WO2002081533A1 - Particules de polymere carboxyle - Google Patents
Particules de polymere carboxyle Download PDFInfo
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- WO2002081533A1 WO2002081533A1 PCT/JP2002/002745 JP0202745W WO02081533A1 WO 2002081533 A1 WO2002081533 A1 WO 2002081533A1 JP 0202745 W JP0202745 W JP 0202745W WO 02081533 A1 WO02081533 A1 WO 02081533A1
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- carboxyl group
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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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
Definitions
- the present invention relates to carboxyl group-containing polymer particles. More specifically, the present invention relates to lipoxyl group-containing polymer particles which can be suitably used as a thickener for cosmetics and the like, and a suspension stabilizer for emulsions and suspensions, and a method for producing the same.
- Background art
- carboxyl group-containing polymer examples include:, such as acrylic acid; a copolymer of 8-unsaturated carboxylic acid and polyallyl ether (US Pat. No. 2,923,692), a, Copolymers of saturated carboxylic acids and hexaryltrimethylene trisulfone (US Pat. No. 2,958,679), and copolymers of unsaturated carboxylic acids and triaryl phosphate ( U.S. Pat. No. 3,426,004), and a copolymer of ⁇ -unsaturated carboxylic acid and glycidyl methacrylate (Japanese Patent Application Laid-Open No. 58-18819). Have been.
- carboxyl group-containing polymer particles are dispersed and swelled in water, and then neutralized with an alkali to form a neutralized viscous liquid, thereby increasing the viscosity of cosmetics and other thickening agents, emulsions and suspensions. It is used for applications such as suspension stabilizers for turbid substances.
- the neutral viscous liquid obtained by neutralizing the particles of the carboxyl group-containing polymer with an alcohol has a disadvantage that the gloss and the like are inferior because the smoothness and transparency of the liquid surface are insufficient. . Therefore, if the surface is to be smoothed, it depends on the stirrer used in the neutralization process and stirring conditions, but a long time of stirring is required when neutralizing with alkali, and in some cases more than 10 hours In some cases, it may be necessary to stir and mix, which is disadvantageous in that productivity is poor. Disclosure of the invention
- the present invention has been made in view of the above prior art, and has as its object to provide carboxyl group-containing polymer particles that provide a neutralized viscous liquid having excellent surface smoothness and transparency.
- the present invention is a.
- the amount based on 100 parts by weight of the inert solvent is 6 to 25 parts by volume, and the amount based on 100 parts by weight of ⁇ -unsaturated carboxylic acid and In an inert solvent, 2 parts by weight of a compound having two or more ethylenically unsaturated groups is added in an inert solvent in an amount of 0.01 to 0.45 parts by weight based on 100 parts by weight of, ⁇ monounsaturated carboxylic acid.
- the carboxyl group-containing polymer particles of the present invention when dispersed and swelled in water at a concentration of 0.5% by weight, have a water-swelling gel particle having a particle size of less than 50 / m.
- the water-swelled gel particles having a particle size of 55 to 94% by volume and a particle diameter of 50 / m or more are present at a ratio of 6 to 45% by volume.
- the carboxyl group-containing polymer particles of the present invention are obtained when dispersed and swelled in water at a predetermined concentration because the water-swelled gel particles of the carboxyl group-containing polymer have a specific particle size distribution.
- the surface of the neutralized viscous liquid becomes smooth and transparent. An excellent effect of obtaining a neutralized viscous liquid having excellent lightness is exhibited.
- the carboxyl group-containing polymer particles are dispersed and swelled in water so as to have a concentration of 0.5% by weight.
- concentration of 0.5% by weight In general, when used in cosmetics, etc., they are used at a concentration of 0.5% by weight or less. This is because the smoothness of the surface of the 0.5% by weight neutralized viscous liquid is noticed.
- “when dispersed and swelled in water” means that the carboxyl group-containing polymer particles are dispersed and swelled in water, and the swelling reaches an equilibrium state.
