WO2006092897A1 - 凝固ラテックス粒子の製造方法 - Google Patents
凝固ラテックス粒子の製造方法 Download PDFInfo
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- WO2006092897A1 WO2006092897A1 PCT/JP2005/022818 JP2005022818W WO2006092897A1 WO 2006092897 A1 WO2006092897 A1 WO 2006092897A1 JP 2005022818 W JP2005022818 W JP 2005022818W WO 2006092897 A1 WO2006092897 A1 WO 2006092897A1
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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
- C08J3/16—Powdering or granulating by coagulating dispersions
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C1/00—Treatment of rubber latex
- C08C1/14—Coagulation
- C08C1/15—Coagulation characterised by the coagulants used
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/04—Oxidation
Definitions
- the present invention relates to a method for producing coagulated latex particles. More specifically, the present invention relates to a method for producing coagulated latex particles with a high yield from a high molecular latex.
- the reason for setting the coagulant charging temperature to a temperature sufficiently lower than the softening temperature of the polymer is to suppress secondary aggregation between the generated coagulated latex particles, which is usually higher than the softening temperature of the polymer.
- a coagulant is added at, coarse coagulated latex particles are frequently generated by secondary agglomeration, and in the worst case, the system may be agglomerated.
- a gas phase coagulation method for example, refer to Patent Document 1
- a slow coagulation method for example,
- a granulation method such as a spray dryer.
- the polymer softening temperature is used.
- a granulation operation on the low temperature side is desired.
- the granulation operation is carried out at a temperature near or below the polymer softening temperature.
- a polymer that is very likely to be secondary agglomerated and difficult to granulate is a method of granulating a rubbery polymer latex having a softening temperature of room temperature or less, and includes A method is known in which a high molecular weight polyanion having a hydroxyl group is added to a rubber latex, and the mixed latex is dropped into an aqueous solution containing at least one alkaline earth metal (see, for example, Patent Document 3). ).
- Patent Document 1 Japanese Patent Laid-Open No. 53-30647
- Patent Document 2 JP-A-60-217224
- Patent Document 3 JP-A 52-37987
- the present invention provides a solution to the above points, secondary aggregation can be suppressed under the widest possible temperature conditions without deteriorating the original quality of the polymer itself, and the desired yield can be improved. It is an object to propose a new granulation method that can collect coagulated latex particles.
- the present inventors have made extensive studies, and as a result, the polymer latex is sprayed or dropped into a gas phase containing an inorganic salt and / or an acid in the form of a smoke, By dropping or throwing high molecular latex droplets into an aqueous phase containing a dispersant, it does not degrade the original quality of the polymer itself, and it is agglomerated under a wide temperature range and temperature conditions.
- the inventors have found that the generation of fine powder can be suppressed and the desired coagulated latex particles can be recovered with good yield, and the present invention has been completed.
- the present invention sprays or drops a polymer latex into a gas phase containing an inorganic salt and / or an acid in the form of a smoke, and the polymer latex droplets are added to an aqueous phase containing a dispersant. It relates to a method for producing coagulated latex particles, characterized by being dropped or thrown into
- a preferred embodiment relates to the above-mentioned method for producing coagulated latex particles, wherein the polymer latex contains a water-soluble polymer compound having a property of forming a physical gel.
- a preferred embodiment relates to the method for producing coagulated latex particles according to any one of the above, wherein the soft temperature of the polymer in the polymer latex is 60 ° C or lower.
- polymer latex droplets are dropped or introduced into an aqueous phase containing a dispersant in the range of 0.001 to 10 parts by weight with respect to 100 parts by weight of polymer solids in the polymer latex.
- a preferred embodiment contains 0.01 to 3.0 parts by weight of a water-soluble polymer compound having a property of forming a physical gel with respect to 100 parts by weight of polymer solids in the polymer latex.
- a preferred embodiment contains 0.05 to 1.8 parts by weight of a water-soluble polymer compound having a property of forming a physical gel with respect to 100 parts by weight of the polymer solid content in the polymer latex.
- the present invention relates to a method for producing the coagulated latex particles.
- the coagulation latex status according to any one of the above, wherein the dispersant is a nonionic polymer surfactant and / or an anionic surfactant.
- the present invention relates to a method for producing particles.
- the nonionic polymer surfactant is a partially saponified polyvinyl alcohol, polyacrylic acid and a salt thereof, methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, polyalkylene oxide,
- the present invention relates to the above-mentioned method for producing coagulated latex particles, which is one or more selected from polybulurpyrrolidone, polyvinylimidazole, acrylamide, and sulfonated polystyrene.
- the embodiment is that the anionic surfactant is one or more selected from carboxylates, sulfonates, sulfates, and phosphates.
- the present invention relates to a method for producing the coagulated latex particles.
- the water-soluble polymer compound having the property of forming a physical gel is methylcellulose, a water-soluble alginic acid derivative, agar, gelatin, carrageenan, dalcomannan, pectin, curdlan, dillanglan gum, and polyacrylic.
- the coagulation latex according to any one of the above, which is one or more selected from acid derivatives The present invention relates to a method for producing a soot particle.
- a preferred embodiment is characterized in that 0.2 to 20 parts by weight of an inorganic salt and / or an acid is contained in the gas phase with respect to 100 parts by weight of the polymer solid content in the polymer latex.
- the present invention relates to a method for producing coagulated latex particles according to any one of the above.
- the inorganic salt is selected from a sodium salt, a potassium salt, a calcium salt, a magnesium salt, an aluminum salt, an iron salt, a sodium salt, a zinc salt, a copper salt, potassium miyoban, and iron miyoban.
- the acid is one or more inorganic acids selected from hydrochloric acid, sulfuric acid, nitric acid and phosphoric acid, and / or one or more organic acids selected from acetic acid and formic acid.
- a preferred embodiment relates to the above-mentioned method for producing coagulated latex particles, wherein the water-soluble polymer compound having a property of forming a physical gel is a water-soluble alginic acid derivative.
- a preferred embodiment relates to the above-described method for producing coagulated latex particles, wherein the inorganic salt is a calcium salt.
- the solidified latex particles according to any one of the above, wherein the polymer latex sprayed or dropped into the gas phase has a volume average droplet diameter of 50 ⁇ m to 5 mm. It relates to a manufacturing method.
- the polymer latex has a polymer solid concentration of 10 to 55 wt%.
