.
Description
The present invention relates to can be used in the sheet-shaped moulding material of preparation transparent molding goods and use the moulded parts that this material obtains.
The invention particularly relates to and be suitable for to provide the sheet-shaped moulding material of the bathtub, sales counter etc. of the transparency to Apparent Depth with being made in many occasions, with use the moulded parts that existing metal pattern is obtained by this moulding material, these goods do not strengthen overleaf under the situation of sheet and have enough intensity.
In recent years, the characteristic of the artificial marble class that is used in the goods that relate to water in lavatory and the kitchen there has been higher requirement, and has developed multiple moulding material at these markets.Usually, the moulded parts desired characteristic made of these moulding materials is for having than higher transparency and surface smoothness.In the past, utilize the refractive index refr ind of resin and filler to obtain high transparency.Sometimes, be used in combination glass fibre in order to improve molding processability, yet, must add the glass fibre of staple length as few as possible in order to improve surface smoothness.
Thus obtained the intensity of the moulded parts of required outward appearance is provided is not enough, needs to increase the thickness of moulded parts or gains in strength by enhancing sheet overleaf.If take to increase the method for moulded parts thickness, just need the redesign mould, this will cause high spending, and the remarkable increase of inevitable production cost.Similarly, owing to forming the quantity that the step that strengthens sheet has increased production stage overleaf, reduced productivity.
From the viewpoint of material produce, be example with the materials behavior that is known as bulk molding compound (BMC) (hereinafter referred to as BMC) owing to comprised intermittent process, with regard to having produced because can not continuous production and the poor efficiency problem that causes.
The object of the invention is to provide a kind of moulding material, using this material can obtain to have sufficient intensity, high-clarity under common moulded parts thickness level, have the outward appearance of Apparent Depth, the color uniformity of excellence and the moulded parts of excellent surface smoothness, wherein this material is can the similar flaky material state of quantity-produced, as sheet molding compound (hereinafter referred to as SMC) and thick molding compound (TMC).
Conclusion as thorough research, the contriver has been found that the moulded parts that the moulding material that contains certain resin Composition can obtain to have sufficient intensity under common moulded parts thickness and have the Apparent Depth of transparent characteristic, wherein this resin Composition contains thermosetting resin and low-grade additive, and, finish the present invention based on this comprising mineral filler, the tinting pigment that contains fixed ratio titanium dioxide and glass fibre.
The present invention relates in other words:
1. be used to obtain to have the sheet-shaped moulding material of high-clarity and excellent color homogeneity moulded parts, by with mineral filler be used for fibre-reinforced glass fibre and the moulding material that resin Composition is mediated and infiltration obtains that comprises thermosetting resin and low-grade additive, wherein content of titanium dioxide is not higher than 0.5wt% in removing the moulding material of glass fibre;
As top the 1st described in sheet-shaped moulding material, wherein between mineral filler and the thermosetting resin difference of refractive index refr ind less than 0.05;
3. as top the 1st or 2 described sheet-shaped moulding material, wherein mineral filler is an aluminium hydroxide;
As top 1 to 3 in any described sheet-shaped moulding material, its low and middle-grade additive is partial cross-linked polymkeric substance;
As top 1 to 4 in any described sheet-shaped moulding material, wherein moulding material comprises the glass fibre that is used for 1/4 to 2 inch of fibre-reinforced length, 10-30wt%, and wherein overleaf not under the enhanced situation moulded parts itself have enough intensity.
6. coming the fiber reinforcing Modeling goods that any described sheet-shaped moulding material obtains among molding such as top 1 to 5 by using mould, is that transmittance is at least 5% under the situation of 4mm at moulded parts thickness wherein.
But unsaturated polyester has dissolved in the unsaturated polyester resin of copolymerization unsaturated monomer, but the vinyl ester resin that has dissolved in the copolymerization unsaturated monomer with vinyl ester preferably is used as the used thermosetting resin of the present invention, and can be used in combination with the unsaturated functional group of the free redical polymerization that contains monomer and oligomer.
