WO2006049214A1 - ビニルピロリドン系重合体粉体およびその製造方法 - Google Patents
ビニルピロリドン系重合体粉体およびその製造方法 Download PDFInfo
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- WO2006049214A1 WO2006049214A1 PCT/JP2005/020220 JP2005020220W WO2006049214A1 WO 2006049214 A1 WO2006049214 A1 WO 2006049214A1 JP 2005020220 W JP2005020220 W JP 2005020220W WO 2006049214 A1 WO2006049214 A1 WO 2006049214A1
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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
- C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
- C08F226/10—N-Vinyl-pyrrolidone
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D139/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Coating compositions based on derivatives of such polymers
- C09D139/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C09D139/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J139/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Adhesives based on derivatives of such polymers
- C09J139/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
- C09J139/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
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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
- C08J2339/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers
Definitions
- the present invention relates to a powder of a bull pyrrolidone polymer having a low K value by the Fikencher method, which is used as a solution by dissolving in a solvent, and a method for producing the same. It is.
- burpyrrolidone-based polymers such as polypyrrole pyrrolidone and bullypyrrolidone copolymer have advantages and advantages such as biocompatibility, safety, and hydrophilicity. It is widely used in various applications such as agents, paints, dispersants, inks, and electronic parts.
- the molecular weight of the vinylpyrrolidone-based polymer to be used has an optimum range depending on the application. For example, adhesive materials for stick pastes, cosmetic raw materials such as humectants and hair styling agents, tablet needles, etc.
- a polymer having a low molecular weight in other words, a low K value (hereinafter sometimes simply referred to as “ ⁇ value”) according to the Fenchen method is suitable.
- a solution containing a vinylpyrrolidone-based polymer (usually a polymer solution obtained by polymerization when synthesizing a vinylpyrrolidone-based polymer) is dried into a powder by a spray dryer such as a spray dryer.
- a solution containing a bull pyrrolidone polymer (usually a polymer solution obtained by polymerization when synthesizing a bull pyrrolidone polymer) is heated on a heating surface of a disk rotary dryer, drum rotary dryer, belt dryer or the like.
- a method of pulverizing after drying with a contact-type dryer to form a sheet-like or thin chip-like dried product In general, the choice of i) or ii) has been determined by the K value of the bullpyrrolidone polymer.
- the viscosity of the solution used for drying is low, so the heating surface contact type drying such as disk rotary dryer, drum rotary dryer, belt dryer, etc.
- a vinylpyrrolidone polymer having a high K value in other words, a high molecular weight, it is difficult to apply it to a dry product in a sheet or thin chip shape. This is because the viscosity becomes high, and spraying dryers such as spray dryers cannot be sprayed well, making application difficult.
- the powder obtained by the method of drying with the spray-type dryer of i) and pulverizing is inevitably most of the powder is a fine particle having a small particle size.
- the powder is dried by the spray-type dryer of i) and powdered.
- the powder obtained by this method is very poor in solubility, and when used in a desired solvent, a very complicated operation or a long-time dissolution operation is required. There was a problem.
- the powder of bulurpyrrolidone polymer having a low K value has been obtained by drying with the spray-type dryer as described in i) above, and the pyrrolidone polymer weight having a low K value has been obtained.
- the powder of bulurpyrrolidone polymer having a low K value has been obtained by drying with the spray-type dryer as described in i) above, and the pyrrolidone polymer weight having a low K value has been obtained.
- the problem to be solved by the present invention is a bullet with a low K value by the Fikencher method.
- a vinylpyrrolidone polymer powder that is a pyrrolidone polymer, has excellent solubility, and that can be made into a solution with good handling property that dust does not fly, and a method for producing the same. It is in.
- the vinylpyrrolidone-based polymer solution is removed using a heated surface contact-type dryer. It was important to apply a method of grinding after drying, and in order to make this possible, it was found that the concentration of the solution used for drying should be adjusted to a specific range. This invention has been completed based on these findings.
- the vinylpyrrolidone polymer powder useful in the present invention is a powder of a bullpyrrolidone polymer having a K value of less than 50 according to the Fikencher method, and has a particle size of 106 ⁇ m or less.
- the content ratio of particles is 10 mass% or less, and the content ratio of particles exceeding 1000 ⁇ m is 5 mass% or less.