- the polymer latex that can be used in the present invention is not particularly limited. For example, it is produced by a emulsion polymerization method, a suspension polymerization method, a microsuspension polymerization method, a miniemulsion polymerization method, an aqueous dispersion polymerization method, or the like.
- the polymer latex can be used. Among them, a polymer latex produced by an emulsion polymerization method can be suitably used from the viewpoint that the structure can be easily controlled and coagulated latex particles having good powder characteristics can be obtained.
- the polymer latex prepared by the above method, and the polymer particles contained therein for example, (1) acrylic acid esters 50 to 100 weight 0/0, methacrylic acid esters 0-60% by weight, aromatic Bulle monomer 0-40 weight 0/0, and an acrylic acid ester, Metatari Le esters, aromatic Bulle monomer copolymerizable with Bulle monomer 0-30 weight 0/0, and polyfunctional monomers 0-5 weight
- the particle structure of the polymer in these polymer latexes may be a single layer or a a
- the general method for producing the polymer latex described above is not limited to the forces described in detail in, for example, JP-A-2002-363372 and JP-A-2003-119396. .
- the polymer latex that can be used in the present invention is not limited to these, for example, a monomer composition mainly composed of one or more monomers selected from the following monomer group: Latex polymer particles composed of polymer particles obtained by copolymerizing or graft-polymerizing the product alone or in a mixture can be used. Examples of the monomer group include (1) methyl acrylate, ethyl acrylate, butyl ester.
- Alkyl acrylates having an alkyl group having 10 or less carbon atoms such as talylate, 2-ethylhexyl acrylate, (2) methyl methacrylate, ethyl methacrylate, butyl methacrylate, 2-ethyl hexyl methacrylate
- Burcians such as acrylonitrile and methatalonitrile
- Halogenated burs such as vinyl chloride, bromide, and black mouthplanes
- Bull acetate (8) Alkenes such as Tylene, Propylene, Butylene, Butadiene, Isobutylene,
- Allyl methacrylate, Diary Forces exemplified by polyfunctional monomers such as ruphthalate, trialinoreocyanurate, monoethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, dibutenebenzene, glycidyl methacrylate and the like are not limited thereto.
- the average particle size of the polymer particles is not particularly limited, but a polymer having a volume average particle size of 0.01 to 15 / m obtained by a usual emulsion polymerization method or suspension polymerization method or the like. Particles can be suitably used.
- the volume average particle diameter of the polymer particles can be measured by using, for example, MICRO TRAC UPA (manufactured by Nikkiso Co., Ltd.).
- the polymer solids concentration of the polymer latex in the present invention is not particularly limited as long as the object of the present invention is achieved, but usually 10 to 55% by weight is preferable, and 20 to 45% by weight is more preferable. Les.
- the polymer solids concentration of the polymer latex is lower than 10% by weight, the solids concentration is reduced to 10% by weight from the 30-40% polymer solids concentration at the end of normal emulsion polymerization or suspension polymerization. A large amount of water is required to adjust to a lower level, and the drainage load tends to increase.
- the polymer solid content concentration of the polymer latex is higher than 55% by weight, there is no particular influence on the granulation operation of the present invention, but control of the polymerization heat generation, frequent occurrence of scale in the polymerization tank, etc. The polymerization operation tends to be difficult.
- the polymer solids concentration of the polymer latex was measured by placing 0.5 g of latex in a hot air convection dryer at 120 ° C for 3 hours to evaporate the moisture, and determining the latex weight before drying and the polymer weight after drying. This can be done by calculating the polymer solids concentration of the latex.
- the polymer softening temperature of the polymer latex there is no particular limitation on the polymer softening temperature of the polymer latex.
- the polymer is preferably applied to a polymer latex having a softening temperature of 60 ° C. or lower.
- the polymer softening temperature means that the water content in the polymer aggregated particles when the water suspension of the polymer aggregated particles obtained by salting out is heated is 5% higher than the water content before heating. This means a temperature that decreases by more than% by weight.
- the polymer softening temperature can be measured by the following method. First, polymer latex is put into a dialysis tube, and both ends are joined. The polymer latex is immersed in a 3 wt% aqueous solution of calcium chloride at a temperature of 1 ° C for 8 hours to completely coagulate to obtain a tube-shaped coagulum.
- the tube coagulation obtained here is immersed in each warm water for 10 minutes in increments of 5 ° C from 5 ° C to 60 ° C, for example, and heat treatment is performed on the tube coagulation obtained at each temperature.
- Water is evaporated using a convection dryer.
- the moisture content is determined from the weight of the solidified tube before drying and the weight of the solidified tube after drying, and the temperature at which the moisture content decreases by 5% by weight or more from the moisture content before heating is defined as the polymer softening temperature.
- latex droplets sprayed or dropped into the gas phase are dropped or put into an aqueous phase containing a dispersant.
- the main purpose of using the dispersant in the present invention is to disperse and stabilize the coagulated latex particles that have entered the aqueous phase and to suppress secondary aggregation.
- the suppression of secondary agglomeration and fine powder generation is important for obtaining coagulated latex particles with the desired particle size in good yield, and therefore, the granulation temperature range where both effects are minimized ( Usually, operation from near the softening temperature of the polymer to about 10 ° C lower than that was indispensable.
- the restriction on the granulation temperature range on the high temperature side is greatly relaxed, which makes it difficult to granulate conventionally only by improving the operability and suppressing the generation of fine powder.
- Even for polymer latex with a polymer softening temperature of 0 ° C or less extremely high yields under mild temperature conditions This makes it possible to obtain the desired coagulated latex particles.
- the dispersant in the present invention is not particularly limited as long as it has an effect of stabilizing the coagulated latex particles that have entered the aqueous phase.
- an anionic surfactant a nonionic surfactant
- examples thereof include polymeric surfactants, nonionic surfactants, amphoteric surfactants, cationic surfactants, and inorganic dispersants such as tricalcium phosphate and magnesium hydroxide.
- nonionic polymer surfactants and anionic surfactants which are preferred to Z or anionic surfactants, are most preferably used because of good dispersion stability of the coagulated latex particles. Can be done. These are one kind or
- Two or more types can be used in combination.
- an anionic surfactant can be most suitably used is that other dispersing agents are used when the aqueous suspension of coagulated latex particles after coagulation is dehydrated by filtration. This is because the filterability tends to be better than that in the case of the case.