- the water temperature at the time of dispersing and swelling with water is not particularly limited, but is usually about 20 to 30 ° C.
- the particle size of the water-swelled gel particles when dispersed in water at a concentration of 0.5% by weight is as follows. Put 20.25 g of ion exchanged water at 25 ° C in a 20-OmL beaker. While stirring at 600 revolutions per minute with a stirrer (length 28 mm, thickness 7 mm), 0.75 g of carboxyl group-containing polymer particles was gradually added, followed by stirring for 1.5 hours. A 0.5% by weight aqueous dispersion of the lipoxyl group-containing polymer particles was obtained by using a laser diffraction type particle size distribution measuring device [manufactured by Shimadzu Corporation, trade name: SALD-200J]. It refers to the particle size when measured using.
- the content of the water-swelled gel particles having each particle size was determined by measuring the particle size with the laser diffraction single-particle size distribution analyzer and simultaneously measuring the number of particles having each particle size, and regarded the particles as spheres.
- the particle size of the water-swelled gel particles is defined as less than 50 m. The reason is that if the number of particles having a particle diameter of 50 or more is large, the smoothness of the surface of the neutralized viscous liquid of the carboxyl group-containing polymer particles is inferior.
- the particle diameter of the water-swelled gel particles is preferably 0.1 m or more and less than 50 m. .
- the amount of the water-swellable gel particles having a particle size of less than 50 zm when dispersed in water at a concentration of 0.5% by weight is intended to smooth the surface of the neutralized viscous liquid of the carboxyl group-containing polymer particles.
- the content is 55% by volume or more, preferably 58% by volume or more, and more preferably 60% by volume or more.
- the amount of the water-swellable gel particles having a particle size of less than 50 zm is preferably 94% by volume or less, and more preferably 94% by volume, from the viewpoint of increasing the transparency of the neutralized viscous liquid of the carboxyl group-containing polymer particles. It is at most 92% by volume, more preferably at most 90% by volume.
- the particle size of the water-swelled gel particles is specified to be 50 m or more. This is because the transparency of the neutralized viscous liquid of the xyl group-containing polymer particles is poor.
- the particle size of the water-swelled gel particles is preferably 5 or more and 300 zm or less from the viewpoint of increasing the transparency of the neutralized viscous liquid of the carboxyl group-containing polymer particles.
- the amount of the water-swellable gel particles having a particle size of 50 m or more when dispersed in water at a concentration of 0.5% by weight depends on the surface of the neutralized viscous liquid of the carboxyl group-containing polymer particles. From the viewpoint of clarity, the content is 45% by volume or less, preferably 42% by volume or less, and more preferably 40% by volume or less.
- the amount of the water-swellable gel particles having a particle diameter of 50 m or more is preferably 6% by volume or more, more preferably 8% or more, from the viewpoint of increasing the transparency of the neutralized viscous liquid of the carboxyl group-containing polymer particles. % By volume or more, more preferably 10% by volume or more.
- the particle diameter is preferably less than 5 O ⁇ m.
- the content of the water-swelled gel particles is 55 to 94% by volume, preferably 58 to 92% by volume, more preferably 60 to 90% by volume.
- the carboxyl group-containing polymer particles that give water-swelled gel particles having a specific particle size distribution when dispersed and swelled in water at the above-mentioned predetermined concentration include a specific amount of a, j3-unsaturated carboxylic acid and a specific amount. And a compound having two or more ethylenically unsaturated groups in an inert solvent in the presence of a specific amount of a radical polymerization catalyst at a specific temperature.
- the a, / 3-unsaturated carboxylic acid is not particularly limited, and examples thereof include acrylic acid, methacrylic acid, crotonic acid, maleic acid, itaconic acid, fumaric acid, and other unsaturated carboxylic acids. it can. These may be used alone or in combination of two or more. Among these, acrylic acid is preferred because it is inexpensive and easily available, and is excellent in transparency of the neutralized viscous liquid of the carboxyl group-containing polymer particles.
