WO2007072769A1 - 熱発泡性マイクロスフェアー、並びにその製造方法と用途 - Google Patents
熱発泡性マイクロスフェアー、並びにその製造方法と用途 Download PDFInfo
- Publication number
- WO2007072769A1 WO2007072769A1 PCT/JP2006/325164 JP2006325164W WO2007072769A1 WO 2007072769 A1 WO2007072769 A1 WO 2007072769A1 JP 2006325164 W JP2006325164 W JP 2006325164W WO 2007072769 A1 WO2007072769 A1 WO 2007072769A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- foaming
- thermally foamable
- temperature
- monomer
- start temperature
- Prior art date
Links
Classifications
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
- C08J9/20—Making expandable particles by suspension polymerisation in the presence of the blowing agent
-
- 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
-
- 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
-
- 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
- C08F220/42—Nitriles
-
- 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
- C08F220/42—Nitriles
- C08F220/44—Acrylonitrile
- C08F220/46—Acrylonitrile with carboxylic acids, sulfonic acids or salts thereof
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
- C08J9/141—Hydrocarbons
-
- 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
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/16—Making expandable particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/14—Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
-
- 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
- C08J2333/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C08J2333/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/18—Homopolymers or copolymers of nitriles
- C08J2333/20—Homopolymers or copolymers of acrylonitrile
-
- 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
- C08J2333/00—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 only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
Definitions
- the present invention relates to a technique related to a thermally foamable microsphere. More specifically, the present invention relates to a thermally foamable microsphere having excellent heat resistance and a high foaming ratio and exhibiting a stable foaming behavior, and a method for producing the thermally foamable microsphere and a suitable application.
- Background art
- Heat-foamable microspheres also called heat-expandable microcapsules, are microcapsules made of a volatile foaming agent with an outer shell that also has polymer strength, and are generally used in aqueous dispersion media.
- an outer shell is formed so as to enclose the foaming agent.
- thermoplastic resin having a good gas barrier property is generally used.
- the polymer forming the outer shell is softened by heating.
- the blowing agent generally, a low boiling point compound such as hydrocarbon which becomes gaseous at a temperature below the softening point of the polymer forming the outer shell is used.
- Thermally foamable microspheres are used in a wide range of fields such as design-imparting agents, functionality-imparting agents, and light-weighting agents by utilizing the above-described properties of forming foam particles.
- polymer materials such as synthetic resins (thermoplastic resins and thermosetting resins), rubbers, paints and inks.
- the required level for thermal foaming microspheres will increase, and for example, improvement in processing characteristics such as heat resistance will be required.
- conventional thermal foamable microspheres generally have a narrow foaming start temperature range and start foaming at a relatively low temperature. Easy to foam. For this reason, the processing temperature had to be lowered, and the types of synthetic resin and rubber that could be applied were limited.
- the main monomer is acrylonitrile (I), a monomer containing a carboxyl group (11), A copolymer obtained by polymerizing a monomer (III) having a group that reacts with a carboxyl group of a monomer is used as an outer shell, and heat containing a liquid having a boiling point not higher than the softening temperature of the copolymer.
- Foaming microspheres have been proposed (Patent Document 1).
- the foam obtained by this method is characterized by having a glassy brittle outer shell. For this reason, since the foam is completely different from the one having elasticity, the properties of the resin may be lost when creating a porous body having a shape change.
- Patent Document 2 discloses that an outer shell resin of a thermally foamable microsphere is a nitrile monomer (1), and a single monomer having an unsaturated double bond and a carboxyl group in the molecule.
- this method can improve heat resistance, the use of a monomer having two or more polymerizable double bonds in the molecule makes the polymer have a crosslinked structure, so that the expansion ratio can be suppressed. End up.
- Patent Document 3 W099Z43758 publication.
- Patent Document 2 WO03Z099955.
- Patent Document 3 Japanese Patent Laid-Open No. 10-306169. Disclosure of the invention
- the present invention provides a heat-foaming microsphere having excellent heat resistance and a high foaming ratio and exhibiting a stable foaming behavior, a method for producing the heat-foamable microsphere, and a suitable application.
- the main purpose is to produce the heat-foamable microsphere.
- the outer shell is a copolymer capable of forming a polymethacrylimide structure, resulting in excellent heat resistance and foaming. It was found that a thermally foamable microsphere having a high magnification and showing a stable foaming behavior can be obtained.
- the present invention first provides a thermally foamable microsphere in which an outer shell enclosing a foaming agent can form a copolymer having a polymethacrylimide (abbreviated PMI) structure. That is, the thermally foamable microsphere according to the present invention comprises a foaming agent and an outer shell that encloses the foaming agent, and the outer shell has a configuration that can be formed of a copolymer having a polymethacrylimide structure.
- the monomer capable of forming the polymethacrylimide structure by a copolymerization reaction include methacrylonitrile and methacrylic acid.
- the thermally foamable microsphere according to the present invention has a b * value of 100 or less after heating at 240 ° C for 2 minutes, or the foaming start temperature and the maximum foaming by heat treatment below the foaming start temperature.
- the characteristic is that the temperature fluctuation value is within 7% of the foaming start temperature and the maximum foaming temperature before the heat treatment, respectively.
- a monomer mainly composed of a nitrile monomer and a monomer having a carboxyl group in an aqueous dispersion medium containing a dispersion stabilizer in the presence of a foaming agent a method for producing a thermally foamable microsphere in which the foaming agent is enclosed in an outer shell capable of forming a copolymer having a polymethacrylimide structure by suspension polymerization of a mixture comprising: .
- meta-tallow-tolyl can be used as the -tolyl-based monomer
- methacrylic acid can be used as the monomer having a carboxy group.
- the present invention provides the use of the above-mentioned thermally foamable microsphere as an additive.
- the heat-foamable microsphere according to the present invention has a characteristic that the foaming start temperature can be sufficiently increased, and therefore when heated to a high temperature when mixed with various synthetic resins, rubber, and binder resin. Undesirably early foaming can be effectively suppressed. Further, even after heating, a stable foaming behavior is maintained, the foaming ratio is high, and the amount of dripping is small, so that the amount of addition can be reduced and the calorie window can be widened.
- the invention's effect is a characteristic that the foaming start temperature can be sufficiently increased, and therefore when heated to a high temperature when mixed with various synthetic resins, rubber, and binder resin. Undesirably early foaming can be effectively suppressed. Further, even after heating, a stable foaming behavior is maintained, the foaming ratio is high, and the amount of dripping is small, so that the amount of addition can be reduced and the calorie
- the present invention it is possible to provide a thermally foamable microsphere having excellent heat resistance and a stable foaming behavior with a high foaming ratio. Further, according to the present invention, in addition to increasing the processing temperature before foaming, it is possible to provide a thermally foamable microsphere that does not lower the foaming start temperature even after heat treatment.
- thermoly foamable microsphere with little thermal yellowing during heating. Further, according to the present invention, agglomeration does not occur during polymerization, and a thermally foamable microsphere can be produced stably.
- the thermally foamable microsphere according to the present invention comprises a foaming agent and an outer shell that encloses the foaming agent, and the outer shell has a configuration capable of forming a copolymer having a polymethacrylimide structure. It is a feature.
- This “polymethacrylimide structure” can be obtained by cyclizing a nitrile group and a carboxyl group by heating or the like. Therefore, as a monomer for forming the outer shell, a nitrile monomer and a monomer having a carboxyl group are the main components.
- the "nitrile monomer” is mainly composed of meta-tali-tolyl, and if necessary, Nitril, oc-black acrylonitrile, a -ethoxyacrylonitrile, fumarol-tolyl, etc. may be used in combination.
- the "monomer having a carboxyl group” includes methacrylic acid as a main component, and acrylic acid, itaconic acid, crotonic acid, maleic acid, maleic anhydride, fumaric acid, citraconic acid and the like as necessary. You may use together.
- the molar ratio of Metatalix-tolyl and methacrylic acid is 1: 9 to 9: 1, more preferably 1: 5 to 5: 1, and still more preferably 1: 3 to 3: 1.
- vinyl monomers copolymerizable with these may be used. These are used to adjust the foaming properties of the outer shell polymer.
- the molar ratio of Metatali mouth-tolyl to methacrylic acid is less than 1: 9, the granulation property is reduced and the agglomeration occurs during the polymerization, whereas when the molar ratio is more than 9: 1, thermal yellowing is caused. Significantly lower heat resistance.
- Examples of the "bule monomer” include vinylidene chloride, butyl acetate, methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) acrylate, isobutyl (meth) acrylate, (Meta) acrylic acid esters such as t-butyl (meth) acrylate, isobornyl (meth) acrylate, cyclohexyl (meth) acrylate, benzyl (meth) acrylate, ⁇ -carboxyethyl acrylate Styrene, styrene sulfonic acid or its sodium salt, ⁇ -methyl styrene, styrene monomers such as chlorostyrene, etc., and the polymerization reaction proceeds with a radical initiator such as acrylamide, substituted acrylamide, methacrylamide, substituted methacrylamide. Isomers and mixtures thereof. These copo
- a polymethacrylimide structure is formed by cyclization of a nitrile group and a carboxyl group
- the polymerizable carbon-carbon double bond include a bur group, a methacryl group, an acryl group, and a aryl group. Two or more polymerizable carbon carbon double bonds may be the same or different from each other. Use a mixture of two or more different crosslinkable monomers.
