WO2024205379A1 - 이소시아네이트 조성물 - Google Patents
이소시아네이트 조성물 Download PDFInfo
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- WO2024205379A1 WO2024205379A1 PCT/KR2024/095635 KR2024095635W WO2024205379A1 WO 2024205379 A1 WO2024205379 A1 WO 2024205379A1 KR 2024095635 W KR2024095635 W KR 2024095635W WO 2024205379 A1 WO2024205379 A1 WO 2024205379A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C265/00—Derivatives of isocyanic acid
- C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
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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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
- C08G18/78—Nitrogen
- C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
Definitions
- the present invention relates to an isocyanate composition which has improved storage stability, suppresses discoloration and white turbidity, and exhibits improved workability such as shortened filter time.
- Isocyanate compounds are highly valuable compounds that are utilized not only in the chemical and resin industries, but also as precision chemical products including optical materials.
- Xylylene diisocyanate (XDI) a representative example of an isocyanate compound, is in increasing demand as a high value-added chemical material as a raw material for advanced optical lenses.
- isocyanate compounds exhibit high reactivity, they are prone to discoloration or whitening by reacting with moisture in the air during the storage process.
- isocyanate compounds when isocyanate compounds are stored for a long period of time, they form oligomers larger than dimers through self-polymerization, causing discoloration or whitening.
- Isocyanate compounds are used as raw materials for polyurethane, and are used in various ways such as coatings, adhesives, paints, foams, and optical materials.
- the molecular weight of the polymer solution rapidly increases, which causes a decrease in stirring power, an increase in filter time, and clogging of the filter, thereby lowering workability.
- problems such as a decrease in transparency and discoloration of the manufactured lens.
- antioxidants BHT has been mainly used, but BHT causes yellowing when stored for a long period of time, and its use is gradually being restricted as an environmentally regulated substance.
- the present invention aims to provide an isocyanate composition which has improved storage stability, suppresses discoloration and white turbidity, and improves transparency when applying a resulting product.
- a phenolic first antioxidant represented by the following chemical formula 1;
- An isocyanate composition comprising:
- Ra is an alkylene group of C1 to C20
- n is an integer from 0 to 3
- L is an alkylene group of C1 to C20
- R 1 is hydrogen; a C1 to C20 alkyl group; or a C6 to C30 aryl group, unsubstituted or substituted with one or more substituents among a hydroxy group and a C1 to C20 alkyl group,
- R 2 and R 3 are each independently hydrogen or a C1 to C6 alkyl group, or are connected to each other to form a heterocyclic structure,
- n is an integer of 0 or 1.
- a polymerization composition comprising the isocyanate composition; and at least one of a polyfunctional thiol compound, a polyfunctional alcohol compound, and a polyfunctional episulfide compound.
- an article particularly an optical adhesive, an optical glue, or an optical lens, comprising a polymer obtained by polymerizing the isocyanate composition; and at least one of a polyfunctional thiol compound, a polyfunctional alcohol compound, and a polyfunctional episulfide compound is provided.
- the isocyanate composition according to the present invention has improved stability, suppresses an increase in viscosity, suppresses discoloration or white turbidity, and improves transparency when applying a resulting product.
- a polymer produced by polymerizing the above isocyanate composition with a polyfunctional thiol compound, a polyfunctional alcohol compound or a polyfunctional episulfide compound also exhibits excellent transparency and is useful for producing articles such as optical adhesives, optical glues and optical lenses.
- Diisocyanates and their adducts are highly reactive with moisture or alcohol, so they are filled with nitrogen after manufacturing, sealed completely, and stored in a refrigerator. However, when opened for use, they reacted with moisture in the air, or discoloration or clouding occurred depending on the air temperature. In addition, when the sealed-stored diisocyanates or their adducts were opened and used, the oligomer content increased or yellowing occurred during the storage time until exhaustion.
- the inventors of the present invention studied an isocyanate composition capable of improving the storage stability of a diisocyanate compound and suppressing an increase in viscosity and discoloration/whitening, and as a result, by using a phenol antioxidant and a phosphorus antioxidant having a specific structure together, the oligomerization reaction of an isocyanate compound is suppressed, and as a result, an increase in the viscosity of the isocyanate composition caused by the oligomer is suppressed, discoloration and whitening are suppressed, and further, color changes in lenses caused by various additives added during the manufacture of optical articles, particularly optical lenses, are prevented, and the present invention was completed.
- Ra is an alkylene group of C1 to C20
- n is an integer from 0 to 3
- L is an alkylene group of C1 to C20
- R 1 is hydrogen; a C1 to C20 alkyl group; or a C6 to C30 aryl group, unsubstituted or substituted with one or more substituents among a hydroxy group and a C1 to C20 alkyl group,
- R 2 and R 3 are each independently hydrogen or a C1 to C6 alkyl group, or are connected to each other to form a heterocyclic structure,
- n is an integer of 0 or 1.
- the diisocyanate-based compound includes diisocyanates, adducts thereof, or mixtures thereof.
- the diisocyanate is not particularly limited as long as it contains two isocyanate groups (NCO groups) in the molecule.
- an aliphatic diisocyanate containing an aromatic ring more specifically, a xylylene diisocyanate such as o-xylylene diisocyanate, m-xylylene diisocyanate, or p-xylylene diisocyanate can be preferably used.
- the adduct of the above diisocyanate is a reaction product formed by a chemical reaction of the diisocyanate. Specifically, it may be a polyisocyanate formed by a polymerization reaction of the diisocyanate, or it may be an adduct formed by a reaction of the above diisocyanate with trimethylolpropane or glycerin.
- the isocyanate composition according to the present invention comprises a phenolic first antioxidant represented by the following chemical formula 1:
- Ra is an alkylene group of C1 to C20, more specifically, an alkylene group of C1 or more, or C5 or more, or C7 or more, and C20 or less, or C18 or less, or C17 or less,
- n is an integer from 0 to 3, more specifically an integer of 0 or 3.
- phenolic first antioxidant examples include octadecyl 3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate (CAS No. 2082-79-3); benzenepropanoic acid, 3,5-bis (1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl ester (CAS No. 125643-61-0); Or pentaerythritol Tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, CAS No. 6683-19-8), etc., and any one of these or a mixture of two or more thereof can be used.
- IRGANOX 1010 manufactured by BASF
- IRGANOX 1135 manufactured by BASF
- IRGANOX 1076 manufactured by BASF
- SONGGNOX 1076 manufactured by SONGWON
- discoloration and clouding in isocyanate compositions are caused by oligomerization of isocyanates, quinoidization of benzene rings within the molecule, or by side products generated by side reactions due to oxygen, moisture, or high heat during the synthesis and purification processes.
- the first phenol antioxidant represented by the chemical formula 1 can prevent discoloration and clouding of the isocyanate composition by delaying the oligomerization reaction rate of isocyanate and suppressing the above-mentioned side reactions through radical capture reaction.
- the above-mentioned phenol-based first antioxidant contains a substituent having greater steric hindrance than BHT, so that it can exhibit a more excellent oxidation prevention effect, and as a result, the storage stability improvement effect for the isocyanate composition is excellent.
- the phenol-based first antioxidant when used in combination with the second antioxidant described below, the occurrence of discoloration during lens manufacturing due to the use of these antioxidants can be prevented.
- the second antioxidant contains a t-butyl-substituted phenyl structure in the molecule, the phenol-based first antioxidant can exhibit excellent compatibility due to high structural similarity, and as a result, can exhibit a more enhanced effect as an antioxidant.
