WO2007069493A1 - 重合体粒子、及びその製造方法、並びに、その重合体粒子を含む樹脂組成物、及び成形体 - Google Patents
重合体粒子、及びその製造方法、並びに、その重合体粒子を含む樹脂組成物、及び成形体 Download PDFInfo
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- WO2007069493A1 WO2007069493A1 PCT/JP2006/324223 JP2006324223W WO2007069493A1 WO 2007069493 A1 WO2007069493 A1 WO 2007069493A1 JP 2006324223 W JP2006324223 W JP 2006324223W WO 2007069493 A1 WO2007069493 A1 WO 2007069493A1
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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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
- C08J3/14—Powdering or granulating by precipitation from solutions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/18—Suspension polymerisation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
- C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
- C08F265/06—Polymerisation of acrylate or methacrylate esters on to polymers thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/12—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/08—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
- C08L51/085—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds on to polysiloxanes
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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
- C08J2351/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/254—Polymeric or resinous material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
Definitions
- the present invention relates to polymer particles, a production method thereof, a resin composition containing the polymer particles, and a molded body.
- fine particles having a particle size of about 1 to 50 ⁇ m have attracted attention in many fields and are required for various applications.
- examples include resin modifiers, paint diffusing agents or matting agents in various displays, slipperiness imparting agents in cosmetics, and toner materials in the field of electronic copiers. It is done. The application of such micron-sized particles is expected to expand more and more in the future!
- a light diffusing agent is a refractive index of the transparent resin dispersed in a transparent resin to obtain light diffusibility in a projection television, a liquid crystal display device, a lighting cover and the like.
- Different inorganic or organic fine particles are used.
- an anti-foaming agent is a molded article having a wrinkle obtained from a resin such as an acrylic resin, a chlorinated resin resin, an ABS resin, or the like that does not require wrinkles or rather has no flaws.
- a resin such as an acrylic resin, a chlorinated resin resin, an ABS resin, or the like that does not require wrinkles or rather has no flaws.
- Inorganic or organic fine particles that are dispersed in rosin when used in applications where is preferred.
- inorganic fine particles used in such applications include barium sulfate, calcium carbonate, quartz, and the like, which have an average particle size of 10 ⁇ or less. Furthermore, as a substitute for these inorganic fine particles, polymer fine particles obtained by copolymerizing styrene or substituted styrene and a polyfunctional monomer are used (for example, see Patent Document 1).
- the polymer fine particles comprising the core Z outer shell polymer Because
- the core is composed of a rubbery alkyl acrylate having an alkyl group having 2 to 8 carbon atoms, and the outer shell is miscible with the matrix polymer and is present in the particles in an amount of about 5 to 40% by weight.
- Polymer fine particles are disclosed (for example, see Patent Document 2).
- methallyl resin is used as a base resin (transparent resin)
- acrylic polymer is used as the polymer fine particles.
- a light diffusing agent in which the outermost layer is formed is disclosed.
- the acrylic polymer is generally excellent in optical properties and has good affinity with methacrylic resin, so that it is expected that a light diffusing resin composition having high properties can be obtained.
- the monomer or the monomer mixture is first divided into an initial addition monomer and a dropping monomer, and then a persulfate. After the initial addition monomer is added all at once to the buffer-containing aqueous medium to which the initiator is added, seed particles are formed by holding for a certain period of time.
- a method for producing a polymer latex is disclosed in which, after the salt initiator is added, the dropping monomer is immediately dropped over a certain period of time and maintained for a certain period of time (see, for example, Patent Document 4).
- the solubility in a polymerizable monomer, water at 20 ° C is 0.0.
- a solution having a volume average particle diameter of about 2 to 20 m is prepared by mixing a solution composed of a compound and water, and applying mechanical shear to the mixture to prepare an OZW type emulsion, and then polymerizing in the following manner.
- a method for producing particles is disclosed (for example, see Patent Document 5).
- the polymer fine particle latex as described above is recovered by dehydration and drying after completion of the polymerization.
- the polymer latex is agglomerated by adding an acid or salt, and the resulting slurry is dewatered and dried, or is collected as agglomerates of polymer fine particles by spray drying. It is.
- the volume average particle diameter of the obtained polymer fine particle aggregate is usually less than 100 m, and the powder characteristics of the product may be inferior, such as a large amount of fine powder. For this reason, there are problems such as inferior handling, worsening of the working environment where dusting is severe, and risk of dust explosion.
- the volume average particle size of the aggregate of the acrylic fine particles is 100 to: LOOO It has been disclosed that the powder characteristics can be improved by using m to achieve good handling and productivity (see, for example, Patent Document 6).
- this method has a problem that it cannot be applied to a specific field in which quality adjustment is difficult due to the structural restrictions of the fine polymer particles.
- the method can granulate to 1000 m or more.
- Patent Document 1 Japanese Patent Laid-Open No. 56-36535
- Patent Document 2 JP 2000-53841 A
- Patent Document 3 Japanese Patent Laid-Open No. 7-234304
- Patent Document 4 JP-A-8-198903
- Patent Document 5 JP-A-10-120715
- Patent Document 6 JP 2001-294463 A
- the present invention solves the above-mentioned problems of the prior art, a method for producing polymer particles having good powder characteristics with few structural constraints, and high powder characteristics.
- An object of the present invention is to provide an erasable resin composition, a light diffusible resin composition, and a molded article thereof that contain molecular polymer particles and have good physical properties and excellent handling properties. Means for solving the problem
- the present inventors have found that the polymer fine particle latex, Polymeric polymer particles with good powder characteristics with few structural constraints by mixing a polymerizable monomer, polymerization initiator, suspension dispersant, and coagulant, granulating and suspension polymerization In addition, by blending the polymer particles with the base resin, the erasable resin composition, light diffusibility, having good physical properties and excellent handleability. The present inventors found that a rosin composition can be obtained and completed the present invention.
- the polymer particles of the present invention comprise a latex of polymer fine particles (A) having a volume average particle diameter of 1 to 50 ⁇ m, a polymerizable monomer (B), a polymerization initiator, a suspension dispersant, and Polymer particles granulated and suspension polymerized in a system containing a coagulant,
- the polymer particles (C) have a volume average particle size of 100 to 6000 m and the fine powder content of 50 m or less is 15% by weight or less, they have less dusting and are easy to handle.
- the polymer fine particles (A) can be easily dispersed in the size of the polymer fine particles, the polymer fine particles can be imparted with excellent low gloss and light diffusibility to the base resin (D).
- Such polymer particles of the present invention include the polymerizable monomer (B), the polymerization initiator, the suspension dispersant, and the like in the presence of latex of the polymer fine particles (A). It can be produced by a production method in which the coagulant is added and the granulation and the suspension polymerization are performed.
- the granulation is performed in the presence of the latex of the polymer fine particles (A), and the polymerizable monomer (B), the polymerization initiator, and the suspension. It is carried out by adding a turbid dispersant and the coagulant,
- a method for producing polymer particles comprising producing the polymer fine particles (A) by a suspension polymerization method using a char-on emulsifier as a suspension dispersant. It is possible to efficiently granulate the fine polymer particles (A) that are preferred to be produced, and the polymer particles ( No adverse effect on granulation of C)!
- the polymer particles (C) of the present invention comprise a blending ratio of the polymer fine particles (A) and the polymerizable monomer (B) of 0.5: 99.5 to 95: 5 (provided that , Weight ratio (A): polymer particles contained in the range of (B)) can exhibit physical properties derived from the polymer fine particles (A), which are preferable, and can have good powder characteristics. .
- the polymer fine particles (A) force (meth) acrylic acid alkyl ester polymer fine particles or polyorganosiloxane polymer fine particles, and the glass transition temperature of the homopolymer is 0 °.
- the polymer particles characterized by being C or less have properties such as impact resistance with respect to a molded product produced using the resin composition of the present invention. Is particularly preferred.
- the polymerizable monomer (B) is a (meth) acrylic acid alkyl ester monomer, an aromatic vinyl monomer, a vinyl cyanide monomer, or a vinyl acetate monomer.
- vinyl chloride monomer power One or two or more selected monomers are preferred because of their good affinity with matrix resin. /.
- the resin composition of the present invention is a resin composition containing the polymer particles (C) produced by the above-described method for producing polymer particles of the present invention, and the substrate resin (D).
- the base resin (D) is at least one selected from the group consisting of a thermoplastic resin, a thermosetting resin, and an elastomer. is there.
- a resin composition comprising 100 parts by weight of the base resin (D) and 0.01 to 500 parts by weight of the polymer particles (C) is obtained. It keeps good and favorable and does not deteriorate physical properties such as impact strength.
- the resin composition comprises 100 parts by weight of the base resin (D) and 0.1 to 500 parts by weight of the polymer particles (C). .
- the base resin (D) is at least one resin selected from the group consisting of a thermoplastic resin and a thermosetting resin, and is a transparent resin. It is preferable.
- the base resin (D) force is more preferably a transparent resin having a total light transmittance of 0% or more of a molded product having a thickness of 3 mm.
- the erasing is characterized in that the polymer particles (C) are erasable polymer particles.
- Such a molded product of the erasable rosin composition of the present invention is preferably erasable and is suitably used for applications requiring low gloss.
- Such a molded article of the present invention preferably has a glossiness of 110 or less at the surface of the molded article at an incident angle of 60 degrees.
- the polymer particle (C) is a light diffusible resin composition characterized in that it is a light diffusible polymer fine particle.
- the refractive index of the polymer fine particles (A) is preferably in the range of 1.350-1.650.
- the absolute value of the difference in refractive index between the polymer fine particles (A) and the base resin (D) is:
- Such a molded article of the light diffusable resin composition of the present invention is suitably used for applications that require light diffusibility and light transmittance.