- crosslinkable monomer examples include aromatic dibi-Louis compounds such as dibutenebenzene, dibutanaphthalene, and derivatives thereof; ethylene glycol diatalate, and ethylene glycol diatali.
- Diethylenically unsaturated carboxylic acid esters such as acrylate, ethylene glycolenoresimethacrylate, diethyleneglycolone dimetatalylate, polyethylenically unsaturated forces such as triethylene glycol diatalylate and triethylene glycol dimetatalylate, rubonic acid ester, 1, 4 butane Bifunctional cross-linkable monomers such as diols, aliphatic terminal alcohols such as 1,9-nonanediol, or talilate or metatalylate, N, N-dibulaline, divinyl ethers such as divinyl ether Can be mentioned.
- Diethylenically unsaturated carboxylic acid esters such as acrylate, ethylene glycolenoresimethacrylate, diethyleneglycolone dimetatalylate, polyethylenically unsaturated forces such as triethylene glycol diatalylate and triethylene glycol dimetatalylate, rubonic acid ester, 1, 4 butane Bifunctional
- crosslinkable monomers examples include tri- or more functional groups such as trimethylolpropane triacrylate, trimethylolpropane trimethacrylate, pentaerythritol tritalylate, pentaerythritol trimetatalylate, and triacryl formal. Mention may be made of polyfunctional crosslinkable monomers as well as triallyl cyanurate or triallyl isocyanurate.
- a suitable amount of the crosslinking agent is 0-0. A 4 mol 0/0, and more preferably 0-0. 3 mol%. When the amount exceeds 4 mol%, the expansion ratio is remarkably reduced.
- foaming agent included in the outer shell, methane, ethane, propane, n-butane, isobutane, n pentane, isopentane, nepentane, n-hexane, isohexane , N-heptane, isoheptane, n-octane, isooctane, n-nonane, isononane, n-decane, isodecane, n-dodecane, hydrocarbons such as isododecane, chlorofluorocarbons such as CC13F, and tetraalkylsilanes such as tetramethylsilane Etc. can be illustrated.
- foaming agents can be used alone or in combination of two or more depending on the purpose and application.
- a chemical foaming agent can also be used together.
- the ratio of the foaming agent encapsulated in the heat-foamable microsphere is usually 5 to 50% by weight, preferably 7 to 40% by weight, based on the total amount. Therefore, it is desirable to adjust the use ratio of the polymerizable monomer and the foaming agent so that the outer shell polymer and the foaming agent have the above ratio after the polymerization.
- the heat-foamable microsphere having the above structure is generally obtained by suspension polymerization of a polymerizable monomer in an aqueous dispersion medium containing a dispersion stabilizer in the presence of a foaming agent. Can be manufactured.
- a polymerizable monomer mixture containing at least a polymerizable monomer and a foaming agent is dispersed in an aqueous dispersion medium to form oil-based polymerizable monomer droplets. To do. This process may be referred to as a “granulation process”.
- the polymerizable monomer in the aqueous dispersion medium is stirred and mixed with a mixture of polymerizable monomers capable of forming a polymethacrylimide structure and the aqueous dispersion medium. Form droplets of the body mixture.
- the average particle size of the droplets is preferably approximately 1 to 500 ⁇ m, preferably 3 to 300 ⁇ m, particularly preferably approximately equal to the average particle size of the target thermally foamable microsphere. Preferably, it is 5 to 200 ⁇ m.
- an aqueous dispersion medium and a polymerizable monomer mixture are supplied into a continuous high-speed rotation high shear type stirring and dispersing machine, and the stirring and dispersing are performed. It is preferable to employ a method in which both are continuously stirred and dispersed in the machine, and then the obtained dispersion is poured into a polymerization tank and suspension polymerization is performed in the polymerization tank.
- the suspension polymerization causes the inside of the outer shell formed from the produced polymer to be contained.
- a thermally foamable microsphere having a structure in which a foaming agent is enclosed can be obtained.
- “Suspension polymerization” is generally performed by degassing the inside of the reaction vessel or replacing it with an inert gas and raising the temperature to 30 to: LO 0 ° C.
- the polymerization temperature may be controlled to a constant temperature, or the temperature may be increased in stages.
- the reaction mixture containing the thermally foamable microspheres produced is treated by a method such as filtration, centrifugation or sedimentation to separate the thermally foamable microspheres from the reaction mixture.
- the separated thermally foamable microspheres are recovered in the form of a wet cake after washing and filtering. If necessary, the surface of the thermally foamable microsphere can be coated with various materials.
- polymerization initiator for suspension polymerization, those generally used in this technical field can be adopted, but an oil-soluble polymerization initiator that is soluble in a polymerizable monomer is preferred.
- examples of such polymerization initiators include dialkyl peroxides, diacyl peroxide, and peroxides. Examples include esters, peroxydicarbonates, and azo compounds.
- polymerization initiator examples include dialkyl peroxides such as methylethyl peroxide, diethyl peroxide, and dicumyl peroxide; isobutyl peroxide, benzoyl peroxide, 2,4-dichloro Methyl benzoyl peroxide, diacyl peroxide such as 3,5,5-trimethylhexanoyl peroxide, t-butyl baroxypivalate, t-xyloxypivalate, t-butylperoxyneodecanoate, t-xylazol Xineodecanoate, 1-cyclohexyl 1-methylethylperoxyneodecanoate, 1,1,3,3-tetramethylbutylperoxyneodecanoto, tamilperoxyneodecanoto, bisneodecanolpa Peroxyesters such as (oxy) diisopropylbenzene, bis
- Diisopropylperoxydicarbonate di (2-ethylethylperoxy) dicarbonate, dimethoxybutyl butyl dioxycarbonate, di (3-methyl-3-methoxybutinoleperoxy) di Peroxydicarbonates such as carbonates; 2,2'-azobisisobuty-tolyl, 2,2'-azobis (4-methoxy) -1,2,4 dimethylvale-tolyl, 2,2azobis (2,4 dimethylvale) Mouth-tolyl), 1, -azobis (1-cyclohexanecarbo-tolyl) and the like.
- the polymerization initiator is usually contained in the polymerizable monomer mixture. If it is necessary to suppress early polymerization, a part or part of the polymerization initiator may be added during or after the granulation step. Add everything into the aqueous dispersion medium and transfer it into droplets of the polymerizable monomer mixture.
- the polymerization initiator is usually used in a proportion of 0.00013% by weight based on the polymerizable monomer.
- Suspension polymerization is generally performed in an aqueous dispersion medium containing a dispersion stabilizer.
- the dispersion stabilizer include inorganic fine particles such as silica and magnesium hydroxide.
- the auxiliary stabilizer for example, a condensation product of diethanolamine and an aliphatic dicarboxylic acid, polyvinylpyrrolidone, polyethylene oxide, various emulsifiers, and the like can be used.
- the dispersion stabilizer is usually used at a ratio of 0.1 to 20 parts by weight per 100 parts by weight of the polymerizable monomer.
- An aqueous dispersion medium containing a dispersion stabilizer is usually prepared by blending a dispersion stabilizer or an auxiliary stabilizer with deionized water.
- the pH of the aqueous phase at the time of polymerization is appropriately determined depending on the type of dispersion stabilizer and auxiliary stabilizer used.
- silica such as colloidal silica
- polymerization is performed in an acidic environment.
- an acid is added as necessary to adjust the pH of the reaction system to 6 or less, preferably about pH 3-4.
- a dispersion stabilizer that dissolves in an aqueous dispersion medium in an acidic environment such as magnesium hydroxide or calcium phosphate
- polymerization is performed in an alkaline environment.
- One preferred combination of dispersion stabilizers is a combination of colloidal silica and a condensation product.
- a condensation product of diethanolamine and an aliphatic dicarboxylic acid is preferred.
- a condensation product of diethanolamine and adipic acid or a condensation product of diethanolamine and itaconic acid is preferred.
- the acid value of the condensation product is preferably from 60 to less than 95, more preferably from 65 to 90.
- an inorganic salt such as sodium chloride or sodium sulfate
- a thermally foamable microsphere having a more uniform particle shape can be easily obtained.
- a food salt is preferably used as the inorganic salt.
- the amount of the colloidal silica used varies depending on the particle size. Usually, the amount is 0.5 to 20 parts by weight, preferably 1 to 15 parts by weight, based on 100 parts by weight of the polymerizable monomer. is there.
- the condensation product is usually used at a ratio of 0.05 to 2 parts by weight per 100 parts by weight of the polymerizable monomer.
- the inorganic salt is used in a ratio of 0 to L00 parts by weight with respect to 100 parts by weight of the polymerizable monomer.
- Another preferable combination of the dispersion stabilizer is a combination of colloidal silica and a water-soluble nitrogen-containing material.
- a combination of colloidal silica and polyvinylpyrrolidone is preferably used.
- another preferred combination is a combination of magnesium hydroxide and Z or calcium phosphate and an emulsifier.
- a colloid of hydroxide eg, magnesium hydroxide
- calcium phosphate a reaction product in an aqueous phase of sodium phosphate and calcium chloride can be used.
- Emulsifier is not generally used, but an anionic surfactant such as dialkyl sulfosuccinate or polyoxyethylene alkyl (aryl) ether phosphate may be used if desired.
- polymerization aid a small amount selected from the group consisting of alkali metal nitrite, stannous chloride, stannic chloride, water-soluble ascorbic acids, and potassium borate in an aqueous dispersion medium. Both types of compounds can be present.