- a vinylpyrrolidone polymer K value according to Fikentscher method is less than 50 and a solution of concentration from 30 to 70 weight 0/0, the solution Is dried using a heated surface contact-type dryer and then pulverized so that the content of particles of 106 / zm or less is 10% by mass or less and the content of particles exceeding 1000 ⁇ m is 5% by mass or less. .
- the vinylpyrrolidone polymer powder of the present invention is a vinylpyrrolidone polymer powder having a K value of less than 50 according to the Fikencher method.
- the vinyl pyrrolidone polymer is a compound having a structural unit represented by the following general formula (1), and specifically means polyvinyl pyrrolidone and Z or bull pyrrolidone copolymer. To do.
- Polyvinyl pyrrolidone is obtained by polymerizing vinyl pyrrolidone by an arbitrary method as described later, and bull pyrrolidone copolymer is as described below for bull pyrrolidone and a monomer copolymerizable therewith. It can be obtained by polymerizing by any method.
- the bull pyrrolidone-based polymer may be one type or two or more types.
- the monomer copolymerizable with bull pyrrolidone is not particularly limited, specifically, for example,
- Buramides such as buluformamide, buluacetoamide, buroxazolidone
- Carboxyl group-containing unsaturated monomers such as (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid;
- Binole etheres such as methyl beryl ether, ethyl beryl ether, butyl beer ether;
- Olefins such as ethylene, propylene, otaten and butadiene
- the proportion of bull pyrrolidone in the total monomer component is not particularly limited, but is preferably 5 mol% or more with respect to the total monomer component 20mol% More preferred is 50 mol% or more. If the proportion of which accounts Bulle pyrrolidone total monomer component is less than 5 mole 0/0, a sufficiently exhibit the characteristics of species s derived from Bulle pyrrolidone Tokue, there is a possibility.
- the polymerization reaction for obtaining the bulurpyrrolidone-based polymer can be performed by a conventionally known polymerization method such as Balta polymerization, solution polymerization, emulsion polymerization, suspension polymerization, precipitation polymerization, or the like.
- the polymerization initiator that can be used in the polymerization reaction for obtaining a burpyrrolidone-based polymer, such as 2, 2'-azobisisobutyronitrile and 2, 2, azobis.
- Radical polymerization initiators such as (2-methylpropionamidine) dihydrochloride and other azo compounds, benzoylpa-peroxide, peracids such as hydrogen peroxide; hydrogen trifluoride
- Conventional polymerization initiators such as cationic polymerization initiators such as silicon or its complexes, salt iron (11), jetyl aluminum, jetyl zinc, heteropolyacid, activated clay, etc. may be mentioned.
- polymerization initiators may be used alone or in combination of two or more.
- the amount of the polymerization initiator used in the polymerization reaction is not particularly limited, but 0.001 to 10% by mass is preferable with respect to the monomer component, and 0.01 to 5% by mass is more preferable. 05-3 mass% is most preferable.
- any chain transfer agent, promoter, pH adjuster, buffering agent and the like can be used as necessary.
- Solvents that can be used in the polymerization reaction for obtaining the butylpyrrolidone polymer are not particularly limited, for example, water; alcohols such as methyl alcohol, ethyl alcohol, isopropyl alcohol, diethylene glycol; propylene glycol monomethyl acetate, Ethers (acetates) of alkylene glycols such as diethylene glycol monomethyl ether acetate; Amides such as dimethylformamide and N-methylpyrrolidone; Esters such as ethyl acetate, butyl acetate and y butyrolatathone; Aliphatic carbonization such as hexane and octane Hydrogen; Cyclohexane and other alicyclic saturated hydrocarbons; Cyclohexene and other alicyclic unsaturated hydrocarbons; benzene, toluene and xylene and other aromatic hydrocarbons; Acetone and methyl ethyl ketone Ketone etc.
- Halogenated hydrocarbons such as dichloroethane, chloroform, tetrasalt and carbon; ethers such as jetyl ether, dioxane and tetrahydrofuran; sulfonate esters such as dimethyl sulfoxide; dimethyl carbonate and jetyl carbonate And the like; and alicyclic carbonates such as ethylene carbonate and propylene carbonate; Of these, water and alcohols that are preferred to ethers (acetates) and amides are more preferred. These solvents may be used alone or in combination of two or more. The amount of solvent used in the polymerization reaction is not particularly limited and may be set as appropriate.