- the anionic surfactant is not limited to this, which is not much different from the case where a nonionic polymer surfactant or other dispersant is used.
- nonionic polymer surfactant for example, a nonionic polymer surfactant comprising one or a mixture of two or more selected from the following group forces is used.
- a nonionic polymer surfactant comprising one or a mixture of two or more selected from the following group forces.
- Can do for example, partially saponified polyvinyl alcohol, polyacrylic acid and its salts, methinoresenololose, hydroxymethinoresenorelose, hydroxyethinoresenololose, polyalkyleneoxide, polyvinylpyrrolidone, polyvinylimidazole, acrylamide, sulfone Polystyrene and the like can be exemplified.
- partially saponified polyvinyl alcohol in which partially saponified polyvinyl alcohol, methyl cellulose, hydroxymethyl cellulose, and polyalkylene oxide are preferred, can be more preferably used from the viewpoint of a high effect of suppressing secondary aggregation between coagulated latex particles.
- an anionic surfactant comprising one or a mixture of two or more selected from the following group may be used. It can. Specific examples include aliphatic monocarboxylates, polyoxyethylene alkyl ether carboxylates, N-alkyl sarcosinates, N-acyl glutamates, rubonic acid salts, dialkyl sulfosuccinates, alkane sulfonates.
- Alpha ref Sulfonates such as insulfonate, linear alkylbenzenesulfonate, alkyl (branched) benzenesulfonate, naphthalenesulfonate-formaldehyde condensate, alkylnaphthalenesulfonate, N-methyl-N-acyl taurate , Alkyl sulfates, alcohol ethoxy sulfates, sulfate esters such as oil sulfates, phosphates such as alkyl phosphates, polyoxyethylene alkyl ether phosphates, polyoxyethylene alkyl phenyl ether phosphates Anionic surfactants such as ester salts can be exemplified.
- sulfonates, sulfate esters, and phosphate esters can be preferably used, and sulfonates and sulfate esters are more preferably used because of its high effect of suppressing secondary aggregation between coagulated latex particles. It can be done. More specifically, examples of sulfonates and sulfate esters that can be used in the present invention include sodium lauryl sulfate, ammonium lauryl sulfate, sodium dodecinolevene sulfonate, sodium dioctylsulfosuccinate and the like. It is not limited to these.
- anionic surfactants When these anionic surfactants are added to a water phase containing a divalent or higher inorganic salt as a coagulant, they may react with them to form a slightly water-soluble salt. is there. However, even in that case, the effect of suppressing secondary aggregation between the coagulated latex particles is sufficient and can be used in accordance with the object of the present invention.
- the content of the dispersant in the aqueous phase in the present invention is preferably in the range of 0.001 to 10 parts by weight with respect to 100 parts by weight of the polymer solid content in the polymer latex. More preferred to be in the range of ⁇ 5 parts by weight, most preferred to be in the range of 0.01 to 3 parts by weight.
- the content of the dispersant in the aqueous phase is less than 0.001 part by weight relative to 100 parts by weight of the polymer solid content, the effect of stabilizing the dispersion on the coagulated latex particles is reduced, and the effect of suppressing secondary aggregation. Tends to be difficult to obtain.
- the content of the dispersant in the aqueous phase is more than 10 parts by weight based on 100 parts by weight of the polymer solid content, secondary aggregation between the coagulated latex particles can be suppressed, but in the coagulated latex after recovery. Large amounts of dispersant may remain and adversely affect quality such as thermal stability.
- the method for adding the dispersant is not particularly limited, and a predetermined amount of the dispersant is previously added to the aqueous phase, or the amount of spray or dripping of the polymer latex is adjusted.
- a predetermined amount of the dispersant is previously added to the aqueous phase, or the amount of spray or dripping of the polymer latex is adjusted.
- it is limited to these methods because the coagulated latex particles need only be in a state where they can come into contact with the dispersant when dropped or added to the aqueous phase. It is not something.
- it is preferable and convenient to use a dispersing agent adjusted to a predetermined concentration as an aqueous solution but it is not limited thereto. Examples of the concentration of the aqueous dispersant solution include 0.01 to 10% by weight.
- the “physical gel” means a gel formed by a physical bridge formed by hydrogen bonds, ionic bonds or chelate formation between polymers.
- ⁇ water-soluble polymer compound having the property of forming a physical gel '' means a water-soluble polymer compound having the above properties. It is defined as
- the water-soluble polymer compound having the property of forming a physical gel that can be used in the present invention is not particularly limited as long as it can express the above properties.
- a water-soluble polymer compound composed of one or a mixture of two or more selected can be used.
- water-soluble alginic acid derivatives such as alginic acid, sodium alginate, potassium alginate, ammonium alginate, hydroxyethylmethylcellulose, hydroxypropylmethylcellulose, carboxymethylcellulose, agar, gelatin, strength laginan, dalcomannan, pectin, curdlan
- Examples include dielan gum and polyacrylic acid derivatives.
- a water-soluble alginic acid derivative can be most preferably used among these, among which carboxymethylcellulose, a water-soluble alginic acid derivative, or a polyatallylic acid derivative is more preferable in terms of achieving the object.
- the water-soluble alginic acid derivative reacts with a polyvalent metal salt or acid such as alginic acid, sodium alginate, potassium alginate, ammonium alginate, etc. However, it is not limited to these as long as it has the property of forming a rutile.
- the ratio of mannuronic acid and guluronic acid in the water-soluble alginic acid derivative is not particularly limited. However, the higher the ratio of gnoleronic acid, the higher the ability to form a physical gel.
- the acid ratio is 5% by weight or more, more preferably 30% by weight or more.
- the molecular weight of the water-soluble polymer compound typified by the water-soluble alginic acid derivative is not particularly limited, but was measured by a B-type viscometer from the viewpoint of liquid transfer during production. It is preferred that the viscosity of the aqueous solution at 2% concentration is 2 to 22000 mPa's, more preferably 2 to 1 OOOmPa ⁇ s.
- One purpose of adding a water-soluble polymer compound having a property of forming a physical gel to the polymer latex is to improve the shape retention of the coagulated latex particles during granulation.
- the gelation of the water-soluble polymer compound proceeds at the same time.
- the mechanical strength of the latex droplet surface is improved, and it is suppressed that the solidified latex particles become amorphous due to the impact when entering the liquid phase from the gas phase. It is thought that the generation of fine powder due to particle destruction can be suppressed.