- the polymerization particles do not aggregate during the polymerization, and the heat generated due to the polymerization that does not cause the polymer to adhere to the polymerization can wall is efficiently removed and stabilized. Thus, a thermally foamable microsphere can be produced.
- alkali metal nitrites sodium nitrite and potassium nitrite are preferable in terms of availability and price.
- ascorbic acids include ascorbic acid, metal salts of ascorbic acid, and esters of ascorbic acid.
- water-soluble ones are preferably used.
- the water-soluble alcorbic acid means one having a solubility in water at 23 ° C of lgZlOOcm3 or more.
- L-ascorbic acid (vitamin C), sodium ascorbate, and potassium ascorbate are particularly preferably used from the viewpoints of easy availability, cost, and effects.
- the above-mentioned polymerization assistant composed of these compounds is usually 0.001 to 1 part by weight, preferably 0.01 to 0.5 part by weight, based on 100 parts by weight of the polymerizable monomer. Used in.
- the order in which the above components are added to the aqueous dispersion medium is arbitrary.
- the dispersion stabilizer is added by adding water and a dispersion stabilizer, and if necessary, a stabilizer or a polymerization assistant.
- An aqueous dispersion medium containing is prepared.
- the foaming agent, the polymerizable monomer (vinyl monomer) and the crosslinkable monomer are separately added to the aqueous dispersion medium and integrated in the aqueous dispersion medium to form a polymerizable monomer mixture (A oily mixture) may be formed, but usually these are mixed in advance and then added to the aqueous dispersion medium.
- the polymerization initiator can be used by adding to the polymerizable monomer in advance.
- a polymerizable monomer mixture is dispersed in water.
- the polymerization initiator may be added to the medium while stirring, and may be integrated in the aqueous dispersion medium.
- the polymerizable monomer mixture and the aqueous dispersion medium are mixed in a separate container, stirred and mixed with a stirrer or disperser having high shearing force, and then charged into the polymerization can.
- the thermally foamable microsphere obtained by the above production method has a structure in which a foaming agent is enclosed in an outer shell formed of a polymer, and the outer shell has a polymethacrylimide structure.
- This polymethacrylimide structure can be obtained by cyclizing a nitrile group and a carboxyl group by heating or the like.
- the softening temperature of the outer shell resin can be adjusted by changing the ratio of Metatari-tolyl and methacrylic acid. If you want to lower the softening temperature, increase the ratio of metal mouth-tolyl, and if you want to increase the softening temperature, increase the ratio of methacrylic acid. By changing the softening temperature of the outer shell resin, it is possible to arbitrarily set the foaming start temperature.
- the foaming start temperature As a method of adjusting the foaming start temperature, it is also effective to change the type of foaming agent. By increasing the ratio of the high-boiling foaming agent, the foaming start temperature can be increased. In the case of the outer shell resin of conventional heat-foamable microspheres, the foaming start temperature decreased when heated at a temperature slightly lower than the foaming start temperature, but the outer surface of the heat-foamable microsphere according to the present invention was reduced. Shell koji has the feature that stable foaming behavior is exhibited without a decrease in foaming start temperature.
- the fluctuation values of the foaming start temperature and the maximum foaming temperature by the heat treatment below the foaming start temperature are within 7% of the foaming start temperature and the maximum foaming temperature before the heat treatment, respectively. Further, the variation value is preferably within 5%, more preferably within 3%.
- the use of the thermally foamable microsphere according to the present invention is not limited to a narrow range, and is used as an additive in various fields by being heated and foamed (expanded) or left unfoamed. For example, it can be used for applications such as paint fillers for automobiles, wallpaper and foaming inks (relief patterns such as T-shirts), and anti-shrinkage agents by utilizing its expansibility. In particular, automobile interior parts contribute to the light weight of tires.
- the thermally foamable microsphere according to the present invention utilizes a volume increase due to foaming, polymer materials such as synthetic resin (thermoplastic resin, thermosetting resin) and rubber, paint, It is used as an additive for the purpose of imparting various functionalities (eg, slipping properties, heat insulation properties, cushioning properties, sound insulation properties, etc.) such as light weight and porous materials such as seed materials.
- polymer materials such as synthetic resin (thermoplastic resin, thermosetting resin) and rubber, paint
- various functionalities eg, slipping properties, heat insulation properties, cushioning properties, sound insulation properties, etc.
- the polymer material include polyethylene, polypropylene, polystyrene, ABS resin, SBS, SIS, hydrogenated SIS, natural rubber, various synthetic rubbers, and thermoplastic polyurethane.
- the thermally foamable microsphere according to the present invention can be suitably used in the paint, wallpaper, and ink fields that require surface properties and smoothness. Since the thermally foamable microsphere of the present invention is excellent in processability, it can be suitably used in application fields that require processing steps such as kneading, calendering, extrusion force, and injection molding. .
- the thermally foamable microsphere according to the present invention can be used as a foaming agent, mixed with a polymer material to form a composition, or is thermally foamed without being foamed. It can also be melted and mixed with resin to form pellets. Sarako is blended with polymer materials, paints, inks, etc., and is heated and foamed to contain foam particles (for example, foam molded products, Foamed coating film, foamed ink).
- foam particles for example, foam molded products, Foamed coating film, foamed ink.
- TMA measurement was performed using TMA-7 model manufactured by Perkin Elma. Using about 0.25 mg of sample, the temperature was raised at a rate of temperature rise of 5 ° CZ, and the foaming behavior was observed. More specifically, a sample (thermal foaming microsphere) was placed in a container, the temperature was raised at a rate of temperature rise of 5 ° CZ, and the displacement of the height was continuously measured. Changes in sample height in the container The temperature at which the peak began was defined as the foaming start temperature (Tstart), and the temperature at which the height reached the maximum was defined as the maximum foaming temperature (Tmax).
- Tstart foaming start temperature
- Tmax maximum foaming temperature
- the b * value of the coating film for which the expansion ratio (coating method) was measured was measured.
- This b * value is the b * value in the L * a * b * color system. The larger this value, the stronger yellow.
- Microsphere 0.5g + silicone oil 2.5g is weighed in an aluminum cup, mixed well, then heated and foamed in a set temperature oven, taken out into a 50ml volumetric flask and diluted with isopropanol. The true specific gravity of the foamed thermofoaming microsphere was determined from the sample weight and the weight after measuring up.
- methacrylic acid also indicated by MAA
- blowing agent isooctane 60g blowing agent isooctane 60g
- polymerization opening A polymerizable mixture was prepared by mixing 2 g of initiator 2, 2′-azobisisobutyl-tolyl (also indicated as V-60).
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 1 is 1: 1 (see Table 1).
- the aqueous dispersion medium prepared above and the polymerizable mixture were stirred and mixed with a homogenizer to form fine droplets of the polymerizable monomer mixture in the aqueous dispersion medium.
- An aqueous dispersion medium containing minute droplets of this polymerizable mixture is charged into a polymerization can equipped with a stirrer (1.5 L) and heated in a hot water bath at 60 ° C for 15 hours and further at 70 ° C for 9 hours. And reacted.
- the slurry containing the thermally foamable microspheres produced was filtered and washed with water and dried to obtain a thermally foamable microsphere having an average particle size of 40 m (see Table 1).
- Example 2 Suspension polymerization was carried out in the same manner as in Example 1 except that 110 g of Metatari mouth-tolyl and 90 g of methacrylic acid were used to obtain thermally foamable microspheres having an average particle size of 39 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 2 is 1.6: 1.
- the foaming start temperature was 186 ° C
- the maximum foaming temperature was 214 ° C
- the difference was 28 ° C. there were.
- the expansion ratio was 8.4 times at 230 ° C
- the b * value was 26.8.
- Example 3 Suspension polymerization was carried out in the same manner as in Example 1 except that 132 g of Metatari mouth-tolyl and 68 g of methacrylic acid were used to obtain thermally foamable microspheres having an average particle size of 41 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 3 is 2.5: 1.
- the foaming start temperature was 171 ° C
- the maximum foaming temperature was 255 ° C
- the difference was 84 ° C. there were.
- the expansion ratio was 10.5 times at 220 ° C
- the b * value was 27.1.
- Example 4 Suspension polymerization was carried out in the same manner as in Example 1 except that 154 g of Metatari mouth-tolyl and 46 g of methacrylic acid were used to obtain thermally foamable microspheres having an average particle size of 50 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 4 is 4.3: 1.
- the foaming start temperature was 180 ° C
- the maximum foaming temperature was 260 ° C
- the difference was 80 ° C. C.
- the expansion ratio was 8.6 times at 220 ° C
- the b * value was 35.4.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 1 except that 60 g of isooctane was changed to 60 g of isopentane to obtain a thermally foamable microsphere having an average particle size of 40 m.
- the foaming start temperature was 185 ° C
- the maximum foaming temperature was 240 ° C
- the difference was 55 ° C. there were.
- the expansion ratio was 4.5 times at 230 ° C
- the b * value was 25.0.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 2 except that 60 g of isooctane was changed to 60 g of isopentane to obtain a thermally foamable microsphere having an average particle size of 49 m.
- the foaming start temperature was 170 ° C
- the maximum foaming temperature was 240 ° C
- the difference was 70 ° C. there were.
- the expansion ratio was 9.1 times at 220 ° C
- the b * value was 27.0.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 3 except that 60 g of isooctane was changed to 60 g of isopentane to obtain a thermally foamable microsphere having an average particle size of 47 m.
- the foaming start temperature was 155 ° C
- the maximum foaming temperature was 220 ° C
- the difference was 65 ° C. there were.
