WO2016171398A1 - 내수성 및 내화학성이 향상된 수분산성 폴리에스테르 수지, 이를 포함하는 수분산 에멀젼, 및 이의 제조방법 - Google Patents
내수성 및 내화학성이 향상된 수분산성 폴리에스테르 수지, 이를 포함하는 수분산 에멀젼, 및 이의 제조방법 Download PDFInfo
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- WO2016171398A1 WO2016171398A1 PCT/KR2016/002889 KR2016002889W WO2016171398A1 WO 2016171398 A1 WO2016171398 A1 WO 2016171398A1 KR 2016002889 W KR2016002889 W KR 2016002889W WO 2016171398 A1 WO2016171398 A1 WO 2016171398A1
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- polyester resin
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- glycol
- emulsion
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
- C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6886—Dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/07—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from polymer solutions
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
Definitions
- the present invention relates to a water dispersible polyester resin having improved water resistance and chemical resistance, a water dispersion emulsion containing the same, and a method of preparing the same.
- the water-dispersible resin has similar water resistance, weather resistance, and excellent chemical resistance to the resin using the organic solvent on the film formed from the resin.
- Japanese Laid-Open Patent Publication No. 2007-177026 discloses a method of producing an aqueous dispersion by neutralizing 0.1 to 1.5 equivalents of amines as a neutralizing agent with respect to the amount of carboxyl groups of a polyester resin, and simultaneously mixing an organic solvent and water. Is starting.
- the method may cause odor in the operator's process environment due to the use of amines, there is a problem that the stability of the water-dispersible polyester resin is reduced as the amines are volatilized.
- Japanese Patent Laid-Open No. 2001-73007 discloses polymerizing a polyester containing 0.1 to 1.5 mmol equivalent of sulfonic acid metal base, and then adding 10% or less by weight of anionic surfactant based on the total weight of the aqueous dispersion.
- a method for producing an aqueous dispersion having an average particle diameter of 0.1 to 10 mu m in water is disclosed.
- the anionic surfactant acts as a factor to lower the long-term water resistance and adhesion of the coating film affects the durability of the coating film.
- Japanese Patent No. 3,040,532 uses more than 80 molar equivalents of terephthalic acid as the acid component and more than 85 molar equivalents of hexamethylene glycol as the glycol component.
- a method for producing a polyester water dispersion to produce a film since the polyester resin of the above structure causes three-dimensional interference when forming the particles of the emulsion, it is difficult to produce stable particles of 650 nm or less.
- Korean Patent Laid-Open Publication No. 2009-0073561 discloses copolymerization of a polyester having a dicarboxylic acid content containing sulfonic acid metal base of 5 to 15 molar equivalents based on the total acid component, followed by water solubility.
- a method for preparing an aqueous dispersion by dispersing in water containing an organic solvent contains a large amount of sulfonic acid metal base, when the solid content is increased during the coating operation using the finally obtained aqueous dispersion, the viscosity is rapidly increased to decrease the efficiency of the worker and the solid content is increased. If it is lower than 30% by weight, the final film properties and long-term hydrolysis resistance is low, there is a disadvantage that the water resistance is poor.
- a correlation between the particle size of the polyester water-dispersible emulsion and the ratio of the aqueous medium and the organic solvent is derived, and this is expressed by a formula in a predictable range.
- Another object of the present invention is to provide a water-dispersible emulsion comprising the water-dispersible polyester resin and exhibiting excellent adhesion and water resistance of a coating film suitable for coating and adhesive binder applications, and a method for producing the same.
- a polyester resin having (i) an acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to the acid component, and (ii) a glycol component comprising a linear glycol as a repeating unit.
- a water dispersible polyester resin is provided, wherein the resin contains at least 20% by weight of a linear glycol component based on the total weight of the resin.
- the present invention provides, as a repeating unit, (i) an acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to the acid component, and (ii) linear A polyester resin having a glycol component comprising a glycol, wherein the resin comprises a water dispersible polyester resin containing at least 20% by weight of a linear glycol component based on the total weight of the resin, and the average particle of the water dispersible polyester resin A water dispersion emulsion is provided, having a diameter of 100 to 650 nm.
- an acid component comprising (i) an aromatic dicarboxylic acid having from 1 to 3 mol% of sulfonic acid metal base groups relative to the acid component, in an organic solvent of less than 100 ° C., and (ii) linear A polyester resin having a glycol component comprising glycol, the resin comprising: dissolving a water dispersible polyester resin containing at least 20% by weight of a linear glycol component based on the total weight of the resin;
- step (b) adding water to the melt obtained in step (a) and then stirring to self-emulsion;
- step (c) reducing the self-emulsion obtained in step (b) and then removing the organic solvent to provide an aqueous dispersion emulsion.
- the present invention while minimizing the use of organic solvents added to the water-dispersible polyester resin to reduce human hazards, it does not cause odor by excluding the use of amines.
- it is possible to prepare an aqueous emulsion having excellent coating and adhesive properties and water dispersion stability without using an emulsifier such as a surfactant.
