WO2022145466A1 - 光造形物用接着性組成物 - Google Patents
光造形物用接着性組成物 Download PDFInfo
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- WO2022145466A1 WO2022145466A1 PCT/JP2021/048912 JP2021048912W WO2022145466A1 WO 2022145466 A1 WO2022145466 A1 WO 2022145466A1 JP 2021048912 W JP2021048912 W JP 2021048912W WO 2022145466 A1 WO2022145466 A1 WO 2022145466A1
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- WIPO (PCT)
- Prior art keywords
- meth
- adhesive composition
- polymerizable monomer
- acrylate
- stereolithography
- Prior art date
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- 239000000853 adhesive Substances 0.000 title claims abstract description 140
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 140
- 239000000203 mixture Substances 0.000 title claims abstract description 133
- 239000000178 monomer Substances 0.000 claims abstract description 143
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 73
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- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003999 initiator Substances 0.000 claims abstract description 25
- 150000001491 aromatic compounds Chemical class 0.000 claims abstract description 16
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- 239000000463 material Substances 0.000 claims description 44
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 24
- 238000009835 boiling Methods 0.000 claims description 19
- 125000003118 aryl group Chemical group 0.000 claims description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 208000019116 sleep disease Diseases 0.000 claims description 13
- 208000020685 sleep-wake disease Diseases 0.000 claims description 13
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- 230000002378 acidificating effect Effects 0.000 claims description 5
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- 125000003277 amino group Chemical group 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
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- RNPRWBJACGBYCX-UHFFFAOYSA-N C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.NOC(=O)C(CO)CO.NOC(=O)C(CO)CO Chemical compound C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.C(C(=C)C)(=O)O.NOC(=O)C(CO)CO.NOC(=O)C(CO)CO RNPRWBJACGBYCX-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 11
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001483 poly(ethyl methacrylate) polymer Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001955 polyphenylene ether Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- SCUZVMOVTVSBLE-UHFFFAOYSA-N prop-2-enenitrile;styrene Chemical compound C=CC#N.C=CC1=CC=CC=C1 SCUZVMOVTVSBLE-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 125000004309 pyranyl group Chemical group O1C(C=CC=C1)* 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 229940072690 valium Drugs 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/30—Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives
- A61K6/35—Preparations for stabilising dentures in the mouth
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F22/36—Amides or imides
-
- 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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F22/10—Esters
- C08F22/1006—Esters of polyhydric alcohols or polyhydric phenols, e.g. ethylene glycol dimethacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F22/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
- C08F22/10—Esters
- C08F22/12—Esters of phenols or saturated alcohols
- C08F22/22—Esters containing nitrogen
Definitions
- the present invention relates to an adhesive composition for stereolithography. More specifically, the present invention is an adhesive composition for a stereolithographic object having excellent adhesiveness to a stereolithographic object produced by stereolithography, and repairs or linings the stereolithographic object produced by stereolithography. can do. It is particularly suitable for denture base materials, dental occlusal sprints, and lining and restoration of sleep disorder treatment tools.
- a required amount of controlled light energy is supplied to the liquid photocurable resin to cure it into a thin layer, and a liquid photocurable resin is further supplied onto the liquid photocurable resin, which is then irradiated with light under control to form a thin layer.
- Many proposals have been made regarding a method of manufacturing a three-dimensional model by repeating the process of laminating and curing, a so-called optical three-dimensional modeling method.
- an ultraviolet laser controlled by a computer is used on the liquid surface of the liquid photocurable resin composition in a container so as to obtain a desired pattern. It is selectively irradiated and cured to a predetermined thickness to form a cured layer, then one layer of the liquid photocurable resin composition is supplied onto the cured layer, and the same is irradiated with an ultraviolet laser. Then, a method called liquid tank optical modeling is generally adopted, in which a laminating operation of forming a continuous cured layer by curing in the same manner as described above is repeated to produce a three-dimensional model having a final shape. In recent years, this method has attracted a great deal of attention because even if the shape of the three-dimensional model is quite complicated, the target three-dimensional model can be manufactured easily and with high accuracy in a relatively short time. ..
- the three-dimensional model obtained by the stereolithography method has been expanded from a mere concept model to a test model, a prototype, and a final product.
- mouthpiece-shaped sleep disorder treatment tools such as denture bases and treatment tools for preventing dentures and sleep apnea syndrome have different shapes and are complicated for each patient.
- the application of the optical modeling method is expected.
- the denture base material is a material used for the gingival part when a denture is attached due to tooth loss.
- the denture base material is often lined (sometimes referred to as rebase or reline) or repaired due to deformation of the material itself or changes in the patient's ridge.