- the above phenol-based first antioxidant may be included in an amount of 10 to 3000 ppm based on the total weight of the diisocyanate-based compound.
- the content of the above-mentioned phenolic first antioxidant is too small, it is difficult to exhibit sufficient discoloration or whitening prevention effect, and conversely, if it is included in an excessive amount exceeding a certain level, the phenolic first antioxidant itself may become a cause of discoloration and whitening. Accordingly, in the present invention, by including the above-mentioned phenolic first antioxidant in the above-mentioned content range, a more enhanced discoloration and whitening inhibition effect can be implemented.
- the phenolic first antioxidant may be included in an amount of 10 ppm or more, or 20 ppm or more, or 25 ppm or more, and 3000 ppm or less, or 2000 ppm or less, or 1500 ppm or less, based on the total weight of the diisocyanate compound.
- the phenol-based first antioxidant may optionally further include, in addition to the compound represented by the chemical formula 1, at least one of other phenol-based antioxidants commonly used in the production of isocyanate compositions.
- phenol antioxidants include phenol; dibutylhydroxytoluene; t-butylhydroquinone; butylhydroxyanisole; pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]; thiodiethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate]; N,N'-hexane-1,6-diylbis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionamide]; benzene propanoic acid 3,5-bis(1,1-dimethylethyl)-4-hydroxy C7-C9 side-chain alkyl ester; 3,3',3",5,5',5"-hexa-tert-butyl-a,a',a"-(mesitylene-2,4,6-triyl)tri-p
- the above other phenolic antioxidants may be included in an amount that does not inhibit the effect of the isocyanate composition. Specifically, the above other phenolic antioxidants may be included in an amount of 5 to 1000 parts by weight based on 100 parts by weight of the phenolic first antioxidant.
- the above isocyanate composition comprises a second antioxidant represented by the following chemical formula 2:
- L is an alkylene group of C1 to C20, more specifically an alkylene group of C1 or more, or C2 or more, and C20 or less, or C12 or less, or C6 or less, or C4 or less,
- R 1 is hydrogen; a C1 to C20 alkyl group; or a C6 to C30 aryl group, unsubstituted or substituted with one or more substituents among a hydroxy group and a C1 to C20 alkyl group,
- R 2 and R 3 are each independently hydrogen or a C1 to C6 alkyl group, or are connected to each other to form a heterocyclic structure,
- n is an integer of 0 or 1.
- L may be an alkylene group having C1 or more, or C2 or more, and C20 or less, or C12 or less, or C6 or less, or C4 or less.
- R 1 may be more specifically, hydrogen; a C1 to C12 alkyl group; or a C6 to C18 aryl group unsubstituted or substituted with one or more substituents selected from a hydroxy group and a C1 to C6 alkyl group, and more specifically, R 1 may be a phenyl group substituted with one or more substituents selected from a C3 to C6 alkyl group.
- R 2 and R 3 may each independently be hydrogen or a C1 to C4 alkyl group, or may be connected to each other to form a heterocyclic structure.
- n is an integer of 0.
- the above-mentioned antioxidant may be a compound represented by the following chemical formula 3 or chemical formula 4:
- R 11 may be hydrogen; a C1 to C12 alkyl group; or a C6 to C18 aryl group substituted or unsubstituted with one or more substituents among a hydroxy group and a C1 to C6 alkyl group, and more specifically, R 11 may be a phenyl group substituted with one or more substituents among a C3 to C6 alkyl group such as an isopropyl group, a t-butyl group, etc.
- R 12 and R 13 can each independently be hydrogen or a C1 to C6 alkyl group, more specifically, R 12 and R 13 can each independently be hydrogen or a C1 to C4 alkyl group, and even more specifically, R 12 and R 13 can each be hydrogen.
- L 1 may be an alkylene group of C1 to C20, more specifically, L 1 may be an alkylene group of C1 or more, or C2 or more, or C3 or more, and C20 or less, or C12 or less, or C6 or less, or C4 or less, and more specifically, may be an ethylene, propylene, or butylene group,
- R 21 to R 25 can each independently be hydrogen, a hydroxyl group, or a C1 to C12 alkyl group, more specifically, R 21 and R 24 are each independently a C1 to C6 alkyl group such as methyl, ethyl, t-butyl, R 25 is a hydroxyl group, and R 22 and R 23 can be hydrogen,
- n 1 is an integer of 0 or 1.
- the above-mentioned second antioxidant can improve processing stability due to hydroperoxide decomposition of phosphite at high temperatures. As a result, when manufacturing and processing optical products at high temperatures using an isocyanate composition including the above-mentioned second antioxidant, excellent discoloration prevention properties can be exhibited.
- tris(2,4-di-tert-butylphenyl)phosphite (CAS No. 31570-04-4), 2-(tert-butyl)-6-methyl-4-(3-((2,4,8,10-tetrakis(tert-butyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy)propyl)phenol (CAS No. 203255-81-6), or a mixture thereof can be used.
- products such as IRGAFOS 168 (BASF), ETHAPHOS 368 (Albemarle Corp), ALKANOX 240 (Great Lakes Chemical Corp. (Headquarters), SONGNOX 1680 (Songwon Industrial), and SUMILIZER GP (Sumitomo) can be used.
- the above-mentioned second antioxidant may be included in an amount of 10 to 3000 ppm based on the total weight of the diisocyanate compound.
- the phosphorus secondary antioxidant may be included in a content of 10 ppm or more, or 20 ppm or more, or 25 ppm or more, and 3000 ppm or less, or 2000 ppm or less, or 1500 ppm or less, based on the total weight of the diisocyanate compound.
- the above-mentioned second antioxidant may optionally further include at least one of other phosphorus antioxidants commonly used in the production of isocyanate compositions in addition to the above-mentioned compound.
- antioxidants include dioctyl phosphonate, tributyl phosphite, triphenyl phosphite, etc., and one or a mixture of two or more of these may be used.
- the above other phosphorus antioxidants may be included in an amount that does not inhibit the effect of the isocyanate composition, and specifically, the above other phosphorus antioxidants may be included in an amount of 5 to 50 parts by weight based on 100 parts by weight of the phosphorus secondary antioxidant.
- the isocyanate composition can contain the phenol-based first antioxidant and the phosphorus-based second antioxidant in a weight ratio of 1:1 to 5:1. More specifically, it can contain them in a weight ratio of 1:1 to 4:1 or 2:1 to 4:1.
- the isocyanate composition may contain a total weight of the phenol-based first antioxidant and the phosphorus-based second antioxidant of 20 to 4000 ppm based on the total weight of the diisocyanate compound. More specifically, it may contain 20 ppm or more, or 50 ppm or more, and 4000 ppm or less, or 3000 ppm or less, or 1500 ppm or less.
- the isocyanate composition according to the present invention may include xylylene diisocyanate as a diisocyanate-based compound; a phenol-based first antioxidant represented by the chemical formula 1; and a phosphorus-based second antioxidant represented by the chemical formula 3.
- the isocyanate composition may include xylylene diisocyanate as a diisocyanate-based compound; and octadecyl-3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate (e.g., IRGANOX 1076, manufactured by BASF); benzenepropionic acid, 3,5-bis(1,1-dimethyl-ethyl)-4-hydroxy-C7-C9 branched alkyl ester as a phenol-based first antioxidant; or pentaerythritol tetrakis(3-3,5-di-tert-butyl-4-hydroxyphenyl)propionate (e.g., IRGANOX 1010, BASF); and as a second antioxidant, tris(2,4-di-tert-butylphenyl)phosphite (IRGAFOS 168, BASF).