- the concentration of the vinylpyrrolidone polymer in the polymerization solution obtained by the polymerization reaction is that of the solution containing the vinylpyrrolidone polymer described later. Setting the concentration range is preferable from the viewpoint of production efficiency because the polymerization solution can be used as it is as a solution containing a bulupyrrolidone polymer.
- the bull pyrrolidone-based polymer in the present invention has a K value of less than 50 by the Fikencher method.
- the K value of the bull pyrrolidone polymer should be appropriately set according to the application within a range of less than 50, but the dissolution time when the vinyl pyrrolidone polymer powder of the present invention is used as a solution is not limited.
- the K value is preferably 45 or less.
- the K value is more preferably 40 or less.
- the K value means that the pyrrolidone-based polymer is dissolved in an arbitrary solvent in which the pyrrolidone-based polymer is dissolved at a concentration of 10% by mass or less, and the viscosity of the solution is 25 ° C. It is a value measured by a capillary viscometer and indicated by the Fikencher equation using these measured values.
- the Fikencher formula is as follows.
- the vinylpyrrolidone-based polymer powder of the present invention has a particle content of 10 ⁇ m or less (particle size of 106 ⁇ m or less) and particles with a particle size of more than 1000 ⁇ m (particle size of 106 ⁇ m or less). It is important that the content ratio of particles exceeding 100 m is 5% by mass or less. As a result, the bull pyrrolidone-based polymer powder of the present invention has excellent solubility, and can be made into a solution with good handleability in which dust does not fly. If the content of particles of 106 m or less exceeds 10% by mass, the solubility will be significantly reduced and the dust will be easy to fly and the handling will be impaired.
- the content of particles exceeding 1000 m exceeds 5% by mass, solubility decreases.
- the content of particles of 106 m or less is preferably 8% by mass or less, more preferably 5% by mass or less.
- the content of particles exceeding 1000 m is preferably 3% by mass or less, more preferably 1% by mass or less, still more preferably 0.5% by mass or less, and particularly preferably 0.3% by mass or less.
- the particle diameter is stipulated in JIS standard Z8801-1 !, and is measured by sieving using a sieve (JIS mesh 106 m or 1000 m). That's fine.
- the content of particles having a particle size of 106 m or less can be obtained from the following equation (1), and the content of particles having a particle size exceeding 1000 m can be obtained from the force of the following equation (2).
- Content of particles with a particle size of 106 m or less (mass%) (mass of powder that passed through JIS sieve 106 m sieve) mass of powder that was subjected to Z sieve classification X 100-(1)
- the vinylpyrrolidone-based polymer powder of the present invention can be easily obtained by, for example, the method for producing the bullpyrrolidone-based polymer powder of the present invention described later.
- the vinylpyrrolidone-based polymer powder of the present invention may appropriately contain an anti-oxidation agent and various additives described later as long as the effects and objects of the present invention are not impaired.
- the vinylpyrrolidone-based polymer powder of the present invention is excellent in solubility.
- the lg powder when the lg powder is dissolved in 100 g of water under stirring at 500 rpm.
- the dissolution time is less than 250 seconds.
- the specific measuring method of this dissolution time can be performed by the method mentioned later in an Example.
- K value is a vinylpyrrolidone-based polymer solution having a concentration of 30 to 70 weight 0/0 is less than 50 by Fikenchi Ja method (hereinafter, concentration 30-70 mass 0/0 and the K-values less than 50 Bulle pyrrolidone type polymer solution is sometimes referred to as "Bulle pyrrolidone type polymer containing solution".)
- concentration 30-70 mass 0/0 and the K-values less than 50 Bulle pyrrolidone type polymer solution is sometimes referred to as "Bulle pyrrolidone type polymer containing solution”.
- the concentration of 30 to 70 mass 0 / by a solution of 0 also K value is a vinylpyrrolidone polymer of less than 50, it can be dried into a sheet or a thin, chip-like dried product with a heating surface contact type drier and It becomes.
- Gayogu to a solution having a concentration of 30 to 60 wt% preferably set to a solution of concentration 30-55 mass 0/0.
- the bull pyrrolidone polymer having a K value of less than 50 according to the Fienchia method is as described in the section [Bul pyrrolidone polymer powder].
- the bull pyrrolidone-based polymer-containing solution may be a polymerization solution after polymerization in the polymerization reaction for obtaining the bull pyrrolidone-based polymer described above as long as the concentration is in the above range.