Be used for unsaturated polyester of the present invention and can pass through α, β-ethylenically unsaturated dicarboxylic (or its acid anhydrides) synthesizes with the addition reaction or the dehydration-condensation reaction of glycol.In addition, also can be used in combination as saturated dicarboxylic acid, aromatic dicarboxylic acid or its acid anhydrides or with the dicyclopentadiene of carboxylic acid reaction.α, the example of β-ethylenically unsaturated dicarboxylic comprises the acid anhydrides of toxilic acid, fumaric acid, methylene-succinic acid, citraconic acid and these dicarboxylic acid.Can with these α, the example of the dicarboxylic acid that β-ethylenically unsaturated dicarboxylic is used in combination comprises hexanodioic acid, sebacic acid, Succinic Acid, Tetra hydro Phthalic anhydride, phthalic acid, m-phthalic acid, terephthalic acid, tetrahydrophthalic acid and tetrachlorophthalic acid.At least aly be selected from following glycol and can be used in the present invention.For example, alkanediol, oxa--alkanediol, Hydrogenated Bisphenol A by to dihydroxyphenyl propane addition of ethylene oxide or the glycol of propylene oxide acquisition and their hydride, all can be used as glycol.Except these glycol, can also use single pure and mild triol.The example of alkanediol comprises ethylene glycol, 1, and 2-propylene glycol, 1, ammediol, 1,3 butylene glycol, 1,4-butyleneglycol, neopentyl glycol, 1,5-pentanediol, 1,6-hexylene glycol and cyclohexanediol.Oxa--alkanediol example comprises glycol ether, triglycol, dipropylene glycol and tripropylene glycol.The pure and mild triol of list that can be used in combination with these glycol comprises octanol, oleyl alcohol and TriMethylolPropane(TMP).The synthetic of unsaturated polyester undertaken by heating usually, removes by product-water that dereaction produces in the time of reaction.Usually using molecular-weight average among the present invention is 800-10,000, the ester acid number is the unsaturated polyester of 5-100.When producing resin combination, unsaturated polyester resin is used with the form that unsaturated polyester has dissolved in the unsaturated polyester resin in the copolymerisable monomer usually, and some examples of this situation will be stated below.With reference to the mixture of 100 weight part unsaturated polyester resins, simple function group vinyl monomer and low-grade additive (below be called resin compound), the common 5-100 weight part of unsaturated polyester resin consumption.
Among the present invention preferably the refractive index of unsaturated polyester resin and mineral filler be complementary, to obtain transparent moulded parts.Usually, the refractive index of cure unsaturated polyester resins has raise 0.02 than the value before solidifying.When the refractive index of cure unsaturated polyester resins and mineral filler more, if their difference is best in 0.05 scope.The difference of cure unsaturated polyester resins and mineral filler refractive index is preferably in 0.03 scope, to obtain higher transmittance.
When the unsaturated polyester resin of using two or more types or mineral filler, consider resin and filler mixture ratio and their corresponding refractive index, form selected standard by calculating mean number.
For vinyl ester, vinyl ester resin obtains by unsaturated monoprotic acid and the Resins, epoxy reaction with epoxide group.For example, bisphenol-type epoxy resin and phenolic resin varnish type epoxy resin can be as the required Resins, epoxy of this reaction.With respect to the resin compound of 100 weight parts, the vinyl ester resin add-on is generally 5 to 100 weight parts.
The simple function group vinyl monomer of at least a type is used as copolymerisable monomer, and used unsaturated polyester of the present invention or vinyl ester dissolve in wherein.The example of simple function group vinyl monomer comprises aromatic monomer such as vinylbenzene, to chloro-styrene and Vinyl toluene; With Acrylic Acid Monomer such as vinylformic acid, methyl acrylate, methacrylic acid, methyl methacrylate and vinyl cyanide.The thinner that copolymerisable monomer not only can be used as unsaturated methyl esters or vinyl ester adds, but also can identify oneself with in the compound reaction formula.With respect to the resin compound of 100 weight parts, the add-on of simple function group vinyl monomer is generally 0 to 90 weight part.
In addition, but can also be used in combination polyfunctional copolymerization.But polyfunctional copolymerization example comprises the dimethacrylate or the diacrylate of the chain alkane polyol with 2 to 12 carbon atoms, ethylene glycol dimethacrylate for example, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, propylene glycol dimethacrylate, dipropylene glycol dimethacrylate, 1, the 4-butylene glycol dimethacrylate, neopentylglycol dimethacrylate, 1, the 6-hexanediol dimethacrylate, glycol diacrylate, 1, the ammediol diacrylate, 1, the 4-butylene glycol diacrylate, neopentylglycol diacrylate, 1, the 6-hexanediyl ester, the TriMethylolPropane(TMP) dimethacrylate, glycerol dimethacrylate, dimethyl pentaerythritol acrylate and trimethylolpropane diacrylate.Consider refractive index, the present invention can utilize one type copolymerisable monomer to implement, but refractive index can also be regulated by the copolymerisable monomer that is used in combination two or more types.