- a methacrylic acid ester polymer is surface-treated with an adhesive dissolved in an organic solvent such as ethyl acetate or methylene chloride, and then methacrylic acid mainly containing methyl methacrylate is used as the main component.
- a method of applying a mixture of an ester-based monomer and a methacrylic acid ester-based polymer is used, but in fact, this is the only method. Repair of mouthpiece-shaped sleep disorder treatment tools such as bruxism prevention and sleep apnea syndrome treatment tools is also carried out in the same manner.
- the method of producing the denture base material from a mixture of methyl methacrylate (MMA) and polymethyl methacrylate (PMMA) by heat polymerization has been the mainstream.
- the denture base material can also be manufactured by the stereolithography method. In that case, since stereolithography cures instantly with light, it is necessary to use a polymerizable compound with particularly high curability as the denture base material, and a crosslinkable monomer or a monomer exhibiting high cohesive force is used. To. Further, it is not realistic to use MMA because volatile components cannot be used due to the structure of the stereolithography apparatus.
- the denture base material produced by the stereolithography method has a high crosslink density, and the denture base lining material and the denture base lining adhesive do not easily penetrate, so that lining and restoration are difficult. There is.
- a solvent such as methylene chloride or ethyl acetate is used as the adhesive material, and MMA is used as the lining material, and there is a problem that the odor is remarkable.
- the dental adhesive material includes those applied to dentin, those applied to dental composite resins, and other dental prostheses made of metal or ceramics. It is widely known that it applies to. Dental adhesive materials for these uses have excellent affinity for each adherend such as acidic monomers, silane coupling agents, sulfur-containing monomers, and dentin, and form chemical bonds. It is a thing. However, adhesive materials for denture base materials, dental occlusal sprints and sleep disorder treatment tools are completely different from adhesive materials in these applications in terms of technique and mechanism of development of adhesiveness.
- Patent Document 1 As a method for lining a denture base that does not depend on the conventional method, for example, in Patent Document 1, a mixture of monofunctional and polyfunctional (meth) acrylic monomers is solvent-diluted for adhesiveness. Examples of excellent compositions are described. Further, Patent Document 2 describes an example of a photocurable backing material having excellent curability. Further, Patent Document 3 describes an example of a denture base material having excellent strength and toughness for stereolithography.
- Patent Documents 1 and 2 target PMMA-based denture base materials as lining, and there is no description that targets highly cross-linked or stereolithographic objects. Further, Patent Document 3 discloses the denture base itself, and does not describe its use as a denture base lining material and a denture base lining adhesive.
- an object of the present invention is to provide an adhesive composition for a stereolithographic object, which has excellent adhesiveness to a stereolithographic object produced by stereolithography. It is particularly suitable for denture base materials, dental occlusal sprints, and lining and lining adhesives for sleep disorder treatment tools.
- An adhesive composition for a stereolithographic object containing a polyfunctional (meth) acrylic polymerizable monomer (A) and a photopolymerization initiator (B).
- the polyfunctional (meth) acrylic polymerizable monomer (A) is a urethanized (meth) acrylic acid ester compound (a-1) or an aromatic compound-based (meth) that does not contain a urethane bond.
- Adhesive composition is a urethanized (meth) acrylic acid ester compound (a-1) or an aromatic compound-based (meth) that does not contain a urethane bond.
- Adhesive composition Adhesive composition.
- the aromatic compound-based (meth) acrylic acid ester compound (a-2) containing no urethane bond is at least one selected from the group consisting of a hydroxyl group, a primary amino group, and a secondary amino group.
- the polymerizable monomer (a-3) containing the (meth) acrylamide group contains at least one selected from the group consisting of a primary amide bond and a secondary amide bond [2].
- the urethanized (meth) acrylic acid ester compound (a-1) contains 2,2,4-trimethylhexamethylenebis (2-carbamoyloxyethyl) dimethacrylate and N, N'-(2,2). , 4-trimethylhexamethylene) bis [2- (aminocarboxy) propane-1,3-diol] Containing at least one selected from the group consisting of tetramethacrylate, the adhesiveness for an optical model according to [5].
- Composition. [7] The adhesive composition for stereolithography according to any one of [1] to [6], further containing a monofunctional (meth) acrylic polymerizable monomer (C).
- a denture base lining material comprising the adhesive composition for stereolithography according to any one of [1] to [10].
- An adhesive material for denture base lining which comprises the adhesive composition for stereolithography according to any one of [1] to [10].
- a restoration material for a sleep disorder therapeutic tool comprising a model of the adhesive composition for a stereolithographic object according to any one of [1] to [10].
- an adhesive composition for a stereolithographic object having excellent adhesiveness to a stereolithographic object (hereinafter, also referred to as "stereolithographic object") produced by stereolithography.