- the present invention provides a repeating unit comprising (i) an acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to an acid component, and (ii) a glycol component comprising a linear glycol.
- a polyester resin is provided, wherein the resin contains at least 20% by weight of linear glycol components based on the total weight of the resin.
- the water-dispersible polyester resin according to the present invention comprises the steps of esterifying an acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to an acid component and a glycol component comprising a linear glycol. And polycondensation.
- the acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to the acid component, and the glycol component comprising a linear glycol are 220 to 300 ° C., specifically 220 to 270 ° C.
- the esterification reaction under pressure conditions of 0.1 to 3.0 kgf / cm2, specifically 0.2 to 2.0 kgf / cm2;
- the reactant may be prepared through the step of polycondensation reaction to remove the by-product glycol in 240 to 300 °C, specifically 250 to 280 °C, and reduced pressure conditions of 0.1 mmHg or less.
- Acid components of the present invention include aromatic dicarboxylic acids having sulfonic acid metal base groups.
- the aromatic dicarboxylic acid having a sulfonic acid metal base group may be included in an amount of 1 to 3 mol% based on the total acid component, and imparts water dispersibility to the polyester resin by including an aromatic dicarboxylic acid having a sulfonic acid metal base group. Make self-emulsification possible.
- the content of the sulfonic acid metal base is 1 mol% or more based on the total acid component, it is possible to prepare an aqueous dispersion emulsion having a stable particle size of 650 nm or less and exhibiting stable water dispersion characteristics.
- the hydrolysis resistance of the water-dispersible emulsion is not lowered.
- the aromatic dicarboxylic acid having the sulfonic acid metal base group may be selected from the group consisting of 5-sodium sulfodimethyl isophthalic acid, 5-sodium isophthalic acid, and combinations thereof, and specifically, 5-sodium sulfodimethyl isophthalic acid may be used. .
- the aromatic dicarboxylic acid having the sulfonic acid metal base group is 0.1 to 4 wt%, 0.1 to 3.5 wt%, 0.3 to 3.5 wt%, 0.5 to 4 wt%, 1.5 to 4 wt% based on the total weight of the water dispersible polyester resin. % Or 2 to 3% by weight.
- the acid component of the present invention may include an aromatic dicarboxylic acid component selected from the group consisting of terephthalic acid, isophthalic acid, phthalic acid, oxophthalic acid and combinations thereof. Specifically, it may include terephthalic acid, isophthalic acid or a combination thereof.
- the aromatic dicarboxylic acid may be included in 30 to 65% by weight, 40 to 60% by weight or 45 to 55% by weight based on the total weight of the resin.
- the acid component of the present invention further includes linear dicarboxylic acid selected from the group consisting of adipic acid, azelaic acid, sebacic acid, fumaric acid and combinations thereof. can do. Specifically, it may further include adipic acid, sebacic acid, or a combination thereof.
- the linear dicarboxylic acid may be included in 0 to 50% by weight, or 0 to 40% by weight based on the total weight of the water dispersible polyester resin.
- the glycol component includes a linear glycol component.
- the linear glycol component may be selected from the group consisting of ethylene glycol, monopropylene glycol, diethylene glycol, dipropylene glycol, neopentyl glycol, 1,6-hexanediol, methylpentyl glycol and combinations thereof. Specifically, it may be ethylene glycol, neopentyl glycol, diethylene glycol, 1,6-hexanediol, or a combination thereof.
- the water-dispersible polyester resin according to the present invention may include a linear glycol component in an amount of 20 wt% or more, specifically 20 to 60 wt%, more specifically 25 to 58 wt%, based on the total weight of the resin.
- the fluidity of the polyester molecules is smoothed in the process of self-emulsification to improve fluidity, and the activity of the hydrophilic portion serving as a surfactant by reducing the content of aromatic and cycloaliphatic relatively
- This smooth and final particle size of the aqueous dispersion emulsion can be produced to a target of 650 nm or less. And this can improve the long term stability of the water emulsion.
- the glycol component of the present invention may further include an alicyclic glycol component.
- the alicyclic glycol component may be selected from the group consisting of 1,4-cyclohexane dimethanol (CHDM), tricyclodecane dimethanol, and combinations thereof.
- the alicyclic glycol may be included in 0 to 40% by weight, 0 to 30% by weight, or 0 to 25% by weight based on the total weight of the water-dispersible polyester resin.
- the intrinsic viscosity of the water dispersible polyester resin according to the present invention may be 0.3 to 1.0 dl / g, specifically 0.4 to 0.8 dl / g. If the intrinsic viscosity of the water-dispersible polyester resin is 0.3 dl / g or more, the resin containing the sulfonic acid metal base for forming the emulsion particles is relatively increased in amount, and the content of the resin having hydrophobic characteristics decreases, so that the water-dispersible poly The particle size of the ester can be small.
- the present invention provides a repeating unit comprising (i) an acid component comprising an aromatic dicarboxylic acid having 1 to 3 mol% of sulfonic acid metal base groups relative to an acid component, and (ii) a glycol component comprising a linear glycol.