- it may be a solution obtained by dissolving a dried product of a vinyl pyrrolidone polymer in an appropriate solvent.
- the solvent that can be used is as described above as the solvent that can be used in the polymerization reaction when obtaining the bullpyrrolidone-based polymer.
- the dried product or the like may not be completely dissolved but may be partially dissolved.
- At least one kind of antioxidant is blended in the solution containing the bullpyrrolidone polymer. This suppresses changes in K value and coloration that can occur in subsequent drying, and improves the storage stability of the vinylpyrrolidone polymer.
- Antioxidants that can be used include, for example, phenolic antioxidants such as sodium salicylate and methylbenzotriazole potassium salt; bis such as 2,2, -methylenebis (4-methyl-6-tbutylphenol). Phenolic antioxidants; 1, 1, 3 Tris (2-methyl 4-hydroxy-5- t-butylphenol) butane and other polymeric phenolic antioxidants; dilauryl 3, 3'-thiodipropionate, etc.
- Sulfur antioxidants such as triphenyl phosphite; alcohol antioxidants such as erythorbic acid; amine antioxidants such as methylated diphenylamine; 4 benzoyloxy 2, 2, 6 , 6-tetramethylpiperidine and the like hindered amine acid / detergents; These antioxidants may be used alone or in combination of two or more.
- the amount of the antioxidant is not particularly limited with respect vinylpyrrolidone polymer, that preferably 0.0 0001-30 mass 0/0, and more preferably 0.01 to 3 mass 0/0 Good.
- the bullpyrrolidone-based polymer-containing solution may further contain various additives such as a processing stabilizer, a plasticizer, a dispersant, a filler, an anti-aging agent, a pigment, and a curing agent, if necessary. It can also contain suitably in the range which does not impair the objective and effect of this invention.
- the heating surface contact-type dryer is a device that dries by heating a material by heat conduction from a surface heated by a heat medium, that is, a heat transfer surface.
- heat A sheet-like dried product can be obtained by applying the bulurpyrrolidone-based polymer-containing solution on the surface.
- the heating surface contact type dryer includes a stock solution supply machine, and may further include a dried product peeling apparatus, a crusher, a transporter, and the like.
- the heat transfer surface may be a movable type or a fixed type as long as a heat medium exists inside and serves as a heating source for the material.
- the shape of the heat transfer surface may be a flat shape that is not particularly limited, or may be curved such as a convex surface or a concave surface, or may be other shapes.
- the material of the heat transfer surface is not particularly limited. For example, stainless steel, iron, titanium, Teflon (registered trademark), rubber, etc. are used, and any metal such as stainless steel can be used. High heat transfer efficiency is preferable.
- the heat transfer surface includes a transport belt, a tray filled with a material, and the like that are connected only by a surface heated by a heat medium.
- the heat medium is not particularly limited, and various conventionally known ones can be used. Specific examples thereof include organic heat medium oil such as Dowtherm (manufactured by Dow Chemical Co., Ltd.), hot water, steam, silicon oil. And an electric heater. In addition, it is possible to further increase the drying efficiency by using one or more infrared rays, microwaves, hot air, and the like, for example, in addition to the heating from the heat transfer surface.
- the stock solution feeder is not particularly limited, and various conventionally known formats can be used. For example, a swing nozzle, a header nozzle, a spray, a roller, a blade, a soaking bath, etc. Is mentioned.
- the dry matter peeling apparatus' instrument is not particularly limited, and various conventionally known types can be used. Examples thereof include a scraper such as a doctor knife, a paddle, and a spatula.
- the crushing and pulverizing machine is not particularly limited, and any one described later can be applied.
- the heating surface contact type dryer various conventionally known dryers can be used, for example, a disk rotary dryer, a drum rotary dryer (single, double, twin, etc.), a belt dryer, a shelf type Examples include dryers and multi-cylinder cylinder dryers.
- a disk rotary dryer, a drum rotary dryer, a belt dryer, and a shelf dryer are preferable.
- a disk rotary dryer and a drum rotary dryer are preferable from the viewpoint of thermal efficiency, rapidity, continuous operability, and the like.
- the drum or drum rotary dryer applies a solution of the bull pyrrolidone polymer to the surface of a rotating disk or a rotating drum heated from the inside by steam or other heat medium, and applies a thin film to the surface during one rotation. It is a device that evaporates and dries, and scrapes the dried product with a doctor knife or other scraper. It is possible to repeat the supply (application) and drying of the solution while the disk or drum rotates once.