- the adhesive composition for a stereolithographic object of the present invention easily penetrates into a stereolithographic object having a high crosslink density, the stereolithographic object can be repaired or lined. In particular, it can be suitably used for denture base materials, dental occlusal sprints, and lining of sleep disorder treatment tools. Further, the adhesive composition for stereolithography of the present invention has little odor and is less likely to generate an unpleasant odor.
- the adhesive composition for stereolithography of the present invention contains a polyfunctional (meth) acrylic polymerizable monomer (A) and a photopolymerization initiator (B).
- A polyfunctional acrylic polymerizable monomer
- B photopolymerization initiator
- the upper limit value and the lower limit value of the numerical range can be appropriately combined. Further, in the present specification, the numerical values of the respective symbols in the formula can be appropriately combined.
- the polyfunctional (meth) acrylic polymerizable monomer (A) is used in the adhesive composition for stereolithography of the present invention in order to impart excellent adhesiveness to the stereolithography. Since curability contributes particularly strongly to the development of excellent adhesiveness, the polyfunctional (meth) acrylic polymerizable monomer (A) is a (meth) acrylic polymerizable group ((meth) acryloyl). It is necessary that one molecule contains two or more oxy groups and (meth) acrylamide groups).
- Aromatic compound system that does not contain urethanized (meth) acrylic acid ester compound (a-1) or urethane bond from the viewpoint of exhibiting particularly high curability and easily obtaining excellent adhesiveness to photoengraved products. It is preferable to contain at least one of the (meth) acrylic acid ester compound (a-2) and the polymerizable monomer (a-3) containing a (meth) acrylamide group.
- the polyfunctional (meth) acrylic polymerizable monomer (A) may be used alone or in combination of two or more.
- the aromatic compound-based (meth) acrylic acid ester compound (a-2), which does not contain a urethane bond, is a hydroxyl group and a primary amino from the viewpoint that excellent adhesiveness to an optical model can be easily obtained. It is more preferable to contain at least one selected from the group consisting of a group and a secondary amino group.
- the polymerizable monomer (a-3) containing a (meth) acrylamide group is a group consisting of a primary amide bond and a secondary amide bond from the viewpoint that excellent adhesiveness to a stereolithographic product can be easily obtained. It is more preferable to contain at least one selected from the above.
- (meth) acrylic is used to include both methacrylic and acrylic, and similar notations such as "(meth) acryloyl” and "(meth) acrylate”. The same applies to.
- the (meth) acrylate system is used in the sense of including (meth) acrylic acid ester and (meth) acrylamide.
- the urethanized (meth) acrylic acid ester compound (a-1) can be easily obtained by subjecting, for example, an isocyanate-containing compound containing an alkylene skeleton and a phenylene skeleton to an addition reaction with a (meth) acrylate compound having a hydroxyl group. Can be synthesized into.
- the weight average molecular weight is preferably 1000 or less from the viewpoint that the viscosity is low, the coating is easy, and the permeability to the stereolithographic object is easily obtained.
- the urethanized (meth) acrylic acid ester compound (a-1) does not contain a polymer structure, the molecular weight is applied because there is no concept of weight average molecular weight.
- the weight average molecular weight exceeds 1000, the adhesive composition for stereolithography tends to have a high viscosity and a decrease in permeability.
- the weight average molecular weight is more preferably 750 or less, and further preferably 500 or less.
- the urethanized (meth) acrylic acid ester compound (a-1) is preferably a compound that does not contain a polymer structure such as polyester, polycarbonate, polyurethane, or polyether, and contains these structures.
- the adhesiveness tends to decrease in the presence of water such as in the oral cavity.
- the number of urethane bonds is more preferably 3 or less in one molecule, and further preferably 2 or less, from the viewpoint of adhesiveness in the presence of water.
- the weight average molecular weight referred to here means a polystyrene-equivalent weight average molecular weight determined by gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- the urethanized (meth) acrylic acid ester compound (a-1) one type may be used alone, or two or more types may be used in combination.
- Examples of the compound having an isocyanate group include methylene diisocyanate (MDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), trimethylhexamethylene diisocyanate (TMHMDI), tricyclodecane diisocyanate (TCDDI), and adamantan diisocyanate (ADI). , Tolylene diisocyanate (TDI), xylylene diisocyanate (XDI), diphenylmethane diisocyanate (MDI) and the like.
- HDI, IPDI, TMHMDI, and TCDDI are preferable, and IPDI and TMHMDI are more preferable, from the viewpoint that the adhesive composition for stereolithography of the present invention has excellent adhesiveness to stereolithography.