- a polyester resin wherein the resin comprises a water dispersible polyester resin containing 20% by weight or more of a linear glycol component based on the total weight of the resin, and the average particle diameter of the water dispersible polyester resin is 100 to 650 nm.
- the aqueous dispersion emulsion according to the present invention may have an average particle diameter of 650 nm or less, specifically 100 to 650 nm, more specifically 100 to 400 nm. If the average particle diameter in the water dispersion emulsion is 650 nm or less, the polyester particles do not settle or cause aggregation, which is preferable in terms of long-term stability.
- the aqueous dispersion emulsions according to the invention may have a solids content of at least 20% by weight, at least 40% by weight, 20 to 60% by weight or 40 to 60% by weight. If the water-dispersible polyester resin contained in the water-dispersion emulsion is 20 to 60% by weight, for example, it is excellent in the physical properties of the film formed using the water-dispersion emulsion and can be usefully used as a coating and an adhesive.
- the aqueous dispersion emulsion according to the present invention may have a relative viscosity of 500 to 2,000 cps (centipoise), specifically 900 to 1,600 cps.
- the average particle diameter of the polyester resin in the water-dispersible emulsion according to the present invention can be predicted through the intrinsic viscosity of the water-dispersible polyester resin, the amount of the sulfonic acid metal base monomer, and the content ratio of water and organic solvent used for preparing the emulsion. Which has a content relationship as in the following formula:
- Y is the average particle diameter (nm) of the polyester resin in the water dispersion emulsion
- X is the content ratio of water and organic solvent
- a and k each independently represent a constant.
- a and k each independently represent a constant.
- the constant a shows a curve that increases 10 times.
- X means a content ratio (water / organic solvent) of water and the organic solvent, it may be 0.45 to 4.0.
- the size of the stable particles may be determined after the time of self-emulsification. Specifically, in the preparation of the water-dispersion emulsion, the apparent viscosity is increased and entangled in the stirring rod by adding water having a relatively high polarity to the organic solvent in which the water-dispersible polyester resin, which is an initial continuous phase, is dissolved. Can be observed. It can be seen that the organic solvent and the added water gradually change phase in appearance due to polarity and turn to milky white in appearance. As water is added, the continuous phase turns into an organic solvent and water, and the disperse phase is phase inversion to polyester. When the phase is reversed, when the amount of water added is 10 to 20% by weight with respect to the organic solvent, the stable behavior of the particles may be different according to the amount of water added thereafter, and the final particle size may be determined.
- the aqueous dispersion emulsion according to the present invention may further include an additive selected from the group consisting of a curing agent, thickener, antifoaming agent, leveling agent, stabilizer and combinations thereof as necessary.
- the water-dispersion emulsion of the present invention further comprises a curing agent
- a crosslinked structure may be formed to prepare a water-dispersion emulsion having superior coating film properties.
- the water-containing emulsion contains a curing agent and a thickener together, it is possible to give a suitable viscosity to the water-dispersion emulsion to increase the convenience and wetting on the substrate can be more excellent (wetting).
- curing agent can mix and use 1 type (s) or 2 or more types of hardening
- the curing agent may be used isocyanate compound, melamine resin, phenol resin and the like.
- the isocyanate compound is excellent in reactivity with the water dispersible polyester resin.
- the present invention provides a method for preparing an aqueous dispersion emulsion as described above.
- the production method comprises: (a) an acid component comprising an aromatic dicarboxylic acid having from 1 to 3 mol% of sulfonic acid metal base groups relative to the acid component as (i) an organic solvent of less than 100 ° C., and (ii) a polyester resin having a glycol component comprising linear glycol, the resin dissolving a water dispersible polyester resin containing at least 20% by weight of a linear glycol component based on the total weight of the resin; (b) adding water to the melt obtained in step (a) and then stirring to self-emulsify; And (c) reducing the self-emulsion obtained in step (b) and then removing the organic solvent to prepare an aqueous dispersion emulsion.
- Step (a) is a repeating unit comprising: (i) an acid component comprising an aromatic dicarboxylic acid having from 1 to 3 mole percent sulfonic acid metalbase groups relative to the acid component, and (ii) a glycol component A polyester resin having a resin, wherein the resin dissolves a water-dispersible polyester resin containing 20% by weight or more of a linear glycol component based on the total weight of the resin in an organic solvent of less than 100 ° C.
- the water dispersible polyester resin may be prepared according to the same method as mentioned above.
- the organic solvent is water-soluble, and can be fractionated according to the boiling point in step (c), and an organic solvent capable of dissolving 20 wt% or more, specifically 20 to 70 wt% of a water-dispersible polyester resin containing a sulfonic acid metal base. Can be selected.
- Such an organic solvent may be a ketone organic solvent selected from the group consisting of acetone, methyl ethyl ketone, ethyl isobutyl ketone and combinations thereof.
- step (b) water is added to the melt obtained in step (a) and then stirred to self-emulsify the dissolved aqueous dispersion polyester resin.