- a light diffusing resin composition molded body is a light diffusing plate
- a light diffusing plate having a total light transmittance of 10% or more and a haze ratio power of 0% or more is preferable.
- the resin composition containing the polymer fine particles has excellent physical properties and excellent handleability.
- This resin composition is used as an erasable resin composition that is a raw material for an erasable molded article that requires low gloss, and also as a raw material for a light diffusible molded article that requires light diffusibility and transparency. It can be suitably used as a light diffusing rosin composition.
- the resin composition of the present invention can be suitably used as an erasable resin composition, a light diffusing resin composition, or the like. This will be described below.
- (meth) acryl means acrylic and Z or methacryl unless otherwise specified.
- the polymer particle (C) according to the present invention is a latex of a polymer fine particle (A) having a volume average particle diameter of 1 to 50 m, a polymerizable monomer (B), a polymerization initiator, a suspension dispersant, and a coagulation.
- the agent In order to realize good productivity and product handling, the volume average particle size is 100 to 6000 ⁇ m and the amount of fine particles of 50 ⁇ m or less is produced by granulation and suspension polymerization. Because it is 15% by weight or less of the total, it can be mixed with the base resin (D) to form a resin composition with excellent handleability that can be processed and applied.
- the composition can be easily dispersed in the size of the polymer fine particle (A) unit, and can only give low gloss and light diffusibility to the base resin (D). It is possible to provide an erasable resin composition and a light diffusing resin composition that are excellent in uniformity of these properties.
- the volume average particle diameter is more preferably in the range of 100 to 4000 m.
- the amount of fine powder of 50 m or less is more preferably 10% by weight or less. When the amount of fine powder of 50 / zm or less is 15% by weight or more of the whole, the occurrence frequency of powder formation increases and the handling property may deteriorate.
- the volume average particle diameter described above can be measured by a method based on the measurement method defined in JIS Z8901 when the value is in the range of about 0.2 to 700 ⁇ m. When the range is more than about 70 m, it can be obtained by observing with an optical microscope and analyzing 100 randomly selected particles.
- the measurement of the amount of fine powder described above can be performed in accordance with, for example, a measurement method defined in JIS Z8901.
- the resin composition of the present invention contains such polymer particles (C) having good powder characteristics, the resin composition has good handleability, and the conventional resin It is possible to prevent bad working environment due to intense dusting that occurs when the composition is used, and the risk of dust explosion can be greatly reduced, which can significantly improve productivity. it can.
- the polymer particles (C) used in the erasable resin composition may be referred to as erasable polymer particles (C).
- the polymer particles (C) used in the product are referred to as light diffusing polymer particles (C)
- the base resin (D) is referred to as transparent resin (D).
- the base resin (D) and the polymer particles (C) constituting the resin composition of the present invention may be used in any combination as long as the required properties of the molded article are not impaired. Good.
- the base resin (D) is a matrix resin, and is at least one selected from the group of generally known thermoplastic resins, thermosetting resins, and elastomers. It is preferable that
- the transparent resin (D) in order to express excellent light diffusing performance, it is in accordance with the measurement method specified in JIS K7361-1 for a molded product having a thickness of 3 mm made of transparent resin (D) alone. Those having a total light transmittance of 0% or more as measured above are preferred, more preferably 50% or more, and particularly preferably those showing a total light transmittance of 80% or more. When the transparent resin (D) having a total light transmittance of 40% or less is used, the light diffusing performance may not be exhibited due to poor transparency.
- the 3 mm-thick molded body can be obtained according to known methods such as a press molding method, an injection molding method, and an extrusion molding method.
- the total light transmittance of a molded product obtained by an injection molding method can be measured by using a commercially available light transmittance measuring device.
- transparent resin (D) is excellent in versatility
- (meth) such as polymethyl methacrylate resin, methyl methacrylate-butyl acrylate copolymer resin, etc.
- Acrylic ester-based resin, polycarbonate-based resin, polystyrene-based styrene-based resin, methyl methacrylate-styrene copolymer resin, styrene-acrylonitrile copolymer resin, acrylonitrile-butadiene rubber-styrene copolymer Combined (ABS) resin and chlorinated resin are preferred.
- the transparent resin can be used alone or in combination. However, using a combination of a plurality of greases often reduces the total light transmittance! Therefore, it is preferable to use them alone.
- a plasticizer for example, a plasticizer, a curing agent, a dispersant, various leveling agents, an ultraviolet absorber, a viscosity modifier, a lubricant, a deterioration preventing agent, Antistatic agents, flame retardants, fluorescent brighteners, fluorescent dyes, pigments, colorants, antioxidants (eg, thio-containing molecules, phosphites, hindered phenols, hypophosphites, phosphonites) and light stabilizers Stabilizers (such as UV stabilizers), tackifiers, release agents, impact modifiers, processing aids, foaming agents, fillers (for example, glass fibers), reinforcing materials, heat resistance imparting agents etc
- additives that are usually added to molded products can be used as appropriate.
- the amount of the erasable polymer particles (C) to the base resin (D) is usually 0 parts by weight based on 100 parts by weight of the base resin (D). It is preferably 1 to 500 parts by weight, more preferably 0.1 to 300 parts by weight. If the blending amount is less than 0.1 parts by weight, it is difficult to achieve the target level of erasing. On the other hand, if the blending amount is more than 500 parts by weight, the surface property of the molded product may be deteriorated. The physical properties such as impact strength may be reduced.
- the polymer fine particles (A) or the erasable polymer particles (C) and a substrate are used. It is preferable that the absolute value of the difference between the refractive index (n 25 ) and rosin (D) is 0.01 or less, more preferably 0.005
- the base resin (D) is determined by the use of the final product, and its refractive index is difficult to adjust. Therefore, this difference in refractive index is determined by the fine polymer particles (A) or the erasable polymer particles. By adjusting the polymer composition constituting (C), the above range is obtained.
- the erasable rosin composition is a known method, for example, pelletizing using an extruder or the like, extrusion molding including T-die method, injection molding, calendar molding, blow molding, compression molding, or It can be easily formed into a film, sheet, or plate by a method such as inflation molding. Further, the erasable rosin composition can be directly extrusion-coated on a substrate, and a laminated molded product can be obtained. In this case, a multi-hold die is preferably used in that a good molded product can be obtained under the influence of the rheological characteristics of each layer. Furthermore, a molded article can be produced by a method in which the resin containing the erasable polymer particles (C) is uniformly applied to a base material such as a resin.
- Such an erasable molded body is highly erasable and uses for which low gloss is required, such as building materials such as outer wall materials, window frames, rain gutters, various hose covers, tableware and toys, etc.
- Miscellaneous goods housing for lighting, vehicle parts such as automobile interior parts and exterior parts, weak electrical parts, wall paper, housing interior materials for decorative boards, home appliances, OA equipment, marine materials, communication equipment housing equipment, interior Parts, automotive interior panel overlay film, It can be used for soft films such as protective films.
- such an erasable molded article preferably has a glossiness of the molded article surface of 110 or less at an incident angle of 60 degrees measured in accordance with the measurement method defined in JIS Z8741. Furthermore, it is preferably 90 or less, particularly 50 or less. If the gloss of the surface of the molded product exceeds 110, there is a possibility that the erasability may not be expressed. That is, the erasability can be evaluated by the glossiness. Specifically, the surface gloss of the molded body can be appropriately measured as the glossiness by using a gloss meter, for example, in accordance with a measurement method stipulated by ASTM D-523.
- the blending amount of the light diffusing polymer particles (C) with respect to the transparent resin (D) is usually 0.01 to 100 parts by weight of the transparent resin (D). -500 parts by weight is preferable, and 0.05-300 parts by weight is more preferable.
- the optimum blending amounts are the properties of transparent resin (D) (total light transmittance, refractive index, etc.) and the properties of light diffusing polymer particles (C) (total light transmittance, refractive index, average).
- the particle diameter For example, due to the difference in refractive index between the light diffusing polymer particles (C) and the transparent resin (D), the difference is increased, and in this case, the blending amount is increased in order to obtain good light diffusibility. In the case where the difference is large, it is preferable to reduce the amount of coupling in order to obtain good light transmittance.
- the average particle diameter of the relative light diffusing polymer particles (C) it is preferable to reduce the amount of the above-mentioned particles in order to obtain an average particle size and, in this case, good light transmittance. If the average particle size is large, the smoothness of the surface of the light diffusing plate should be good, and the blending amount should be large so that the coating of the light diffusing resin composition is not difficult. Prefer to be so.
- the absolute value of the difference in refractive index (n 25 ) between the polymer fine particles (A) and the base resin (D) is 0.001. -0. 3 is preferable.
- the refractive index (n 25 ) mentioned above is the refraction of D line measured at 25 ° C in accordance with the measurement method specified in JIS K7142.
- the difference in refractive index is smaller than ( ⁇ ) 0.001, the light passing through the light diffusion plate may not be sufficiently refracted, and the tendency for incident light to be emitted as it is increases. Good light diffusivity may not be exhibited.
- the refractive index difference is larger than 0.3, the light refracted inside the light diffusing plate is highly refracted, and the emitted light tends to decrease with respect to the incident light. The transmittance may be low.
- the light diffusing resin composition is, for example, a monomer, a monomer mixture, or a mixture of a polymer and a monomer (syrup) used in the production of transparent resin (D).
- Light diffusing polymer particles (C) mixed and dispersed in a mold, or a polymerization method in which light diffusing polymer particles (C) are mixed or dispersed in transparent resin (D) A method of extruding or injection-molding the mixture into pellets using an extruder or the like, or transparent resin (D) in which light diffusing polymer particles (C) are dispersed, It can be processed into a plate shape by a method of uniformly applying to one or both of the resins.