- xylylene diisocyanate as a diiso
- the phenol-based first antioxidant and the phosphorus-based second antioxidant may be included in an amount of 10 to 500 ppm, more specifically, 10 to 100 ppm, and even more specifically, 10 to 50 ppm, based on the total weight of the diisocyanate-based compound.
- the storage stability effect may be increased.
- the phenol-based first antioxidant may be included in an amount of 10 to 50 ppm, more specifically, 25 to 50 ppm, or 25 to 40 ppm, or 40 to 50 ppm, based on the total weight of the diisocyanate-based compound
- the phosphorus-based second antioxidant may be included in an amount of 10 to 50 ppm, more specifically, 10 to 25 ppm, or 25 to 50 ppm, based on the total weight of the diisocyanate-based compound.
- phenol-based first antioxidant and phosphorus-based second antioxidant may be included in a mixed weight ratio of 1:1 to 4:1.
- the isocyanate composition according to the present invention may include a xylylene diisocyanate-trimethylolpropane (XDI-TMP) adduct as a diisocyanate compound; a phenolic first antioxidant represented by the chemical formula 1; and one of a compound represented by the chemical formula 3 and a compound represented by the chemical formula 4 as a phosphorus second antioxidant.
- XDI-TMP xylylene diisocyanate-trimethylolpropane
- the isocyanate composition may include a xylylene diisocyanate-trimethylolpropane (XDI-TMP) adduct as a diisocyanate compound; octadecyl-3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionate as a phenolic first antioxidant; As a second antioxidant, it may include 2-(tert-butyl)-6-methyl-4-(3-((2,4,8,10)-tetrakis(tert-butyl)dibenzo[d,f][1,3,2]dioxaphosphepin-6-yl)oxy)propyl)phenol (e.g., SUMILIZER GP, manufactured by Sumitomo).
- SUMILIZER GP manufactured by Sumitomo
- the phenol-based first antioxidant and the phosphorus-based second antioxidant may be included in an amount of 500 to 1500 ppm, respectively, based on the total weight of the diisocyanate-based compound. More specifically, the phenol-based first antioxidant and the phosphorus-based second antioxidant may be included in an amount of 500 to 1000 ppm or 1000 to 1500 ppm, respectively, based on the total weight of the diisocyanate-based compound. In addition, the phenol-based first antioxidant and the phosphorus-based second antioxidant may be included in a mixed weight ratio of 1:1 to 2:1.
- the above-mentioned isocyanate composition can be prepared by adding a phenol-based first antioxidant and a phosphorus-based second antioxidant to a diisocyanate compound and mixing them.
- the order of addition of the phenol-based first antioxidant and the phosphorus-based second antioxidant is not particularly limited.
- the phosphorus-based second antioxidant may be added after the addition of the phenol-based first antioxidant, or the phenol-based first antioxidant may be added after the addition of the phosphorus-based second antioxidant.
- the phenol-based first antioxidant and the phosphorus-based second antioxidant may be mixed first and then added to the diisocyanate compound.
- the above mixing can be performed according to a conventional mixing method.
- the isocyanate composition of the present invention having the above-described composition can effectively control an increase in the viscosity of the isocyanate composition and the occurrence of discoloration or white turbidity by suppressing the occurrence of oligomers immediately after and after production through the use of an optimally combined antioxidant.
- the isocyanate composition has an APHA value of 25 or less, more specifically 20 or less, measured according to ASTM D1209 after being stored at 25°C for 1 year under nitrogen filling. Since a lower APHA value indicates better discoloration resistance, the lower limit is not limited, but may be, for example, greater than 0 or greater than 1.
- the isocyanate composition may satisfy one or more, or both, of the following conditions (i) and (ii):
- the above isocyanate composition does not exhibit a white clouding phenomenon even after being stored at 25°C in an air atmosphere for one year.
- the isocyanate composition includes diisocyanate
- the following conditions (a1) and (a2) can be satisfied.
- the above isocyanate composition (a3) can further satisfy the condition that the APHA value measured according to ASTM D1209 after being filled with nitrogen and stored at 25°C for 7 days is 10 or less, more specifically 10 or less, or 8 or less, and more than 0 or 1 or more.
- (b1) Viscosity measured after storing the isocyanate composition at 25°C for 24 weeks under nitrogen filling: 500 to 1000 cps, more specifically 500 cps or more, or 600 cps or more, or 650 cps or more, and 1000 cps or less, or 850 cps or less, or 750 cps or less;
- (b2) APHA value measured according to ASTM D1209 after storing the isocyanate composition at 25°C for 24 weeks under nitrogen filling: 20 or less, more specifically 20 or less, or 19 or less, or 18 or less, and greater than 0 or 1 or more;
- the viscosity increase rate calculated according to the following mathematical formula 1 is 50% or less, more specifically 50% or less, or 40% or less, or 36% or less, and 0% or more, or 5% or more, or 10% or more, or 18% or more;
- the APHA increase rate calculated according to the following mathematical formula 2 is 50% or less, more specifically 50% or less, or 45% or less, or 43% or less, and 0% or more, or 5% or more, or 29% or more.
- Viscosity increase rate [(Viscosity after 24 weeks - Initial viscosity) / Initial viscosity] x 100
- the initial viscosity is the viscosity of the diisocyanate compound used in the production of the isocyanate composition, measured under the conditions of 25°C and 5 rpm after rotation per minute,
- the viscosity after 24 weeks is the viscosity measured under the conditions of 25°C and 5 rpm after storing the isocyanate composition for 24 weeks at 25°C with nitrogen filled.
- APHA growth rate [(APHA after 24 weeks - initial APHA) / initial APHA] x 100
- the initial APHA is the APHA measured according to ASTM D1209 for the diisocyanate compound used in the preparation of the isocyanate composition
- APHA after 24 weeks is the APHA of the isocyanate composition measured according to ASTM D1209 after the isocyanate composition was stored at 25°C for 24 weeks with nitrogen filling.
- the isocyanate composition according to the present invention has excellent stability and high transparency, and therefore can be suitably used in a polymerization composition for producing optical articles.
- a polymerization composition which comprises, together with the above-described isocyanate composition, at least one of a polyfunctional thiol compound, a polyfunctional alcohol compound, and a polyfunctional episulfide compound.
- the polymerization composition may contain the isocyanate composition and at least one of a polyfunctional thiol compound, a polyfunctional alcohol compound and a polyfunctional episulfide compound in a mixed state, or may contain them in a separated state. That is, in the polymerization composition, the isocyanate composition and the polyfunctional thiol compound, the polyfunctional alcohol compound or the polyfunctional episulfide compound may be in a mixed state by contacting each other, or may be in a separated state so as not to contact each other.
- the multifunctional thiol compound is a compound containing two or more thiol groups (-SH) per molecule, and specifically, may be a compound having two or more, or three or more, and eight or less, or five or less thiol groups per molecule.