- the water may be added so that the solids content of the finally produced aqueous dispersion emulsion is 20% by weight, 40% by weight, 20-60% by weight, such as 40-60% by weight.
- the amount of water to be added is preferable in view of the long-term stability of the water-dispersion emulsion produced when the ratio of water and the organic solvent is in the range of 0.45 to 4.0.
- the rate of addition of water is preferably added slowly at a constant rate of 2.5 to 5.0 g / min, specifically 3.0 to 4.0 g / min, based on 100 g of lysate. If the addition rate of water is 5.0 g / min or less, the particle size of the water-dispersion emulsion is not largely formed, and if it is 2.5 g / min or more, the process time becomes too long and the problem of deterioration of efficiency does not occur.
- the viscosity may increase to decrease the efficiency of stirring, and thus, in the self-emulsification step, agitation may be performed at 300 to 700 rpm. Physical agitation helps to produce a uniformly stable emulsion particle size, with agitation at 300 to 700 rpm being preferred as it can sufficiently break the polyester particles.
- the water-dispersible polyester resin itself acts as an oiling agent to provide a reaction place for forming particles by itself. Therefore, as in the prior art, it is not necessary to add a separate emulsifier such as a surfactant, thereby not only preventing the physical property degradation of the polyester coating film, but also improving the storage stability.
- Step (c) is a process of removing the organic solvent introduced in step (a). Specifically, the self-emulsion obtained in step (b) is depressurized and then the organic solvent is removed to prepare an aqueous dispersion emulsion.
- the decompression may be performed at an average rate of 1.0 to 2.0 mmHg / min, and the organic solvent is separated from the boiling point between water and the organic solvent while gradually decreasing the pressure and temperature, thereby removing all of the organic solvent from the aqueous dispersion. Can be.
- the decompression may be carried out so that the final pressure is 40 to 60 mmHg.
- a water dispersion emulsion having a residual organic solvent content of 0.1 wt% or less based on the total weight of the water dispersion emulsion may be prepared through the depressurization process. If the residual organic solvent content is 0.1% by weight or less based on the total weight of the water-dispersion emulsion, it may cause no odor during use and improve the stability of the water-dispersible polyester particles.
- the present invention can minimize the use of the organic solvent added to the water-dispersible polyester resin, while reducing the harmfulness of the human body, and may not cause odor during use by excluding the use of amines.
- the present invention since it is possible to prepare a water dispersion emulsion having excellent coating and adhesive properties, and water dispersion stability without the use of an emulsifier such as a surfactant, it can be usefully used in the production of coating agents and adhesives.
- TPA terephthalic acid
- DMS 5-sodium sulfodimethyl isophthalic acid
- IPA isophthalic acid
- EG ethylene glycol
- NPG pentyl glycol
- a condenser capable of condensation was connected to a reactor capable of temperature control, and 50 wt% of the water-dispersible polyester resin (A) prepared above and acetone were placed in a cattle and slowly stirred to dissolve the polyester resin in acetone.
- the dissolution temperature was maintained at 40 ° C. below the boiling point of acetone to prevent loss.
- the ionization water / acetone content ratio was adjusted to 1.0 in the dropping funnel, and the valve was opened little by little to adjust the addition rate of water to about 3.5 g / min. At this time, the temperature of the reaction was maintained at 35 to 40 °C and stirred at high speed at 400 rpm.
- a vacuum pump was connected to the reactor to apply vacuum.
- the pressure was reduced rapidly from atmospheric pressure to 400 mmHg and slowly reduced from 400 mmHg to 60 mmHg, and the average decompression rate was performed at 2.0 mmHg / min.
- Water and an organic solvent were removed from the depressurization process to obtain an aqueous dispersion emulsion.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 130 nm, and the residual organic solvent content was measured at 0.05 wt% based on the total weight of the aqueous dispersion emulsion.
- a water dispersion emulsion was prepared in the same manner as in the preparation method of the water dispersion emulsion of Example 1, except that (B) was used instead of (A) as the water dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 200 nm, and the residual organic solvent content was detected below the quantitative limit.
- a water-dispersion emulsion was prepared in the same manner as in the preparation method of the water-dispersion emulsion of Example 1, except that (C) was used instead of (A) as the water-dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 250 nm, and the residual organic solvent content was detected below the limit of determination.
- a water-dispersion emulsion was prepared in the same manner as in the preparation method of the water-dispersion emulsion of Example 1, except that (D) was used instead of the water-dispersible polyester resin (A).
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 310 nm, and the residual organic solvent content was measured at 0.06 wt% based on the total weight of the aqueous dispersion emulsion.
- the water dispersible polyester resin (E) was manufactured by the same method as the manufacturing method of the water dispersible polyester resin (A) of (1).
- the intrinsic viscosity of the water-dispersible polyester resin thus obtained was 0.62 dl / g.
- a water dispersion emulsion was prepared in the same manner as in the preparation method of the water dispersion emulsion of Example 1, except that (E) was used instead of (A) as the water dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 287 nm, and the residual organic solvent content was determined to be 0.08 wt% based on the total weight of the aqueous dispersion emulsion.