- the light diffusing resin composition processed into a plate shape in this way can be used for a transmissive screen for projection television, a light diffusing plate for a liquid crystal knock light or a lighting cover, a lighting signboard, and the like. Further, it can be used for a light diffusing plate or the like that requires light diffusibility and light transmittance.
- Such a light diffusing plate preferably has good light transmittance and light diffusibility.
- the light diffusing plate has a thickness of 3 mm measured according to JIS K7361-1.
- the total light transmittance value as a light transmission index is 10% or more.
- the haze ratio value as a light diffusion index is preferably 40% or more. .
- the value of the total light transmittance is more preferably 40% or more, and still more preferably 80% or more. If it is less than 10%, the light transmittance may be too low to be used as a light diffusing plate.
- the value of the haze ratio is more preferably 50% or more, and still more preferably 90% or more.
- the light diffusibility may be too low to be used as a light diffusing plate.
- a light diffusing plate has light transmittance and light diffusing properties such as the thickness of the light diffusing plate, the average particle diameter of the polymer fine particles (A), and the polymer fine particles (A) and the transparent resin (D). Needless to say, it varies depending on the difference in refractive index and the content of the light diffusing polymer particles (C) in the light diffusion plate.
- the volume average particle diameter of the polymer fine particles (A) is preferably in the range of 1 to 50 ⁇ m, more preferably in the range of 1 to 30 / ⁇ ⁇ .
- Volume average particle diameter of polymer fine particles ( ⁇ ) When the force is less than Si m, a molded body obtained from the resin composition containing the polymer particles (C) is obtained by relatively increasing the light reflecting surface with a relative increase in the particle surface area. There is a tendency that the light transmittance of the glass tends to be low and the erasability is poor.
- the volume average particle size of the polymer fine particles (A) is larger than 50 ⁇ m, the polymerization may become unstable, such as the generation of scale when the polymer particles (C) are produced.
- the powder characteristics tend to be deteriorated, and the molded product obtained from the resin composition containing the polymer particles (C) thus obtained has a poor surface appearance. There is.
- the polymer fine particles (A) have a refractive index (n 25 ) value in the range of 1.350 to 1.650 by adjusting the polymer composition.
- n 25 refractive index
- the polymer fine particles (A) may have a single-layer structure! /,
- the inner layer may be composed of a polymer having a high Tg and the outer layer may be composed of a polymer having a low Tg.
- Cross-link density by each layer such as a structure with different polymer composition, inner layer with lower crosslink density, outer layer with higher crosslink density compared with inner layer, or inner layer is cross-linked but outer layer is non-crosslinked
- a multi-layer structure of two or more layers, such as a different structure, may be employed as appropriate.
- the polymer fine particles (A) can be force-polymerized by a polymerizable monomer generally used in an emulsion polymerization method and a suspension polymerization method. That is, the latex containing the polymer fine particles (A) can be produced by polymerizing a polymerizable monomer described later by a known emulsion polymerization method or suspension polymerization method. However, from the viewpoint of simplicity of the polymerization process, it is particularly preferable to produce by a suspension polymerization method. Further, when the polymer fine particles (A) are polyorganosiloxane polymer fine particles described later, it can be obtained by a method of forcibly emulsifying after solution polymerization.
- the polymer fine particles (A) are: (Meth) acrylic acid alkyl ester polymer fine particles or polyorganosiloxane polymer fine particles are preferred because their homopolymers have a glass transition temperature of 0 ° C. or lower. That is, when a monomer having a glass transition temperature of 0 ° C. or higher is used here, impact resistance may be deteriorated.
- the (meth) acrylic acid alkyl ester-based polymer fine particles have many (meth) acrylic acid alkyl ester-based monomers and two or more polymerizable unsaturated groups in the molecule. Fine particles obtained by polymerizing a functional monomer.
- the polyorganosiloxane polymer fine particles are formed by polycondensation of a modified or non-modified polyorganosiloxane, a cyclic siloxane, and one or more compounds selected from polyfunctional silane force used as necessary. Fine particles are preferred, with low volatile low molecular weight siloxane content. Such polyorganosiloxane polymer fine particles can also be formed by known methods described in, for example, JP-A-11-222554 and JP-A-2001-288269.
- a method for polymerizing the polymer fine particles (A) first, a polymerizable monomer, a poorly water-soluble substance, an oil-soluble polymerization initiator, an emulsifier and a suspension / dispersant comprising Z or a water-soluble polymer compound, and water Next, mechanical shearing is applied to the mixed solution to prepare an OZ W type emulsion, and then the OZW type emulsion thus prepared is introduced into the polymerization apparatus, and then the temperature is further increased.
- a method of polymerizing an OZW type emulsion is preferred.
- a dispersing device capable of adjusting the shear strength in order to control the particle size of the OZW type emulsion, and to adjust the strength. More preferably, the cooling operations are performed in parallel so that polymerization does not start due to heat generated by shearing. Furthermore, in order to obtain an oZw type emulsion having a more uniform particle size distribution, it is preferable to use a membrane emulsification method in which emulsification is performed while passing through a porous structure.
- the properties of the membrane used in this case are as follows. Since the problem of wetting is important, it is preferable to use a hydrophilic membrane in order to make the operation easier.
- the polymerizable monomer may be further added during the polymerization and after Z or after the completion of the polymerization, if necessary.
- the chain transfer agent generally used in the emulsion polymerization method and suspension polymerization method, in which it is preferable to add one or two or more kinds of monomers selected from among them, continuously or intermittently, is used appropriately. You can also
- an anionic emulsifier is used as the suspension dispersant.
- the amount used is preferably about 0.01 to 50 parts by weight, more preferably about 0.01 to 5 parts by weight per 100 parts by weight of the polymerizable monomer.
- the polymerization temperature when polymerizing the polyorganosiloxane fine particles is preferably 0 ° C or higher and 100 ° C or lower, more preferably 50 ° C or lower, and further preferably 30 °. C or less.
- the pH during polymerization is 4 or less, but 3 or less is preferable. Particularly preferably, it is 2 or less.
- the latex is aged at room temperature for several hours or longer as necessary to increase the molecular weight of the polyorganosiloxane, and then sodium hydroxide or potassium hydroxide.
- Siloxane polymerization is stopped by adding inorganic bases such as sodium carbonate and ammonia, and organic bases such as alkylamines and alkyl ammonium hydroxides to neutralize the system to a pH of 5-8. can do.
- the same polymerizable monomer as that used for the production of the polymer fine particles (A) can be used, but it is not necessarily used for the production of the polymer fine particles (A). It is not necessary to use the same kind of the polymerizable monomer, and it can be appropriately selected according to its use and characteristics.
- the polymer particles (C) are used as, for example, a resin modifier, (meth) acrylic acid alkyl ester is used as the polymerizable monomer (B) from the viewpoint of affinity with the matrix resin.
- Monomer, aromatic vinyl monomer, cyanide bulle monomer One, two or more monomers selected from a monomer, vinyl acetate, and vinyl chloride are preferred.
- a chain transfer agent can be appropriately used when polymerizing the polymerizable monomer (B).
- the blending ratio (weight ratio) of the polymer fine particles (A) and the polymerizable monomer (B) is:
- the range of 5:99. 5 to 95: 5 is preferred.
- the range of 2:98 to 85:15 is more preferred. If the amount of the polymer monomer (B) is less than 0.5% by weight and the content of the polymer monomer (B) is more than 99.5% by weight, the content of the polymer fine particles (A) is too low. There is a tendency that the physical properties derived from the polymer fine particles (A) are hardly expressed. If the amount of the polymer fine particles (A) is greater than 95% by weight and the amount of the polymerizable monomer (B) is less than 5% by weight, the polymer fine particles (A) are not taken into the polymer particles (C). ) May cause deterioration of the powder characteristics of the product, such as generation of fine powder.
- a suspension comprising the latex of the polymer fine particles (A), a polymerizable monomer (B), a polymerization initiator, a water-soluble polymer, and a hardly water-soluble inorganic substance.
- flocculant the mixing tank provided with the well-known stirrer etc. which have no restriction
- polymerization apparatus can be used.
- the order in which these components are added and the rate at which they are added depend on the composition of the polymer fine particles (A) or the size of the polymer particles (C) after granulation or suspension polymerization.
- the latex of polymer fine particles (A), the polymerizable monomer (B), polymerization initiator, suspension dispersant, coagulation A method of adding an agent, granulating and suspension polymerization is preferable.
- the production of the polymer fine particles (A) latex and the production of the polymer particles (C) may be produced separately or may be produced consistently.
- the granulation refers to mixing the polymer fine particles (A) by mixing the latex of the polymer fine particles (A), the polymerizable monomer (B), the polymerization initiator, the suspension dispersant, and the coagulant. ) Of the latex, and the dispersion state is transferred to a suspension system having a volume average particle diameter of 100 to 6000 m.
- the polymer fine particles (A) The latex can be efficiently transferred to a suspension system having a volume average particle diameter of 100 to 6000 ⁇ m by this granulation step, and further, this is subjected to suspension polymerization, whereby the polymer particles (C ) Efficiently can do.
- the solid content concentration of the polymerization system after adding the latex of the polymer fine particles (A), the polymerizable monomer (B), the polymerization initiator, the suspension dispersant, and the coagulant is It can be set appropriately depending on the viscosity. However, considering the viscosity of the polymerization system and production efficiency, the solid content concentration is preferably about 15 to 40% by weight.
- the same oil-soluble polymerization initiator as used in the production of the polymer fine particles (A) can be used. However, it is not always necessary to use the same kind of polymerization initiator in the production of the polymer fine particles (A) and the polymer particles (C).