- the obtained solidified particles have a spherical shape, and the generation of fine powder is further suppressed, whereby powder characteristics such as blocking resistance and powder flow properties can be further improved.
- the content of the water-soluble polymer compound having the property of forming a physical gel in the present invention is not particularly limited as long as the object of the present invention can be achieved.
- the polymer in the polymer latex It is preferably 0.01 to 3.0 parts by weight with respect to 100 parts by weight of the solid content. 0.01 to 1: 1. More preferably, it is 8 parts by weight. Particularly preferred is 8 parts by weight 0.1 to: 1.5 Most preferred is 5 parts by weight. If the amount of the water-soluble polymer compound having the property of forming a physical gel of the present invention is less than 0.01 parts by weight based on 100 parts by weight of the polymer solid content of the polymer latex, it is sprayed into the gas phase.
- the gelled film formation by the water-soluble polymer compound is insufficient on the surface of the dropped latex droplets, so the coagulated latex particles become amorphous due to the impact when entering the liquid phase. Or generation of fine powder may occur and it may be difficult to obtain a powder having good powder characteristics.
- the amount of the water-soluble polymer compound having the property of forming a physical gel is more than 3.0 parts by weight, a large amount of the water-soluble polymer compound-derived substance remains in the recovered coagulated latex particles, and the heat There is a tendency to deteriorate the quality such as stability, and the viscosity of the mixed latex becomes higher and handling such as transferability may be difficult.
- JP-A-52-37987 a high molecular weight polyanion having a carboxyl group and Z or a hydroxyl group in the molecule is added to a rubber latex, and the mixed latex is made of an alkaline earth metal.
- a method of dropping in an aqueous solution containing at least one kind is disclosed as a method of granulating a rubbery polymer latex that is extremely difficult to recover in a granular form.
- At least 2.0 parts by weight, preferably 4.0 parts by weight or more of high molecular weight polyanion is not added to 100 parts by weight of polymer solids in the rubber latex. It is stated that it must be.
- the reason for this is that (ii) when the amount of high molecular weight polyanion is less than 2 parts by weight, the containment effect of rubber by the alkaline earth metal salt film (gel) of high molecular weight polyanion is not sufficient.
- the latex viscosity is the most preferred, lower than the range of 1000-3000 mPa's, and the rubber shape becomes indefinite due to the impact of the mixed latex droplets entering the liquid phase as well as the gas phase force. It is described as the main reason.
- the amount of the water-soluble polymer compound having a property of forming a physical gel is, for example, from 0.01 to 1.1 with respect to 100 parts by weight of the polymer solid content in the polymer latex.
- Coagulated latex particles having good powder characteristics can be obtained even when the amount is 8 parts by weight, which is very small compared to the above invention. This is due to the progress of coagulation of the polymer latex and the formation of a gel film in the gas phase, resulting in the generation of amorphous powders of latex droplets (coagulated latex particles) due to impact when entering the liquid phase from the gas phase. Therefore, the above characteristics can be realized.
- the viscosity of the polymer latex containing the water-soluble polymer compound having the property of forming a physical gel in the present invention is not particularly limited, but it can be applied without any problem even if it is usually less than 200 mPa's.
- the present invention is essentially different from the above-described prior art in which the mixed latex is made highly viscous to maintain the spherical shape of the particles against collision at the liquid level.
- the method of incorporating the water-soluble polymer compound having the property of forming a physical gel into the polymer latex for example, a water-soluble polymer compound aqueous solution is separately added.
- a specified amount of the polymer latex to the polymer latex after the polymerization is simple in terms of operation. However, it is not limited to this, for example, within a range that does not adversely affect the polymerization process, such as gelling, before or during polymerization, a prescribed amount of water-soluble polymer compound is added to the polymer latex. They can be added all at once or in the form of an aqueous solution or powder.
- the concentration of the aqueous water-soluble polymer compound aqueous solution when the water-soluble polymer compound is contained in the polymer latex as an aqueous solution is preferably, for example, 0.01 to 10% by weight.
- concentration of the water-soluble polymer compound aqueous solution is lower than 0.01% by weight, a large amount of the aqueous solution is added to the polymer latex to add a predetermined amount of the water-soluble polymer compound. Tend to increase.
- the concentration of the water-soluble polymer compound aqueous solution is higher than 10% by weight, the viscosity of the water-soluble polymer compound aqueous solution may increase and the operability may deteriorate.
- the mixing operation of the polymer latex and the water-soluble polymer compound is easily accomplished by stirring or mixing the entire polymer latex for several minutes after the water-soluble polymer compound aqueous solution is placed in the polymer latex.
- a polymer latex containing a water-soluble polymer compound having a property of forming a physical gel (hereinafter, also referred to as a mixed latex) is sprayed or dropped into the gas phase, and the droplets used here Solidification can proceed in the gas phase while maintaining the shape.
- the droplet size when spraying or dripping the mixed latex is a force that can be arbitrarily adjusted according to the supply form of the powder after drying, which is the product.
- the volume average droplet size is 50 ⁇ to 5 ⁇ Within the range, preferably 75! Within the range of ⁇ 3mm.
- the droplet diameter when spraying or dripping the mixed latex is obtained indirectly by measuring the volume average particle diameter of the resulting coagulated latex particles with MIC ROTRAC FRA-SVRSC (Nikkiso Co., Ltd.). That power S.
- the mixed latex sprayed or dripped in the gas phase is brought into contact with a coagulant capable of coagulating the latex, and after coagulation is advanced, the mixed latex is dropped into an aqueous phase containing a dispersant. Or let me throw it in.
- the coagulant that can be used in the present invention is a polymer latex.
- any substance that has the properties of coagulating water and gelling water-soluble polymer compounds may be used.
- the aqueous solution may be used alone or in a mixture of two or more to form an aerosol.
- a solid physical gel is obtained from the point that a strong physical gel is obtained.
- the agent calcium chloride, ferrous sulfate, ferrous chloride, ferric chloride, ferric sulfate, aluminum sulfate and the like are preferably used, and among them, calcium chloride can be more preferably used.