- the water dispersible polyester resin (F) was manufactured by the same method as the manufacturing method of the water dispersible polyester resin (A) of Example 1 using it as a raw material.
- the intrinsic viscosity of the water-dispersible polyester resin thus obtained was 0.45 dl / g.
- a water dispersion emulsion was prepared in the same manner as in the preparation method of the water dispersion emulsion of Example 1, except that (F) instead of (A) was used as the water dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 346 nm, and the residual organic solvent content was detected below the quantitative limit.
- Water-dispersible polyester resin (G) was manufactured by the same method as the manufacturing method of water-dispersible polyester resin (A) of Example 1 using g as a raw material.
- the intrinsic viscosity of the water-dispersible polyester resin thus obtained was 0.64 dl / g.
- a water dispersion emulsion was prepared in the same manner as in the preparation method of the water dispersion emulsion of Example 1, except that (G) was used instead of (A) as the water dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 533 nm, and the residual organic solvent content was detected below the quantitative limit.
- Example 1 Water content of Example 1 using 161 g of terephthalic acid, 11 g of 5-sodium sulfodimethyl isophthalic acid, 154 g of isophthalic acid, 34 g of ethylene glycol, 85 g of neopentyl glycol, and 195 g of 1,4-cyclohexanedimethanol as raw materials
- Water dispersible polyester resin (H) was manufactured by the same method as the manufacturing method of acidic polyester resin (A). The intrinsic viscosity of the water-dispersible polyester resin thus obtained was 0.50 dl / g.
- a water-dispersion emulsion was prepared in the same manner as in the preparation method of the water-dispersion emulsion of Example 1, except that (H) was used instead of (A) as the water-dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 3,500 nm, and the residual organic solvent content was measured at 0.05% by weight based on the total weight of the aqueous dispersion emulsion.
- a water dispersible polyester resin (I) was produced in the same manner as in the method for preparing the polyester resin of Example 3, except that the intrinsic viscosity of the resin was 0.2 dl / g.
- the intrinsic viscosity of the water-dispersible polyester resin thus obtained was 0.20 dl / g.
- a water dispersion emulsion was prepared in the same manner as in the preparation method of the water dispersion emulsion of Example 1, except that (I) was used instead of (A) as the water dispersible polyester resin.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 2,500 nm, and the residual organic solvent content was measured at 0.05% by weight based on the total weight of the aqueous dispersion emulsion.
- aqueous dispersion solution (j) 100 g of the water-dispersible polyester resin (J) and 100 g of ionized water were placed in a three-necked flask, heated to a dissolution temperature of 80 ° C., and stirred at 200 rpm to prepare an aqueous dispersion solution (j).
- the average diameter of the particles in the aqueous dispersion solution thus prepared was 15 nm, and the residual organic solvent content was detected below the quantitative limit.
- Water-insoluble polyester resin (K) was prepared in the same manner as in the preparation of the water-dispersible polyester resin (A) of Example 1, using 180 g of terephthalic acid, 180 g of isophthalic acid, 120 g of ethylene glycol and 158 g of neopentyl glycol as raw materials. ) was prepared. The intrinsic viscosity of the polyester resin thus obtained was 0.53 dl / g.
- a water-dispersion emulsion (1) was prepared in the same manner as in the preparation method of the water-dispersion emulsion of Example 1, except that the content ratio of ionized water / acetone was changed to 0.4.
- the average diameter of the particles in the aqueous dispersion emulsion thus obtained was 930 nm.
- compositions (% by weight) of the water dispersible polyester resins prepared in Examples 1 to 7 and Comparative Examples 1 to 4 are shown in Tables 1 and 2 below.
- Example 1 Example 2
- Example 3 Example 4
- Example 5 Example 6
- Example 7 A B C D E F G TPA 26 26 26 17 21 32
- DEG - - - - 6 One One CHDM - - - - - - 10 - 1,6-HD - - - - - - - 2
- the water-dispersible polyester resin was diluted to 0.1% by weight in ion-exchanged water and placed in a dynamic scattering method (DLS) average particle size analyzer to measure the average diameter (Y) of the particles.
- DLS dynamic scattering method
- 10 g of an aqueous dispersion emulsion sample was prepared according to ASTM D 1259-85, and the sample was placed in a vacuum oven at 100 ° C. and ⁇ 750 mmHg, dried for 3 hours, and weighed to calculate a solid content. .
- the particle size change was observed while the aqueous emulsion was stored at room temperature (23-25 ° C.) for 6 months. If the particle size shows a change of 5% or less than the initial particle size, it is determined that there is storage stability and is marked as O. If the particle size shows a change of more than 5% of the initial particle size, it is regarded as having no change Judgment was indicated by X.
- Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 a b c d e f g Resin type A B C D E F G Intrinsic viscosity of resin (dL / g) 0.55 0.45 0.55 0.48 0.62 0.45 0.64 Particle size in emulsion (nm) 130 200 250 310 287 346 533 Emulsion solid content 48 wt% 49 wt% 49 wt% 47 wt% 45 wt% 51 wt% 50 wt% Emulsion Relative Viscosity (cps) 1,300 950 1,350 1,000 900 1,600 1,500 Emulsion 6 months storage stability O O O O O O O O O O Ionized Water / Acetone Content Ratio 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Content of residual organic solvent (% by weight) 0.05 - - 0.06 0.08 - - -
- the aqueous dispersion emulsions according to Examples 1-7 had a viscosity of 2,000 cps or less despite having a solids content of over 40% by weight.
- the water dispersion emulsions according to Examples 1 to 7 exhibited little long-term storage stability with little change in particle size for 6 months.
- very good results in water resistance, acid resistance and alkali resistance were obtained.
- the water dispersion emulsion (h) of Comparative Example 1 has a low aliphatic compound content of less than 20% by weight
- the water dispersion emulsion (i) of Comparative Example 2 has particles due to the low intrinsic viscosity (0.2 dl / g) of the resin. The large size was not able to secure long-term storage.
- the aqueous dispersion emulsion (j) of Comparative Example 3 contains about 4 times more than the amount of sulfonic acid metal base monomer (ie, DMS), which was confirmed to be very high relative viscosity. Furthermore, as a result of the water resistance test of Comparative Example 3 containing a large amount of sulfonic acid metal base monomer, a poor appearance problem occurred.
- aqueous dispersion (l) of Comparative Example 5 used the same resin as in Example 1, but the ratio of ionized water and acetone was added to less than 0.45, so that the size of the particles are formed large to ensure long-term storage properties, The viscosity also exceeded 2,000 cps.
- aqueous dispersion emulsions prepared in Examples 2 and 3 and Comparative Examples 3 and 4 were stirred while adding 10 wt% of the curing agent BL XP2706 (Bayer).
- about 20 ⁇ m was added to the EGI steel sheet after adding 0.3 wt.% Of BYK (BYK) 381 and 0.1 wt.% Of antifoaming agent BYK (BYK) 019 to increase flowability of the coating substrate and to prevent bubbles.
- BYK BYK
- antifoaming agent BYK 019 antifoaming agent
- the coating films comprising the water dispersion emulsions (b) and (c) according to Examples 2 and 3 of the present invention, respectively, have excellent water resistance, and are resistant to acid and alkali for both 18 and 13 hours. It showed excellent chemical resistance.
- the aqueous dispersion emulsions according to Examples 2 and 3 exhibited similar film properties to those of the solution (k) according to Comparative Example 4 prepared by dissolving the polyester resin in an organic solvent without being dispersed.
- the coating film containing the water-dispersion emulsion (j) according to Comparative Example 3 the content of DMS is too high, whitening of the coating film when immersed in water, the water resistance was inferior, acid resistance and alkali resistance measurement time is 2 hours And 1 hour, indicating poor chemical resistance.
- Y is the average particle diameter of the water dispersion emulsion
- X is the content ratio of water / organic solvent
- a and k each independently represent a constant.
- the average particle diameter (Y) of the water-dispersion emulsion can be expressed as an exponential function that decreases constantly as the ratio (X) of ionized water / acetone increases.