- Examples of the (meth) acrylate compound having a hydroxyl group include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, and 6-hydroxyhexyl (meth) acrylate, 10 -Hydroxydecyl (meth) acrylate, 3-chloro-2-hydroxypropyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate, glycerin mono (meth) acrylate, 2-hydroxy-3-acryloyloxypropyl (Meta) Acrylate, 2,2-bis [4- [3- (meth) acryloyloxy-2-hydroxypropoxy] phenyl] Propane, 1,2-bis [3- (meth) acryloyloxy-2-hydroxypropoxy] Examples thereof include hydroxy (meth) acrylate compounds such as ethane, pentaerythritol tri (meth)
- 2-hydroxyethyl (meth) acrylate 2-hydroxypropyl (meth) acrylate, 2 -Hydroxy-3-acryloyloxypropyl (meth) acrylate is preferable, and 2-hydroxyethyl (meth) acrylate is more preferable.
- the addition reaction between the compound having an isocyanate group and the (meth) acrylate compound having a hydroxyl group can be carried out according to a known method, and is not particularly limited.
- urethanized (meth) acrylic acid ester compounds that do not contain a polymer structure are 2,2,4-trimethylhexamethylenebis (2-carbamoyloxyethyl) dimethacrylate (commonly known as UDMA) and 2,4-tolylenebis (commonly known as UDMA).
- UDMA 2,2,4-trimethylhexamethylenebis (2-carbamoyloxyethyl) dimethacrylate
- UDMA 2,4-tolylenebis
- 2,2,4-trimethylhexamethylenebis (2-carbamoyloxyethyl) dimethacrylate, N, N'-(2,2,4-trimethylhexamethylene) bis from the viewpoint of adhesiveness to photoengraved products.
- [2- (Aminocarboxy) Propane-1,3-diol] Tetramethacrylate is preferable, and 2,2,4-trimethylhexamethylenebis (2-carbamoyloxyethyl) dimethacrylate is more preferable.
- the adhesive composition for an optical model of the present invention contains a urethanized (meth) acrylic acid ester compound (a-1), it contains a monofunctional (meth) acrylic polymerizable monomer (C).
- the content of the urethanized (meth) acrylic acid ester compound (a-1) in the adhesive composition for an optical model of the present invention is 10 in 100 parts by mass of the total amount of the polymerizable monomer. It is preferably 30 to 100 parts by mass, more preferably 50 to 100 parts by mass, and further preferably 50 to 100 parts by mass, from the viewpoint of being more excellent in adhesiveness to an optical model.
- the content of the urethanized (meth) acrylic acid ester compound (a-1) is the total amount of the polymerizable monomer. In 100 parts by mass, it is preferably 10 to 98 parts by mass, more preferably 30 to 90 parts by mass, and even more preferably 50 to 80 parts by mass. Further, in a certain embodiment (for example, an embodiment not containing the monofunctional (meth) acrylic polymerizable monomer (C)), the esterified (meth) acrylic acid in the adhesive composition for stereolithography is obtained.
- the content of the ester compound (a-1) is preferably 40 to 99.9% by mass in the total amount of the adhesive composition for stereolithography, and 55 to 5 to 9 from the viewpoint of being more excellent in adhesiveness to the stereolithography. It is more preferably 99.5% by mass, and even more preferably 60 to 99% by mass.
- a urethanized (meth) acrylic acid ester in an adhesive composition for stereolithography is preferably 40 to 98% by mass in the total amount of the adhesive composition for stereolithography, and 45 to 90% by mass from the viewpoint of being more excellent in adhesiveness to the stereolithography. Is more preferable, and 55 to 85% by mass is further preferable.
- Aromatic compound-based (meth) acrylic acid ester compound (a-2) that does not contain urethane bonds examples include 2,2-bis ((meth) acryloyloxyphenyl) propane and 2,2-bis [4- (3).
- the adhesive composition for an optical model of the present invention contains an aromatic compound-based (meth) acrylic acid ester compound (a-2) that does not contain a urethane bond
- the adhesive composition for an optical model of the present invention contains an aromatic compound-based (meth) acrylic acid ester compound (a-2) that does not contain a urethane bond
- the content of the aromatic compound-based (meth) acrylic acid ester compound (a-2) containing no urethane bond in the above is preferably 5 to 90 parts by mass based on 100 parts by mass of the total amount of the polymerizable monomer. It is more preferably 10 to 80 parts by mass, and even more preferably 20 to 70 parts by mass, from the viewpoint of being more excellent in adhesiveness to an optical model.
- an aromatic that does not contain a urethane bond in the adhesive composition for an optical model an aromatic that does not contain a urethane bond in the adhesive composition for an optical model.