- the expansion ratio was 19.2 times at 210 ° C
- the b * value was 27.5.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 4 except that 60 g of isooctane was changed to 60 g of isopentane to obtain a thermally foamable microsphere having an average particle size of 50 m.
- the foaming start temperature was 130 ° C
- the maximum foaming temperature was 210 ° C
- the difference was 80 ° C. there were.
- the expansion ratio was 17.3 times at 200 ° C
- the b * value was 36.0.
- the foaming start temperature was 251 ° C
- the maximum foaming temperature was 279 ° C
- the difference was 28 ° C. there were.
- the expansion ratio was 1.5 times at 230 ° C
- the b * value was 28.0.
- Example 2 Suspended in the same manner as in Example 1 except that 88 g of metatalilonitrile and 112 g of methacrylic acid were replaced with 4 g of metatalilonitrile 130 g, methacrylic acid 66 g and methyl acrylate (indicated by MA in the table). Polymerization was performed to obtain thermally foamable microspheres having an average particle size of 34 m.
- the foaming start temperature was 171 ° C
- the maximum foaming temperature was 245 ° C
- the difference was 74 ° C. there were.
- the expansion ratio was 10.0 times at 220 ° C
- the b * value was 27.0.
- Suspension polymerization was carried out in the same manner as in Example 10 except that 60 g of isooctane was changed from 60 g of isooctane to 60 g of isopentane to obtain thermally foamable microspheres having an average particle size of 50 ⁇ m.
- the foaming start temperature was 150 ° C
- the maximum foaming temperature was 220 ° C
- the difference was 70 ° C. there were.
- the expansion ratio was 19.1 times at 210 ° C
- the b * value was 26.9.
- the foaming start temperature was 171 ° C
- the maximum foaming temperature was 250 ° C or higher
- the difference was 79 ° C. That was all.
- the expansion ratio was 10.2 times at 220 ° C
- the b * value was 27.0.
- (B) Preparation of polymerizable mixture Mix 175g of metataric mouth-tolyl (MAN), which is a polymerization monomer, 25g of metaacrylic acid (MAA), 60g of foaming agent isooctane, and 2g of polymerization initiator 2, 2'-azobisisobutyl-tolyl (V-60). A polymerizable mixture was prepared. The molar ratio of methacrylo-tolyl and methacrylic acid in Example 13 is 9: 1.
- Example 14 Suspension polymerization was carried out in the same manner as in Example 13 except that 129 g of Metatari mouth-tolyl and 71 g of methacrylic acid were used to obtain thermally foamable microspheres having an average particle size of 27 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 14 is 2.3: 1.
- Example 15 Suspension polymerization was carried out in the same manner as in Example 13 except that 108 g of Metatari mouth-tolyl and 92 g of methacrylic acid were used to obtain thermally foamable microspheres having an average particle size of 26 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 15 is 1.5: 1.
- the foaming start temperature was 189 ° C
- the maximum foaming temperature was 266 ° C
- the difference was 77 ° C. there were.
- the expansion ratio was 17.6 times at 230 ° C
- the b * value was 27.0.
- the thermally expanded particle density is 230. 0. 0046, 240 in C. 0. 0045, 250 in C. C was 0.0000 (see Table 2).
- Example 16 Suspension polymerization was carried out in the same manner as in Example 13 except that the weight was changed to 88 g of Metatari mouth-tolyl and 112 g of methacrylic acid to obtain a thermally foamable microsphere having an average particle size of 31 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 16 is 1: 1.
- the foaming start temperature was 199 ° C
- the maximum foaming temperature was 263 ° C
- the difference was 64 ° C. there were.
- the foaming start temperature and the maximum foaming temperature were hardly changed.
- the expansion ratio was 14.5 times at 230 ° C
- the b * value was 24.0.
- Figure 1 shows the change in foaming degree (foaming behavior) between the foaming start temperature and the maximum foaming temperature during TMA measurement.
- About 0.25 mg of sample was placed in a container, the temperature was increased at a rate of temperature increase of 5 ° CZ, and the displacement at the height was continuously measured. The height at each temperature is shown as 1 at the maximum foaming temperature (Tmax).
- the thermally foamable microspheres obtained in Example 16 hardly changed to the foaming start temperature and the maximum foaming temperature after heating for 10 minutes at 180 ° C without heating. Not only is there no wrinkle, but it is also possible to maintain a stable foaming property with no change in the foaming behavior between the foaming start temperature and the maximum foaming temperature.
- the polymerization initiator was changed from 2, 2'-azobisisopetityl-tolyl 2g to lauryl peroxide ( Suspension polymerization was carried out in the same manner as in Example 16 except that the isopentane was changed to 60 g (shown as LPO in the table) to obtain thermally foamable microspheres having an average particle size of 30 m.
- the foaming start temperature was 200 ° C
- the maximum foaming temperature was 250 ° C
- the difference was 50 ° C. there were.
- the expansion ratio was 7.1 times at 230 ° C
- the b * value was 23.0.
- Suspension polymerization was carried out in the same manner as in Example 17 except for changing to Metatalix-tolyl 68 g and methacrylic acid 132 g to obtain thermally foamable microspheres having an average particle size of 28 m.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 18 is 0.7: 1.
- the foaming start temperature was 207 ° C
- the maximum foaming temperature was 232 ° C
- the difference was 25 ° C. there were.
- the expansion ratio was 4.1 times at 230 ° C
- the b * value was 23.0.
- the foaming start temperature was 213 ° C
- the maximum foaming temperature was 218 ° C
- the difference was 5 ° C. there were.
- the expansion ratio was 6.7 times at 230 ° C.
- trimethylolpropane trimetatalylate was blended in the same manner as in Example 15 above, and an average particle size of 26 ⁇ m was obtained. m thermally foamable microspheres were obtained.
- the mixing ratio of trimethylolpropane trimethacrylate tributary rate of the polymerizable monomer mixture of the present embodiment 20 is a 0.02 mol 0/0.
- Example 21 In addition to 108 g of metatalonitrile and 92 g of methacrylic acid, 0.6 g of trimethylolpropane trimetatalylate was added, and suspension polymerization was performed in the same manner as in Example 15 to obtain an average particle size of 29 ⁇ m. m thermally foamable microspheres were obtained.
- the mixing ratio of trimethylolpropane trimethacrylate tributary rate of the polymerizable monomer mixture of the present Example 21 is 0.07 mol 0/0.
- the foaming start temperature was 187 ° C
- the maximum foaming temperature was 223 ° C
- the difference was 36 ° C. there were.
- the expansion ratio was 11.3 times at 230 ° C.
- trimethylolpropane trimetatalylate was suspension-polymerized in the same manner as in Example 15 except that 1. Og was added, and the average particle size was 31 ⁇ m. m thermally foamable microspheres were obtained.
- the mixing ratio of trimethylolpropane trimethacrylate tributary rate of the polymerizable monomer mixture of the present embodiment 22 is a 0.11 mol 0/0.
- the foaming start temperature was 185 ° C
- the maximum foaming temperature was 220 ° C
- the difference was 35 ° C. there were.
- the expansion ratio was 8.0 times at 230 ° C.
- a suspension polymerization was performed in the same manner as in Example 15 except that 98 g of metatalilonitrile and 92 g of methacrylic acid were mixed with 1 Og of methyl acrylate (indicated by MA in the table). A heat-foamable microsphere was obtained.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 23 is 1.4: 1, and the blending ratio of methyl acrylate is 5% by weight.
- the foaming start temperature was 189 ° C
- the maximum foaming temperature was 259 ° C
- the difference was 70 ° C.
- the expansion ratio was 13.4 at 230 ° C.
- a suspension polymerization was performed in the same manner as in Example 15 except that 98 g of metatalilonitrile and 92 g of methacrylic acid were added, and 10 g of methyl methacrylate (indicated by MMA in the table) was blended. A heat-foamable microsphere was obtained.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 24 is 1.4: 1, and the blending ratio of methyl methacrylate is 5% by weight.
- the foaming start temperature was 185 ° C
- the maximum foaming temperature was 242 ° C
- the difference was 57 ° C. there were.
- the expansion ratio was 14.2 times at 230 ° C.
- Thermally foamable microspheres having an average particle size of 27 m were subjected to suspension polymerization in the same manner as in Example 15 except that 88 g of metatalonitrile and 92 g of methacrylic acid were added and 20 g of methyl methacrylate was blended.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 25 is 1.2: 1, and the blending ratio of methyl methacrylate is 10% by weight.
- the foaming start temperature was 186 ° C
- the maximum foaming temperature was 235 ° C
- the difference was 49 ° C. there were.
- the expansion ratio was 13.3 times at 230 ° C.
- Metathali mouth-tolyl 104 g, methacrylic acid 92 g, and 4 g of dimethylaminoethyl methacrylate (shown as DMAEMA in the table) were added, and suspension polymerization was performed in the same manner as in Example 15 above, and the average particle size was A 24 m thermally foamable microsphere was obtained.
- the molar ratio of methacrylo-tolyl and methacrylic acid in Example 26 is 1.5: 1, and the blending ratio of dimethylaminoethyl methacrylate is 2% by weight.
- the foaming start temperature was 190 ° C
- the maximum foaming temperature was 251 ° C
- the difference was 61 ° C. there were.
- the expansion ratio was 11.4 times at 230 ° C.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 15 except that 60 g of isooctane was changed to 60 g of isododecane to obtain thermally foamable microspheres having an average particle size of 26 ⁇ m (Table 2). reference).