In addition, the polymethacrylate or the polyacrylic ester of alkane polyol have also been mentioned with 3 to 12 carbon atoms, trimethylolpropane trimethacrylate for example, the glycerol trimethacrylate, pentaerythritol acrylate trimethyl, glycerol triacrylate, pentaerythritol triacrylate, tetramethylolmethane tetramethyl-acrylate, Dipentaerythritol hexamethyl acrylate, tetramethylol methane tetraacrylate and dipentaerythritol acrylate.
Partial cross-linked polymkeric substance is preferably used as the additive of low grade of the present invention.
Be used for partial cross-linked polymkeric substance of the present invention and comprise those, but advantageous applications is the multipolymer of at least a type simple function group vinyl monomer and at least a type polyfunctional monomer at the thermoplastic resin polymerization process or afterwards still for partial cross-linked polymkeric substance.Simple function group monomer example comprises aromatic vinyl monomer, for example vinylbenzene, alpha-methyl styrene, chloro-styrene, Vinyl toluene and vinyl xylene, ethyl vinyl benzene, conjugated diolefine such as divinyl, isoprene and chloroprene; (methyl) acrylate such as ethyl propenoate, propyl acrylate, butyl acrylate, cyclohexyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate and butyl methacrylate; Vinyl ester such as vinyl acetate and propionate; Vinyl cyanide such as vinyl cyanide and methacrylonitrile can also be vinylidene cyanides.The polyfunctional monomer example comprises aromatics di-vinyl monomers such as Vinylstyrene; With polymethyl acrylic acid alkane polyol ester such as ethylene glycol diacrylate, Ethylene glycol dimethacrylate, the diacrylate butanediol ester, hexanediol diacrylate, dimethacrylate hexylene glycol ester, the diacrylate trihydroxymethylpropanyl ester, dimethacrylate trihydroxymethylpropanyl ester, trimethyol propane triacrylate and trihydroxy methyl propane trimethyl acrylate.Under those situations of using no cross-linked polymer such as polystyrene, in moulded parts, be easy to occur color error ratio.Can be with partial cross-linked polymer-coated to the surface of inorganic materials, this inorganic materials is for example silicon-dioxide, aluminum oxide, lime carbonate, Magnesium Silicate q-agent, pure aluminium silicate or aluminium hydroxide (below be called ATH).Partial cross-linked polymkeric substance add-on is generally resin compound 0 to 80 weight part of per 100 weight parts.
As the used mineral filler of the present invention, filler such as ATH or glass powder have also been mentioned.Preferably their average particle size particle size is 1 to 30 micron, can also use and carry out the surface-treated filler with surface-modifying agent such as silane coupling agent.50 to 300 weight part fillers be can add in per 100 parts by weight resin mixtures, but impregnation state and the moldability of SMC, preferably no more than 100 to 250 weight parts of its add-on considered.When being less than 50 weight parts, when molding, being tending towards occurring crackle or surface smoothness and reducing.Transmittance was tending towards reducing when on the other hand, add-on was more than 350 weight parts.
If will have the lime carbonate very different as filler with the refractive index of resin, will find the reduction of transmittance so, therefore this filler can not use separately, but according to special applications, it can be used in combination with other filler.For example, transmittance is tending towards remarkable reduction when independent application lime carbonate.In addition, when using ATH and having the unsaturated polyester resin different with the refractive index of ATH, transmittance reduces in the same way, and therefore preferably the refractive index of unsaturated polyester resin and ATH is suitable each other.
On the estimation molding cycle, initiator is selected from known organo-peroxide usually.As the initiator of sneaking into resin combination; from organo-peroxide, select the initiator of one or more types according to required solidification rate; this organo-peroxide such as t-butyl perbenzoate (TBPB); cross sad tertiary butyl ester (TBPO); peroxybenzoic acid uncle polyhexamethylene (THPB); cross sad uncle's polyhexamethylene (THPO); 2; 5-dimethyl-2; 5 pairs of (benzoyl peroxide base) hexanaphthenes (DDPBH); cross sad tert-pentyl ester (TAPO) and percarbonic acid tertiary butyl isopropyl esters (TBIPC), sneak into 0.3 to 4 this material of weight part in the resin compound of per 100 weight parts usually.
Usually use diameter be about 8 to 20mm and length be that 1/4 to 2 inch glass fibre is as fabric reinforcement.Advantageous applications length is 1/2 to 1 inch glass fibre.Fabric reinforcement can be sneaked into 10 to 30wt% amount with respect to whole composition weight usually.15 to 25wt% glass content is expected to make moulded parts itself to have good appearance and sufficient intensity.The generation of crackle when the fabric reinforcement add-on that is less than 10wt% will cause molding.In addition, add-on surpass 30wt%, staple length greater than 2 inches situation under, the surface smoothness of moulded parts will descend.