- the amount of the above-mentioned coagulant (gelling agent), that is, the inorganic salt and / or acid is not necessarily limited, but is preferably used with respect to 100 parts by weight of the polymer solid content in the polymer latex. More preferably, it is 0.2 to 20 parts by weight, and more preferably 0.5 to 15 parts by weight. If the amount of coagulant (gelling agent) used is less than 0.2 parts by weight with respect to 100 parts by weight of the polymer solids of the polymer latex, the latex may not be sufficiently coagulated. When the amount of the agent (gelling agent) is more than 20 parts by weight, the coagulation characteristics are not affected, but the amount of coagulant (gelling agent) in the wastewater increases and the load of wastewater treatment tends to increase.
- the contact method of the mixed latex and the coagulant (gelator) in the present invention is, for example, a coagulable gas phase in which a predetermined amount of an aqueous solution of a coagulant (gelator) is continuously sprayed in the form of a fumes.
- a coagulable gas phase in which a predetermined amount of an aqueous solution of a coagulant (gelator) is continuously sprayed in the form of a fumes.
- the water suspension of coagulated latex particles obtained after granulation is heated as necessary, and the heat treatment promotes fusion between the polymer particles in the coagulator latex particles.
- the upper limit of the heat treatment temperature is not particularly limited, but it is usually preferable that the heat treatment temperature is 120 ° C. or lower because it is easy to operate. This further increases the mechanical strength of the coagulated latex particles and decreases the water content. This operation may not be performed when granulation is performed at a temperature higher than the polymer softening temperature because the same effect as the heat treatment operation is obtained in the granulation process. Further, when performing the heat treatment, an anti-fusing treatment may be performed to suppress interparticle aggregation during heating and drying (or after drying).
- the coagulated latex particles according to the present invention can be recovered as a powder by performing dehydration and drying operations according to a conventional method.
- additives such as an antioxidant, a heat stabilizer, an ultraviolet absorber, a pigment, an antistatic agent, and a lubricant are added as necessary, for example, A polymer latex or an aqueous suspension of coagulated latex particles after completion of the coagulation operation can be appropriately added in any step in the production method of the present invention.
- the coagulated latex particles produced according to the present invention include, for example, vinyl chloride resin, (meth) acrylic resin, styrene resin, carbonate resin, amide resin, ester resin, and the like. Used as an impact modifier for thermosetting resins such as thermoplastic resins such as fats and olefin resins, or phenolic resins, epoxy resins, unsaturated ester resins, urea resins, and melamine resins If it is, an excellent effect can be exhibited.
- thermosetting resins such as thermoplastic resins such as fats and olefin resins, or phenolic resins, epoxy resins, unsaturated ester resins, urea resins, and melamine resins If it is, an excellent effect can be exhibited.
- the tube solidified body obtained at each temperature was put into a 100 ° C hot air convection dryer for 12 hours to evaporate the water, the tube solidified body weight before drying was Wa, and the tube solidified body weight after drying was Wb.
- the water content was calculated from the following formula 1, and the temperature at which the water content decreased by 5% by weight or more from the water content before heating was defined as the polymer softening temperature.
- the water content in the tube coagulation body decreased significantly while coagulating with a calcium chloride aqueous solution at a liquid temperature of 1 ° C, and even when immersed in warm water at 5 ° C or higher for 10 minutes, the water content was 5% by weight or higher.
- the polymer softening temperature is set to 0 ° C or lower.
- the particle size distribution of the coagulated latex particle suspensions obtained in Examples and Comparative Examples was measured with MIC ROTRAC FRA-SVRSC (Nikkiso Co., Ltd.), and the fine powder amount ( % By weight).
- the recovery rate (%) of the coagulated latex particles was determined from the following (formula 3) from the dry particle weight (coarse particle weight%) remaining on the 16 mesh sieve after classification with a mesh sieve.
- ⁇ when the collapse rate is 90% or more, ⁇ when it is 80% or more and less than 90%, ⁇ when it is 60% or more and less than 80%, and X when it is lower than 60%.
- Carr's powder tester PT-R type manufactured by Hosokawa Micron Co., Ltd.
- dry particles of coagulated latex particles obtained in Examples and Comparative Examples drying conditions: 50 ° CX 12 hours, sieve: 16 mesh pass
- flow characteristics evaluation method CHEMICAL ENGINEERING, 1 965, vol. 18, pl63_168
- angle of repose collapse angle
- spatula angle loose bulk density
- compacted bulk density cohesion
- dispersity differential angle
- compressibility And make uniformity measurements and get The degree of liquidity was determined from the liquidity index.
- a fluidity index of 80 or higher was rated as ⁇ , 70 or higher and lower than 80, ⁇ , 60 or higher and lower than 70, ⁇ , and lower than 60.
- a glass reactor equipped with a thermometer, stirrer, reflux condenser, nitrogen inlet, and monomer and emulsifier addition device was charged with 130 parts by weight of deionized water and 0.043 part by weight of sodium lauryl sulfate in a nitrogen stream. The temperature was raised to 50 ° C. with stirring.
- BA butyl acrylate
- cumene hydride peroxide 0.02 part by weight of cumene hydride peroxide
- 0.01 part by weight of sodium ethylenediamine tetraacetate and sulfuric acid A mixed solution prepared by dissolving 0.2 part by weight of ferrous heptahydrate in 5 parts by weight of distilled water and 0.2 part by weight of sodium formaldehyde sulfoxynolate were charged.
- MMA methyl methacrylate
- cumene hydride peroxide a mixture of 8.0 parts by weight of methyl methacrylate (hereinafter also referred to as MMA) and 0.01 parts by weight of cumene hydride peroxide was added to this acrylic crosslinked rubber polymer as a graft monomer component at 50 ° C. At 30 minutes continuously. After completion of addition, 0.1 part by weight of cumene hydride peroxide was added, and stirring was further continued for 1 hour to complete the polymerization, resulting in a volume average particle size of 0.175 zm, a polymer solid content concentration of 40% by weight, and a polymer softening temperature. Polymer latex A at 25 ° C was prepared.
- Has thermometer, stirrer, reflux condenser, nitrogen inlet, monomer and emulsifier addition device A glass reactor was charged with 130 parts by weight of deionized water and 0.043 parts by weight of sodium lauryl sulfate, and the temperature was raised to 50 ° C. while stirring in a nitrogen stream. Next, a mixture of 8.5 parts by weight of BA and 0.02 parts by weight of cumene hydroperoxide was charged, and 10 minutes later, 0.01 parts by weight of sodium ethylenediamine tetraacetate and 0.2 parts by weight of ferrous sulfate and heptahydrate A mixed solution in which 5 parts by weight of distilled water was dissolved, and 0.2 part by weight of sodium formaldehydesulfoxylate were charged.