- examples of the suspension dispersant used in the production of the polymer particles (C) include the same compounds as the water-soluble polymer used in the production of the polymer particles (A), and those described later. Yes A material selected from poorly water-soluble inorganic substances is used.
- the amount of the suspension dispersant used can be stably polymerized depending on the amount used in the usual suspension polymerization, and the polymer fine particles (A) It is preferably used in the range of 0.01 to 30 parts by weight, more preferably 0.01 to 20 parts by weight with respect to 100 parts by weight of the total amount of the polymerizable monomers (B).
- Examples of the coagulant used in the production of the polymer particles (C) include acids such as hydrochloric acid and sulfuric acid, calcium chloride, magnesium chloride, sodium sulfate, magnesium sulfate, calcium carbonate, calcium acetate and the like. Those selected are preferably used. Of these, sodium sulfate and calcium chloride are more preferred from the viewpoint of efficiently coagulating the polymer fine particles (A).
- the use amount and type of the coagulant vary depending on the amount and type of the suspension dispersant used in producing the polymer fine particles (A), the preferred amount and type are appropriately selected. be able to. However, for example, it is used in the range of 0.1 to 20 parts by weight with respect to 100 parts by weight of the total amount of the polymer solid (A) latex solids and the polymerizable monomer (B). Further preferably, 0.1 to 15 parts by weight is more preferable.
- emulsion polymerization method or suspension polymerization method described above include JP-A-63-137911, JP-A-2-311685, JP-A-7-238200, JP-A-8-.
- Preferred examples include the methods described in 198903, JP 2001-294631, JP 10-87710, JP 10-120714, or JP 10-120715.
- the polymerizable monomer is, for example, selected from (meth) acrylic acid alkyl ester monomers, aromatic vinyl monomers, vinyl cyanide monomers, vinyl acetate, and vinyl chloride.
- One or two or more types of monomers are exemplified, and in addition to these, a single monomer that also has a polyfunctional monomer power having two or more polymerizable unsaturated groups in the molecule
- the body can be preferably used.
- a polymerizable monomer in the case of polymerizing the polyorganosiloxane polymer fine particles one or more compounds selected from modified or non-modified polyorganosiloxane, cyclic siloxane, and polyfunctional silane force are used. Is preferably exemplified.
- Examples of the (meth) acrylic acid alkyl ester monomer include methyl (meth) acrylate,
- Examples thereof include ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, n-octyl (meth) acrylate, and 2-ethylhexyl (meth) acrylate.
- aromatic butyl monomer styrene examples include ⁇ -methylstyrene, chlorostyrene, and chloromethylstyrene.
- cyanide bur-based monomer examples include acrylonitrile, methacrylic-tolyl, and ethacrylo-tolyl.
- Examples of the monomer composed of a polyfunctional monomer having two or more polymerizable unsaturated groups in the molecule include (meth) acrylic acid allyl, phthalic acid diaryl, di (meth) acrylic acid. Examples include ethylene glycol, 1,3-butylene glycol di (meth) acrylate, diallyl itaconate, dibenzene, triarylcyanurate, triallyl isocyanurate, and the like.
- the modified or non-modified polyorganosiloxane is linear or branched, has a hydrolyzable group at the terminal, and is partially substituted with a radical reactive group as necessary. Are preferred.
- the content of the volatile low molecular weight siloxane is preferably 5% by weight or less, more preferably 1% by weight or less.
- the weight average molecular weight (Mw) is preferably 20,000 or less, more preferably 10,000 or less, still more preferably 5,000 or less, and particularly preferably 2,500 or less.
- hydrolyzable group examples include a hydroxyl group, an amino group, or an alkoxyl group, an acyloxy group, a ketoxime group, an alkenoxy group, an amide group, and an aminoxy group.
- Preferred examples of the radical reactive group include a mercaptopropyl group, a methacryloyloxypropyl group, an allyloyloxypropyl group, a bur group, a vinylphenyl group, and an aryl group.
- cyclic siloxane examples include hexamethylcyclotrisiloxane, otamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexadioxane, tetradecamethylcycloheptasiloxane, and the like. it can.
- polyfunctional silane examples include trifunctional or higher functional alkoxysilanes, trifunctional or higher functional silane condensates, and silane compounds having radical reactive groups.
- the trifunctional or higher functional alkoxysilane is methyltriethoxysilane, tetrapropyloxysilane or the like
- the trifunctional or higher functional silane condensate is methyl orthosilicate or the like, and the radical reactive group.
- the silane compound having a carboxylic acid include mercaptopropyldimethoxymethylsilane, acryloyloxypropyldimethoxymethylsilane, methacryloyloxypropyldimethoxymethylsilane, vinyldimethoxymethylsilane, and vinyldimethoxymethylsilane. it can.
- chain transfer agent examples include those generally used in emulsion polymerization methods and suspension polymerization methods.
- t-decyl mercaptan examples include mercaptans, alkyl mercaptans such as n-decyl mercaptan and n-octyl mercaptan, and alkyl ester mercaptans such as 2-ethylhexylthioglycolate.
- a substance having a solubility in water of 20 ° C. of 0.05% by weight or less and a molecular weight of 20,000 or less can be preferably used.
- stearyl methacrylate, dinonyl methacrylate methacrylate (Meth) acrylic acid alkyl ester monomers having a long-chain alkyl group having 12 to 30 carbon atoms such as cetyl alcohol, stearyl alcohol, etc.
- AA—6 (manufactured by Toa Gosei Chemical Co., Ltd.) with methyl methacrylate and a methacryloyl group at the end and a number average molecular weight of 6,000, or the main component of the segment is acrylic AB-6 with a number average molecular weight of 6,000 having a terminal acryloyl group in butyl phosphate (manufactured by Toa Gosei Kagaku Kogyo Co., Ltd.), and the like are terminated with a (meth) atalyloyl group, a p-styrylalkyl group, Various macromonomers having dihydroxyl group or dicarboxyl group
- Isotropic One or a combination of two or more selected can be used.
- the polymer particles (C) obtained according to the present invention are used as a resin modifier, non-polymerization of higher alcohols, hydrocarbons, halogenated hydrocarbons, etc. as poorly water-soluble substances. If a water-soluble compound is used, problems such as gas generation during molding and excessive lubricity may occur due to the poorly water-soluble substance remaining in the polymer particles. In order to solve this problem, it is preferable to use a polymerizable poorly water-soluble substance having at least one polymerizable unsaturated group in the molecule.
- Organic peroxides such as benzoyl peroxide, lauroyl peroxide, stearoyl peroxide, and otatanyl peroxide, 2, 2'-azobisisobutyro-tolyl, 2, 2 '—azobis (2, 4— Dimethyl barre mouth-tolyl), 2, 2 '—azobis ( 4-methoxy-1,2,4-dimethylvale-tolyl), 2,2'-azobis (2-methylbuty-to-tolyl), etc. It can be used suitably.
- oil-soluble polymerization initiator for example, sodium nitrite is used in order to prevent polymerization from starting in an aqueous phase rather than in an oil droplet containing a polymerizable monomer.
- Water-soluble polymerization inhibitors such as quinone and idroquinone can be used in combination as required.
- the suspension dispersant is used for the preparation of emulsion.
- emulsifiers and Z or water-soluble polymer compounds can be used.
- the following emulsifiers and water-soluble polymer compounds can be used alone.
- two or more types can be used in combination, and the emulsion can be stably prepared and used for polymerization in the amount used in the usual suspension polymerization.
- emulsifiers examples include erone emulsifiers and noone emulsifiers.
- anionic emulsifier examples include a carboxylic acid emulsifier, a sulfonic acid emulsifier, a sulfuric acid emulsifier, a succinic acid emulsifier, and a phosphoric acid emulsifier.
- nonionic emulsifier examples include polyoxyalkylene alkyl ethers typified by polyoxyethylene dodecyl ether and the like, polyoxyalkylene alkyl aryl ethers typified by polyoxyethylene nonyl phenyl ether and the like, and polyoxyethylene.
- examples include polyoxyalkylene higher fatty acid esters represented by stearic acid esters and the like, and sorbitan monolauric acid esters.
- metal-based emulsifiers such as metal salts of alkylsulfuric acid esters, metal salts of alkylsulfonic acids, and metal salts of alkylarylsulfonic acids.
- the preferred metal salts are alkali Metal salts, particularly sodium salts and potassium salts, and sodium dodecylbenzenesulfonate is most preferred, with sodium salts being more preferred.
- the above-mentioned non-one emulsifiers can also be used, and these and the anion emulsifiers are used in combination. You can also do it.
- water-soluble polymer compound examples include natural water-soluble polymers such as starch and gelatin, polybulualcohol, polybulupyrrolidone, polyacrylic acid salt, polymethacrylic acid salt, polyvinylinoatenole, polyethylene oxide, methylcellulose, Examples include hydroxymethyl cellulose, hydroxypropinoremethinoresenorelose, canoleboxoxymethinoresenellose, snolephone polystyrene glycol, styrene-maleic acid copolymer, and acetic acid-bromaleinic acid copolymer. .
- Examples of the poorly water-soluble inorganic substances include phosphoric acid metal salts such as tricalcium phosphate and calcium hydroxyphosphate, and magnesium carbonate, calcium carbonate, barium carbonate, magnesium oxide, calcium pyrophosphate, magnesium pyrophosphate, magnesium hydroxide, and hydroxide. Examples thereof include aluminum halide, hydroxyapatite, and talc.
- inorganic acids such as sulfuric acid, hydrochloric acid and nitric acid
- organic acids such as dodecylbenzenesulfonic acid, dodecylsulfuric acid and trifluoroacetic acid can also be used.
- Alkylaryl sulfonic acid represented by dodecylbenzenesulfonic acid is preferably used because it has not only an acid component but also a function as an emulsifier, and in some cases, it may be used alone.