- the amount of monounsaturated carboxylic acid is 6 to 25 parts by volume, preferably 8 to 22 parts by volume, more preferably 13 to 20 parts by volume with respect to 100 parts by volume of an inert solvent described later.
- Parts. , ⁇ -Unsaturated carboxylic acid when the amount is less than the lower limit, the transparency of the resulting neutralized viscous liquid of the carboxyl group-containing polymer particles is deteriorated, and exceeds the upper limit. In such a case, the polymer particles precipitate as the reaction proceeds, and it becomes difficult to stir uniformly, so that the surface of the neutralized viscous liquid of the obtained carboxyl group-containing polymer particles becomes less smooth. Become.
- the compound having two or more ethylenically unsaturated groups is not particularly limited, and may be, for example, ⁇ , ethylene glycol, diethylene glycol, propylene glycol, polyoxyethylene glycol, polyoxypropylene glycol, glycerin, polyglycerin, trimethylolpropane
- Di- or more substituted acrylates of polyols such as erythritol, saccharose, and sorbitol; pen- or more-substituted methacrylic esters of these polyols; 2- or more-substituted aryl ethers of these polyols; Diaryl phosphate, triallyl phosphate, aryl methacrylate, tetraaryloxetane, triaryl cyanurate, divinyl adipate Crotonate, 1,5-hexadiene, divinylbenzene and the like.
- carboxyl group-containing polymer particles are composed of pentaerythritol tetraaryl ether, ethylene glycol diaryl ether and polyallyl saccharose. At least one selected from the group is preferred.
- the amount of the compound having two or more ethylenically unsaturated groups is 0.15 to 2 parts by weight, preferably 0.3 to 1.5 parts by weight based on 100 parts by weight of the 8-unsaturated carboxylic acid. Parts by weight.
- the amount of the compound having two or more ethylenically unsaturated groups is less than the lower limit, the viscosity of the neutralized viscous liquid of the obtained carboxyl group-containing polymer particles decreases and exceeds the upper limit. In such a case, an insoluble gel is easily generated in the neutralized viscous liquid of the obtained carboxyl group-containing polymer particles.
- the above radical polymerization catalyst is not particularly limited. Lauroyl peroxide, cumene hydroperoxide, tertiary butyl hydroperoxide and the like can be mentioned. Among them, azobisisobutyronitonyl is preferably used from the viewpoint of easy handling and excellent stability.
- the amount of the radical polymerization catalyst is -0.1 to 0.45 parts by weight, preferably 0.01 to 0.35 parts by weight, per 100 parts by weight of the unsaturated carboxylic acid.
- the amount of the radical polymerization catalyst is less than the lower limit, the reaction rate is slow, so that it is not economical.
- the amount exceeds the upper limit the obtained carboxyl group-containing polymer particles are neutralized. The surface of the viscous liquid becomes less smooth.
- inert solvent refers to a solvent that dissolves a compound having two or more unsaturated carboxylic acids and two or more ethylenically unsaturated groups, but does not dissolve the obtained carboxyl group-containing polymer particles.
- inert solvent for example, normal pentane, normal hexane, isohexane Xane, normal heptane, normal octane, isooctane, cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, benzene, toluene, xylene, methylbenzene, ethylenedichloride, ethyl acetate, isopropyl acetate, methylethyl ketone, Methyl isobutyl ketone and the like
- ethylene dichloride is preferred from the viewpoint of stable quality and easy availability.
- the reaction is preferably carried out in the presence of an alkali metal carbonate together with a radical polymerization catalyst.
- an alkali metal carbonate include sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate and the like. Among these, sodium carbonate and hydrogencarbonate are preferred because the viscosity of the resulting neutralized viscous solution of the carboxyl group-containing polymer particles does not decrease much.
- the amount of the alkali metal carbonate is preferably from 0.01 to 5 parts by weight, based on 100 parts by weight of, ⁇ -unsaturated carboxylic acid. Is preferably 0.05 to 3 parts by weight.