For example, curing catalyst, stopper, internal mold release, tinting pigment and thickening material can be blended into the amount of not damaging performance in the resin combination of the present invention.
Curing catalyst can also be used in combination with initiator.The curing catalyst example comprises cobalt, the organometallic compound of copper and manganese, for example their octylate, naphthenate and acetylacetonate.They can use separately, perhaps mix and use.Usually their consumptions are per 100 parts by weight resin mixtures 20 to 200ppm.
Can use the stopper of one or more types, as PBQ (para benzoquinone), MTBHQ (list-tert-butyl Resorcinol), BHT (two-tert-butyl cresols or 2,5-couple-tert-butyl-4-cresols), HQ (Resorcinol) and TBC (tert-butyl catechol).Usually per 100 parts by weight resin mixtures mix the stopper of 0.01 to 1 weight part.
For example, metal is saponified as Zinic stearas and calcium stearate; Fluorine-based organic compound and phosphate compound can be used as internal mold release.Usually per 100 parts by weight resin mixtures are sneaked into this material of 1 to 20 weight part.
Titanium dioxide, carbon black, red lead, phthalocyanine blues etc. can be used as pigment.And, obtaining to want the high transmission rate that obtains, the no more than 0.5wt% of titanium dioxide composition in removing the moulding material of glass fibre is essential.In glass fibre, can see the existence of titanium dioxide, and the adjusting of titanium dioxide amount is important in removing the composition of glass fibre.And the pigment mixed volume is generally per 100 parts by weight resin mixtures, 1 to 30 weight part.
Magnesium, the oxide compound of calcium etc. and oxyhydroxide can be used as thickening material.Usually the add-on of thickening material is per 100 parts by weight resin mixtures, 0.1 to 10 weight part.
Resin combination of the present invention can be kneaded and floods these components to obtain sheet moulding material such as SMC and TMC by using common methods, but use in the situation of thickening material at those, be mediate and dipping after, under specified temperature slaking use thickening material when carrying out molding after the specified time.
By the moulded parts that unsaturated polyester resin compositions of the present invention obtains,, in plasticator or injection moulding machine, aforementioned unsaturated polyester resin compositions heating and pressurizing is finished molding by under specified temperature and pressure.For example, moulded parts can obtain by the curing under 80 to 160 ℃ of temperature, 1 to 12MPa.
Embodiment 1 to 6 and comparative example 1 to 3
Below by embodiment and comparative example the present invention is described in further detail.Yet the present invention is not limited in these embodiment.The unit of the statement of compound formulas shown in the table is a weight part.
In embodiment and comparative example, by Takeda Chemical Industries, the Polymal 9305Z (registered trademark) that Ltd. produces is used as unsaturated polyester resin.
Takeda Chemical Industries, the Staphyloid GB103R (registered trademark) that Ltd. produces is used as partial cross-linked polymkeric substance.
Content of titanium dioxide is different in removing the composition of glass fibre, and more specifically is, regulate the content of titanium dioxide in dyeing pigment.
Average particle size particle size is that the ATH of 8 μ m is used as filler.
In addition, list-tert-butyl Resorcinol (MTBHQ) is as stopper, and t-butyl perbenzoate (TBPB) is used as polymerization starter.Zinic stearas (ZnSt) is used as releasing agent, and magnesium oxide is as thickening material, and glass fibre is as fabric reinforcement.
SMC with embodiment shown in the table 1 and comparative example part obtains by known production method.That is to say, mix the starting material except thickening material and glass fibre fully, then thickening material is joined in the resin paste and use impregnator and flood with glass fibre.In envrionment temperature is with SMC slaking 24 hours under 40 ℃.Under 140 ℃ and 10Mpa hot pressing SMC5 minute, obtaining thickness was the moulded parts of 4mm.Measure transmittance and every kind of composition is carried out the flexural strength experiment with turbidometer.In addition, under 140 ℃ and 10Mpa, use small-sized water-bath tubular type mould to each SMC heating and pressurizing 5 minutes, the check moldability can be known the surface smoothness and the color uniformity of moulded parts simultaneously.
Embodiment and comparative example are shown in Table 1.
In embodiment 1 to 6, the moulded parts that acquisition presents good moldability and satisfactory intensity is possible.In addition, this moulded parts demonstrates high transmission rate, and they have the very beautiful appearance of feeling good as the moulded parts Apparent Depth.