- the constant a increased by 1/10 times when the sulfonic acid metal base monomer was increased by 1 mol% based on the total acid component, and the intrinsic viscosity of the water-dispersible polyester including the sulfonic acid metal base was 0.1.
- a decrease of dl / g tended to increase by 10 times.
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Abstract
Description
조성(wt%) | 실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 | 실시예7 |
A | B | C | D | E | F | G | |
TPA | 26 | 26 | 26 | 17 | 21 | 32 | 31 |
IPA | 24.2 | 24.2 | 25.2 | 16 | 16 | 28 | 27 |
DMS | 2.8 | 2.8 | 1.8 | 2 | 3 | 4 | 3 |
AA | - | - | - | 20 | - | - | - |
SA | - | - | - | - | 33 | - | - |
EG | 18 | 18 | 18 | 19 | 2 | 3 | 2 |
NPG | 29 | 29 | 29 | 26 | 19 | 22 | 34 |
DEG | - | - | - | - | 6 | 1 | 1 |
CHDM | - | - | - | - | - | 10 | - |
1,6-HD | - | - | - | - | - | - | 2 |
조성(wt%) | 비교예1 | 비교예2 | 비교예3 | 비교예4 |
H | I | J | K | |
TPA | 25 | 26 | 40 | 30 |
IPA | 25 | 25.2 | 12 | 30 |
DMS | 2 | 1.8 | 15 | - |
EG | 5 | 18 | 29 | 17 |
NPG | 13 | 29 | - | 23 |
CHDM | 30 | - | - | - |
DEG | - | - | 4 | - |
실시예1 | 실시예2 | 실시예3 | 실시예4 | 실시예5 | 실시예6 | 실시예7 | |
a | b | c | d | e | f | g | |
수지 종류 | A | B | C | D | E | F | G |
수지의 고유점도(dL/g) | 0.55 | 0.45 | 0.55 | 0.48 | 0.62 | 0.45 | 0.64 |
에멀젼 내 입자크기 (nm) | 130 | 200 | 250 | 310 | 287 | 346 | 533 |
에멀젼고형분 함량 | 48 중량% | 49 중량% | 49 중량% | 47 중량% | 45 중량% | 51 중량% | 50 중량% |
에멀젼 상대점도(cps) | 1,300 | 950 | 1,350 | 1,000 | 900 | 1,600 | 1,500 |
에멀젼 6개월 저장 안정성 | O | O | O | O | O | O | O |
이온화수/아세톤 함량비 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
잔류 유기 용제의 함량(중량%) | 0.05 | - | - | 0.06 | 0.08 | - | - |
비교예1 | 비교예2 | 비교예3 | 비교예5 | |
h | i | j | l | |
수지 종류 | H | I | J | A |
수지의 고유점도(dL/g) | 0.50 | 0.20 | 0.47 | 0.55 |
에멀젼 내 입자크기 (nm) | 3500 nm | 2500 nm | 15 nm | 930 nm |
에멀젼 고형분 함량 | 48 중량% | 47 중량% | 50 중량% | 65 중량% |
에멀젼 상대점도(cps) | 측정불가 | 측정불가 | 35,000 | 5,300 |
에멀젼 6개월 저장 안정성 | 층분리 | 층분리 | O | X |
이온화수/아세톤 함량비 | 1.0 | 1.0 | 1.0 | 0.4 |
잔류 유기 용제의 함량(중량%) | 0.05 | 0.05 | - | - |
b | c | j | k | |
내수성 | O | O | X | O |
내산성 | 18hr | 18hr | 2hr | 18hr |
내알칼리성 | 13hr | 13hr | 1hr | 13hr |
a | b | c | |
DMS 함량 (몰%) | 3 | 3 | 2 |
수지의 고유점도 (㎗/g) | 0.55 | 0.45 | 0.55 |
함수 Y(nm) | K*e- 0.034X | K*e- 0.36X | K*e- 0.33X |
Claims (16)
- 반복단위로서, (i) 산 성분에 대해 1 내지 3 몰%의 술폰산 금속염기 그룹을 갖는 방향족 디카르복실산을 포함하는 산 성분, 및 (ii) 선형 글리콜을 포함하는 글리콜 성분을 갖는 폴리에스테르 수지로서,상기 수지가 수지 총 중량을 기준으로 20 중량% 이상의 선형 글리콜 성분을 함유하는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 술폰산 금속염기 그룹을 갖는 방향족 디카르복실산이, 5-소디움술포디메틸 이소프탈산, 5-소디움 이소프탈산 및 이의 조합으로 이루어진 군에서 선택되는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 산 성분이 테레프탈산, 이소프탈산, 프탈산, 옥소프탈산 및 이의 조합으로 이루어진 군에서 선택되는 방향족 디카르복실산을 포함하는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 산 성분이 아디프산, 아젤라산, 세박산, 푸마르산 및 이의 조합으로 이루어진 군에서 선택되는 선형 디카르복실산을 더 포함하는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 선형 글리콜이 에틸렌 글리콜, 모노프로필렌 글리콜, 디에틸렌 글리콜, 디프로필렌 글리콜, 네오펜틸 글리콜, 1,6-헥산디올, 메틸펜틸글리콜 및 이의 조합으로 이루어진 군에서 선택되는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 수분산성 폴리에스테르 수지가 0.3 내지 1.0 ㎗/g의 고유 점도를 갖는, 수분산성 폴리에스테르 수지.
- 제1항에 있어서,상기 글리콜 성분이 1,4-사이클로헥산 디메탄올, 트리사이클로데칸 디메탄올 및 이의 조합으로 이루어진 군에서 선택되는 지환족 글리콜을 더 포함하는, 수분산성 폴리에스테르 수지.
- 반복단위로서, (i) 산 성분에 대해 1 내지 3 몰%의 술폰산 금속염기 그룹을 갖는 방향족 디카르복실산을 포함하는 산 성분, 및 (ii) 선형 글리콜을 포함하는 글리콜 성분을 갖는 폴리에스테르 수지로서,상기 수지가 수지 총 중량을 기준으로 20 중량% 이상의 선형 글리콜 성분을 함유하는, 수분산성 폴리에스테르 수지를 포함하고,상기 수분산성 폴리에스테르 수지의 평균 입자 직경이 100 내지 650 nm인, 수분산 에멀젼.
- 제8항에 있어서,상기 수분산 에멀젼이 20 중량% 이상의 고형분 함량을 갖는, 수분산 에멀젼.
- 제8항에 있어서,상기 수분산 에멀젼이 500 내지 2,000 cps의 상대점도를 갖는, 수분산 에멀젼.