- the alkali metal carbonate can be added before or during the reaction, but from the viewpoint of more effectively improving the smoothness of the surface of the neutralized viscous liquid of the carboxyl group-containing polymer particles. It is preferably added before the start of the reaction.
- the atmosphere in which the 8-unsaturated carboxylic acid is reacted with a compound having two or more ethylenically unsaturated groups is preferably an inert gas such as a nitrogen gas or an argon gas.
- the reaction temperature reduces the viscosity of the reaction solution so that it can be uniformly stirred. From 50 to 90 ° C, and preferably from 55 to 75 ° C, from the viewpoint of improving the smoothness of the surface of the resulting neutralized viscous liquid of the carboxyl group-containing polymer particles. Is desirable.
- the reaction time varies depending on the reaction temperature and cannot be unconditionally determined, but is usually 2 to 10 hours.
- the reaction solution is heated to 80 to 130 ° C., and the inert solvent is volatilized and removed, whereby carboxyl group-containing polymer particles as fine white powder can be obtained. If the heating temperature exceeds 130 ° C., the smoothness of the surface of the obtained neutralized viscous liquid of the carboxyl group-containing polymer particles may be deteriorated.
- the carboxyl group-containing polymer particles of the present invention are obtained.
- the powder of the obtained carboxyl group-containing polymer particles is usually secondary particles in which primary particles are aggregated.
- a neutralized viscous liquid is prepared by using the obtained carboxyl group-containing polymer particles, it is usually dispersed in water so that the concentration of the carboxyl group-containing polymer particles becomes 0.01 to 3% by weight. After that, it may be neutralized with an alkali metal hydroxide such as sodium hydroxide or the like, or an amine such as triethanolamine or diisopropanolamine.
- the resulting neutralized viscous liquid has excellent properties such as a smooth surface and high transparency.
- the reason why this neutralized viscous liquid has such excellent properties is not clear, but it is supposed that when the carboxyl group-containing polymer particles are dispersed and swelled in water, the secondary of the carboxyl group-containing polymer particles is probably It is presumed that the particles are dispersed in water and exist in water mainly as water-swellable gel particles of primary particles of carboxyl group-containing polymer particles.
- Example 1 Example 1
- Acrylic acid 63 g (6 OmL), Penyu erythritol tetraaryl ether 0.44 g, azo in four 50 OmL flasks equipped with a stirrer, thermometer, nitrogen inlet tube and cooling tube Bisisobutyronitrile (0.016 g) and ethylene dichloride (375 g, 30 OmL) were charged. Subsequently, after uniformly stirring and mixing, nitrogen gas was blown into the solution in order to remove oxygen present in the upper space of the reaction vessel, the raw materials and the solvent. Then, the mixture was reacted at 70 to 75 ° C. for 3 hours under a nitrogen atmosphere.
- a 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and a laser-diffraction particle size distribution analyzer [manufactured by Shimadzu Corporation, product number: S ALD-200 J]
- the particle diameter of the water-swellable gel particles was determined to be 0% by volume for particles less than 0.1 / Jtm, 72% by volume for particles 0.1 m or more and less than 50 / m, 27.6% by volume of particles of 50 m or more and 300 / zm or less, and 0.4% by volume of particles exceeding 300 ⁇ m.
- Example 1 the charged composition in the four-necked flask was 57.3 g (54.6 mL) of acrylic acid, 0.66 g of pentaerythritol tetraaryl ether, and 0.96 g of azobisisobutyronitrile. 58 g of carboxyl group-containing polymer particles were obtained in the same manner as in Example 1 except that the reaction temperature was changed to 1 g and 525 g (42 OmL) of ethylene dichloride, and the reaction temperature was changed to 55 to 60 ° C.
- Example 3 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. 0% by volume of full particles, 81% by volume of particles from 0.1 zm to less than 50m, 18.8% by volume of particles from 50 ⁇ m to 300 / m or less, 300% More than 0.2% by volume of particles were present.