- the content of the compound-based (meth) acrylic acid ester compound (a-2) is preferably 40 to 99.9% by mass with respect to the total amount of the adhesive composition for a photo-shaped product, and the adhesive to the photo-shaped product is adhered to. From the viewpoint of being more excellent in properties, it is more preferably 55 to 99.5% by mass, and even more preferably 60 to 99% by mass.
- an aromatic compound that does not contain an ester bond in an adhesive composition for a photoengraving is preferably 40 to 98% by mass in the total amount of the adhesive composition for an optical model, and is more excellent in the adhesiveness to the optical model. From the point of view, it is more preferably 45 to 90% by mass, and further preferably 55 to 85% by mass.
- Polymerizable monomer containing (meth) acrylamide group (a-3) examples include N, N'-ethylenebis (meth) acrylamide, N, N'-propylenelenbis (meth) acrylamide, N, N'.
- -(Meta) acrylamide-based polymerizable monomers such as butylenebis (meth) acrylamide, N, N'-hexamethylenebis (meth) acrylamide; 2- (meth) acryloyloxyethyl (meth) acrylamide, 2- (meth) It has one (meth) acrylamide group such as acryloyloxypropyl (meth) acrylamide, 2- (meth) acryloyloxybutyl (meth) acrylamide, 2- (meth) acryloyloxyhexyl (meth) acrylamide, and (meth) acryloyl. Examples thereof include a polymerizable monomer having one oxy group.
- the polymerizable monomer having one (meth) acrylamide group and one (meth) acryloyloxy group may be an asymmetric acrylamide / methacrylic acid ester compound represented by the following general formula (1). good.
- the polymerizable monomer (a-3) containing a (meth) acrylamide group one type may be used alone, or two or more types may be used in combination.
- Z is a linear or branched aliphatic group or aromatic group of C 1 to C 8 which may have a substituent, and the aliphatic group is -O-,-.
- R 1 represents a linear or branched chain aliphatic group of C 1 to C 8 which may have a hydrogen atom or a substituent.
- Z is a site that adjusts the hydrophilicity of the asymmetric acrylamide / methacrylic acid ester compound.
- the aliphatic group C 1 to C 8 which may have a substituent represented by Z is a saturated aliphatic group (alkylene group, cycloalkylene group (for example, 1,4-cyclohexylene group, etc.)).
- An unsaturated aliphatic group alkenylene group, alkynylene group
- a saturated aliphatic group (alkylene group) is preferable from the viewpoint of ease of acquisition or production and chemical stability.
- Z is preferably a linear or branched C1 to C4 aliphatic group which may have a substituent, and is preferably a substituent. It is more preferable that it is a linear or branched C2 to C4 aliphatic group which may have.
- an alkylene group is preferable. Examples of the alkylene group C 1 to C 8 include a methylene group, an ethylene group, an n-propylene group, an isopropylene group, an n-butylene group and the like.
- Examples of the aromatic group which may have a substituent represented by Z include an arylene group and an aromatic heterocyclic group.
- an arylene group is preferable to an aromatic heterocyclic group.
- the heterocycle of an aromatic heterocyclic group is generally unsaturated.
- the aromatic heterocycle is preferably a 5-membered ring or a 6-membered ring.
- a phenylene group is preferable.
- heterocycle of the aromatic heterocyclic group examples include a furan ring, a thiophene ring, a pyrrole ring, an oxazole ring, an isooxazole ring, a thiazole ring, an isothiazole ring, an imidazole ring, a pyrazole ring, a frazane ring, a triazole ring, and a pyran ring.
- examples thereof include a pyridine ring, a pyridazine ring, a pyrimidine ring, a pyrazine ring, and a 1,3,5-triazine ring.
- aromatic groups a phenylene group is particularly preferable.
- the aliphatic group in R 1 may be either a saturated aliphatic group (alkyl group) or an unsaturated aliphatic group (alkenyl group, alkynyl group), and is easy to obtain or produce and has chemical stability. From the viewpoint, a saturated aliphatic group (alkyl group) is preferable.
- alkyl group in R 1 include linear or branched alkyl groups C 1 to C 6 , preferably linear alkyl groups C 1 to C 3 , and more preferably a methyl group or an ethyl group. Preferably, a methyl group is even more preferred.
- the polymerizable monomer (a-3) containing a (meth) acrylamide group 2- (meth) acryloyloxyethyl (meth) acrylamide is preferable from the viewpoint of excellent adhesiveness to a stereolithographic product. , 2-methacryloyloxyethyl acrylamide is more preferred.
- the content of the (meth) acrylamide group-containing polymerizable monomer (a-3) in the adhesive composition for an optical model of the present invention is a monofunctional (meth) acrylic polymerizable monomer (
- the total amount of the polymerizable monomer is preferably 10 to 100 parts by mass, and the total amount is 30 to 100 parts by mass from the viewpoint of excellent adhesion to the photomolded product. It is more preferably present, and even more preferably 50 to 100 parts by mass.