- Suspension polymerization was performed in the same manner as in Example 15 except that 60 g of isooctane was changed from 60 g of isooctane to 60 g of isopentane to obtain a thermally foamable microsphere having an average particle size of 31 ⁇ m.
- the foaming start temperature was 168 ° C
- the maximum foaming temperature was 234 ° C
- the difference was 66 ° C. there were.
- the expansion ratio was 14.4 times at 230 ° C.
- Thermally expanded particle density is 0.0116, 230 at 220 ° C. 0. 0072, 240 in C. The C was 0.0061.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 15 except that 60 g of isooctane was changed to 40 g of isobutane to obtain a thermally foamable microsphere having an average particle size of 27 m.
- the foaming start temperature was 159 ° C
- the maximum foaming temperature was 228 ° C
- the difference was 69 ° C. there were.
- the expansion ratio was 9.8 times at 230 ° C.
- Thermally expanded particle density is 0.0108, 230 at 220 ° C. 0. 0104, 240 in C. The C was 0.00146.
- Suspension polymerization was carried out in the same manner as in Example 15 except that 60 g of isooctane was changed from 60 g of isooctane to 20 g of isobutane and 40 g of isododecane to obtain a thermally foamable microsphere having an average particle size of 26 m.
- the foaming start temperature was 175 ° C
- the maximum foaming temperature was 240 ° C
- the difference was 65 ° C. there were.
- the expansion ratio was 10.3 times at 230 ° C.
- the thermally foamed particle density is 0.0017, 240 at 230 ° C. C. 0.0108, 250.
- the C was 0.00120.
- Example 31 Suspension polymerization was carried out in the same manner as in Example 15 except that 60 g of isooctane was changed from 10 g of isooctane to 10 g of isobutane and 50 g of isododecane to obtain a thermally foamable microsphere having an average particle size of 26 m.
- the foaming start temperature was 198 ° C
- the maximum foaming temperature was 260 ° C
- the difference was 62 ° C. there were.
- the expansion ratio was 8.7 times at 230 ° C.
- Thermally expanded particle density is 0.0123, 240 at 230 ° C. 0. 0113, 250 in C. The C was 0.00119.
- the foaming agent was subjected to suspension polymerization in the same manner as in Example 15 except that 60 g of isooctane was changed to 5 g of isobutane and 55 g of isododecane to obtain a thermally foamable microsphere having an average particle size of 25 m.
- the foaming start temperature was 200 ° C
- the maximum foaming temperature was 277 ° C
- the difference was 77 ° C. there were.
- the expansion ratio was 5.8 times at 230 ° C.
- Thermally expanded particle density is 0.0221, 240 at 230 ° C. 0.0 in C, 250, 250.
- the C was 0.00140.
- suspension polymerization was performed in the same manner as in Example 15 to obtain a thermally foamable microsphere having an average particle size of 25 m. .
- the foaming start temperature was 193 ° C
- the maximum foaming temperature was 237 ° C
- the difference was 44 ° C. there were.
- the expansion ratio was 11.8 times at 230 ° C.
- Thermally expanded particle density is 0.0080, 240 at 230 ° C. The C was 0.0088.
- suspension polymerization was performed in the same manner as in Example 15 to obtain a thermally foamable microsphere having an average particle size of 24 m. .
- Suspension polymerization was carried out in the same manner as in Example 15 except that the foaming agent was changed from 60 g of isooctane to 40 g of isooctane to obtain thermally foamable microspheres having an average particle size of 25 ⁇ m.
- the foaming start temperature was 188 ° C
- the maximum foaming temperature was 256 ° C
- the difference was 68 ° C. there were.
- the expansion ratio was 8.6 times at 230 ° C.
- Thermally expanded particle density is 0.0125, 240 at 230 ° C. 0. 0116, 250 in C. The C was 0.00124.
- Suspension polymerization was carried out in the same manner as in Example 15 except that the foaming agent was changed from 60 g of isooctane to 80 g of isooctane to obtain thermally foamable microspheres having an average particle size of 27 ⁇ m.
- the foaming start temperature was 187 ° C
- the maximum foaming temperature was 260 ° C
- the difference was 73 ° C. there were.
- the expansion ratio was 12.4 at 230 ° C.
- Thermally expanded particle density is 0.0075, 240 at 230 ° C. C. 0.0069, 250. The C was 0.0065.
- the foaming start temperature was 187 ° C
- the maximum foaming temperature was 260 ° C
- the difference was 73 ° C. there were.
- the expansion ratio was 12.8 times at 230 ° C.
- Thermally foamed particle density is 0.20072, 240 at 230 ° C. C. 0.0061, 250. The C was 0.0065.
- the foaming start temperature was 176 ° C
- the maximum foaming temperature was 231 ° C
- the difference was 55 ° C. there were.
- the expansion ratio was 11.0 times at 230 ° C.
- Thermally expanded particle density is 0.0106, 220 at 210 ° C. C. 0. 0089, 230.
- the C was 0.0094.
- the foaming start temperature was 175 ° C
- the maximum foaming temperature was 235 ° C
- the difference was 60 ° C. there were.
- the expansion ratio was 14.2 times at 220 ° C.
- Thermally foamed particle density is 0.0013, 220 at 210 ° C. 0. 0062, 230 in C. The C was 0.0065.
- the foaming start temperature was 172 ° C
- the maximum foaming temperature was 241 ° C
- the difference was 69 ° C. there were.
- the expansion ratio was 16.0 times at 210 ° C.
- Thermally foamed particle density is 0.00083, 220 at 210 ° C. C. 0. 0054, 230. The C was 0.0052.
- the foaming start temperature was 168 ° C
- the maximum foaming temperature was 247 ° C
- the difference was 79 ° C. there were.
- the expansion ratio was 18.2 times at 210 ° C.
- Thermally foamed particle density is 0.00083, 220 at 210 ° C. 0. 0044, 230 in C. The C was 0.0047.
- suspension polymerization was carried out in the same manner as in Example 15 except that 65 g of 20% by weight colloidal silica was changed to 50 g and the rotational speed of the emulsifier was 8,500 r / m.
- a thermally foamable microsphere with a diameter of 39 m was obtained (see Table 3).
- the foaming start temperature was 185 ° C
- the maximum foaming temperature was 266 ° C
- the difference was 81 ° C. there were.
- the expansion ratio was 11.3 times at 230 ° C.
- the thermally foamed particle density was 0.00085 at 210 ° C. and 0.00085 at 23013 C (see Table 3).
- aqueous dispersion medium 65g of 20% by weight colloidal silica was replaced with 40g, Suspension polymerization was carried out in the same manner as in Example 15 except that the rotational speed of the emulsifier was 7,500 r / m, to obtain thermally foamable microspheres having an average particle size of 58 ⁇ m.
- suspension polymerization was carried out in the same manner as in Example 15 except that 65 g of 20% by weight colloidal silica was changed to 20 g and the rotational speed of the emulsifier was changed to 5,500 r / m. A 118 ⁇ m thermally foamable microsphere was obtained.
- This Comparative Example 1 is a test for confirming the effect of using a large amount of acrylonitrile.
- Suspension polymerization was carried out in the same manner as in Example 1 except that 88 g of Metatari mouth-tolyl and 112 g of methacrylic acid were replaced with 45.4 g of acrylonitrile, 45.4 g of methacrylonitrile, and 109.2 g of methacrylic acid.
- the polymer became agglomerated during polymerization, and it was impossible to obtain normal heat-foamable microspheres (see Table 4).
- METATALI-TO-Trill 88 g and METAKUZINORE 112 g were added to AC! J P- ⁇ !; Nore 66.6 g, METAKU! J P- ⁇ !; Nore 66.
- Suspension polymerization was carried out in the same manner as in Example 1, except that 6 g and metacudinoleic acid were changed to 66.6 g. As a result, the polymer was agglomerated during the polymerization, and normal heat-foamable microspheres could not be obtained.
- Suspension polymerization was carried out in the same manner as in Example 1 except that 88 g of Metatari mouth-tolyl and 112 g of methacrylic acid were replaced with 200 g of methacrylic acid. As a result, the polymer agglomerated during the polymerization.
- Suspension polymerization was carried out in the same manner as in Example 1 except that 88 g of metatalilonitrile and 112 g of methacrylic acid were replaced with 200 g of metathalonitrile, whereby a microsphere having a particle size of 47 m was obtained. As a result, the foam was strong.
- the b * value was 200.
- This Comparative Example 8 is a test for confirming the influence on the foaming behavior.
- Metatalix mouth-tolyl 88 g, Methacrylic acid 112 g is acrylonitrile 67 g
- Metatali mouth-tolyl 31 g, Methacrylic acid 2 g Diethylene glycol dimethatalylate (denoted by DEGDMA in the table) 1.5 g
- foaming agent Suspension polymerization was carried out in the same manner as in Example 1 except that lg, isooctane 13 g, and isododecane 16 g were used to obtain thermally foamable microspheres having an average particle size of 49 m.
- the addition amount of the crosslinkable monomer to the polymerizable monomer is 0.35% monole.
- the foaming start temperature was 204 ° C
- the maximum foaming temperature was 209 ° C
- the difference was 5 ° C. there were.
- the foaming start temperature changed to 135 ° C
- the maximum foaming temperature changed to 194 ° C.
- the expansion ratio was 8.3 times at 190 ° C.