- Polymer latex A (polymer solid content: 100 parts by weight) is a swirl type conical nozzle that is a type of pressurized nozzle with a nozzle diameter of 0.6 mm, spraying pressure is 3.7 kg / cm 2 and the bottom of the tower It sprayed so that it might become a night drop whose volume average droplet diameter is 200 micrometers in the cylindrical apparatus of 5m in height and 60cm in diameter from the water phase liquid surface.
- Latex droplets (coagulated latex particles) dropped in the tower were put into a receiving tank at the bottom of the tower together with flowing water to obtain an aqueous suspension of coagulated latex particles having a polymer solid content of about 10% by weight. At this time, the temperature of the suspension in the receiving tank was 40 ° C.
- a 5% strength by weight aqueous potassium remitate solution is added so that the solid content of potassium palmitate is 1.0 part by weight with respect to 100 parts by weight of polymer solids.
- the heat treatment was performed by heating to 70 ° C. with stirring. Thereafter, dehydration and drying (50 ° C. ⁇ 12 hours) were performed, and solidified latex particles were recovered.
- Example 2 It was carried out in the same manner as in Example 1 except that 20 ° C water was used as flowing water from the top of the tower along the inner wall of the tower.
- Polymer latex A (100 parts by weight of polymer solids) was added with an aqueous solution of sodium alginate (Amiregitex LL, manufactured by Kimiki Co., Ltd.) at a concentration of 1.5% by weight (the viscosity of the aqueous solution measured with a B-type viscometer was 120 mPa's ) was added so that the solid content of sodium alginate was 0.4 parts by weight with respect to 100 parts by weight of the polymer solid content, and the whole was stirred and mixed uniformly. The same procedure as in Example 1 was performed except that the composite latex was used for spraying.
- sodium lauryl sulfate (Kao Co., Ltd .: Emar 2F Needle) 3.0% by weight aqueous solution of sodium lauryl sulfate was added to 100 parts by weight of polymer solids. The same operation as in Example 3 was conducted, except that the amount was continuously supplied to 4 parts by weight.
- Example 5 The same procedure as in Example 5 was performed, except that sodium alginate was added so as to be 0.01 part by weight with respect to 100 parts by weight of the polymer solid content.
- Polymer latex B (100 parts by weight of polymer solids) is a swirl type conical nozzle that is a type of pressurized nozzle, with a nozzle diameter of 0.6 mm, and a spray pressure of 3.7 kg / cm 2 . Spraying was performed in a cylindrical apparatus having a height of 5 m and a diameter of 60 cm from the bottom aqueous phase liquid surface so as to form a midnight drop having a volume average droplet diameter of 200 ⁇ m.
- the 30% strength by weight salty calcium aqueous solution was air-purified with a two-fluid nozzle so that the salty calcium solid content was 5 to 15 parts by weight with respect to 100 parts by weight of polymer solids.
- the mixture was sprayed so that the droplet diameter was 0.1 to 10 ⁇ m.
- water at 30 ° C was continuously flowed down from the top of the tower along the inner wall of the tower so that the polymer solid content was about 750 parts by weight with respect to 100 parts by weight of the polymer solids, and sodium lauryl sulfate (Kao) as a dispersant in the flowing water. (Emal Co., Ltd .: Emar 2F Needle) 3.
- a 30% by weight aqueous solution was continuously supplied so that the solid content of sodium lauryl sulfate was 0.4 parts by weight with respect to 100 parts by weight of polymer solids.
- Latex droplets (coagulated latex particles) dropped in the tower were put into a receiving tank at the bottom of the tower together with flowing water to obtain an aqueous suspension of coagulated latex particles having a polymer solid content of about 10% by weight. . At this time, the temperature of the suspension in the receiving tank was 30 ° C.
- a 5 wt% potassium potassium remitate solution is added so that the solid content of potassium palmitate is 1.0 part by weight with respect to 100 parts by weight of polymer solids.
- the heat treatment was performed by heating to 70 ° C. with stirring. Thereafter, dehydration and drying (50 ° C. ⁇ 12 hours) were performed, and solidified latex particles were recovered.
- Polymer latex B (100 parts by weight of polymer solid content) was added to a 1.5 wt% sodium alginate solution (manufactured by Kimiki Co., Ltd .: Argitex LL) in aqueous solution (measured using a B-type viscometer with an aqueous solution viscosity of 120 mPa s) was added so that the solid content of sodium alginate was 0.4 parts by weight with respect to 100 parts by weight of the polymer solid content, and a mixed latex prepared by uniformly stirring and mixing the whole was used for spraying. The same operation as in Example 9 was performed.
- Example 10 It was carried out in the same manner as in Example 10 except that 40 ° C water was used as flowing water from the top of the tower along the inner wall of the tower.
- sodium dodecinorebenzenesulfonate (Kao strain) Made by a formula company: Neo-Belex G-15) 3. Except for continuously supplying a 30% by weight aqueous solution so that the solid content of sodium dodecylbenzenesulfonate is 0.4 parts by weight with respect to 100 parts by weight of polymer solids, The same operation as in Example 10 was performed.
- di O lipped Le sodium sulfosuccinate (Kao Stock Company Ltd.: PELEX ⁇ _T_P) 3.0 wt 0/0 solution of di-O Chi le sodium sulfosuccinate solid content within the polymer solids to 100 parts by weight
- the same procedure as in Example 10 was performed, except that the amount was continuously supplied so as to be 0.4 parts by weight.
- polymer latex C 100 parts by weight of polymer solid content
- a 1.5% by weight sodium alginate solution manufactured by Kimiki Co., Ltd .: Argitex LL
- aqueous solution viscosity measured with a B-type viscometer 120 mPa's was added so that the solid content of sodium alginate was 0.4 parts by weight with respect to 100 parts by weight of polymer solids, and the whole was stirred and mixed uniformly to prepare a mixed latex.
- the mixed latex is a swirl type conical nozzle that is a type of pressurized nozzle and has a nozzle diameter of 0.6 mm, and the spray pressure is 3.7 kg / cm 2 and the height from the water phase liquid level at the bottom of the tower is 5 m. It sprayed so that it might become a droplet with a volume average droplet diameter of 200 micrometers in a cylindrical apparatus with a diameter of 60 cm.