- (a) 100 ℃ 미만의 유기 용제에, 반복단위로서, (i) 산 성분에 대해 1 내지 3 몰%의 술폰산 금속염기 그룹을 갖는 방향족 디카르복실산을 포함하는 산 성분, 및 (ii) 선형 글리콜을 포함하는 글리콜 성분을 갖는 폴리에스테르 수지로서, 상기 수지가 수지 총 중량을 기준으로 20 중량% 이상의 선형 글리콜 성분을 함유하는 수분산성 폴리에스테르 수지를 용해시키는 단계;(b) 단계 (a)에서 수득한 용해물에 물을 첨가한 후 교반하여 자기-유화(self-emulsion)시키는 단계; 및(c) 단계 (b)에서 수득한 자기-유화물을 감압한 후 유기 용제를 제거하여 수분산 에멀젼을 제조하는 단계를 포함하는, 수분산 에멀젼의 제조방법.
- 제11항에 있어서,상기 단계 (a)에서 유기 용제가 아세톤, 메틸에틸케톤, 에틸이소부틸케톤 및 이의 조합으로 이루어진 군에서 선택되는 케톤계 유기 용제인, 수분산 에멀젼의 제조방법.
- 제11항에 있어서,상기 단계 (b)에서 수분산 에멀젼의 고형분 함량이 20 내지 60 중량%가 되도록 물을 첨가하는, 수분산 에멀젼의 제조방법.
- 제11항에 있어서,상기 단계 (b)에서 물이 용해물 100 g을 기준으로 2.5 내지 5.0 g/분의 속도로 첨가되는, 수분산 에멀젼의 제조방법.
- 제11항에 있어서,상기 단계 (b)에서 교반이 300 내지 700 rpm의 속도로 수행되는, 수분산 에멀젼의 제조방법.
- 제11항에 있어서,상기 단계 (c)에서 수분산 에멀젼이 총 중량을 기준으로 0.1 중량% 이하의 잔류 유기 용제를 갖는, 수분산 에멀젼의 제조방법.
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CA2980474A CA2980474A1 (en) | 2015-04-23 | 2016-03-23 | Water-dispersible polyester resin having improved water resistance and chemical resistance, water-dispersion emulsion containing same, and preparation method thereof |
JP2017555542A JP2018513264A (ja) | 2015-04-23 | 2016-03-23 | 耐水性と耐薬品性が改善された水分散性ポリエステル樹脂、これを含む水分散エマルジョン、およびその製造方法 |
US15/565,812 US20180127540A1 (en) | 2015-04-23 | 2016-03-23 | Water-dispersible polyester resin having improved water resistance and chemical resistance, water-dispersion emulsion containing same, and preparation method thereof |
MX2017012723A MX2017012723A (es) | 2015-04-23 | 2016-03-23 | Resina de poliester dispersable en agua que tiene resistencia al agua y resistencia a compuestos quimicos mejoradas, emulsion de dispersion en agua que contiene la misma y metodo de preparacion de la misma. |
AU2016252895A AU2016252895B2 (en) | 2015-04-23 | 2016-03-23 | Water-dispersible polyester resin having improved water resistance and chemical resistance, water-dispersion emulsion containing same, and preparation method thereof |
EP16783332.6A EP3287481B1 (en) | 2015-04-23 | 2016-03-23 | Water-dispersible polyester resin having improved water resistance and chemical resistance, water-dispersion emulsion containing same, and preparation method thereof |
CN201680023247.2A CN107531893A (zh) | 2015-04-23 | 2016-03-23 | 具有改善的耐水性和耐化学性的水分散聚酯树脂、含有该水分散聚酯树脂的水分散乳液及其制备方法 |
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KR1020150057180A KR102375194B1 (ko) | 2015-04-23 | 2015-04-23 | 내수성 및 내화학성이 향상된 수분산성 폴리에스테르 수지, 이를 포함하는 수분산 에멀젼, 및 이의 제조방법 |
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CN (1) | CN107531893A (ko) |
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- 2016-03-23 WO PCT/KR2016/002889 patent/WO2016171398A1/ko active Application Filing
- 2016-03-23 JP JP2017555542A patent/JP2018513264A/ja active Pending
- 2016-03-23 US US15/565,812 patent/US20180127540A1/en not_active Abandoned
- 2016-03-23 AU AU2016252895A patent/AU2016252895B2/en active Active
- 2016-03-23 CN CN201680023247.2A patent/CN107531893A/zh active Pending
- 2016-03-23 CA CA2980474A patent/CA2980474A1/en not_active Abandoned
- 2016-03-23 EP EP16783332.6A patent/EP3287481B1/en active Active
- 2016-03-23 MX MX2017012723A patent/MX2017012723A/es unknown
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TW201700530A (zh) | 2017-01-01 |
KR20160126286A (ko) | 2016-11-02 |
CN107531893A (zh) | 2018-01-02 |
KR102375194B1 (ko) | 2022-03-16 |
CA2980474A1 (en) | 2016-10-27 |
US20180127540A1 (en) | 2018-05-10 |
EP3287481B1 (en) | 2020-08-19 |
JP2018513264A (ja) | 2018-05-24 |
MX2017012723A (es) | 2017-11-30 |
AU2016252895A1 (en) | 2017-10-12 |
EP3287481A1 (en) | 2018-02-28 |
EP3287481A4 (en) | 2018-09-19 |
AU2016252895B2 (en) | 2020-03-19 |
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