- Figure 2 shows the change in foaming degree (foaming behavior) between the foaming start temperature and the maximum foaming temperature during TMA measurement.
- the thermally foamable microspheres obtained in this Comparative Example 8 had both the foaming start temperature and the maximum foaming temperature decreased after unheated and heated at 170 ° C for 2 minutes. It can be seen that the foaming behavior between and has changed greatly! (See also Fig. 1).
- Example 1 22 ° C
- Example 2 28 ° C
- Example 3 84 ° C
- Example 4 80 ° C
- Example 5 55 ° C
- Example 6 70 ° C
- Example 7 65 ° C
- Example 8 80 ° C
- Example 9 28 ° C
- Example 10 0: 74 ° C
- Example 11 70 ° C. From this, it is clear that the thermally foamable microsphere according to the present invention is excellent in heat resistance.
- each example of the thermally foamable microsphere according to the present invention has a high foaming ratio. Power! As shown in Examples 1 and 16, after the heat treatment, the foaming start temperature did not decrease, and the foaming behavior was not changed and stable foamability was maintained (Tables 1 and 2). And Figure 1).
- thermally foamable microsphere according to the present invention had less thermal yellowing during heating. In each Example, no aggregation occurred during the polymerization, and a thermally foamable microsphere could be stably produced.
- Comparative Examples 1 and 2 which are monomer mixture systems in which acrylonitrile is added to methacryl-tolyl and methacrylic acid, the polymer becomes bulky in the middle of the polymerization, and normal heat-foaming My Helped with no cross sphere (see Table 4).
- Comparative Example 7 where ethylene glycol dimetatalylate, which is a crosslinkable monomer, was added, the foaming ratio was drastically decreased at 220 ° C with a difference between the foaming start temperature and the maximum foaming temperature (see Table 4). ).
- Comparative Example 8 after unheated and after heating at 170 ° C for 2 minutes, the foaming start temperature significantly decreased and the foaming behavior changed significantly (see Table 4 and Fig. 2).
- the present invention can be used as a technique for producing a heat-foamable microsphere having excellent heat resistance and a high foaming ratio.
- the thermally foamable microsphere according to the present invention can be used as an additive such as a filler for paints for automobiles, a foaming agent for wallpaper or foamed ink, an anti-shrinkage agent, etc.
- Increased volume by foaming gives various functionalities such as polymer resin such as synthetic resin (thermoplastic resin, thermosetting resin) and rubber, paint, various materials such as porous materials. It can be used as an additive for the purpose.
- automobile interior parts can contribute to the light weight of tires.
- FIG. 1 is a view showing a change in foaming degree (foaming behavior) between a foaming start temperature and a maximum foaming temperature of a thermally foamable microsphere according to Example 16.
- FIG. 2 is a graph showing a change in foaming degree (foaming behavior) between the foaming start temperature and the maximum foaming temperature of the thermally foamable microsphere according to Comparative Example 8.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
- Manufacturing Of Micro-Capsules (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200680047764XA CN101341227B (zh) | 2005-12-19 | 2006-12-18 | 热发泡性微球及其制造方法和用途 |
EP06842850.7A EP1964903B1 (en) | 2005-12-19 | 2006-12-18 | Heat-expandable microspheres, process for production of the same and uses thereof |
JP2007551073A JP5484673B2 (ja) | 2005-12-19 | 2006-12-18 | 熱発泡性マイクロスフェアー、並びにその製造方法と用途 |
KR1020087013687A KR101488024B1 (ko) | 2005-12-19 | 2006-12-18 | 열발포성 마이크로스페어, 그리고 그 제조 방법과 용도 |
KR1020147003802A KR101533203B1 (ko) | 2005-12-19 | 2006-12-18 | 열발포성 마이크로스페어, 그리고 그 제조 방법과 용도 |
US12/086,627 US8759410B2 (en) | 2005-12-19 | 2006-12-18 | Thermally foamable microsphere, method of producing the same, and use thereof |
US14/273,356 US9605125B2 (en) | 2005-12-19 | 2014-05-08 | Thermally foamable microsphere, method of producing the same, and use thereof |
US15/435,846 US10093782B2 (en) | 2005-12-19 | 2017-02-17 | Thermally foamable microsphere, method of producing the same, and use thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005364784 | 2005-12-19 | ||
JP2005-364784 | 2005-12-19 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/086,627 A-371-Of-International US8759410B2 (en) | 2005-12-19 | 2006-12-18 | Thermally foamable microsphere, method of producing the same, and use thereof |
US14/273,356 Continuation US9605125B2 (en) | 2005-12-19 | 2014-05-08 | Thermally foamable microsphere, method of producing the same, and use thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007072769A1 true WO2007072769A1 (ja) | 2007-06-28 |
Family
ID=38188547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/325164 WO2007072769A1 (ja) | 2005-12-19 | 2006-12-18 | 熱発泡性マイクロスフェアー、並びにその製造方法と用途 |
Country Status (6)
Country | Link |
---|---|
US (3) | US8759410B2 (ja) |
EP (1) | EP1964903B1 (ja) |
JP (2) | JP5484673B2 (ja) |
KR (2) | KR101533203B1 (ja) |
CN (1) | CN101341227B (ja) |
WO (1) | WO2007072769A1 (ja) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009050863A1 (ja) * | 2007-10-16 | 2009-04-23 | Matsumoto Yushi-Seiyaku Co., Ltd. | 熱膨張性微小球、その製造方法および用途 |
JP2009120660A (ja) * | 2007-11-13 | 2009-06-04 | Sekisui Chem Co Ltd | 熱膨張性マイクロカプセル及び発泡成形体 |
JP2009161698A (ja) * | 2008-01-09 | 2009-07-23 | Sekisui Chem Co Ltd | 熱膨張性マイクロカプセル及び発泡成形体 |
JP2009203451A (ja) * | 2008-02-01 | 2009-09-10 | Sekisui Chem Co Ltd | 発泡成形用マスターバッチ及び発泡成形体 |
JP2010264707A (ja) * | 2009-05-18 | 2010-11-25 | Nittetsu Corrosion Prevention Co Ltd | 断熱発泡ポリオレフィン被覆鋼管 |
WO2010143512A1 (ja) | 2009-06-09 | 2010-12-16 | 松本油脂製薬株式会社 | 熱膨張性微小球、その製造方法および用途 |
WO2011122227A1 (ja) | 2010-03-31 | 2011-10-06 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル及び熱膨張性マイクロカプセルの製造方法 |
WO2011122229A1 (ja) | 2010-03-31 | 2011-10-06 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル、熱膨張性マイクロカプセルの製造方法、発泡性マスターバッチ及び発泡成形体 |
JP2012136695A (ja) * | 2010-12-03 | 2012-07-19 | Matsumoto Yushi Seiyaku Co Ltd | 熱膨張性微小球およびその用途 |
CN102775550A (zh) * | 2012-07-12 | 2012-11-14 | 西能化工科技(上海)有限公司 | 一种中高温热膨胀性微球及减少其中残余单体的方法 |
JP2015129290A (ja) * | 2010-11-19 | 2015-07-16 | 松本油脂製薬株式会社 | 熱膨張性微小球およびその用途 |
US9102805B2 (en) | 2008-09-30 | 2015-08-11 | Sekisui Chemical Co., Ltd. | Masterbatch for foam molding and molded foam |
US9109096B2 (en) | 2008-11-07 | 2015-08-18 | Sekisui Chemical Co., Ltd. | Thermally expandable microcapsule and foam-molded article |
JP2017113654A (ja) * | 2015-12-21 | 2017-06-29 | 株式会社クレハ | マイクロスフェアー、これを含む熱発泡性樹脂組成物、構造部材、および成形体 |
JP2017185448A (ja) * | 2016-04-05 | 2017-10-12 | 株式会社クレハ | マイクロスフェアー、熱発泡性樹脂組成物、並びに発泡成形体及びその製造方法 |