- the acid and the emulsifier may be either a single component or a combination of a plurality of components.
- the dispersing device examples include a high-pressure homogenizer, a homomixer, and an ultrasonic dispersion.
- a known dispersing device such as a device or a centrifugal pump can be suitably used, and it is preferable that a cooling mechanism capable of performing the cooling operation is provided.
- the membrane emulsification method includes a mechanism, specifically, a plate-like or tubular porous structure as a part thereof.
- the porous structure is not particularly limited as long as it is a porous film having a uniform pore diameter, and other than that, as long as it is a structure having a large number of pores.
- the porous structure is hydrophilic porous. Examples include structures and hydrophobic porous structures. Examples of the hydrophilic porous structure include a porous glass membrane, a hydrophilic polytetrafluoroethylene (PTFE) membrane, a cellulose acetate membrane, a nitrocellulose membrane, and a hydrophilic metal porous structure.
- PTFE polytetrafluoroethylene
- Bodies such as cause mazeller, ramondos per mixer, etc.
- the hydrophobic porous structure a hydrophobic PTFE membrane, and various kinds of porous membranes and porous structures described above are subjected to surface treatment, etc.
- Examples thereof include water-phobic cakes obtained or water-repellent membranes obtained by treatment such as impregnation of a membrane with oils and fats.
- Preferred U and thermoplastic resins that can be used as the base resin (D) include polycarbonate resins such as aromatic polycarbonates and aliphatic polycarbonates, polyester resins, polyester carbonate resins, and polyphenylene ethers. Resin, polyphenylene sulfide resin, polysulfone resin, polyethersulfone resin, polyarylene resin, polyamide resin such as nylon, polyetherimide resin, polyacetal resin such as polyoxymethylene, polybula Setar resin, Polyketone resin, Polyetherolene resin, Polyetheretherketone resin, Polyarylketone resin, Polyether-tolyl resin, Liquid crystal resin, Polybenzimidazole resin, Polyparabanic acid resin, It is a bulle polymer or copolymer rosin.
- polycarbonate resins such as aromatic polycarbonates and aliphatic polycarbonates
- polyester resins polyester carbonate resins
- polyphenylene ethers Resin, polyphenylene sulfide resin, polysulfone
- EPDM ethylene propylene gen
- a transparent resin D
- Polycarbonate resin such as aliphatic polycarbonate, aliphatic polycarbonate, polyester resin, polybutylacetal resin, aromatic alcohol compound, methacrylic ester, acrylate ester and cyanobi-louis compound
- Transparent cellulose such as vinyl polymer or copolymer resin obtained by polymerizing or copolymerizing one or more types of selected bule monomers, transparent polyolefin such as polypropylene, chlorinated resin, and acetyl cellulose Examples include rosin. These can be used alone or as a blend of two or more.
- the polyphenylene ether resin is a homopolymer or copolymer represented by the following general formula 1.
- polyphenylene ether resin examples include poly (2,6 dimethyl-1,1,4-phenol) ether, poly (2-methyl-6propyl-1,4, phenylene) ether, poly (2 , 6 Jetyl 1,4 Phenyl) ether, Poly (2 Ethyl-6 propyl —1,4 Phylene) ether, Poly (2,6 Dipropyl mono 1,4 Phylene) ether, (2,6 Dimethyl) — Copolymers of (1, 4 phenylene) ether and (2, 3, 6 trimethyl-1, 4, 4-phenylene) ether, (2, 6 jetyl 1, 4 phenylene) ether and (2, 3 , 6 Trimethyl-1, 4 -phenylene) ether copolymer of (2, 6 dimethyl 1, 4 phenol) ether and (2, 3, 6 triethyl 1, 4 phenol) ether A copolymer etc. are mentioned.
- poly (phenylene ether) resins are compatible with polystyrene resins at all blending ratios.
- degree of polymerization of the polyphenylene ether resin used in the present invention there is no particular limitation on the degree of polymerization of the polyphenylene ether resin used in the present invention, but 0.2 g of resin is dissolved in 100 cm 3 of black mouth form, and the solution is measured at 25 ° C. Those having a viscosity of 0.3 to 0.7 dlZg are preferably used. If the reduced viscosity is less than 0.3 dlZg, the thermal stability may deteriorate, and if it exceeds 0.7 dlZg, the moldability may be impaired.
- These poly (phenylene ether) resins can be used alone or in admixture of two or more.
- the polyphenylene ether resin can be used by mixing with other resins, and preferably used by mixing with the polystyrene resin described below.
- the mixing ratio of the polyphenylene ether resin and the other resin when used in combination with another resin can be set within a known range.
- the salt-bulb resin is a vinyl chloride homopolymer resin, a chlorinated salt resin resin, a chlorinated polyethylene resin, or a double bond capable of copolymerizing with a salt vinyl resin. It is a copolymer resin of a salt monomer and at least one other bulle monomer. The amount of the other vinyl monomer is preferably 50% by weight or less, more preferably 45% by weight or less in the case of the copolymer resin with the salt mulberry. Examples include ethylene, propylene, butyl acetate, (meth) acrylic acid and esters thereof, maleic acid and esters thereof, vinylidene chloride, vinyl bromide, and acrylonitrile.
- salt-bulb resins are obtained by homopolymerization or copolymerization of salt-vinyl alone or salt-bulb and the other vinyl monomer in the presence of a radical polymerization initiator. It is obtained.
- the degree of polymerization of this salt-bulb resin is usually 400 to 4500, and particularly preferred is a range of 400 to 1500! [0124] (Vinyl polymer or copolymer resin)
- the bull polymer or copolymer resin may be copolymerized with a gen-based monomer, an olefin-based monomer, a maleimide-based monomer, or the like.
- a gen-based monomer an olefin-based monomer, a maleimide-based monomer, or the like.
- polystyrene resin s polystyrene resin, polymethylmethacrylate resin, polychlorostyrene resin, polybromostyrene resin, polymethylstyrene resin, styrene-acrylonitrile copolymer resin, styrene Monomethyl methacrylate copolymer resin, acrylonitrile monostyrene monomethyl methacrylate copolymer resin, styrene-maleic anhydride copolymer resin, styrene maleimide copolymer resin, styrene
- N-phenolmaleimide copolymer resin N-phenolmaleimide copolymer resin, styrene N-phenolmaleimide-atari mouth-tolyl copolymer resin, methyl methacrylate-butyl acrylate copolymer resin, methyl methacrylate-ethyl acrylate copolymer resin, Styrene-acrylonitrile- a- methylstyrene terpolymer copolymer, butadiene-styrene copolymer (HIPS) resin containing gen-based or phenylmaleimide components, acrylonitrile-butadiene rubber-styrene copolymer ( ABS) resin, acrylonitrile-butadiene rubber- a -methyl styrene copolymer resin, aromatic alkenyl compound Gencianyl bur N-vinyl maleimide copolymer resin.
- HIPS butadiene-styrene copolymer
- polyamide resin examples include polyamide resin derived from diamine and dicarboxylic acid, polyamide resin obtained by ring-opening polymerization of ratatas, 6-aminocaproic acid, 1,1-aminoundecanoic acid, 1, 2 —Aminododecanoic acid and other polyamides, and their copolymers or blends are included, among which nylon 6, nylon 6, 6, nylon 11, nylon, which are industrially inexpensive and manufactured in large quantities 12, Nylon 6, 10, Nylon 4, 6, and copolymers thereof, or blends thereof are preferred.
- the diamine is an aliphatic, cycloaliphatic or aromatic diamine, ethylene diamine, tetramethylene diamine, hexamethylene diamine, decamethylene diamine, dodecamethylene diamine. 1, 2, 4, 4 and 2, 4, 4 trimethylhexamethylenediamine, 1,3-bis (aminomethyl) cyclohexane, 1,4 bis (aminomethyl) cyclohexane, bis (P —Aminocyclohexyl) methane, m-xylylenediamine, p-xylenediamine, etc. Can be mentioned.
- dicarboxylic acid examples include aliphatic, alicyclic, or aromatic dicarboxylic acids such as adipic acid, suberic acid, sebacic acid, cyclohexanedicarboxylic acid, terephthalic acid, and isophthalic acid.
- Examples of the ratatam include ⁇ -force prolatatam and ⁇ -dodecalactam.
- polyester resin examples include a resin obtained by polycondensation of a dicarboxylic acid or a dicarboxylic acid derivative such as an alkyl ester and a diol, or a hydroxyl group, a carboxylic acid or a carboxylic acid in one molecule.
- examples thereof include a resin obtained by polycondensation of a monomer having both a derivative such as an alkyl ester and ring-opening polymerization of a monomer having a cyclic ester structure in one molecule.
- Examples of the dicarboxylic acid include terephthalic acid, isophthalic acid, adipic acid, and sebacic acid.
- Examples of the diol include ethanediol, propanediol, butanediol, pentanediol, and hexanediol.
- Examples of the monomer having both a hydroxyl group and a derivative such as carboxylic acid or an alkyl ester of carboxylic acid in the molecule include hydroxyalkanoic acids such as lactic acid and hydroxypropionic acid. .
- Examples of the monomer having a cyclic ester structure in one molecule include force prolatatone.
- polyester resin examples include polymethylene terephthalate, polyethylene terephthalate, polypropylene terephthalate, polytetramethylene terephthalate, polybutylene terephthalate, polyhexamethylene terephthalate, polyethylene naphthalate, polylactic acid, Powers exemplified by polyhydroxybutyric acid, polybutylene succinate, poly ⁇ -strength prolatatone, poly (a-oxy acid) and copolymers thereof, and blends thereof.
- excellent optical properties and Polybutylene terephthalate, polyethylene terephthalate, and polylactic acid are particularly preferred from the viewpoint of processability.