- the above multifunctional thiol compounds include, for example, 2,3-bis(2-sulfanylethylsulfanyl)propane-1-thiol, 1,9-dimercapto-3,7-dithianonane, 1,13-dimercapto-3,7,11-trithiatridecane, glycol di(3-mercaptopropionate), 1,4-dithiane-2,5-diyldimethanethiol, 2-Mercaptomethyl-1,5-dimercapto-3-thiapentane, trimethylolpropane tri(3-mercaptopropionate), 4,8-di(mercaptomethyl)-1,11-dimercapto-3,6,9-trithiaundecane, 5,9-di(mercaptoethyl)-1,12-dimercapto-3,7,10-trithiadodecane, pentaerythritol It may be pentaerythritol
- the polyfunctional alcohol compound is a compound containing two or more hydroxyl groups in one molecule, and specifically, may be a compound having two or more, or three or more, and eight or less, or four or less hydroxyl groups in the molecule.
- dihydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 2-methyl-2,3-butanediol, 1,6-hexanediol, and 1,2-hexanediol
- trihydric alcohols such as glycerol, trimethylolethane, and trimethylolpropane (TMP); tetrahydric alcohols such as diglycerin, ditrimethylolpropane, pentaerythritol, and dipentaerythritol; pentahydric alcohols such as L-arabinitol, ribitol
- the above-mentioned multifunctional episulfide compound may be a compound containing two or more episulfides, i.e., thioepoxy groups, in the molecule, and may have an aliphatic, alicyclic, or aromatic skeleton.
- the polyfunctional episulfide compound is bis( ⁇ -epithiopropylthio)methane, 1,2-bis( ⁇ -epithiopropylthio)ethane, 1,3-bis( ⁇ -epithiopropylthio)propane, 1,2-bis( ⁇ -epithiopropylthio)propane, 1-( ⁇ -epithiopropylthio)-2-( ⁇ -epithiopropylthiomethyl)propane, 1,4-bis( ⁇ -epithiopropylthio)butane, 1,3-bis( ⁇ -epithiopropylthio)butane, 1-( ⁇ -epithiopropylthio)-3-( ⁇ -epithiopropylthiomethyl)butane, 1,5-bis( ⁇ -epithiopropylthio)pentane, 1-( ⁇ -Epithopropylthio)-4-( ⁇ -Epit
- the molar ratio of thiol groups to isocyanate groups may be from about 0.5 to about 1.5, or from about 0.8 to about 1.2, or from about 0.9 to about 1.1, but the present invention is not necessarily limited thereto.
- the polymerization composition may further include additives such as an internal release agent, an ultraviolet absorber, a urethane reaction catalyst, a polymerization initiator, a heat stabilizer, a color corrector, a chain extender, a crosslinking agent, a light stabilizer, a filler, a photosensitizer, etc., as needed, and the content thereof may be appropriately determined within a range that does not impair the discoloration and discoloration-suppressing properties of the composition.
- additives such as an internal release agent, an ultraviolet absorber, a urethane reaction catalyst, a polymerization initiator, a heat stabilizer, a color corrector, a chain extender, a crosslinking agent, a light stabilizer, a filler, a photosensitizer, etc., as needed, and the content thereof may be appropriately determined within a range that does not impair the discoloration and discoloration-suppressing properties of the composition.
- the polymerization composition may further include an internal release agent to improve release properties from the mold during subsequent molding of the product.
- the internal release agent examples include a phosphate release agent, an alkyl phosphate release agent, a fatty acid ester release agent, etc., and one or a mixture of two or more of these may be used. Among these, a phosphate ester release agent may be preferably used.
- phosphate ester release agent a commercially available product such as ZELEC UNTM (manufactured by Stepan Company) can also be used.
- the above internal release agent may be included in an amount of 0.01 wt% or more, or 0.05 wt% or more, and 10 wt% or less, or 5 wt% or less, based on the total weight of the polymerization composition.
- the polymerization composition may further include an ultraviolet absorber.
- the ultraviolet absorber may include a benzothiazole-based ultraviolet absorber, a formamidine-based ultraviolet absorber, and the like, and one or a mixture of two or more of these may be used.
- a formamidine-based ultraviolet absorber may be preferably used.
- the above ultraviolet absorbent may be included in an amount of 0.01 wt% or more, or 0.05 wt% or more, and 0.1 wt% or less, or 0.08 wt% or less, based on the total weight of the polymerization composition.
- the above urethane reaction catalyst may be included in an amount of 0.001 wt% or more, or 0.002 wt% or more, or 0.004 wt% or more, and 0.1 wt% or less, or 0.05 wt% or less, or 0.01 wt% or less, or 0.008 wt% or less, based on the total weight of the polymerization composition.
- the above-described polymerization composition can exhibit excellent discoloration resistance by delaying or suppressing the reaction speed and oligomerization of isocyanate due to the phosphonate compound included in the isocyanate composition, and can prevent discoloration of the lens due to various additives added to improve workability during lens manufacturing, and can also exhibit improved workability such as shortening the filter time during product manufacturing by suppressing an increase in the viscosity of the polymerization composition.
- the polymerization composition can be used in a wide range of fields due to its excellent physical properties, and can be used as an optical material requiring excellent appearance properties, particularly transparency, such as eyeglass lenses, camera lenses, plastic lenses, and prisms.
- an optical article which comprises an isocyanate composition in the polymerization composition described above; and at least one of a polyfunctional thiol compound, a polyfunctional alcohol compound and a polyfunctional episulfide; and a polymer obtained by polymerizing the same.
- the polymerization reaction is carried out by a urethane reaction between an isocyanate group in an isocyanate compound and a thiol group in a multifunctional thiol compound. Since the polyurethane produced by the reaction with a multifunctional thiol compound in this way exhibits excellent transparency, it is particularly useful for the production of optical articles, particularly optical lenses such as eyeglass lenses and camera lenses.
- the polymerization reaction is performed by a urethane reaction (or condensation polymerization reaction) between an isocyanate in an aromatic diisocyanate and a hydroxyl group in a polyfunctional alcohol. Since the polyurethane produced by the reaction with a polyfunctional alcohol compound in this way exhibits excellent transparency and excellent adhesion/bonding properties, it can be useful as an optical adhesive or optical glue.
- the polymerization reaction can be performed under atmospheric pressure and an inert gas atmosphere such as nitrogen or argon.
- the polymerization reaction is performed at a temperature range of -15°C or higher, or 0°C or higher, and 150°C or lower, or 120°C or lower, so that the reaction rate can be easily controlled without concern about discoloration and the reaction efficiency can also be increased.
- the above polymerization reaction may be carried out under conditions without a catalyst, or may be carried out in the presence of a urethane reaction catalyst as described above.
- the catalyst When carried out in the presence of a catalyst, the catalyst may be added when mixing a multifunctional thiol compound, a multifunctional alcohol compound, or a multifunctional episulfide compound with the isocyanate composition.
- the progress of the polymerization reaction can be estimated by measuring the concentration of isocyanate groups in the polymerization reactant by the n-dibutylamine method using a potentiometric titration device, or by measuring the refractive index.
- the polymerization reaction can be performed until the concentration of isocyanate groups in the polymerization reactant reaches the calculated value of the isocyanate groups remaining after reacting with the polyfunctional thiol compound.
- the article comprising the polymer may be, specifically, a paint such as a plastic paint or an automobile paint; a coating agent such as a film coating agent; various inks; a sealant; various microcapsules; artificial leather such as artificial and synthetic leather; a reaction injection molded (RIM) article; a slush powder; an elastic molded article (spandex); a urethane foam; or an optical adhesive, an optical glue, or an optical article such as an optical lens (a spectacle lens, a camera lens, a plastic lens, a prism, etc.).