WO2017195438A1 (ja) * | 2016-05-11 | 2017-11-16 | 株式会社クレハ | 発泡成形体の製造方法 |
US10093783B2 (en) | 2014-11-26 | 2018-10-09 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres and application thereof |
US10093782B2 (en) | 2005-12-19 | 2018-10-09 | Kureha Corporation | Thermally foamable microsphere, method of producing the same, and use thereof |
CN110698721A (zh) * | 2019-10-15 | 2020-01-17 | 江苏科技大学 | 一种聚甲基丙烯酰亚胺热膨胀微球及其制备方法 |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010072663A1 (en) | 2008-12-22 | 2010-07-01 | Akzo Nobel N.V. | Microspheres |
CN101857656B (zh) * | 2010-05-24 | 2011-08-31 | 四川大学 | 用于生产聚甲基丙烯酰亚胺泡沫材料的可发性颗粒及应用 |
JP5943591B2 (ja) * | 2010-12-08 | 2016-07-05 | 松本油脂製薬株式会社 | 断熱管およびその製造方法 |
CN102225983B (zh) * | 2011-05-03 | 2013-04-24 | 浙江理工大学 | 一种含有酰亚胺基的聚合物泡沫材料及其制备方法 |
JP6043427B2 (ja) * | 2012-05-30 | 2016-12-14 | アクゾ ノーベル ケミカルズ インターナショナル ベスローテン フエンノートシャップAkzo Nobel Chemicals International B.V. | 微小球体 |
EP2671716A1 (en) | 2012-06-08 | 2013-12-11 | Hexcel Composites SASU | Low density composite materials, their production and use |
EP2892702B1 (en) | 2012-09-07 | 2016-08-31 | Akzo Nobel Chemicals International B.V. | A method and a device for preparation of expanded thermoplastic microspheres |
CN103421206B (zh) * | 2013-07-24 | 2016-02-17 | 江苏科技大学 | 一种丙烯腈/甲基丙烯酸共聚物泡沫塑料的制备方法 |
US10023712B2 (en) | 2014-05-23 | 2018-07-17 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres, process for producing the same and application thereof |
GB201420055D0 (en) | 2014-11-11 | 2014-12-24 | Technion Res & Dev Foundation | Low density micropsheres |
US20180258248A1 (en) * | 2014-12-02 | 2018-09-13 | Kureha Corporation | Large-diameter heat-expanding microspheres and method for producing same |
US10214624B2 (en) | 2014-12-11 | 2019-02-26 | Akzo Nobel Chemicals International B.V. | Apparatus and method for expanding thermally expandable thermoplastic microspheres to expanded thermoplastic microspheres |
JP5967252B1 (ja) * | 2015-04-13 | 2016-08-10 | 横浜ゴム株式会社 | タイヤトレッド用ゴム組成物およびスタッドレスタイヤ |
WO2017002659A1 (ja) * | 2015-06-29 | 2017-01-05 | 松本油脂製薬株式会社 | 熱膨張性微小球の製造方法及びその利用 |
SG11201700924QA (en) * | 2016-02-02 | 2017-09-28 | Imh Equipment Pte Ltd | A manufacturing process for heat and radiant resistant coating |
US11504922B2 (en) | 2016-03-23 | 2022-11-22 | Donkervoort Automobielen B.V. | Multi-layered composite structures and methods for the preparation thereof |
GB2558971A (en) | 2016-12-16 | 2018-07-25 | Formformform Ltd | Silicone elastomer composition |
CN107556515A (zh) * | 2017-08-17 | 2018-01-09 | 成都新柯力化工科技有限公司 | 一种用于聚苯乙烯发泡塑料的阻燃型发泡剂及其制备方法 |
CN107739492A (zh) * | 2017-09-26 | 2018-02-27 | 西能化工科技(上海)有限公司 | 轻质减震实心轮胎及其制备方法 |
JP7377213B2 (ja) | 2018-04-05 | 2023-11-09 | ヌーリオン ケミカルズ インターナショナル ベスローテン フェノーツハップ | 膨張したマイクロスフェアの調製のための装置 |
CN112055725B (zh) | 2018-04-27 | 2022-12-27 | 株式会社钟化 | 母料、聚碳酸酯系树脂组合物、注塑发泡成形体及其制造方法 |
EP3628710A1 (en) | 2018-09-26 | 2020-04-01 | Holland Novochem Technical Coatings B.V. | Coating composition |
CN110317288A (zh) * | 2019-05-21 | 2019-10-11 | 湖南兆恒材料科技有限公司 | 一种聚甲基丙烯酰亚胺泡沫及其制备方法 |
CN110606976B (zh) * | 2019-10-15 | 2022-02-18 | 江苏科技大学 | 一种聚甲基丙烯酰亚胺泡沫材料的制备方法 |
CN112852004B (zh) * | 2019-11-28 | 2022-03-29 | 浙江海虹控股集团有限公司 | 一种包裹二氧化碳的热膨胀微球及其制备方法 |
EP4112698A4 (en) * | 2020-02-28 | 2024-01-24 | Matsumoto Yushi-Seiyaku Co., Ltd. | THERMO-EXPANDABLE MICROSPHERES, THEIR PRODUCTION METHOD AND THEIR USE |
CN113549241A (zh) * | 2020-04-23 | 2021-10-26 | 南京工业大学 | 一种聚合物发泡微球及其制备方法 |
CN112661901A (zh) * | 2020-12-23 | 2021-04-16 | 西能化工科技(上海)有限公司 | 热膨胀微球制备方法和热膨胀微球 |
CN112795050B (zh) * | 2020-12-31 | 2023-06-30 | 运研材料科技(上海)有限公司 | 一种具有低起发膨胀温度的热膨胀微球、其制备方法及应用 |
KR102575627B1 (ko) * | 2021-05-28 | 2023-09-06 | 한남대학교 산학협력단 | 코어-쉘 구조를 갖는 기능성 팽창제 |
CN113861492A (zh) * | 2021-09-29 | 2021-12-31 | 崔宾 | 可膨胀微球的制备方法 |
FR3134107A1 (fr) | 2022-03-30 | 2023-10-06 | Saint-Gobain Glass France | Composition adhésive pour article verrier comprenant des moyens d’expansion et vitrage feuilleté pour automobile comprenant une telle composition |
FR3135413A1 (fr) | 2022-05-13 | 2023-11-17 | Saint-Gobain Glass France | Miroir pouvant être facilement enlevé d’un support sur lequel il est collé |
CN115433302A (zh) * | 2022-10-08 | 2022-12-06 | 成都雷隐科技有限公司 | 一种改性gmi材料的制备方法 |
WO2024170766A1 (en) | 2023-02-17 | 2024-08-22 | Nouryon Chemicals International B.V. | A package material and a method for making such material |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS543875A (en) * | 1977-06-10 | 1979-01-12 | Roehm Gmbh | Polyacrylimido foam or polymethacrylimido foam* its manufacture and laminate made therefrom |
JPS62286534A (ja) * | 1986-06-04 | 1987-12-12 | Matsumoto Yushi Seiyaku Kk | 熱膨張性マイクロカプセルの製造法 |
JPH10306169A (ja) * | 1997-04-25 | 1998-11-17 | Roehm Gmbh | ポリメタクリルイミドフォーム物質の製造法、該フォーム物質、該フォーム物質の使用法並びに該フォーム物質から形成された核を有するプレプレッグ |
JP2002012693A (ja) * | 2000-04-28 | 2002-01-15 | Kureha Chem Ind Co Ltd | 熱発泡性マイクロスフェアー及びその製造方法 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1594202A (en) | 1925-12-23 | 1926-07-27 | Eugene J Jalbert | Oil burner |
US5310807A (en) * | 1992-12-30 | 1994-05-10 | E. I. Du Pont De Nemours And Company | Star polymers made from macromonomers made by cobalt chain transfer process |
DE4416877A1 (de) * | 1994-05-13 | 1995-11-16 | Basf Ag | Wasserlöslich oder wasserdispergierbare Pfropfpolymerisate von Proteinen als Ledergerbstoffe |
JP4460768B2 (ja) * | 1998-02-24 | 2010-05-12 | 松本油脂製薬株式会社 | 熱膨張性マイクロカプセルとその製造方法及びその利用方法 |
WO1999046320A1 (fr) * | 1998-03-13 | 1999-09-16 | Matsumoto Yushi-Seiyaku Co., Ltd. | Microcapsules thermo-expansibles et leur procede d'utilisation |
US7252882B2 (en) | 2000-04-28 | 2007-08-07 | Kureha Corporation | Thermally foamable microsphere and production process thereof |
CN1200987C (zh) * | 2000-04-28 | 2005-05-11 | 吴羽化学工业株式会社 | 热发泡性微球及其制造方法 |
JP5044074B2 (ja) * | 2001-06-11 | 2012-10-10 | 株式会社クレハ | 熱発泡性マイクロスフェアー及びその製造方法 |
WO2003099955A1 (fr) * | 2002-05-24 | 2003-12-04 | Matsumoto Yushi-Seiyaku Co., Ltd. | Microcapsule se dilatant sous l'effet de la chaleur et son utilisation |
EP1577359B1 (en) * | 2002-12-25 | 2011-02-16 | Matsumoto Yushi-Seiyaku Co., Ltd. | Thermally expandable microcapsule, process for producing molded foam, and molded foam |
JP2005313397A (ja) | 2004-04-28 | 2005-11-10 | Mitsui Chemicals Inc | 複合材及び多層プリント配線板 |
JP5204369B2 (ja) * | 2004-05-19 | 2013-06-05 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル及び熱膨張性マイクロカプセルの製造方法 |
JP5204368B2 (ja) * | 2004-05-19 | 2013-06-05 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル及び熱膨張性マイクロカプセルの製造方法 |
JP2005343967A (ja) | 2004-06-01 | 2005-12-15 | Sekisui Chem Co Ltd | 独立気泡成形体用樹脂組成物及び独立気泡成形体 |
JP5150042B2 (ja) * | 2004-07-02 | 2013-02-20 | 積水化学工業株式会社 | 独立気泡成形体用樹脂組成物及び独立気泡成形体 |
JP5280606B2 (ja) * | 2005-04-01 | 2013-09-04 | 積水化学工業株式会社 | 独立気泡成形体用樹脂組成物及び独立気泡成形体 |
KR101331818B1 (ko) | 2005-10-20 | 2013-11-22 | 마쓰모토유시세이야쿠 가부시키가이샤 | 열팽창성 미소구 및 그 제조방법 |