- the polyphenylene sulfide resin includes a repeating unit represented by the following general formula 2.
- a polymer having a polymerization degree of 80 to 300 having 50 mol% or more, preferably 70 mol% or more is preferred.
- a force including a component having a repeating unit represented by the following general formula 3 is preferable.
- These copolymer components are preferably 10 mol% or less.
- R represents an alkyl group, a nitro group, a phenol group, an alkoxy group, a carboxylic acid group, or a metal salt of rubonic acid
- the polysulfone rosin which is a polymer containing a SO— group, is roughly classified into an aromatic resin and an olefin resin.
- a polymer having a repeating unit represented by the following general formula 4 obtained by polycondensation reaction of dichlorodiphenylsulfone, dichlorodiphenylsulfone and bisphenol A force obtained by the following general formula 5
- polymers having the repeating units shown the former is called polyether sulfone resin and the latter is called polysulfone resin, which are useful in the present invention.
- polyetherimide resin examples include a polymer having a repeating unit represented by the following general formula 6 having an ether bond and an imide bond.
- polybulassetal resin examples include polyburformal and polybulbutyral, which are polybulal alcohols modified with aldehydes.
- polystyrene resin examples include polyethylene, polypropylene, and polymethylpentene.
- Polymers such as polybutene, cycloolefin, etc., or olefin-only polymers represented by copolymers, can be mentioned, but only these are copolymers of olefin and a compound having at least one copolymerizable double bond.
- Polymers are also included as rosins that can be used as (D) in the present invention.
- the compound copolymerizable with the olefin include (meth) acrylic acid and its ester, maleic acid and its ester, maleic anhydride, and butyl acetate.
- the polyolefin resin that can be used in the present invention is a copolymer obtained by hydrogenating a copolymer of a gen-based component and another vinyl monomer, such as an acrylonitrile-EPDM-styrene copolymer.
- This concept includes polymer (AES) resin.
- the degree of polymerization of such a polyolefin resin is preferably in the range of 300 to 6000.
- polyarylene resin examples include poly (p-phenylene), poly (2,5-cerene), poly (1,4-naphthalene diyl), and the like.
- the polycarbonate resin is obtained by reacting divalent phenol with phosgene or a carbonate precursor.
- the divalent phenol is preferably a bis (hydroxyaryl) alkane, such as bis (hydroxyphenol) methane, 1,1-bis (4-hydroxyphenol) ethane, 1, 2 — Bis (4-hydroxyphenol) ethane, 2, 2-bis (hydroxyphenol) propane, 2, 2 —bis (4-hydroxyphenol) 3-methylphenol) propane, 2, 2— Bis (4-hydroxy-1,3,5-dibromophenol) propane, 2,2-bis (4-hydroxy-1,3,5-dichlorophenol) propane, 2,2-bis (hydroxyphenol) Hexafluoropropane and the like can be mentioned.
- bis (hydroxyaryl) alkane such as bis (hydroxyphenol) methane, 1,1-bis (4-hydroxyphenol) ethane, 1, 2 — Bis (4-hydroxyphenol) ethane, 2, 2-bis (hydroxyphenol) propane, 2, 2 —bis (4-hydroxyphenol) 3-methylphenol) propane, 2, 2— Bis (4-hydroxy-1,3,5-dibromophenol) propane, 2,2-bis (4-hydroxy-1,3,
- divalent phenols include 1,1-bis (4-hydroxyphenol) cyclohexane; 1,1-bis (4-hydroxyphenol) -1,3,3,5-trimethylcyclohexane; 1 , 1-bis (4-hydroxyphenol) cycloalkane and other bis (4-hydroxyphenol) cycloalkanes, 1,1-bis (4-hydroxyphenol) phenolic len; 1,1-biscresol Funoleolene; 1 , 1 Fluorene derivatives such as bisphenoxyethanol fluorene, phenol bis (hydroxyphenyl) methane; diphenylbis (hydroxyphenol) methane; 1-phenyl 1, 1 bis (4-hydroxyphenol) Phenyl group-containing bis (hydroxyphenol) alkane, 4,4'-dihydroxydiphenyl, bis (4-hydroxyphenol) oxide, bis (4-hydroxyphenol) sulfide, Bis (4 hydroxyphenol) snorephone, bis (4-hydroxyphenol) sulfoxide, bis (4-hydroxyphenol) ketone, Hyde mouth quin
- divalent phenols are used alone or in combination. Of these, it is preferable to use a divalent phenol that does not contain a neurogen because of its excellent safety and optical properties.
- Particularly preferred dihydric phenols are bis (hydroxyphenol) methane, 2,2, -bis (hydroxyphenol) pronone, and 1,1 bis (4-hydroxyphenol) phenololene.
- Examples of the carbonate precursor include diaryl carbonates such as diphenyl carbonate, and dialkyl carbonates such as dimethyl carbonate and jetyl carbonate.
- an aromatic polycarbonate resin such as polyethylene carbonate can also be used.
- These polycarbonate resins may be those in which dimethylsiloxane is copolymerized in the main chain.
- polyketone examples include an alternating copolymer of ethylene and carbon monoxide and an alternating copolymer of ⁇ -olefin and carbon monoxide.
- thermosetting resin the resin composition of the present invention is used for applications that require light diffusibility and light transmission Examples include epoxy resin, polyamideimide resin, thermosetting polyester resin (unsaturated polyester resin), silicone resin, urethane resin, (meth) acrylic resin, and fluorine resin.
- thermosetting substrate resin (D) a phenol resin, urea resin, melamine resin, polyimide resin, alkyd resin, polybyl ester resin Fatty acid, diallyl polyphthalate resin, bismaleimide-triazine resin, furan resin, xylene resin, guanamine resin, maleic resin, dicyclopentadiene resin, and polyether resin can be used.
- epoxy resin in an amount of 50% by weight or more based on the total amount of the thermosetting resin, because these epoxy resins are phenol novolac and the like. It can also be cured using phenolic rosin, aliphatic amines, aromatic amines, or carboxylic acid derivatives such as acid anhydrides and blocking power rubonic acid. Among these, it is more preferable to use phenol resin from the viewpoint that the obtained cured product has high heat resistance.
- the epoxy resin is a diglycidyl ether of biphenol or aromatic nucleus-substituted biphenol, or a condensate thereof, a novolac epoxy resin, a dicyclopentagel epoxy resin, and one molecule. It is one or more epoxy resins selected from alicyclic epoxy resins containing a cyclolephoxide structure skeleton.
- epoxy resin that can be used for the base resin (D) of the present invention a novolac type epoxy resin, biphenyl type epoxy resin, or alicyclic epoxy resin is generally used. Any epoxy resin that can be used can be used.
- the novolac type epoxy resin is a phenol novolac type epoxy resin, a cresol novolac type epoxy resin, etc., which is a product obtained by condensing phenols, biphenols, or naphthols with aldehydes.
- the novolak resin obtained in this way is obtained by glycidyl ether.
- the biphenyl-type epoxy resin is, for example, 2, 2, 6, 6, 6, monotetramethylbiphenol diglycidyl ether.
- the alicyclic epoxy resin contains polyphenols, polyglycidyl ethers of polyhydric alcohols, or their condensates, or a cycloolefin oxide structure skeleton in one molecule. It is an alicyclic epoxy resin.
- the polyvalent phenols include biphenol, aromatic nucleus-substituted biphenols, bisphenol A, bisphenol F, bisphenol S, trimethylolpropane, and the like.
- Preferred elastomers that can be used as the base resin (D) include natural rubber or synthetic rubber.
- volume average particle diameter and the amount of fine powder of 50 ⁇ m or less were measured with a Microtrac particle size analyzer Model 9220FRA (Nikkiso Co., Ltd.) according to the measurement method specified in JIS Z8901, or an optical microscope. This was done by image analysis of 100 randomly selected particles.
- the degree of turbidity of the filtrate after polymerization of the erasable polymer particles (C) can be determined by observing the filtrate of the slurry filtered using qualitative filter paper No. 2 manufactured by Advantech Toyo Co., Ltd. Confirmed.
- the light transmittance is determined by measuring the total light transmittance using an integrating sphere type light transmittance measuring device (NDH2000 manufactured by Nippon Denshoku Industries Co., Ltd.) in accordance with the measurement method defined in JIS K7361-1. Yo Evaluated.
- Glossiness should be measured with a gloss meter (BYK Gardner, Micro-TRI-gloss) according to ASTM D-523 standard measurement method, at a 60 degree angle of incidence. Evaluated from Yuko.
- the Gardner impact test was measured under the conditions of 23 ° C, relative humidity 50%, 81bs (unit: inch. LbZmil) according to the measurement method specified in ASTM D-4226.
- the powder characteristics of the resin composition were evaluated based on the handleability during work. In other words, it was marked as ⁇ when there was almost no dusting when handling the greave composition, and as X when severe.
- MMA is methyl methacrylate
- BA is butyl acrylate
- PMMA is polymethyl methacrylate
- description of MB is methyl methacrylate-butyl acrylate copolymer
- PC is polycarbonate
- PVC is polychlorinated butyl
- Si is polyorganosiloxane.
- Production Example 1 is a methyl methacrylate-butyl acrylate copolymer used as a base resin (D) in Examples 16 and 17 and Comparative Examples 9 and 10. MB) production example.
- Production Example 2 is a production example of the impact resistance improver used in Examples 16 and 17, and Comparative Examples 9 and 10.
- Examples 2 and 3 and Comparative Examples 1 and 2 are polymer particles (A) containing BA as a main component, and Example 4 is a polymer particle containing MMA as a main component ( A), and Example 5 is polio
- the present invention relates to polymer particles (A) mainly composed of luganosiloxane (Si), and further to a method for producing polymer particles (C) produced by further polymerizing MMAZBA using each polymer particle (A).