- Example 2 In the same manner as in Example 1, except that 0.74 g of diethylene glycol diaryl ether was used instead of 0.44 g of pentaerythritol tetraaryl ether, the polymer particles containing carboxyl group 6 were used in the same manner as in Example 1. 3 g were obtained.
- Example 4 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, the particle size of the water-swellable gel particles was determined. Is that 0% by volume of particles less than 0.1 zm, 73% by volume of particles from 0.1 to less than 50 zm, 26.9% by volume of particles from 50 zm to 300 3m, Particles exceeding 300 m were present at 0.1% by volume.
- Example 4 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, the particle size of the water-swellable gel particles was determined. Is that 0% by volume of particles less than 0.1 zm, 73% by volume of particles from 0.1 to less than 50 zm, 26.9% by volume of
- Example 1 63 g of carboxyl group-containing polymer particles were obtained in the same manner as in Example 1 except that 0.42 g of polyacrylyl sucrose was used instead of 0.44 of pentaerythritol tetraaryl ether. I got
- Example 5 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.5 lm were found. 0 volume%, particles of 0.1 to less than 50 zm are 72 volume%, particles of 50 ⁇ m to 300 m are 27.6 volume%, and particles of more than 300 m are 0.4 % By volume.
- Example 5 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.5 lm were found. 0 volume%, particles of 0.1 to less than 50 zm are 72 volume%, particles of 50 ⁇ m to 300 m are 27.6 volume%, and particles of more than 300 m are 0.4 % By volume.
- Example 5 A 0.5% by
- Example 1 was repeated except that 0.5 g of sodium carbonate was simultaneously charged in Example 1. In the same manner as in 1, carboxyl group-containing polymer particles (64 g) were obtained.
- Example 6 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.1 zm were obtained. However, there are 74% by volume of particles from 0.01 im to less than 50 zm, 26% by volume of particles from 50 m to 300 m, and 0% by volume of particles exceeding 300 m. Was.
- Example 1 65 g of carboxyl group-containing polymer particles were obtained in the same manner as in Example 1, except that 0.9 g of sodium carbonate was simultaneously charged.
- a 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.1 m were obtained. 0 volume%, 0.1 // m or more and less than 50 im 75 volume%, 50 m or more and 300 / m or less particle 25 volume, and 300 m or more particle 0 volume% I was Example 7
- Example 1 6 g of carboxyl group-containing polymer particles were obtained in the same manner as in Example 1, except that 1.8 g of potassium hydrogen carbonate was simultaneously charged.
- a 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. 77% by volume of particles having a volume of 0.1 or more and less than 50, 23 volumes of particles having a size of 50 m or more and 300 m or less, and 0% by volume of particles having a volume of more than 300 / m.
- Example 1 Comparative Example 1
- the charged composition of the four-necked flask was 30 g of acrylic acid (28.6 mL), 0.47 g of pentaerythritol tetraaryl ether, 0.15 g of azobisisobutyronitrile and 4.1 g of ethylene dichloride ( 328. 8 mL), and 30 g of lipoxyl group-containing polymer particles were obtained in the same manner as in Example 1 except that the reaction temperature was changed to 45 to 50 ° C.
- Example 2 A 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.1 zm were obtained. Is 0.2% by volume, 95% by volume of particles from 0.1 m to less than 50zm, 4.8% by volume of particles from 50 to 300um, and 0% by volume of particles exceeding 300zm Existed. Comparative Example 2
- Example 1 the charged composition of the four-neck flask was set to 110.25 g of acrylic acid.
- a 0.5% by weight aqueous dispersion of the obtained carboxyl group-containing polymer particles was prepared, and the particle size distribution of the water-swellable gel particles was measured in the same manner as in Example 1. As a result, particles less than 0.1 m were obtained. Is 0% by volume, 28% by volume of particles from 0.1 im to less than 50zm, 69.2% by volume of particles from 50m to 300m, and 2.
- the surface of the neutralized viscous liquid of the obtained carboxyl group-containing polymer particles was visually evaluated.