- an aqueous hydrochloric acid solution with a concentration of 10% by weight is mixed with air in a two-fluid nozzle so that the pure hydrochloric acid content is 0.5 to 2 parts by weight with respect to 100 parts by weight of the polymer solids. Diameter 0.1-: Sprayed to 10 zm.
- Latex droplets (coagulated latex particles) dropped in the tower were put into a receiving tank at the bottom of the tower together with flowing water to obtain an aqueous suspension of coagulated latex particles having a polymer solid content of about 10% by weight. .
- the temperature of the suspension in the receiving tank was 30 ° C and the pH was 2.0.
- Polymer latex B (100 parts by weight of polymer solid content) was added to a 1.5 wt% sodium alginate solution (manufactured by Kimiki Co., Ltd .: Argitex LL) in aqueous solution (measured using a B-type viscometer with an aqueous solution viscosity of 120 mPa s) was added so that the solid content of sodium alginate was 0.4 parts by weight with respect to 100 parts by weight of the polymer solid content, and the whole was stirred and mixed uniformly to prepare a mixed latex.
- a 1.5 wt% sodium alginate solution manufactured by Kimiki Co., Ltd .: Argitex LL
- aqueous solution measured using a B-type viscometer with an aqueous solution viscosity of 120 mPa s
- the mixed latex is a swirl type conical nozzle that is a type of pressurized nozzle and has a nozzle diameter of 0.6 mm, and the spray pressure is 3.7 kg / cm 2 and the height from the water phase liquid level at the bottom of the tower is 5 m. It sprayed so that it might become a droplet with a volume average droplet diameter of 200 micrometers in a cylindrical apparatus with a diameter of 60 cm.
- a 30% strength by weight salt-calcium aqueous solution is air-purified with a two-fluid nozzle so that the salt-calcium solid content is 5 to 15 parts by weight with respect to 100 parts by weight of polymer solids.
- the mixture was sprayed so that the droplet diameter was 0.1 to 10 ⁇ m.
- water at 30 ° C along the inner wall of the tower from the top of the tower should be about 750 parts by weight with respect to 100 parts by weight of polymer solids.
- Latex droplets (coagulated latex particles) dropped in the tower were put into a receiving tank at the bottom of the tower together with flowing water to obtain an aqueous suspension of coagulated latex particles having a polymer solid content of about 10% by weight.
- the temperature of the suspension in the receiving tank was 30 ° C.
- Example 2 The same procedure as in Example 2 was performed, except that partially saponified polybulal alcohol was not used.
- Example 2 The same procedure as in Example 2 was performed, except that partially saponified polybulal alcohol was not used and the temperature of the falling water was set to 5 ° C.
- Example 2 The same procedure as in Example 2 was performed, except that partially saponified polybulal alcohol was not used and the temperature of the falling water was 30 ° C.
- Example 9 The same operation as in Example 9 was carried out except that sodium lauryl sulfate was not used.
- Example 9 The same procedure as in Example 9 was carried out except that sodium lauryl sulfate was not used and the temperature of the flowing water was 1 ° C.
- Table 1 shows the granulation conditions of the coagulated latex particles in Examples and Comparative Examples (latex seed, polymer softening temperature, dispersant seed and addition amount, and water-soluble polymer compound having a property of forming a physical gel) (Physical gel) seeds and their addition amount, and granulation temperature).
- Table 2 shows the evaluation results of the fine powder amount, coarse particle amount, recovery rate, blocking resistance, powder flowability, and filtration rate of the coagulated latex particles in Examples and Comparative Examples.
- Latec polymer Dispersant addition amount Physical gel addition Granulation temperature Dispersant type Physical gel type
- Example 1 A 25 ° C Polyvinyl alcohol 0.4 None-40
- Example 2 A 25. C ⁇ 0. 4 None-20
- Example 3 A 25 ° C ⁇ 0. 4 Alginate Na 0. 4 40
- Example 4 A 25 ° C Lauryl sulfate Na 0. 4 None One 40
- Example 6 A 25 ° C ⁇ 0.005 Nag alginic acid 0.44
- Example 7 A 25 ° C ⁇ 0. 4 Cellulose 0.4.40
- Example 8 A 25 ° C ⁇ 0.4 Alginic acid Na 0. 01 40
- Example 9 B 0 e C or less ⁇ 0. 4 None-30
- Example 1 0 B 0 ° C or less ⁇ 0. 4 Alginic acid Na 0. 4 30
- Example 1 B 0 ° C or less 0.4 Alginic acid Na 0.4 4 30
- Example 1 B 0 ° C or less 0.4 Alginic acid Na 0.4 4 30
- Example 1 4 C 0 ° C or less Polyvinyl alcohol 0.4 Alginic acid Na 0.44 30
- the coagulated latex particles with a very high yield and a small amount of fine powder or coarse particles can be recovered under high temperature conditions.