- the article may be, in particular, an optical lens such as a spectacle lens or a camera lens.
- the above article may be manufactured by performing a molding process after a polymerization reaction in the above polymerization composition, or may be manufactured through a molding process using the above polymerization composition. In the latter case, the polymerization reaction occurs simultaneously during the molding process.
- the temperature of the mold is increased to perform a polymerization reaction between the isocyanate compound and the polyfunctional thiol compound or the polyfunctional episulfide compound.
- the mold is heated to a temperature range in which a urethane polymerization reaction occurs as described above.
- the manufactured polymer specifically, polythiourethane, can be separated from the mold to obtain an optical lens.
- the polymer, specifically polythiourethane, prepared from the polymerization composition according to the present invention exhibits improved workability together with excellent transparency, and is therefore particularly useful for the preparation of optical articles, particularly optical adhesives, optical glues or optical lenses.
- an optical lens comprising a polymer prepared from a polymerization composition according to the present invention exhibits a YI value of 2 or less, or 1.8 or less, as measured according to ASTM E313. Since a lower YI value indicates better discoloration resistance, the lower limit is not particularly limited, but specifically may be greater than 0 or greater than 0.1.
- a flask was placed containing 471 g of 1,2-dichlorobenzene, 32.5 g of m-XDA (m-Xylylenediamine) with a purity of 99.4%, and 0.24 g of 4-hydroxy TEMPO (4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl), and anhydrous hydrochloric acid was injected at a rate of 20 g/hr at room temperature (23 ⁇ 5°C) while stirring. The temperature increased to 50°C while injecting anhydrous hydrochloric acid. After 4 hours of injection, the formed salt was cooled to room temperature, and 43 g of phosgene was injected into the reactor, and the reactor was heated to 130°C.
- a dry ice-acetone cooler was used to prevent phosgene from leaking to the outside from the time of phosgene injection to the end of the reaction. After the reactor temperature reached 130°C, the reactor temperature was maintained at 125-135°C for 2 hours to make the reaction solution transparent. After the solution became transparent, the inside of the reactor was cooled to 80°C, and nitrogen was blown in to discharge and remove phosgene. The solvent was removed from the reaction solution from which phosgene had been removed through vacuum distillation, and the product was purified under reduced pressure at a high temperature of 160°C to obtain m-XDI.
- TFE thin film evaporator
- the obtained XDI-TMP adduct was diluted with ethyl acetate and then used (solid content 75 wt%).
- IRGANOX 1076 manufactured by BASF
- IRGAFOS 168 manufactured by BASF
- the first and second antioxidants were each added in an amount of 25 ppm based on the total weight of m-XDI.
- An isocyanate composition was prepared in the same manner as in Example 1-1, except that the compounds described in Table 1 below were added as antioxidants in the amounts described for m-XDI prepared in Manufacturing Example 1.
- the m-XDI manufactured in Manufacturing Example 1 was used as is without adding an antioxidant.
- An isocyanate composition was prepared in the same manner as in Example 1-1, except that the compounds described in Table 1 below were added as antioxidants in the amounts described for m-XDI prepared in Manufacturing Example 1.
- Antioxidant dosage (Primary antioxidant/Secondary antioxidant, based on total m-XDI weight, ppm)
- Example 1-1 IRGANOX 1076 / IRGAFOS 168 25/25
- Example 1-2 IRGANOX 1076 / IRGAFOS 168 50/50
- Example 1-3 IRGANOX 1076 / IRGAFOS 168 40/10
- Example 1-4 IRGANOX 1010 / IRGAFOS 168 25/25
- IRGANOX 1076 50 Comparative Example 1-3 IRGANOX 1010 50 Comparative Example 1-4 BHT 50 Comparative Example 1-5 IRGANOX 1135 50 Comparative Example 1-6 LOWINOX TBM-6 50 Comparative Example 1-7 IRGAFOS 168 50 Comparative Example 1-8 TPP 50 Comparative Example 1-9 IRGANOX 1010 / TPP 25
- IRGANOX 1076 (BASF): Octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate
- IRGANOX 1010 (BASF): Pentaerythritol-tetrakis(3-3,5-di-tert-butyl-4-hydroxyphenyl)-propionate
- IRGANOX 1135 (BASF): Isooctyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate
- IRGAFOS 168 (BASF): Tris(2,4-di-tert-butylphenyl)phosphite
- TPP triphenyl phosphite
- IRGANOX OPH (manufactured by BASF): dioctyl phosphonate
- IRGANOX 1076 manufactured by BASF
- SUMILIZER GP manufactured by Sumitomo
- the first and second antioxidants were each added in an amount of 500 ppm based on the total weight of the XDI adduct.
- An isocyanate composition was prepared in the same manner as in Example 2-1, except that the compounds described in Table 2 below were added as antioxidants in the amounts described for the XDI-TMP adduct prepared in Manufacturing Example 2.
- the XDI-TMP adduct manufactured in Manufacturing Example 2 was used as is without adding an antioxidant.
- An isocyanate composition was prepared in the same manner as in Example 2-1, except that the compounds described in Table 2 below were added as antioxidants in the amounts described for the XDI-TMP adduct prepared in Manufacturing Example 2.
- Antioxidant dosage (Based on total weight of primary antioxidant/secondary antioxidant, XDI additive, ppm)
- Example 2-1 IRGANOX 1076 / SUMILIZER GP 500/500
- Example 2-2 IRGANOX 1076 / SUMILIZER GP 1500/1500
- Example 2-3 IRGANOX 1076 / SUMILIZER GP 1000/500
- Example 2-4 IRGANOX 1010 / IRGAFOS 168 500/500 Comparative Example 2-1 - 0 Comparative Example 2-2 BHT 1000 Comparative Example 2-3
- IRGANOX 1076 1000 Comparative Example 2-4 SUMILIZER GP 1000 Comparative Example 2-5 LOWINOX TBM-6 1000 Comparative Example 2-6 BHT/ SUMILIZER GP 500/500
- IRGANOX 1076 (BASF): Octadecyl-3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate
- the clouding phenomenon and APHA value were measured by the following methods.
- lenses were manufactured using the isocyanate compositions, and the YI (Yellowness Index) was measured.
- the isocyanate compositions of Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-17 were stored in an air atmosphere at a temperature of 25°C for one year, and then visually checked for the occurrence of a white clouding phenomenon.
- the isocyanate compositions manufactured in Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-17 were filled with nitrogen (nitrogen filling amount: 100%) and stored at 25°C for 7 days. APHA was then measured under the following measurement conditions according to the method of ASTM D1209 using Ultrascan Pro from HunterLab.
- a smaller APHA value indicates better discoloration resistance.
- the isocyanate compositions manufactured in Examples 1-1 to 1-5 and Comparative Examples 1-1 to 1-17 were stored at 25°C for 1 year by filling with nitrogen (nitrogen filling amount: 100%), and then analyzed using a gel permeation chromatography UV detector under the following conditions.
- polystyrene standard foams with molecular weights of 104–24,600 g/mol were used.
- a peak corresponding to XDI appears at a retention time of 24.3 minutes, and a peak indicating high molecular weight (hereinafter referred to as “high molecular weight peak”) appears in the range of retention times of 15 to 17 minutes.
- the retention time at the highest peak of the high molecular weight peak was 16.3 minutes.