- the temperature of the heat transfer surface of the dryer is not particularly limited, but the solvent for the bullpyrrolidone-based polymer-containing solution is not limited. It is more preferable to set the temperature to be io ° c or more higher than the preferred boiling point.
- a solution containing a bull pyrrolidone polymer (temperature, etc.)
- the force depending on the method for supplying the solution is preferably 80 ° C to 180 ° C, more preferably 100 ° C to 170 ° C, and still more preferably 120 ° C to 160 ° C.
- the drying time when the vinylpyrrolidone-based polymer-containing solution is dried using a heated surface contact-type dryer the vinylpyrrolidone-based polymer-containing solution (concentration, etc.), the method for supplying the solution, and the dryer You can set any time depending on the, etc., but usually it is preferable to do it in the range of 0.1 minutes to 120 minutes.
- the vinylpyrrolidone-based polymer-containing solution when the vinylpyrrolidone-based polymer-containing solution is dried using a heated surface contact-type dryer, the vinylpyrrolidone-based polymer-containing solution (concentration, etc.), the method for supplying the solution, Power due to dryers, etc. 0. 05mn! ⁇ 10mm is preferable 0. lmn! More preferably, it is about 5 mm.
- the method for adjusting the coating thickness is not particularly limited, such as adjusting the balance between the calendar, blade, roller, etc. and the heat transfer surface, adjusting the viscosity of the solution, adjusting the supply rate of the solution, etc. Any method can be applied.
- the supply rate of the solution when the vinylpyrrolidone-based polymer-containing solution is dried using a heated surface contact-type dryer may be set as appropriate in consideration of productivity and drying characteristics that are not particularly limited. Good.
- the content of particles of 106 m or less is 10 mass% or less, and the content of particles exceeding 1000 m Force to pulverize to 5 mass% or less, or (b) pulverization and then 106 / zm or less It is important to classify so that the content of the lower particles is 10% by mass or less and the content of particles exceeding 1000 ⁇ m is 5% by mass or less. As a result, it is possible to obtain the vinyl vinylidone-based polymer powder of the present invention which has excellent solubility and can be made into a solution with good handling and properties without causing dust to dance.
- the equipment that can be used for pulverization is not particularly limited, and examples thereof include a paddle type, a hammer mill, a pin mill, a ball mill, a thin mill, and a vibration mill.
- the equipment that can be used for classification is not particularly limited, and examples thereof include an air flow classifier and a sieve classifier.
- drying, pulverization and classification may be performed in a dehumidified atmosphere depending on the properties of the product powder (hygroscopicity, etc.).
- the K value by the Fikencher method is low and the vinyl pyrrolidone-based polymer has excellent solubility and good handling property that does not cause dust to fly. It is possible to provide a vinylpyrrolidone polymer powder that can be made into a solution and a method for producing the same.
- a reaction vessel was charged with 0.23 parts of copper sulfate and 426.3 parts of water, and the temperature was raised to 80 ° C. Next, while maintaining the temperature at 80 ° C., 450 parts of N bulupyrrolidone, 3.6 parts of 25% aqueous ammonia, and 15 parts of 35% hydrogen peroxide / hydrogen peroxide were separately added dropwise over 180 minutes. After completion of the dropwise addition, 4.5 parts of 35% hydrogen peroxide solution was added evenly in 5 portions and added at 1 hour intervals. After the 5th addition, the solution was kept at 80 ° C for 1 hour to obtain a polybulurpyrrolidone concentration. A polyvinylpyrrolidone aqueous solution having a water content of 50% was obtained. The K value of polybulurpyrrolidone in the aqueous solution was 30, and the amount of residual N-bulurpyrrolidone in the aqueous solution was 10 ppm or less with respect to polybulurpyrrolidone.
- the aqueous solution of polyvinyl pyrrolidone obtained in the above production example was heated using a disk rotary dryer (“CD dryer” manufactured by Nishimura Oriko Co., Ltd .; disk diameter: 50 cm), which was a heated surface contact type dryer, and the disk temperature was 120 ° C. Drying was performed at a rotational speed of 5 rpm to obtain a thin chip-like dried product.
- the nonvolatile content was 96.2%.