- Examples 6 to 15 and Comparative Examples 3 to 8 relate to a molded article comprising a light diffusing resin composition and a light diffusing resin composition.
- Examples 6 to 8 and Comparative Examples 3 and 4 are polymethylmethallate resin (PMMA),
- Examples 9 to 11 and Comparative Examples 5 and 6 are methylmetatalate monostyrene copolymer resins.
- MS Examples 12 to 15, and Comparative Examples 7 and 8 are examples in which a molded product was obtained from a resin composition using polycarbonate resin (PC).
- Examples 16 to 23 and Comparative Examples 9 to 16 relate to an erasable resin composition and a molded article obtained from the erasable resin composition, as a base resin (D).
- Examples 16 and 17, Comparative Examples 9 and 10 are methyl methacrylate-butyl acrylate copolymer (MB),
- Examples 18 and 19 are Comparative Examples 11 and 12, and ABS Fats,
- Examples 20 and 21, and Comparative Examples 13 and 15 were hard salted and swelled, and Examples 20 and 21 and Comparative Examples 13 and 15 were soft and salted
- a molded product was obtained with a rosin composition using rosin.
- Examples 6, 9, 12, 16, 18, 20, and 22 are obtained by replacing the polymer particles (C) obtained in Example 1 with Examples 7, 10, 13, 17 , 19, 21, and 23 are the polymer particles (C) obtained in Example 4, and Examples 8, 11, 14, and 15 are the polymer particles (C) obtained in Example 5.
- Comparative Examples 3, 5, and 7 are commercially available light diffusing agents in place of the polymer particles (C)
- Comparative Examples 9, 11 and 13 are commercially available particles in place of the polymer particles (C).
- the eraser and Comparative Examples 4, 6, 8, 10, 12, 14, and 16 are examples in which molded articles were obtained without using the polymer particles (C).
- each Example and each Comparative Example the resin composition used for molding is shown in Tables 1 and 2, and the evaluation results of the obtained molded products are shown in Table 3 and Table 4, respectively. Moreover, it describes below about the detail of each Example and each comparative example.
- Example 6 BA 5.1 MMA / BA 330 0 2 PMMA Actual m] 3 ⁇ 4 Example 7 MMA 2.7 A BA 210 2 2 PA Actual 8 Si 8.6 MA / BA 250 0 1 PM A ratio 3 ⁇ 4 Example 3 MBX-5 5 100 2 PMMA Comparative Example 4 0 PMMA
- Example 1 0 70 1.0
- MB methyl methacrylate-butyl acrylate copolymer
- the remaining 75% by weight of the innermost layer forming mixture was continuously added over 1 hour.
- the polymerization was completed by keeping 0.2 parts by weight of sodium N-lauroyl sarcosinate for 2 hours at the same temperature.
- the volume average particle diameter of the polymer particles in the crosslinked methacrylic polymer latex thus obtained was 1600 A as measured by light scattering using light having a wavelength of 546 nm. Further, the polymerization conversion rate in this polymerization ((polymer production amount Z monomer charge amount) X 100) was 98%.
- the volume average particle diameter of the polymer particles in the rubber-like polymer latex having the structure in which the innermost layer is covered with the intermediate layer thus obtained is 2300A, and the polymerization conversion rate is 99. In%. (c) Polymerization of outermost layer
- the volume average particle diameter of the polymer particles in this three-layer structure graft copolymer latex was 2530 A, and the polymerization conversion rate was 99%.
- the resulting three-layer graft copolymer latex was subjected to salting out coagulation, heat treatment, and drying by a known method to obtain a white powdery three-layer copolymer as an impact resistance improver. .
- Polymer fine particles (A) having a thickness of 1 mm were obtained by adding a calcium chloride aqueous solution to the polymer fine particles (A) from which a part of the latex was taken out, salting out, and filtering.
- a calcium chloride aqueous solution was added to the polymer fine particles (A) from which a part of the latex was taken out, salting out, and filtering.
- Abbe refractometer Abago Inc. Abbe Refractometer 2T
- polymer particles (C) had a volume average particle size of 330 m, the amount of fine powder of 50 m or less was 0% by weight, and the filtrate after polymerization was colorless and transparent.
- polymer fine particles In the production of polymer fine particles (A), polymer fine particles were prepared in the same manner as in Example 1 except that mechanical shear was applied for 2 minutes at a speed of 4, OOOrpm by TK Robomix to prepare OZW type emulsion. (A) and polymer particles (C) were produced.
- the obtained polymer fine particles (A) had a volume average particle diameter of 22.2 ⁇ m, and the polymer particles (C) had a volume average particle diameter of 360 / ⁇ ⁇ , and a fine powder amount of 50 m or less.
- the filtrate after polymerization was colorless and transparent.
- Example 2 In the same manner as in Example 1, an OZW type emulsion was prepared. Next, as in Example 1, this preparation was carried out in a glass reactor charged with 210 parts by weight of water, 0.01 part by weight of sodium nitrite, and 0.05 part by weight of sodium dodecylbenzenesulfonate. The dispersion containing the emulsion was collected and heated to 65 ° C with stirring in a nitrogen stream, Was kept at 65 ° C and stirred for 30 minutes.
- polybulal alcohol KH-17 as a suspension dispersant was added and stirred for 20 minutes, and then heated to 80 ° C. over 4 hours. Thereafter, the system temperature was kept at 80 ° C. and stirred for 1 hour to obtain polymer particles (C).
- the obtained polymer particles (C) had a volume average particle diameter of 3100 m, the fine powder amount of 50 m or less was 0% by weight, and the filtrate after polymerization was colorless and transparent.
- This mixture was mechanically sheared with TK Robomix at a speed of 6, OOOrpm for 20 minutes to prepare an OZW type emulsion. Transfer the entire amount of the dispersion containing the prepared OZW emulsion to a glass reactor and stir in a nitrogen stream. The temperature was increased to 65 ° C. Subsequently, the temperature of this system was kept at 65 ° C. and stirred for 5 hours to obtain a polymer system containing polymer fine particles (A) latex having a volume average particle diameter of 2.7 ⁇ m.
- Polymer fine particles (A) having a thickness of 1 mm were obtained by adding a calcium chloride aqueous solution to the polymer fine particles (A) from which a part of the latex was taken out, salting out, and filtering.
- the result of measuring the refractive index at 25 ° C. using an Abbe refractometer (Abago Inc. Abbe Refractometer 2T) was 1.490.
- the polymer particles (C) of Example 4 were produced in the same manner as the production of the polymer particles (C) of Example 1.
- the obtained polymer particles (C) had a volume average particle size of 210 m, the amount of fine powder of 50 m or less was 2% by weight, and the filtrate after polymerization was colorless and transparent.
- this siloxane emulsion was quickly charged all at once into a flask equipped with a stirrer, a reflux condenser, a nitrogen inlet, a monomer outlet, and a thermometer.
- the system was reacted at 30 ° C for 6 hours while stirring.
- the pH of the system was returned to 6.8 with sodium hydroxide to terminate the polymerization, and the polyorganosiloxane having a volume average particle size of 8.6 ⁇ m Polymer particles (A) latex were obtained.
- the result of measuring the refractive index at 25 ° C. using an Abbe refractometer (Abago Co., Ltd. Abbe Refractometer 2T) was 1.402.
- the polyorganosiloxane polymer particles (A) in 70 parts by weight (solid content) of latex Water was added so that the final solid content concentration was about 20% by weight, and the temperature was raised to 40 ° C. under a nitrogen stream while stirring.
- 0.1 parts by weight of sodium formaldehyde sulfoxylate, 0.22 parts by weight of ethylenediamine 4-acetic acid, 0.26 parts by weight of ferrous sulfate, and 0.77 parts by weight of ferrous sulfate are added.
- After mixing 0.025 parts by weight of the part and tamennoid mouth peroxide they were added all at once and stirring was continued at 40 ° C for 1 hour.
- polymer fine particles (A) In the production of the polymer fine particles (A), the same procedure as in Example 1 was applied except that mechanical shear was applied for 2 minutes at a speed of 2, OOOrpm by TK Robotics to prepare an OZW type emulsion. Combined fine particles (A) and polymer particles (C) were produced. The obtained polymer fine particles (A) had a volume average particle size of 60 ⁇ m. In this case, a large amount of scale was generated during the production of polymer particles (C) having poor polymerization stability.
- the polymer fine particles (A) and the polymer particles (C) were prepared in the same manner as in Example 1 except that sodium sulfate as a coagulant was not added. Manufactured.
- the obtained polymer fine particles (A) had a volume average particle diameter of 5.1 ⁇ m.
- a large amount of polymer fine particles (A) were present that were not taken into the polymer particles (C) during the production of the polymer particles (C). Therefore, the polymer particles (C) contained 90% by weight of fine powder of 50 m or less, so that the product powder characteristics were greatly deteriorated compared with those obtained in Example 1.
- Polymethylmetatalylate resin (Cyro, Atarilite H-12, n 25 : 1.489, 3mm
- a molded product was obtained in the same manner as in Example 6, except that the polymer fine particles (C) obtained in Example 4 were used instead of the polymer particles (C) obtained in Example 1.
- Example 6 a molded article was obtained in the same manner except that 1 part by weight of the polymer fine particles (C) obtained in Example 5 were used instead of the polymer particles (C) obtained in Example 1. It was.
- Example 6 instead of the polymer particles (C) obtained in Example 1, Sekisui Chemicals Co., Ltd. light diffusing agent (crosslinked polymethyl methacrylate resin, techpolymer MBX-5, average A molded product was obtained in the same manner except that a particle size of 5 m, n 25 : 1. 490) was used.