- the area ratio of the high molecular weight peak appearing in the range of retention times of 15 to 17 minutes was calculated and expressed as a percentage (area%). Meanwhile, the peak area was obtained through integration.
- the polymerization composition manufactured above was filtered through a 1 ⁇ m PTFE filter and then injected into a mold made of a glass mold and a tape. This mold was placed in an oven, and the temperature was gradually increased from 10°C to 120°C, and a polymerization reaction was performed for 20 hours. After polymerization was completed, the mold was taken out from the oven and released to obtain a plastic lens. The obtained lens was annealed at 120°C for 6 hours.
- the isocyanate compositions of Examples 1-1 to 1-5 did not exhibit cloudiness or discoloration, and at the same time, the area ratio of the 16th-minute peak corresponding to the high molecular weight was 0.5% or less. From this, it can be confirmed that the content of the high molecular weight polymer that self-polymerizes under 25°C conditions is small due to the improvement in long-term storage stability. In addition, the storage stability and lens YI also showed improved effects compared to Comparative Examples 1-1 to 1-17.
- the isocyanate compositions manufactured in Examples 2-1 to 2-4 and Comparative Examples 2-1 to 2-6 were stored at a temperature of 25°C for 24 weeks by filling with nitrogen (nitrogen filling amount: 100%), and the viscosity and APHA characteristics were evaluated by the following methods.
- Viscosity was measured by placing 10 ml of the isocyanate composition to be measured in a viscosity measuring device (DV1 Viscometer, Brookfield) at 25°C and a rotation speed of 5 rpm.
- DV1 Viscometer Brookfield
- the viscosity was measured using the same method as above, and this was referred to as the initial viscosity. As a result of the measurement, the initial viscosity was 550 cps.
- the viscosity increase rate was calculated according to the following mathematical formula 1.
- Viscosity increase rate (%) [(Viscosity after 24 weeks - Initial viscosity) / Initial viscosity] x 100
- the initial viscosity is the viscosity of the diisocyanate compound used in the manufacture of the isocyanate composition, measured under the conditions of 25°C and 5 rpm.
- the viscosity after 24 weeks is the viscosity measured under the conditions of 25°C and 5 rpm after storing the isocyanate composition for 24 weeks by filling it with nitrogen (nitrogen filling amount: 100%) at 25°C.
- APHA measurements were performed using HunterLab's Ultrascan Pro according to the ASTM D1209 method under the following measurement conditions.
- containers containing the isocyanate compositions manufactured in Examples 2-1 to 2-4 and Comparative Examples 2-1 to 2-6 were filled with nitrogen (nitrogen filling amount: 100%), stored at a temperature of 25°C for 24 weeks, and APHA was measured under the following measurement conditions according to the method of ASTM D1209, and this was referred to as ‘APHA after 24 weeks.’
- APHA was measured using the same method as above, and this was referred to as ‘initial APHA.’ As a result of the measurement, the initial APHA was 14.
- the increase rate of APHA was calculated according to the following mathematical formula 2.
- APHA growth rate (%) [(APHA after 24 weeks - initial APHA) / initial APHA] x 100
- the initial APHA is the APHA measured according to ASTM D1209 for the diisocyanate compound used in the preparation of the isocyanate composition
- APHA after 24 weeks is the APHA of the isocyanate composition measured according to ASTM D1209 after storing the isocyanate composition at 25°C for 24 weeks by filling it with nitrogen (100% nitrogen filling amount).
- a smaller APHA value indicates better discoloration resistance, and a smaller APHA increase rate indicates better stability.
- the isocyanate compositions of Examples 2-1 to 2-4 showed lower viscosity increase rates and APHA increase rates compared to the comparative examples, and it was confirmed that they had excellent stability.
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Abstract
Description
| 산화방지제 종류 | 산화방지제 투입량 (제1산화방지제/제2산화방지제, m-XDI 총 중량 기준, ppm) |
|
| 실시예 1-1 | IRGANOX 1076 / IRGAFOS 168 | 25/25 |
| 실시예 1-2 | IRGANOX 1076 / IRGAFOS 168 | 50/50 |
| 실시예 1-3 | IRGANOX 1076 / IRGAFOS 168 | 40/10 |
| 실시예 1-4 | IRGANOX 1010 / IRGAFOS 168 | 25/25 |
| 실시예 1-5 | IRGANOX 1010 / IRGAFOS 168 | 40/10 |
| 비교예 1-1 | - | 0 |
| 비교예 1-2 | IRGANOX 1076 | 50 |
| 비교예 1-3 | IRGANOX 1010 | 50 |