- the content of the polymerizable monomer (a-3) containing the (meth) acrylamide group is the polymerizable single.
- the total amount of the weight is 100 parts by mass, preferably 10 to 98 parts by mass, more preferably 30 to 90 parts by mass, and further preferably 50 to 80 parts by mass.
- the (meth) acrylamide group in the adhesive composition for stereolithography is contained.
- the content of the polymerizable monomer (a-3) to be polymerized is preferably 40 to 99.9% by mass in the total amount of the adhesive composition for stereolithography, and is more excellent in adhesiveness to stereolithography. Therefore, it is more preferably 55 to 99.5% by mass, and even more preferably 60 to 99% by mass.
- the (meth) acrylamide group in the stereolithographic adhesive composition is contained.
- the content of the polymerizable monomer (a-3) is preferably 40 to 98% by mass in the total amount of the adhesive composition for stereolithography, and is superior to the stereolithography from the viewpoint of 45. It is more preferably to 90% by mass, and even more preferably 55 to 85% by mass.
- the acrylate-based polymerizable monomer (a-4)) includes an aliphatic compound-based bifunctional (meth) acrylate-based polymerizable monomer and a trifunctional or higher (meth) acrylate-based polymerization. Examples thereof include sex monomers.
- Examples of the aliphatic compound-based bifunctional (meth) acrylate-based polymerizable monomer include glycerol di (meth) acrylate, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, and triethylene glycol di (meth).
- Examples of the trifunctional or higher (meth) acrylate-based polymerizable monomer include trimethylolpropane tri (meth) acrylate, trimethylolethanetri (meth) acrylate, trimethylolmethanetri (meth) acrylate, and pentaerythritol tri (meth). ) Acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate and the like can be mentioned.
- glycerol di (meth) acrylate and 1,2-bis (3-methacryloyloxy-2-hydroxypropoxy) ethane are preferable because they have excellent adhesiveness to stereolithographic objects.
- the other polyfunctional (meth) acrylate-based polymerizable monomer (a-4) one type may be used alone, or two or more types may be used in combination.
- the adhesive composition for an optotype of the present invention contains another polyfunctional (meth) acrylate-based polymerizable monomer (a-4), a monofunctional (meth) acrylic-based polymerizable single
- the content of the other polyfunctional (meth) acrylate-based polymerizable monomer (a-4) in the adhesive composition for optotypes of the present invention is In the total amount of the polymerizable monomer of 100 parts by mass, it is preferably 10 to 100 parts by mass, more preferably 30 to 100 parts by mass, and further preferably 50 to 100 parts by mass.
- the content of the other polyfunctional (meth) acrylate-based polymerizable monomer (a-4) is determined.
- the total amount of the polymerizable monomer is preferably 10 to 98 parts by mass, more preferably 30 to 90 parts by mass, still more preferably 50 to 80 parts by mass, based on 100 parts by mass.
- another polyfunctional for example, an adhesive composition for a stereolithography
- the content of the meta) acrylate-based polymerizable monomer (a-4) is preferably 40 to 99.9% by mass in the total amount of the adhesive composition for stereolithography, and the adhesiveness to the stereolithography. It is more preferably 55 to 99.5% by mass, and even more preferably 60 to 99% by mass, from the viewpoint of being more excellent.
- the other polyfunctional (meth) in the stereolithographic adhesive composition e.g, embodiments comprising a monofunctional (meth) acrylic polymerizable monomer (C)
- the content of the acrylate-based polymerizable monomer (a-4) is preferably 40 to 98% by mass in the total amount of the adhesive composition for stereolithography, and is more excellent in adhesiveness to stereolithography. Therefore, it is more preferably 45 to 90% by mass, and even more preferably 55 to 85% by mass.
- the total amount (total content) of the polyfunctional (meth) acrylic polymerizable monomer (A) in the adhesive composition for stereolithography of the present invention is 100 parts by mass of the total amount of the polymerizable monomer.
- the amount is preferably 10 to 100 parts by mass, more preferably 30 to 90 parts by mass, still more preferably 50 to 80 parts by mass, from the viewpoint of being more excellent in adhesion to the stereolithographic object.
- the polyfunctional (meth) in the adhesive composition for stereolithography is obtained.
- the total content of the acrylic polymerizable monomer (A) is preferably 40 to 99.9% by mass in the total amount of the adhesive composition for stereolithography, and the adhesiveness to the stereolithography is more excellent. Therefore, it is more preferably 55 to 99.5% by mass, and further preferably 60 to 99% by mass.