- a total of 10 male and female genders were used as the evaluation panelists, and the number of panelists who felt it was good for the evaluation of the smoothness of the surface of the neutralized viscous liquid was counted, and judged based on the following evaluation criteria. In the normal case, if the following evaluation criteria are A or more, it can be determined that the surface is excellent in smoothness.
- the neutralized viscous liquid of the carboxyl group-containing polymer particles obtained in the above (1) was placed in a 1 cm ⁇ 1 cm cell, and the transmittance at a wavelength of 425 nm was measured. In a normal case, if the transmittance is 92% or more, it can be determined that the transparency is excellent.
- the neutralized viscous liquid of the carboxyl group-containing polymer particles obtained in the above (1) was measured using a B-type rotational viscometer under the conditions of rotor No. 7, 20 revolutions per minute, and a temperature of 25. Was.
- the deviation at 25 ° C is more than 4 000 OmPa-s If so, it can be determined that the viscosity is high.
- the neutralized viscous liquid of the carboxyl group-containing polymer particles obtained in Examples 1 to 7 has excellent surface smoothness and transparency, and has high viscosity and is used as a thickener. It turns out to be useful. Industrial applicability
- the carboxyl group-containing polymer particles of the present invention have a specific particle size distribution when formed into water-swelled gel particles obtained by dispersing in water, the resulting neutralized viscous liquid has a smooth surface and It has excellent transparency.
- the neutralized viscous liquid has a high viscosity and is useful as a thickener for cosmetics and the like.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/473,976 US6933356B2 (en) | 2001-04-05 | 2002-03-22 | Particles of carboxylated polymer |
DE60231201T DE60231201D1 (de) | 2001-04-05 | 2002-03-22 | Teilchen von carboxyliertem polymer |
KR1020037012985A KR100824248B1 (ko) | 2001-04-05 | 2002-03-22 | 카르복실기 함유 중합체 입자 |
EP02713182A EP1384734B1 (en) | 2001-04-05 | 2002-03-22 | Particles of carboxylated polymer |
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JP2001-106944 | 2001-04-05 | ||
JP2001106944A JP4883844B2 (ja) | 2001-04-05 | 2001-04-05 | カルボキシル基含有重合体粒子 |
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WO2002081533A1 true WO2002081533A1 (fr) | 2002-10-17 |
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PCT/JP2002/002745 WO2002081533A1 (fr) | 2001-04-05 | 2002-03-22 | Particules de polymere carboxyle |
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US (1) | US6933356B2 (ja) |
EP (1) | EP1384734B1 (ja) |
JP (1) | JP4883844B2 (ja) |
KR (1) | KR100824248B1 (ja) |
CN (1) | CN1239536C (ja) |
DE (1) | DE60231201D1 (ja) |
WO (1) | WO2002081533A1 (ja) |
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US7811605B2 (en) | 2002-11-06 | 2010-10-12 | Uluru Inc. | Method of formation of shape-retentive aggregates of gel particles and their uses |
US7351430B2 (en) * | 2002-11-06 | 2008-04-01 | Uluru Inc. | Shape-retentive hydrogel particle aggregates and their uses |
KR100680568B1 (ko) * | 2006-06-29 | 2007-02-08 | (주)에이오앤 | 단열 히터 재킷 |