When the amount of the titanium dioxide in the moulding material of removing glass fibre increased, comparative example 1 and 2 had demonstrated the minimizing of transmittance.Comparative example 3 is the composition of the artificial marble BMC of ATH for filler.These all demonstrate low transmittance, and moulded parts do not possess beautiful appearance (comparative example 1 and 2), and moulded parts itself does not have enough intensity and needs reinforce (comparative example 3).
Table 1
Table 1 (continuing)
The moulded parts that is formed by unsaturated polyester resin compositions molding of the present invention and resin combination is impregnated into the moulding material that goes in the glass fibre can obtain to demonstrate the Apparent Depth of high-transmittance.And they have enough intensity, therefore need not improve mould with increase thickness, and can use existing mould and carry out molding, and because they itself have sufficient intensity, need not to increase molding thickness or increase enhancement layer overleaf.
And because they are known as the lamellar morphology of SMC and TMC, moulding material of the present invention can obtain by the successive production technique, so their the very useful moulding materials that still can boost productivity.
Claims (6)
1. be used to obtain to have the sheet-shaped moulding material of high-clarity and excellent color homogeneity moulded parts, by with mineral filler be used for fibre-reinforced glass fibre and the moulding material that resin Composition is mediated and infiltration obtains that comprises thermosetting resin and low-grade additive, wherein content of titanium dioxide is not higher than 0.5wt% in removing the moulding material of glass fibre.
2. the sheet-shaped moulding material described in claim 1, wherein between mineral filler and the thermosetting resin difference of refractive index refr ind less than 0.05.
3. sheet-shaped moulding material as claimed in claim 1, wherein mineral filler is an aluminium hydroxide.
4. the sheet-shaped moulding material described in claim 1, its low and middle-grade additive is partial cross-linked polymkeric substance.
5. sheet-shaped moulding material as claimed in claim 1, wherein moulding material comprises the glass fibre that is used for 1/4 to 2 inch of fibre-reinforced length, 10-30wt%, and overleaf not under the enhanced situation moulded parts itself have enough intensity.
6. by using the fiber-reinforced resin molded article that mould comes molding sheet-shaped moulding material as claimed in claim 1 to obtain, be under the situation of 4mm at moulded parts thickness, the transmittance of this moulded parts is at least 5%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29385499A JP2001115046A (en) | 1999-10-15 | 1999-10-15 | Sheet-like molding material from which molded article having high transparency can be obtained, and the same molded article |
| JP293854/1999 | 1999-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1296036A true CN1296036A (en) | 2001-05-23 |
Family
ID=17800026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00134242A Pending CN1296036A (en) | 1999-10-15 | 2000-10-13 | Sheet-shaped moulding material for producing moulded products with high transparency and the obtained moulded products by same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2001115046A (en) |
| KR (1) | KR20010051002A (en) |
| CN (1) | CN1296036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436545C (en) * | 2005-06-08 | 2008-11-26 | 王汉兰 | High molecular compound mark plate production process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030078192A (en) * | 2002-03-28 | 2003-10-08 | 이국희 | Unsaturated polyester resin composition for valve coating and method of coating valve with the composition |
| JP5519459B2 (en) * | 2010-09-27 | 2014-06-11 | パナソニック株式会社 | Resin composition for artificial marble and artificial marble |
| JP7338457B2 (en) | 2019-12-25 | 2023-09-05 | Dic株式会社 | Sheet molding compound and its molded product |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2979568B2 (en) * | 1990-02-27 | 1999-11-15 | 大日本インキ化学工業株式会社 | Molding material for artificial marble |
| JPH06192345A (en) * | 1992-02-25 | 1994-07-12 | Takeda Chem Ind Ltd | Core-shell polymer, unsaturated polyester resin composition containing the same and its molded product |
| JPH09302009A (en) * | 1996-05-09 | 1997-11-25 | Takeda Chem Ind Ltd | Unsaturated polyester resin composition |
-
1999
- 1999-10-15 JP JP29385499A patent/JP2001115046A/en active Pending
-
2000
- 2000-10-13 KR KR1020000060186A patent/KR20010051002A/en not_active Application Discontinuation
- 2000-10-13 CN CN00134242A patent/CN1296036A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436545C (en) * | 2005-06-08 | 2008-11-26 | 王汉兰 | High molecular compound mark plate production process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001115046A (en) | 2001-04-24 |
| KR20010051002A (en) | 2001-06-25 |
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