- the dried product was pulverized using a hammer type pulverizer ("Victory Mill VP-1 type” manufactured by Hosokawa Micron Corporation) with a screen opening of 1.2 mm, a rotation speed of 4000 rpm, and a supply speed of 121 kgZ, and then airflow classification.
- a machine (“Micron Separator MS-1 type” manufactured by Hosokawa Micron Corporation) classification is performed at 1600 rpm, primary air volume 8.7 m 3 Z, secondary air volume 6.3 m 3 Z, and fine powder Coarse powder was removed.
- the obtained powder was classified by sieve, and the content of particles having a particle size of 106 ⁇ m or less and the content of particles having a particle size exceeding 1000 m were measured.
- the measurement of the content of particles was performed according to the following procedure.
- a table-type sieve classifier (“Micro-type electromagnetic vibrating sieve machine M-2 type” manufactured by Tsutsui Rika Instruments Co., Ltd.) Specified in Z8801-1-1 of the standard!
- a sieve JIS aperture 106 ⁇ m and 1000 ⁇ m
- a saucer are attached, and 5 g of powder obtained by classification is placed on a sieve with an aperture of 1000 m. The sample was charged and sieved for 10 minutes according to the vibration scale.
- the mass (W g) of the powder deposited on each was measured.
- the particle size is 1000 from the measured mass.
- the aqueous polyvinyl pyrrolidone solution obtained in the above production example is dried at a drum temperature of 120 ° C. and a rotation speed of 3 rpm using a drum rotary dryer (“Drum dryer” manufactured by Katsuragi Kogyo Co., Ltd.) which is a heated surface contact type dryer.
- a drum rotary dryer (“Drum dryer” manufactured by Katsuragi Kogyo Co., Ltd.) which is a heated surface contact type dryer.
- the nonvolatile content was 95.6%.
- the dried product was pulverized for 2 seconds using a table crusher (rwonder Brenderj, manufactured by Osaka Chemical Co., Ltd.), and then a table-type sieving classifier ("Micro Electromagnetic Vibrating Sieve M-2" manufactured by Tsutsui Rika Instruments Co., Ltd.). )), And classified as a vibration scale of 5 for 10 minutes.
- a table crusher rwonder Brenderj, manufactured by Osaka Chemical Co., Ltd.
- a table-type sieving classifier (“Micro Electromagnetic Vibrating Sieve M-2" manufactured by Tsutsui Rika Instruments Co., Ltd.).
- the desktop type sieve classifier has a sieve CFIS opening defined in JIS standard Z8801-1.
- the polyvinyl pyrrolidone aqueous solution obtained in the above production example was dried under the same conditions as in Example 2 above, using a drum rotary dryer ("Drum dryer” manufactured by Katsuragi Kogyo Co., Ltd.) which is a heated surface contact type dryer. A thin chip-like dried product was obtained. The nonvolatile content was 96.0%.
- the dried product was pulverized using a hammer type pulverizer ("Feather Mill FM-1 type" manufactured by Hosokawa Micron Corporation) at a screen opening of 3 mm, a rotation speed of 2900 rpm, and a supply speed of 108 kgZ.
- a hammer type pulverizer (“Feather Mill FM-1 type” manufactured by Hosokawa Micron Corporation) at a screen opening of 3 mm, a rotation speed of 2900 rpm, and a supply speed of 108 kgZ.
- the content power of particles of 106 ⁇ m or less was 7.1%, the content of particles exceeding 1000 ⁇ m was 0%, and a comparative polybutylpyrrolidone powder with an average particle size of 104 ⁇ m was obtained. Obtained.
- the vinylpyrrolidone polymer powder useful for the present invention is, for example, a bull pyrrolidone having a K value of less than 50, which is suitable for applications such as adhesives for stick glue, cosmetic raw materials such as humectants and hair styling agents, and tablet binders.
- the polymer can be preferably applied when used by dissolving in a solvent.