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
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- Processes Of Treating Macromolecular Substances (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Description
Claims
Priority Applications (4)
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US11/885,224 US20080167402A1 (en) | 2005-02-28 | 2005-12-13 | Process for Producing Aggregated Latex Particle |
JP2007505809A JPWO2006092897A1 (ja) | 2005-02-28 | 2005-12-13 | 凝固ラテックス粒子の製造方法 |
EP05816771A EP1857490A1 (en) | 2005-02-28 | 2005-12-13 | Process for producing aggregated latex particle |
CA002599318A CA2599318A1 (en) | 2005-02-28 | 2005-12-13 | Process for producing aggregated latex particle |
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JP2005052783 | 2005-02-28 | ||
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US (1) | US20080167402A1 (ja) |
EP (1) | EP1857490A1 (ja) |
JP (1) | JPWO2006092897A1 (ja) |
KR (1) | KR20070115980A (ja) |
CN (1) | CN101128518A (ja) |
CA (1) | CA2599318A1 (ja) |
RU (1) | RU2007135954A (ja) |
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WO (1) | WO2006092897A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007013305A1 (ja) * | 2005-07-28 | 2007-02-01 | Kaneka Corporation | 凝固ラテックス粒子の製造方法 |
WO2008041697A1 (fr) * | 2006-10-03 | 2008-04-10 | Kaneka Corporation | Particules agrégées contenant de la résine de chlorure de vinyle et procédé de production desdites particules agrégées |
WO2009060819A1 (ja) * | 2007-11-09 | 2009-05-14 | Kaneka Corporation | 凝固ラテックス粒子、及びその製造方法 |
JP5010465B2 (ja) * | 2005-02-28 | 2012-08-29 | 株式会社カネカ | 凝固ラテックス粒子の製造方法 |
JP5185534B2 (ja) * | 2004-12-27 | 2013-04-17 | 株式会社カネカ | 凝固ラテックス粒子の製造方法 |
Families Citing this family (5)
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RU2010135773A (ru) * | 2008-01-29 | 2012-03-10 | ЛЕНКСЕСС Дойчланд ГмбХ (DE) | При необходимости гидрированные нитрильные каучуки, содержащие при необходимости концевые алкилтиогруппы |
JP6555595B2 (ja) * | 2014-03-05 | 2019-08-07 | 株式会社カネカ | 臨界ミセル濃度の低減方法 |
US10392477B2 (en) * | 2014-03-26 | 2019-08-27 | Kaneka Corporation | Method for manufacturing coagulated particles from latex prepared by emulsion polymerization, aggregates from latex prepared by emulsion polymerization, and coagulated particles from latex prepared by emulsion polymerization |
JP7147780B2 (ja) * | 2017-11-10 | 2022-10-05 | 日本ゼオン株式会社 | 水素化ニトリルゴムの製造方法 |
WO2019188930A1 (ja) * | 2018-03-26 | 2019-10-03 | 三菱ケミカル株式会社 | アクリル樹脂粉体、樹脂組成物、アクリル樹脂粉体を含むホットメルト接着剤組成物、及びその製造方法 |
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JPS5333244A (en) * | 1976-09-09 | 1978-03-29 | Kanegafuchi Chem Ind Co Ltd | Apparatuses for preparating coagulated latexes |
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US3915909A (en) * | 1973-06-23 | 1975-10-28 | Bayer Ag | Recovery of rubber as a powder from its aqueous dispersion |
JPS545825B2 (ja) * | 1974-09-25 | 1979-03-22 | ||
JPS523637A (en) * | 1975-06-02 | 1977-01-12 | Kanegafuchi Chem Ind Co Ltd | Process for preparing a coagulated latex |
JPS5330647A (en) * | 1976-09-03 | 1978-03-23 | Kanegafuchi Chem Ind Co Ltd | Preparation of coagulated latex |
JPS5373244A (en) * | 1976-12-13 | 1978-06-29 | Toyo Soda Mfg Co Ltd | Manufacture of powdered rubber |
JPS60217224A (ja) * | 1984-04-11 | 1985-10-30 | Kureha Chem Ind Co Ltd | ゴム含有グラフト共重合体の製造法 |
JPS627430A (ja) * | 1985-07-03 | 1987-01-14 | Kanegafuchi Chem Ind Co Ltd | コロイド粒子の凝集体を取得する方法 |
DE3689500T2 (de) * | 1985-07-03 | 1994-04-28 | Kanegafuchi Chemical Ind | Verfahren zur Herstellung von koagulierten kolloidalen Teilchen. |
JPS627429A (ja) * | 1985-07-03 | 1987-01-14 | Kanegafuchi Chem Ind Co Ltd | コロイド粒子凝集体を取得する方法 |
JPS62101601A (ja) * | 1985-10-29 | 1987-05-12 | Toyo Soda Mfg Co Ltd | 粉末ゴムの製造方法 |
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RU2007128817A (ru) * | 2004-12-27 | 2009-02-10 | Канека Корпорейшн (Jp) | Способ получения агрегированных латексных частиц |
KR20070115973A (ko) * | 2005-02-28 | 2007-12-06 | 카네카 코포레이션 | 응고 라텍스 입자의 제조 방법 |
-
2005
- 2005-12-13 KR KR1020077021438A patent/KR20070115980A/ko not_active Application Discontinuation
- 2005-12-13 EP EP05816771A patent/EP1857490A1/en active Pending
- 2005-12-13 WO PCT/JP2005/022818 patent/WO2006092897A1/ja active Application Filing
- 2005-12-13 RU RU2007135954/04A patent/RU2007135954A/ru not_active Application Discontinuation
- 2005-12-13 CN CNA2005800487539A patent/CN101128518A/zh active Pending
- 2005-12-13 JP JP2007505809A patent/JPWO2006092897A1/ja active Pending
- 2005-12-13 US US11/885,224 patent/US20080167402A1/en not_active Abandoned
- 2005-12-13 TW TW094144048A patent/TW200631971A/zh unknown
- 2005-12-13 CA CA002599318A patent/CA2599318A1/en not_active Abandoned
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JPS5333244A (en) * | 1976-09-09 | 1978-03-29 | Kanegafuchi Chem Ind Co Ltd | Apparatuses for preparating coagulated latexes |
JPS5887102A (ja) * | 1981-11-19 | 1983-05-24 | Kanegafuchi Chem Ind Co Ltd | 凝固ラテツクスの製造方法および装置 |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5185534B2 (ja) * | 2004-12-27 | 2013-04-17 | 株式会社カネカ | 凝固ラテックス粒子の製造方法 |
JP5010465B2 (ja) * | 2005-02-28 | 2012-08-29 | 株式会社カネカ | 凝固ラテックス粒子の製造方法 |
WO2007013305A1 (ja) * | 2005-07-28 | 2007-02-01 | Kaneka Corporation | 凝固ラテックス粒子の製造方法 |
US7728055B2 (en) | 2005-07-28 | 2010-06-01 | Kaneka Corporation | Process for producing coagulated latex particles |
JP5064221B2 (ja) * | 2005-07-28 | 2012-10-31 | 株式会社カネカ | 凝固ラテックス粒子の製造方法 |
WO2008041697A1 (fr) * | 2006-10-03 | 2008-04-10 | Kaneka Corporation | Particules agrégées contenant de la résine de chlorure de vinyle et procédé de production desdites particules agrégées |
WO2009060819A1 (ja) * | 2007-11-09 | 2009-05-14 | Kaneka Corporation | 凝固ラテックス粒子、及びその製造方法 |
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TW200631971A (en) | 2006-09-16 |
US20080167402A1 (en) | 2008-07-10 |
RU2007135954A (ru) | 2009-04-10 |
EP1857490A1 (en) | 2007-11-21 |
JPWO2006092897A1 (ja) | 2008-08-07 |
CN101128518A (zh) | 2008-02-20 |
CA2599318A1 (en) | 2006-09-08 |
KR20070115980A (ko) | 2007-12-06 |
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