- the polyfunctional (meth) acrylic in the stereolithographic adhesive composition is preferably 40 to 98% by mass based on the total amount of the adhesive composition for stereolithography, and is superior in adhesiveness to stereolithography. It is more preferably to 90% by mass, and even more preferably 55 to 85% by mass.
- the adhesive composition for a stereolithographic object of the present invention needs to contain a photopolymerization initiator (B) because high curability is important in order to exhibit excellent adhesiveness to the stereolithographic object. Is.
- the photopolymerization initiator (B) used in the present invention can be selected from the polymerization initiators used in the general industry, and the photopolymerization initiator used for dental applications is particularly preferable.
- Examples of the photopolymerization initiator (B) include (bis) acylphosphine oxides, thioxanthones or quaternary ammonium salts of thioxanthones, ketals, ⁇ -diketones, coumarins, anthraquinones, benzoin alkyl ether compounds, ⁇ . -Aminoketone compounds and the like can be mentioned.
- the photopolymerization initiator (B) one type may be used alone, or two or more types may be used in combination.
- photopolymerization initiators (B) it is preferable to use at least one selected from the group consisting of (bis) acylphosphine oxides and ⁇ -diketones. As a result, it has excellent photocurability in the ultraviolet region and visible light region, and is suitable for photo-modeled objects that exhibit sufficient photocurability regardless of whether a light source such as a laser, a halogen lamp, a light emitting diode (LED), or a xenon lamp is used. An adhesive composition is obtained.
- examples of the acylphosphine oxides include 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,6-dimethoxybenzoyldiphenylphosphine oxide, and 2,6-dichlorobenzoyldiphenylphosphine oxide.
- 2,4,6-trimethylbenzoylmethoxyphenylphosphine oxide 2,4,6-trimethylbenzoylethoxyphenylphosphine oxide, 2,3,5,6-tetramethylbenzoyldiphenylphosphine oxide, benzoyldi (2,6-dimethylphenyl) ) Phosphate, 2,4,6-trimethylbenzoylphenylphosphine oxide sodium salt, 2,4,6-trimethylbenzoylphenylphosphine oxide potassium salt, 2,4,6-trimethylbenzoyldiphenylphosphine oxide ammonium salt.
- bisacylphosphine oxides include bis (2,6-dichlorobenzoyl) phenylphosphine oxide, bis (2,6-dichlorobenzoyl) -2,5-dimethylphenylphosphine oxide, and bis (2,6-dichlorobenzoyl).
- acylphosphine oxides 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,4,6-trimethylbenzoylmethoxyphenylphosphine oxide, bis (2,4,6-trimethylbenzoyl) phenylphosphine It is particularly preferable to use oxide and 2,4,6-trimethylbenzoylphenylphosphine oxide sodium salt as the photopolymerization initiator (B).
- ⁇ -diketones examples include diacetyl, benzyl, camphorquinone, 2,3-pentadione, 2,3-octadione, 9,10-phenanthrenequinone, 4,4'-oxybenzyl, and acenaphthenicinone.
- camphorquinone is particularly preferred when using a light source in the visible light range.
- the content of the photopolymerization initiator (B) in the adhesive composition for stereolithography of the present invention is not particularly limited, but from the viewpoint of curability and the like of the obtained adhesive composition for stereolithography, a single polymerizable mass. 0.01 to 20 parts by mass is preferable with respect to 100 parts by mass of the total amount of the body. If the content of the photopolymerization initiator (B) is less than 0.01 parts by mass, the polymerization may not proceed sufficiently and a molded product may not be obtained.
- the content of the photopolymerization initiator (B) is more preferably 0.05 parts by mass or more, further preferably 0.1 parts by mass or more, and particularly preferably 0.5 parts by mass or more with respect to 100 parts by mass of the total amount.
- the adhesive composition for a photopolymer is used. May cause precipitation.
- the content of the photopolymerization initiator (B) is more preferably 15 parts by mass or less, further preferably 10 parts by mass or less, and particularly preferably 5 parts by mass or less, based on 100 parts by mass of the total amount.
- the adhesive composition for stereolithography of the present invention can contain a monofunctional (meth) acrylic polymerizable monomer (C).
- the monofunctional (meth) acrylic polymerizable monomer (C) reduces the viscosity of the adhesive composition for stereolithography in the adhesive composition for stereolithography of the present invention, and provides lining and repair.
- the lining and repair surfaces can be peeled off by excessive stress loading, but there are two major mechanisms: when the bond between the stereolithography and the cured layer of the stereolithographic adhesive composition is cleaved.
- the cured product layer made of the adhesive composition for stereolithography may be destroyed.
- the cured product layer made of the adhesive composition for stereolithography is less likely to be broken, and the adhesiveness is improved. be able to.