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Abstract
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Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112005002670T DE112005002670T5 (de) | 2004-11-05 | 2005-11-02 | Pulver eines Vinylpyrrolidonpolymers und ein Verfahren zur Herstellung davon |
| JP2006542427A JP4928271B2 (ja) | 2004-11-05 | 2005-11-02 | ビニルピロリドン系重合体粉体およびその製造方法 |
| US11/666,883 US7910672B2 (en) | 2004-11-05 | 2005-11-02 | Powder of a vinylpyrrolidone polymer and a process for production thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004322770 | 2004-11-05 | ||
| JP2004-322770 | 2004-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006049214A1 true WO2006049214A1 (ja) | 2006-05-11 |
Family
ID=36319219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/020220 Ceased WO2006049214A1 (ja) | 2004-11-05 | 2005-11-02 | ビニルピロリドン系重合体粉体およびその製造方法 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7910672B2 (ja) |
| JP (1) | JP4928271B2 (ja) |
| DE (1) | DE112005002670T5 (ja) |
| WO (1) | WO2006049214A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008120982A (ja) * | 2006-11-15 | 2008-05-29 | Nippon Shokubai Co Ltd | ビニルピロリドン系重合体粉末およびその製造方法 |
| JP2019214643A (ja) * | 2018-06-11 | 2019-12-19 | 株式会社日本触媒 | ポリビニルピロリドン重合体の製造方法 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005020347A1 (de) * | 2005-05-02 | 2006-11-09 | Basf Ag | Verfahren zur Herstellung von Doppelmetallcyanidkomplex-Katalysatoren |
| GB0609797D0 (en) * | 2006-05-17 | 2006-06-28 | Univ Aston | Adhesive solution for application to the skin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11349687A (ja) * | 1998-04-07 | 1999-12-21 | Nippon Shokubai Co Ltd | 粒子状含水ゲル状重合体および吸水性樹脂の製造方法 |
| EP1130045A2 (en) * | 2000-02-29 | 2001-09-05 | Nippon Shokubai Co., Ltd. | Water-absorbent resin powder and production process therefor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4125602A (en) * | 1974-12-02 | 1978-11-14 | Ciba-Geigy Corporation | Process for the production of iodophors |
| CH612983A5 (en) * | 1974-12-02 | 1979-08-31 | Ciba Geigy Ag | Process for the preparation of iodophores |
| DE3532747A1 (de) | 1985-09-13 | 1987-03-26 | Basf Ag | Verfahren zur herstellung von polyvinylpyrrolidon |
| US5158768A (en) * | 1991-10-08 | 1992-10-27 | Isp Investments Inc. | Process for preparing a stable, low K-value, water-soluble PVP-iodine product |
| JP4676625B2 (ja) * | 2000-02-29 | 2011-04-27 | 株式会社日本触媒 | 吸水性樹脂粉末の製造方法 |
| JP4573998B2 (ja) | 2000-11-17 | 2010-11-04 | 株式会社日本触媒 | ビニルピロリドン系重合体粉体の製造方法 |
| JP3900428B2 (ja) * | 2003-01-08 | 2007-04-04 | 第一工業製薬株式会社 | 粉末状ビニルピロリドン重合体の製造方法 |
| JP2005343931A (ja) * | 2004-05-31 | 2005-12-15 | Dai Ichi Kogyo Seiyaku Co Ltd | 顆粒状ビニルピロリドン重合体の製造方法 |
-
2005
- 2005-11-02 US US11/666,883 patent/US7910672B2/en not_active Expired - Fee Related
- 2005-11-02 WO PCT/JP2005/020220 patent/WO2006049214A1/ja not_active Ceased
- 2005-11-02 DE DE112005002670T patent/DE112005002670T5/de not_active Ceased
- 2005-11-02 JP JP2006542427A patent/JP4928271B2/ja not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11349687A (ja) * | 1998-04-07 | 1999-12-21 | Nippon Shokubai Co Ltd | 粒子状含水ゲル状重合体および吸水性樹脂の製造方法 |
| EP1130045A2 (en) * | 2000-02-29 | 2001-09-05 | Nippon Shokubai Co., Ltd. | Water-absorbent resin powder and production process therefor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008120982A (ja) * | 2006-11-15 | 2008-05-29 | Nippon Shokubai Co Ltd | ビニルピロリドン系重合体粉末およびその製造方法 |
| JP2019214643A (ja) * | 2018-06-11 | 2019-12-19 | 株式会社日本触媒 | ポリビニルピロリドン重合体の製造方法 |
| JP7195771B2 (ja) | 2018-06-11 | 2022-12-26 | 株式会社日本触媒 | ポリビニルピロリドン重合体の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112005002670T5 (de) | 2007-09-13 |
| JPWO2006049214A1 (ja) | 2008-05-29 |
| US7910672B2 (en) | 2011-03-22 |
| US20080153988A1 (en) | 2008-06-26 |
| JP4928271B2 (ja) | 2012-05-09 |
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