JP5145048B2 (ja) | 2005-10-27 | 2013-02-13 | 株式会社ブリヂストン | タイヤ用熱膨張性微小球およびタイヤ用中空微粒子とそれらの製造方法並びにタイヤとリムとの組立体 |
KR101533203B1 (ko) | 2005-12-19 | 2015-07-02 | 가부시끼가이샤 구레하 | 열발포성 마이크로스페어, 그리고 그 제조 방법과 용도 |
-
2006
- 2006-12-18 KR KR1020147003802A patent/KR101533203B1/ko active IP Right Grant
- 2006-12-18 CN CN200680047764XA patent/CN101341227B/zh active Active
- 2006-12-18 KR KR1020087013687A patent/KR101488024B1/ko not_active IP Right Cessation
- 2006-12-18 US US12/086,627 patent/US8759410B2/en active Active
- 2006-12-18 EP EP06842850.7A patent/EP1964903B1/en active Active
- 2006-12-18 JP JP2007551073A patent/JP5484673B2/ja active Active
- 2006-12-18 WO PCT/JP2006/325164 patent/WO2007072769A1/ja active Application Filing
-
2013
- 2013-11-29 JP JP2013246989A patent/JP2014080616A/ja active Pending
-
2014
- 2014-05-08 US US14/273,356 patent/US9605125B2/en active Active
-
2017
- 2017-02-17 US US15/435,846 patent/US10093782B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS543875A (en) * | 1977-06-10 | 1979-01-12 | Roehm Gmbh | Polyacrylimido foam or polymethacrylimido foam* its manufacture and laminate made therefrom |
JPS62286534A (ja) * | 1986-06-04 | 1987-12-12 | Matsumoto Yushi Seiyaku Kk | 熱膨張性マイクロカプセルの製造法 |
JPH10306169A (ja) * | 1997-04-25 | 1998-11-17 | Roehm Gmbh | ポリメタクリルイミドフォーム物質の製造法、該フォーム物質、該フォーム物質の使用法並びに該フォーム物質から形成された核を有するプレプレッグ |
JP2002012693A (ja) * | 2000-04-28 | 2002-01-15 | Kureha Chem Ind Co Ltd | 熱発泡性マイクロスフェアー及びその製造方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1964903A1 * |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10093782B2 (en) | 2005-12-19 | 2018-10-09 | Kureha Corporation | Thermally foamable microsphere, method of producing the same, and use thereof |
CN101827911B (zh) * | 2007-10-16 | 2013-03-27 | 松本油脂制药株式会社 | 热膨胀性微球,其制备方法及其应用 |
US8247465B2 (en) | 2007-10-16 | 2012-08-21 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres, process for producing the same, and application thereof |
WO2009050863A1 (ja) * | 2007-10-16 | 2009-04-23 | Matsumoto Yushi-Seiyaku Co., Ltd. | 熱膨張性微小球、その製造方法および用途 |
JP2009120660A (ja) * | 2007-11-13 | 2009-06-04 | Sekisui Chem Co Ltd | 熱膨張性マイクロカプセル及び発泡成形体 |
JP2009161698A (ja) * | 2008-01-09 | 2009-07-23 | Sekisui Chem Co Ltd | 熱膨張性マイクロカプセル及び発泡成形体 |
JP2009203451A (ja) * | 2008-02-01 | 2009-09-10 | Sekisui Chem Co Ltd | 発泡成形用マスターバッチ及び発泡成形体 |
US9102805B2 (en) | 2008-09-30 | 2015-08-11 | Sekisui Chemical Co., Ltd. | Masterbatch for foam molding and molded foam |
US9109096B2 (en) | 2008-11-07 | 2015-08-18 | Sekisui Chemical Co., Ltd. | Thermally expandable microcapsule and foam-molded article |
JP2010264707A (ja) * | 2009-05-18 | 2010-11-25 | Nittetsu Corrosion Prevention Co Ltd | 断熱発泡ポリオレフィン被覆鋼管 |
WO2010143512A1 (ja) | 2009-06-09 | 2010-12-16 | 松本油脂製薬株式会社 | 熱膨張性微小球、その製造方法および用途 |
EP2529830A2 (en) | 2009-06-09 | 2012-12-05 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres and a method of making heat-expandable microspheres and application thereof |
US9126178B2 (en) | 2009-06-09 | 2015-09-08 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres and a method of making heat-expandable microspheres and application thereof |
US9776157B2 (en) | 2010-03-31 | 2017-10-03 | Sekisui Chemical Co., Ltd. | Thermally expandable microcapsule, method for producing thermally expandable microcapsule, foamable masterbatch, and foam molded article |
WO2011122229A1 (ja) | 2010-03-31 | 2011-10-06 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル、熱膨張性マイクロカプセルの製造方法、発泡性マスターバッチ及び発泡成形体 |
WO2011122227A1 (ja) | 2010-03-31 | 2011-10-06 | 積水化学工業株式会社 | 熱膨張性マイクロカプセル及び熱膨張性マイクロカプセルの製造方法 |
JP2015129290A (ja) * | 2010-11-19 | 2015-07-16 | 松本油脂製薬株式会社 | 熱膨張性微小球およびその用途 |
JP2012136695A (ja) * | 2010-12-03 | 2012-07-19 | Matsumoto Yushi Seiyaku Co Ltd | 熱膨張性微小球およびその用途 |
CN102775550B (zh) * | 2012-07-12 | 2014-09-10 | 西能化工科技(上海)有限公司 | 一种中高温热膨胀性微球及减少其中残余单体的方法 |
CN102775550A (zh) * | 2012-07-12 | 2012-11-14 | 西能化工科技(上海)有限公司 | 一种中高温热膨胀性微球及减少其中残余单体的方法 |
US10093783B2 (en) | 2014-11-26 | 2018-10-09 | Matsumoto Yushi-Seiyaku Co., Ltd. | Heat-expandable microspheres and application thereof |
JP2017113654A (ja) * | 2015-12-21 | 2017-06-29 | 株式会社クレハ | マイクロスフェアー、これを含む熱発泡性樹脂組成物、構造部材、および成形体 |
WO2017110201A1 (ja) * | 2015-12-21 | 2017-06-29 | 株式会社クレハ | マイクロスフェアー、当該マイクロスフェアーを含む熱発泡性樹脂組成物、構造部材、および成形体、ならびに当該構造部材および当該成形体の製造方法 |
JP2017185448A (ja) * | 2016-04-05 | 2017-10-12 | 株式会社クレハ | マイクロスフェアー、熱発泡性樹脂組成物、並びに発泡成形体及びその製造方法 |
WO2017175519A1 (ja) * | 2016-04-05 | 2017-10-12 | 株式会社クレハ | マイクロスフェアー、熱発泡性樹脂組成物、並びに発泡成形体及びその製造方法 |
CN108884376A (zh) * | 2016-04-05 | 2018-11-23 | 株式会社吴羽 | 微球体、热发泡性树脂组合物、以及发泡成型体及其制造方法 |
CN108884376B (zh) * | 2016-04-05 | 2021-04-02 | 株式会社吴羽 | 微球体、热发泡性树脂组合物、以及发泡成型体及其制造方法 |
WO2017195438A1 (ja) * | 2016-05-11 | 2017-11-16 | 株式会社クレハ | 発泡成形体の製造方法 |
CN110698721A (zh) * | 2019-10-15 | 2020-01-17 | 江苏科技大学 | 一种聚甲基丙烯酰亚胺热膨胀微球及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1964903A4 (en) | 2012-06-13 |
US9605125B2 (en) | 2017-03-28 |
EP1964903B1 (en) | 2017-03-22 |
US20140243438A1 (en) | 2014-08-28 |
JP2014080616A (ja) | 2014-05-08 |
KR101488024B1 (ko) | 2015-01-29 |
US20090292031A1 (en) | 2009-11-26 |
US8759410B2 (en) | 2014-06-24 |
US10093782B2 (en) | 2018-10-09 |
CN101341227A (zh) | 2009-01-07 |
US20170158835A1 (en) | 2017-06-08 |
CN101341227B (zh) | 2012-05-30 |
KR20140025615A (ko) | 2014-03-04 |
KR20080084938A (ko) | 2008-09-22 |
EP1964903A1 (en) | 2008-09-03 |
JP5484673B2 (ja) | 2014-05-07 |
JPWO2007072769A1 (ja) | 2009-05-28 |
KR101533203B1 (ko) | 2015-07-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2007072769A1 (ja) | 熱発泡性マイクロスフェアー、並びにその製造方法と用途 | |
JP4945243B2 (ja) | 熱発泡性マイクロスフェアー、その製造方法、その使用、それを含む組成物、及び物品 | |
JP4320356B2 (ja) | 熱膨張性微小球、その製造方法および用途 | |
EP2204428B1 (en) | Heat-expandable microspheres, process for producing the same, and application thereof | |
EP1408097B2 (en) | Heat-expandable microsphere and process for producing the same | |
EP1288272B2 (en) | Heat-expandable microsphere and production process thereof | |
JP3670980B2 (ja) | 熱発泡性マイクロスフェアー及びその製造方法 | |
JP5534576B2 (ja) | 熱膨張性マイクロスフェアー及びその製造方法、添加剤並びに成形体 | |
WO1999037706A1 (fr) | Microspheres expansibles et leur procede de production | |
JP4903924B2 (ja) | 発泡性マイクロスフェアー及びその製造方法 | |
JP5131948B2 (ja) | 熱膨張性マイクロカプセルの製造方法 | |
JP6276423B2 (ja) | 熱発泡性マイクロスフェアー、並びにそれを含む組成物及び成形体 | |
JP2004323854A (ja) | 熱膨張性マイクロカプセル及びその製造方法 | |
JP4945079B2 (ja) | 熱発泡性マイクロスフェアー及びその製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200680047764.X Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2007551073 Country of ref document: JP Kind code of ref document: A |
|
REEP | Request for entry into the european phase |
Ref document number: 2006842850 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2006842850 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12086627 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020147003802 Country of ref document: KR |