| 비교예 1-4 | BHT | 50 |
| 비교예 1-5 | IRGANOX 1135 | 50 |
| 비교예 1-6 | LOWINOX TBM-6 | 50 |
| 비교예 1-7 | IRGAFOS 168 | 50 |
| 비교예 1-8 | TPP | 50 |
| 비교예 1-9 | IRGANOX 1010 / TPP | 25/25 |
| 비교예 1-10 | IRGANOX 1076 / TPP | 25/25 |
| 비교예 1-11 | IRGANOX 1010 / IRGANOX OPH | 25/25 |
| 비교예 1-12 | IRGANOX 1135 / TBP | 25/25 |
| 비교예 1-13 | BHT / TBP | 25/25 |
| 비교예 1-14 | Propyl gallate | 50 |
| 비교예 1-15 | Butylated hydroxyanisole | 50 |
| 비교예 1-16 | 4-tert-butylprocatechol | 50 |
| 비교예 1-17 | 4-Methoxyphenol | 50 |
| 산화방지제 종류 | 산화방지제 투입량 (제1산화방지제/제2산화방지제, XDI 부가물 총 중량 기준, ppm) |
|
| 실시예 2-1 | IRGANOX 1076 / SUMILIZER GP | 500/500 |
| 실시예 2-2 | IRGANOX 1076 / SUMILIZER GP | 1500/1500 |
| 실시예 2-3 | IRGANOX 1076 / SUMILIZER GP | 1000/500 |
| 실시예 2-4 | IRGANOX 1010 / IRGAFOS 168 | 500/500 |
| 비교예 2-1 | - | 0 |
| 비교예 2-2 | BHT | 1000 |
| 비교예 2-3 | IRGANOX 1076 | 1000 |
| 비교예 2-4 | SUMILIZER GP | 1000 |
| 비교예 2-5 | LOWINOX TBM-6 | 1000 |
| 비교예 2-6 | BHT/ SUMILIZER GP | 500/500 |
| 25℃, 7일 보관 후, APHA | 25℃, 1년 보관 후, APHA | 25℃, 1년 보관 후, 백탁 여부 | 고분자량 피크의 면적비 (면적%) |
렌즈 YI | |
| 실시예 1-1 | 7 | 15 | X | 0.19 | 1.61 |
| 실시예 1-2 | 8 | 13 | X | 0.003 | 1.56 |
| 실시예 1-3 | 8 | 12 | X | 0.08 | 1.58 |
| 실시예 1-4 | 7 | 12 | X | 0.36 | 1.61 |
| 실시예 1-5 | 7 | 11 | X | 0.12 | 1.60 |
| 비교예 1-1 | 9 | 70 | Δ | 5.36 | 1.81 |
| 비교예 1-2 | 8 | 15 | X | 0.59 | 1.73 |
| 비교예 1-3 | 8 | 15 | X | 0.80 | 1.73 |
| 비교예 1-4 | 13 | - | O | 4.97 | 1.68 |
| 비교예 1-5 | 9 | - | O | 7.69 | 1.72 |
| 비교예 1-6 | 10 | 27 | X | 0.52 | 1.75 |
| 비교예 1-7 | 8 | - | O | 7.16 | 1.77 |
| 비교예 1-8 | 9 | - | O | 8.78 | 1.78 |
| 비교예 1-9 | 8 | - | O | 4.50 | 1.64 |
| 비교예 1-10 | 11 | - | O | 3.18 | 1.66 |
| 비교예 1-11 | 10 | - | O | 6.47 | 1.89 |
| 비교예 1-12 | 12 | - | O | 8.11 | 1.75 |
| 비교예 1-13 | 16 | - | O | 9.21 | 1.65 |
| 비교예 1-14 | 62 | - | - | - | - |
| 비교예 1-15 | 50 | - | - | - | - |
| 비교예 1-16 | 85 | - | - | - | - |
| 비교예 1-17 | 31 | - | - | - | - |
| 24주 후 점도 (cps) |
24주 후 APHA | 점도 증가율 (%) |
APHA 증가율 (%) |
|
| 실시예 2-1 | 700 | 18 | 27 | 29 |
| 실시예 2-2 | 750 | 20 | 36 | 43 |
| 실시예 2-3 | 650 | 19 | 18 | 36 |
| 실시예 2-4 | 800 | 19 | 45 | 36 |
| 비교예 2-1 | 1150 | 120 | 109 | 757 |
| 비교예 2-2 | 750 | 30 | 36 | 114 |
| 비교예 2-3 | 750 | 23 | 36 | 64 |
| 비교예 2-4 | 900 | 27 | 64 | 93 |
| 비교예 2-5 | 950 | 80 | 73 | 471 |
| 비교예 2-6 | 840 | 29 | 53 | 107 |
Claims (22)
- 디이소시아네이트 및 그 부가물 중 1 이상의 디이소시아네이트계 화합물;하기 화학식 1로 표시되는 페놀계 제1산화방지제;하기 화학식 2로 표시되는 인계 제2산화방지제;를 포함하는, 이소시아네이트 조성물:[화학식 1]상기 화학식 1에서,Ra는 C1 내지 C20의 알킬렌기이고,m은 0 내지 3의 정수이며,[화학식 2]상기 화학식 2에서,L은 C1 내지 C20의 알킬렌기이고,R1은 수소; C1 내지 C20의 알킬기; 또는 히드록시기 및 C1 내지 C20의 알킬기 중 1 이상의 치환기로 치환되거나 또는 비치환된 C6 내지 C30의 아릴기이며,R2 및 R3은 각각 독립적으로 수소 또는 C1 내지 C6의 알킬기이거나, 또는 서로 연결되어 헤테로 고리 구조를 형성하고,n은 0 또는 1의 정수이다.
- 제1항에 있어서,상기 페놀계 제1산화방지제는, 디이소시아네이트계 화합물 총 중량 기준 10 내지 3000ppm으로 포함되는,이소시아네이트 조성물.
- 제1항에 있어서,상기 페놀계 제1산화방지제는, 옥타데실-3-[3,5-디-tert-부틸-4-히드록시페닐]프로피오네이트, 벤젠프로피온산, 3,5-비스(1,1-디메틸-에틸)-4-히드록시-C7-C9 분지형 알킬 에스테르, 펜타에리쓰리톨 테트라키스(3-3,5-디-tert-부틸-4-히드록시페닐)프로피오네이트, 또는 이들의 혼합물을 포함하는,이소시아네이트 조성물.
- 제1항에 있어서,상기 인계 제2산화방지제는, 디이소시아네이트계 화합물 총 중량 기준 10 내지 3000ppm으로 포함되는,이소시아네이트 조성물.
- 제1항에 있어서,상기 인계 제2산화방지제는 하기 화학식 3 또는 화학식 4로 표시되는 화합물인,이소시아네이트 조성물.[화학식 3]상기 화학식 3에서,R11은 수소; C1 내지 C12의 알킬기; 또는 히드록시기 및 C1 내지 C6의 알킬기 중 1 이상의 치환기로 치환되거나 또는 비치환된 C6 내지 C18의 아릴기이고,R12 및 R13은 각각 독립적으로 수소 또는 C1 내지 C6의 알킬기이며,[화학식 4]상기 화학식 4에서,L1은 C1 내지 C20의 알킬렌기이고,R21 내지 R25는 각각 독립적으로 수소, 히드록시기, 또는 C1 내지 C12의 알킬기이며,n1은 0 또는 1의 정수이다.
- 제1항에 있어서,상기 인계 제2산화방지제는, 트리스(2,4-디-tert-부틸페닐)포스파이트, 2-(tert-부틸)-6-메틸-4-(3-((2,4,8,10)-테트라키스(tert-부틸)디벤조[d,f][1,3,2]디옥사포스페핀-6-일)옥시)프로필)페놀, 또는 이들의 혼합물을 포함하는,이소시아네이트 조성물.
- 제1항에 있어서,상기 페놀계 제1산화방지제와 인계 제2산화방지제는 1:1 내지 5:1의 중량비로 포함되는,이소시아네이트 조성물.
- 제1항에 있어서,상기 이소시아네이트 조성물 내 디이소시아네이트계 화합물 총 중량을 기준으로, 상기 페놀계 제1산화방지제와 인계 제2산화방지제의 합계 중량이 20 내지 4000ppm인,이소시아네이트 조성물.
- 제1항에 있어서,상기 디이소시아네이트는, 파라페닐렌 디이소시아네이트, 톨릴렌 디이소시아네이트, 나프탈렌 디이소시아네이트, 4,4'-디페닐메탄 디이소시아네이트, 2,4'-디페닐메탄 디이소시아네이트, 톨리딘 디이소시아네이트, 테트라메틸렌 디이소시아네이트, 헥사메틸렌 디이소시아네이트, 트리메틸헥사메틸렌 디이소시아네이트, 라이신 디이소시아네이트, 노보네인 디이소시아네이트, 옥타데실 디이소시아네이트, 트랜스시클로헥산-1,4-디이소시아네이트, 이소포론 디이소시아네이트, 디시클로헥실메탄 디이소시아네이트, 자일릴렌 디이소시아네이트, 수소첨가 자일릴렌 디이소시아네이트, 테트라메틸자일릴렌 디이소시아네이트 또는 이들의 변성 이소시아네이트인,이소시아네이트 조성물.
- 제1항에 있어서,상기 디이소시아네이트의 부가물은, 폴리이소시아네이트 올리고머, 자일릴렌 디이소시아네이트-트리메틸올프로판 부가물, 자일릴렌 디이소시아네이트-글리세린 부가물, 톨릴렌 디이소시아네이트-트리메틸올프로판 부가물, 톨릴렌 디이소시아네이트-글리세린 부가물, 테트라메틸자일릴렌 디이소시아네이트-트리메틸올프로판 부가물, 테트라메틸자일릴렌 디이소시아네이트-글리세린 부가물, 수소첨가 자일릴렌 디이소시아네이트-트리메틸올프로판 부가물, 수소첨가 자일릴렌 이소시아네이트-글리세린 부가물, 헥사메틸렌 디이소시아네이트-트리메틸올프로판 부가물, 헥사메틸렌 디이소시아네이트-글리세린 부가물, 이소포론 디이소시아네이트-트리메틸올프로판 부가물, 또는 이소포론 디이소시아네이트- 글리세린 부가물인,이소시아네이트 조성물.