- light diffusing agent crosslinked polymethyl methacrylate resin, techpolymer MBX-5, average A molded product was obtained in the same manner except that a particle size of 5 m, n 25 : 1. 490
- a molded product was obtained in the same manner as in Example 6 except that the polymer particles (C) were not used.
- Methyl metatalylate-styrene copolymer resin manufactured by Nippon Steel Chemical Co., Ltd., Estyrene MS MS-600, n 25 : 1. 530, 3mm-thick molded product 99.1% ) 100 parts by weight,
- a molded product was obtained in the same manner as in Example 9, except that the polymer fine particles (C) obtained in Example 4 were used instead of the polymer particles (C) obtained in Example 1.
- Example 9 a molded article was prepared in the same manner except that 0.1 part by weight of the polymer fine particles (C) obtained in Example 5 were used instead of the polymer particles (C) obtained in Example 1.
- Example 9 instead of the polymer particles (C) obtained in Example 1, a light diffusing agent manufactured by Sekisui Plastics Co., Ltd. (cross-linked polymethyl methacrylate resin, techpolymer MBX-5, average A molded product was obtained in the same manner except that a particle size of 5 m, n 25 : 1. 490) was used.
- Example 9 a molded product was obtained in the same manner except that the polymer particles (C) were not used.
- Example 12 instead of the polymer particles (C) obtained in Example 1, Example 4 A molded product was obtained in the same manner except that the obtained polymer fine particles (c) were used.
- Example 12 instead of 2 parts by weight of the polymer particles (C) O. obtained in Example 1, 0.1 parts by weight of the polymer fine particles (C) obtained in Example 5 were used. A molded product was obtained in the same manner.
- Example 12 instead of using 2 parts by weight of the polymer particles (C) O. obtained in Example 1, 0.5 parts by weight of the polymer fine particles (C) obtained in Example 5 were used. A molded product was obtained in the same manner.
- Example 12 instead of the polymer particles (C) obtained in Example 1, a light diffusing agent manufactured by Sekisui Plastics Co., Ltd. (crosslinked polymethyl methacrylate resin, techpolymer MBX-5, average A molded product was obtained in the same manner except that a particle size of 5 m, n 25 : 1. 490) was used.
- a molded product was obtained in the same manner as in Example 12 except that the polymer particles (C) were not used.
- the sheet was formed into a sheet having a width of 45 mm and a thickness of 0.8 mm at ° C.
- Example 16 instead of the polymer particles (C) obtained in Example 1, Example 4 A molded product was obtained in the same manner except that the obtained polymer particles (C) were used.
- Example 16 in place of the polymer particles (C) obtained in Example 1, a wiping agent (BAZMMA core-shell structure particles, GBM-55, average particle diameter of 8 m) manufactured by Ganz Kasei Co., Ltd. was used. A molded product was obtained in the same manner except that.
- a wiping agent BAZMMA core-shell structure particles, GBM-55, average particle diameter of 8 m
- a molded product was obtained in the same manner as in Example 16 except that the polymer particles (C) were not used.
- a blend of 100 parts by weight of ABS oil (Kimyo Sangyo Co., Ltd., PA-747S) and 3 parts by weight of the polymer particles (C) obtained in Example 1 was used.
- extruder jSWTEX44SS-30W-3V: 44 mZm manufactured by Nippon Steel Co., Ltd.
- a flat plate sample having a thickness of 3 mm was obtained.
- a test piece for measuring Izod strength was obtained under the same pelletization and injection molding conditions.
- Example 18 a molded article was obtained in the same manner except that the polymer particle (C) obtained in Example 4 was used instead of the polymer particle (C) obtained in Example 1.
- Example 18 in place of the polymer particles (C) obtained in Example 1, Sekisui Plastics Co., Ltd. erasing agent (crosslinked polymethyl methacrylate resin, techpolymer MBX-5, average A molded product was obtained in the same manner except that the particle diameter was 5 ⁇ m).
- a molded article was obtained in the same manner as in Example 18 except that the polymer particles (C) were not used.
- Hard salt oil bulge (P 700, manufactured by Kanechi Co., Ltd., S100700 parts by weight, stabilizer (Ota Chil tin mercaptide, Arkema, T890S) 1.5 parts by weight, plasticizer (Cognis, Edenol D82) 1.5 parts by weight, lubricant (Clariant, Licowax E) 0.5 parts by weight
- the mixture obtained by mixing 3 parts by weight of the polymer particles (C) obtained in Example 1 was kneaded with a roll set at 180 ° C (manufactured by Collin, Walzwerk200) to prepare a sheet.
- a molded product was obtained in the same manner as in Example 20, except that the polymer fine particles (C) obtained in Example 4 were used instead of the polymer particles (C) obtained in Example 1.
- Example 20 in place of the polymer particles (C) obtained in Example 1, a wiping agent (BAZMMA core-shell structure particles, GBM-55, average particle diameter of 8 m) manufactured by Gantz Kasei Co., Ltd. was used. A molded product was obtained in the same manner except that.
- a wiping agent BAZMMA core-shell structure particles, GBM-55, average particle diameter of 8 m
- a molded product was obtained in the same manner as in Example 20, except that the polymer particles (C) were not used.
- a roll Cold, Walzwerk200
- a molded product was obtained in the same manner as in Example 22, except that the polymer particles (C) obtained in Example 4 were used instead of the polymer particles (C) obtained in Example 1.
- Example 22 in place of the polymer particles (C) 1 obtained in Example 1, a wiping agent (BAZMMA core-shell structure particles, GBM-55, average particle diameter of 8 m) manufactured by Ganz Kasei Co., Ltd. was used. A molded product was obtained in the same manner except that it was used. [0233] (Comparative Example 16)
- a molded product was obtained in the same manner as in Example 22 except that the polymer particles (C) were not used.
- Examples 6 to 15 using the polymer particles (C) of the present invention having a volume average particle diameter in the range of 100 to 6000 ⁇ m are light transmittance (total light transmittance), light Excellent diffusivity (haze), Izod strength, and powder handling.
- Comparative Examples 3, 5, and 7 using a light diffusing agent having an average particle diameter of 5 m are greatly inferior in terms of the handleability of the powder.
- Examples 16 to 23 using the polymer particles (C) of the present invention in which the volume average particle diameter is in the range of 100 to 6000 ⁇ m are matt (glossiness), Excellent strength and handling of powder.
- Comparative Examples 9, 11, 13, and 15 using an erasing agent having an average particle diameter of 8 m are greatly inferior in terms of the handleability of the powder.
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Abstract
Description
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US12/086,423 US20090109538A1 (en) | 2005-12-12 | 2006-12-05 | Polymer Particles, Process for Production Thereof, Resin Compositions Containing the Particles, and Moldings |
JP2007550136A JPWO2007069493A1 (ja) | 2005-12-12 | 2006-12-05 | 重合体粒子、及びその製造方法、並びに、その重合体粒子を含む樹脂組成物、及び成形体 |
EP06833978A EP1964856B1 (en) | 2005-12-12 | 2006-12-05 | Polymer particles, process for production thereof, resin compositions containing the particles, and moldings |
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JP2007161830A (ja) * | 2005-12-13 | 2007-06-28 | Sekisui Chem Co Ltd | エポキシ系樹脂組成物 |
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WO2018051870A1 (ja) * | 2016-09-16 | 2018-03-22 | 住友化学株式会社 | 熱可塑性樹脂組成物およびその成形体 |
JP2021088723A (ja) * | 2016-01-21 | 2021-06-10 | テクノUmg株式会社 | ゴム質重合体、グラフト共重合体および熱可塑性樹脂組成物 |
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- 2006-12-05 KR KR1020087016078A patent/KR20080080606A/ko not_active Application Discontinuation
- 2006-12-05 EP EP06833978A patent/EP1964856B1/en not_active Not-in-force
- 2006-12-05 US US12/086,423 patent/US20090109538A1/en not_active Abandoned
- 2006-12-05 JP JP2007550136A patent/JPWO2007069493A1/ja active Pending
- 2006-12-05 WO PCT/JP2006/324223 patent/WO2007069493A1/ja active Application Filing
- 2006-12-08 TW TW095145943A patent/TW200738757A/zh unknown
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007161830A (ja) * | 2005-12-13 | 2007-06-28 | Sekisui Chem Co Ltd | エポキシ系樹脂組成物 |
JPWO2015186615A1 (ja) * | 2014-06-02 | 2017-04-20 | 株式会社トクヤマ | 光拡散剤及びそれを用いた光拡散性組成物 |
JP2021088723A (ja) * | 2016-01-21 | 2021-06-10 | テクノUmg株式会社 | ゴム質重合体、グラフト共重合体および熱可塑性樹脂組成物 |
WO2018051870A1 (ja) * | 2016-09-16 | 2018-03-22 | 住友化学株式会社 | 熱可塑性樹脂組成物およびその成形体 |
CN109715726A (zh) * | 2016-09-16 | 2019-05-03 | 住友化学株式会社 | 热塑性树脂组合物及其成型体 |
JPWO2018051870A1 (ja) * | 2016-09-16 | 2019-06-27 | 住友化学株式会社 | 熱可塑性樹脂組成物およびその成形体 |
JP7103223B2 (ja) | 2016-09-16 | 2022-07-20 | 住友化学株式会社 | 熱可塑性樹脂組成物およびその成形体 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2007069493A1 (ja) | 2009-05-21 |
EP1964856A1 (en) | 2008-09-03 |
EP1964856A4 (en) | 2009-08-05 |
EP1964856B1 (en) | 2011-05-25 |
TW200738757A (en) | 2007-10-16 |
US20090109538A1 (en) | 2009-04-30 |
KR20080080606A (ko) | 2008-09-04 |
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