US7910135B2 (en) | 2006-10-13 | 2011-03-22 | Uluru Inc. | Hydrogel wound dressing and biomaterials formed in situ and their uses |
US20080228268A1 (en) * | 2007-03-15 | 2008-09-18 | Uluru, Inc. | Method of Formation of Viscous, Shape Conforming Gels and Their Uses as Medical Prosthesis |
JP2019094444A (ja) * | 2017-11-24 | 2019-06-20 | Sdpグローバル株式会社 | 吸水性樹脂粒子及びその製造方法 |
WO2023074720A1 (ja) | 2021-10-27 | 2023-05-04 | 住友精化株式会社 | α,β-不飽和カルボン酸化合物の架橋重合体及びその用途 |
WO2023074719A1 (ja) | 2021-10-27 | 2023-05-04 | 住友精化株式会社 | α,β-不飽和カルボン酸化合物の架橋重合体及びその用途 |
WO2023074718A1 (ja) | 2021-10-27 | 2023-05-04 | 住友精化株式会社 | α,β-不飽和カルボン酸化合物の架橋重合体及びその用途 |
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WO2000077093A1 (fr) * | 1999-06-15 | 2000-12-21 | Sumitomo Seika Chemicals Co., Ltd. | Composition polymere carboxylee |
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JPS5884819A (ja) | 1981-11-16 | 1983-05-21 | Seitetsu Kagaku Co Ltd | 架橋型カルボキシル基含有共重合体の製造方法 |
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JPH08157531A (ja) | 1994-12-07 | 1996-06-18 | Nippon Synthetic Chem Ind Co Ltd:The | 高吸水性樹脂の製造法 |
JPH08157606A (ja) | 1994-12-07 | 1996-06-18 | Nippon Synthetic Chem Ind Co Ltd:The | 高吸水性樹脂の製造法 |
WO1996018714A1 (fr) * | 1994-12-15 | 1996-06-20 | Nippon Shokubai Co., Ltd. | Adjuvant pour detergent, son procede de fabrication et composition detergente le contenant |
JP3732557B2 (ja) * | 1995-07-12 | 2006-01-05 | 住友精化株式会社 | カルボキシル基含有重合体組成物 |
JP3649299B2 (ja) | 1995-12-08 | 2005-05-18 | 株式会社資生堂 | 水溶性増粘剤及びこれを配合した化粧料 |
IT1291520B1 (it) | 1997-04-09 | 1999-01-11 | 3V Sigma Spa | Copolimeri acrilici in emulsione acquosa con miglior potere addesante e sospendente;nuovi monomeri e loro preparazione |
JPH11292936A (ja) * | 1998-04-15 | 1999-10-26 | Nippon Shokubai Co Ltd | ポリアクリル酸(塩)、吸水性樹脂およびその製造方法、並びに衛生材料 |
-
2001
- 2001-04-05 JP JP2001106944A patent/JP4883844B2/ja not_active Expired - Fee Related
-
2002
- 2002-03-22 EP EP02713182A patent/EP1384734B1/en not_active Expired - Fee Related
- 2002-03-22 US US10/473,976 patent/US6933356B2/en not_active Expired - Lifetime
- 2002-03-22 KR KR1020037012985A patent/KR100824248B1/ko active IP Right Grant
- 2002-03-22 CN CNB028077881A patent/CN1239536C/zh not_active Expired - Fee Related
- 2002-03-22 WO PCT/JP2002/002745 patent/WO2002081533A1/ja active Application Filing
- 2002-03-22 DE DE60231201T patent/DE60231201D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0590988A2 (en) * | 1992-10-01 | 1994-04-06 | Sumitomo Seika Chemicals Co., Ltd. | Process for producing crosslinked polymer containing carboxyl group |
WO2000077093A1 (fr) * | 1999-06-15 | 2000-12-21 | Sumitomo Seika Chemicals Co., Ltd. | Composition polymere carboxylee |
Non-Patent Citations (1)
Title |
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See also references of EP1384734A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE60231201D1 (de) | 2009-04-02 |
JP2002302616A (ja) | 2002-10-18 |
KR20030090710A (ko) | 2003-11-28 |
US6933356B2 (en) | 2005-08-23 |
EP1384734A1 (en) | 2004-01-28 |
CN1500098A (zh) | 2004-05-26 |
EP1384734B1 (en) | 2009-02-18 |
CN1239536C (zh) | 2006-02-01 |
KR100824248B1 (ko) | 2008-04-24 |
EP1384734A4 (en) | 2004-06-09 |
JP4883844B2 (ja) | 2012-02-22 |
US20040106757A1 (en) | 2004-06-03 |
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