- 제11항에 있어서,상기 페놀계 제1산화방지제 및 인계 제2산화방지제는, 디이소시아네이트계 화합물 총 중량 기준, 각각 10 내지 500ppm으로 포함되는,이소시아네이트 조성물.
- 제1항에 있어서,상기 이소시아네이트 조성물은,디이소시아네이트계 화합물로서, 자일릴렌 디이소시아네이트-트리메틸올프로판 부가물;상기 화학식 1로 표시되는 페놀계 제1산화방지제; 그리고인계 제2산화방지제로서, 하기 화학식 3으로 표시되는 화합물 및 하기 화학식 4로 표시되는 화합물 중 1종 이상을 포함하는,이소시아네이트 조성물:[화학식 3]상기 화학식 3에서,R11은 수소; C1 내지 C12의 알킬기; 또는 히드록시기 및 C1 내지 C6의 알킬기 중 1 이상의 치환기로 치환되거나 또는 비치환된 C6 내지 C18의 아릴기이고,R12 및 R13은 각각 독립적으로 수소 또는 C1 내지 C6의 알킬기이고,[화학식 4]상기 화학식 4에서,L1은 C1 내지 C20의 알킬렌기이고,R21 내지 R25는 각각 독립적으로 수소, 히드록시기, 또는 C1 내지 C12의 알킬기이며,n1은 0 또는 1의 정수이다.
- 제13항에 있어서,상기 페놀계 제1산화방지제 및 인계 제2산화방지제는, 디이소시아네이트계 화합물 총 중량 기준, 각각 500 내지 1500ppm으로 포함되는,이소시아네이트 조성물.
- 제1항에 있어서,상기 이소시아네이트 조성물은 하기 (i) 및 (ii)의 조건 중 1개 이상을 만족하는 이소시아네이트 조성물:(i) 이소시아네이트 조성물을 질소 충진하여 25℃에서 7일간 보관한 후, ASTM D1209에 따라 측정한 APHA값: 10 이하;(ii) 이소시아네이트 조성물을 질소 충진하여 25℃에서 24주간 보관한 후, ASTM D1209에 따라 측정한 APHA값: 25 이하.
- 제1항에 있어서,상기 이소시아네이트 조성물은 디이소시아네이트계 화합물로서 디이소시아네이트를 포함하며, 하기 (a1) 및 (a2)의 조건을 만족하는 이소시아네이트 조성물:(a1) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 1년간 보관한 후, 겔 투과 크로마토그래피로 분석하여 수득한, 머무름 시간(min)을 X축으로, 검출기의 감응도를 Y축으로 하는 그래프에서, 머무름 시간 15분 내지 17분의 범위에 위치하는 피크의 면적이 전체 피크 면적의 0.5 면적% 이하,(a2) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 1년 동안 보관한 후 ASTM D1209의 방법에 따라 측정한 APHA가 20 이하.
- 제16항에 있어서,상기 이소시아네이트 조성물을 질소 충진 하여 25℃에서 7일간 보관한 후 ASTM D1209에 따라 측정한 APHA값이 10 이하인,이소시아네이트 조성물.
- 제1항에 있어서,상기 이소시아네이트 조성물은 디이소시아네이트계 화합물로서 디이소시아네이트의 부가물을 포함하며, 하기 (b1) 내지 (b4)의 조건을 만족하는,이소시아네이트 조성물:(b1) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주 동안 보관한 후 측정한 점도: 500 내지 1000cps(b2) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주간 보관한 후 ASTM D1209에 따라 측정한 APHA값: 20 이하(b3) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주 동안 보관 후, 하기 수학식 1에 따라 계산한 점도 증가율: 50% 이하(b4) 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주 동안 보관 후, 하기 수학식 2에 따라 계산된 APHA 증가율: 50% 이하[수학식 1]점도 증가율 = [(24주 후 점도 - 초기 점도) / 초기 점도] x 100상기 수학식 1에서,초기 점도는 25℃ 및 분당 회전수 5rpm의 조건에서 측정한 디이소시아네이트계 화합물의 점도이고,24주 후 점도는 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주 동안 보관 후, 25℃ 및 분당 회전수 5rpm의 조건에서 측정한 이소시아네이트 조성물의 점도이다[수학식 2]APHA 증가율 = [(24주 후 APHA - 초기 APHA) / 초기 APHA] x 100상기 수학식 2에서,초기 APHA는 ASTM D1209에 따라 측정한 디이소시아네이트계 화합물의 APHA이고,24주 후 APHA는 이소시아네이트 조성물을 질소 충진 하여 25℃에서 24주 동안 보관 후, ASTM D1209에 따라 측정한 이소시아네이트 조성물의 APHA이다.
- 제1항에 따른 이소시아네이트 조성물; 및다관능 싸이올계 화합물, 다관능 알코올계 화합물 및 다관능 에피설파이드계 화합물 중 어느 하나 이상;을 포함하는,중합용 조성물.
- 제1항에 따른 이소시아네이트 조성물;과 다관능 싸이올계 화합물, 다관능 알코올계 화합물 및 다관능 에피설파이드계 화합물 중 어느 하나 이상;이 중합된 중합체를 포함하는, 물품.
- 제20항에 있어서,상기 물품은 광학용 점착제, 광학용 접착제, 또는 광학 렌즈인, 물품.
- 제21항에 있어서,상기 광학 렌즈는 ASTM E313에 따른 측정시 YI 값이 2 이하인, 물품.
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| JP2005170793A (ja) * | 2003-11-19 | 2005-06-30 | Mitsui Takeda Chemicals Inc | 有機ポリイソシアネート組成物 |
| JP2005298365A (ja) * | 2004-04-07 | 2005-10-27 | Mitsui Takeda Chemicals Inc | 有機ポリイソシアネート組成物 |
| KR101935032B1 (ko) * | 2017-10-16 | 2019-01-03 | 에스케이씨 주식회사 | 저장 안정성이 개선된 이소시아네이트계 조성물, 및 이를 포함하는 플라스틱 렌즈용 중합성 조성물 |
| KR20210023483A (ko) * | 2019-08-23 | 2021-03-04 | 한화솔루션 주식회사 | 폴리이소시아네이트 조성물의 제조방법 |
| KR20210151127A (ko) * | 2019-05-16 | 2021-12-13 | 미라클 케미컬스 씨오., 엘티디. | 내황변 열가소성 폴리우레탄 발포재료 및 이의 제조 방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005170793A (ja) * | 2003-11-19 | 2005-06-30 | Mitsui Takeda Chemicals Inc | 有機ポリイソシアネート組成物 |
| JP2005298365A (ja) * | 2004-04-07 | 2005-10-27 | Mitsui Takeda Chemicals Inc | 有機ポリイソシアネート組成物 |
| KR101935032B1 (ko) * | 2017-10-16 | 2019-01-03 | 에스케이씨 주식회사 | 저장 안정성이 개선된 이소시아네이트계 조성물, 및 이를 포함하는 플라스틱 렌즈용 중합성 조성물 |
| KR20210151127A (ko) * | 2019-05-16 | 2021-12-13 | 미라클 케미컬스 씨오., 엘티디. | 내황변 열가소성 폴리우레탄 발포재료 및 이의 제조 방법 |
| KR20210023483A (ko) * | 2019-08-23 | 2021-03-04 | 한화솔루션 주식회사 | 폴리이소시아네이트 조성물의 제조방법 |
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