- Examples of the monofunctional (meth) acrylic polymerizable monomer (C) include a (meth) acrylate-based polymerizable monomer containing an aromatic ring, an alicyclic (meth) acrylate-based polymerizable monomer, and the like. Examples thereof include a cyclic (meth) acrylate-based polymerizable monomer containing a nitrogen atom, a chain-like (meth) acrylate-based polymerizable monomer, a cyclic (meth) acrylamide compound, and a chain-like (meth) acrylamide compound.
- the monofunctional (meth) acrylic polymerizable monomer (C) one type may be used alone, or two or more types may be used in combination.
- the atmospheric pressure equivalent boiling point is 250 ° C. or higher, so that the boiling point tends to be high and the odor is hard to be felt.
- Polymerizable monomers, alicyclic (meth) acrylate-based polymerizable monomers, nitrogen atom-containing cyclic (meth) acrylate-based polymerizable monomers, and cyclic (meth) acrylamide compounds are preferable, and among these, curing is performed. From the viewpoint of property and adhesiveness, a (meth) acrylate-based polymerizable monomer containing an aromatic ring is more preferable.
- acrylamide compounds tend to have a high atmospheric pressure-equivalent boiling point and a low odor at the same molecular weight. It is presumed that this is due to the effect of giving a minute polarity by fixing the three-dimensional structure.
- the normal pressure boiling point in the present invention is a measured value by atmospheric distillation, and for a compound whose normal pressure boiling point cannot be observed, the boiling point conversion table (Science of Petroleum, Vol) is obtained from the reduced pressure boiling point measured by vacuum distillation.
- the atmospheric boiling point converted according to .II.p.1281 (1938)) is used.
- the monofunctional (meth) acrylic polymerizable monomer (C) preferably does not contain a urethane bond, a hydroxyl group, an amino group, and an acidic group.
- One embodiment includes an adhesive composition for stereolithography that does not contain a monofunctional (meth) acrylic polymerizable monomer containing a urethane bond, a hydroxyl group, an amino group, and / or an acidic group. Be done.
- Examples of the (meth) acrylate-based polymerizable monomer containing an aromatic ring include o-phenylphenol (meth) acrylate, m-phenylphenol (meth) acrylate, p-phenylphenol (meth) acrylate, and methoxylation-.
- o-phenylphenol (meth) acrylate methoxylated-m-phenylphenol (meth) acrylate, methoxylated-p-phenylphenol (meth) acrylate, ethoxylated-o-phenylphenol (meth) acrylate, ethoxylated-m- Phenylphenol (meth) acrylate, ethoxylated-p-phenylphenol (meth) acrylate, propoxylated-o-phenylphenol (meth) acrylate, propoxylated-m-phenylphenol (meth) acrylate, propoxylated-p-phenylphenol (Meta) acrylate, butoxyylated-o-phenylphenol (meth) acrylate, butoxylated-m-phenylphenol (meth) acrylate, butoxylated-p-phenylphenol (meth) acrylate, o-phenoxybenzyl (meth) acrylate, m-Phen
- Examples thereof include (meth) acrylate-based polymerizable monomers containing a fused ring such as 2-naphthyl acid, anthryl (meth) acrylate, fluorenyl (meth) acrylate, and fluorenylmethyl (meth) acrylate.
- Examples of the alicyclic (meth) acrylate-based polymerizable monomer include 2- (1-adamantyl) propyl (meth) acrylate, 2-methyladamantyl-2-yl (meth) acrylate, and (meth) acrylic.
- nitrogen atom-containing cyclic (meth) acrylate-based polymerizable monomer examples include pentamethylpiperidinyl (meth) acrylate, tetramethylpiperidinyl (meth) acrylate, and 4- (pyrimidine-2-yl) piperazine.
- nitrogen-containing heterocyclic group-containing polyfunctional (meth) acrylate compound such as -1-yl (meth) acrylate.
- Examples of the chain (meth) acrylate-based polymerizable monomer include 2-ethylhexyl (meth) acrylate, decyl (meth) acrylate, undecyl (meth) acrylate, lauryl (meth) acrylate, tridecyl (meth) acrylate, and tetradecyl.
- Chain hydrocarbon group-containing (meth) acrylate compound with 6 to 40 carbon atoms 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (meth) acrylate, 10-hydroxydecyl (meth) acrylate, glycerol mono (meth)
- chain hydrocarbon groups having 4 to 40 carbon atoms such as acrylates, erythritol mono (meth) acrylates and isobornylcyclohexyl (meth) acrylates, and hydroxyl group-containing (meth) acrylate compounds.
- Examples of the cyclic (meth) acrylamide compound include N- (meth) acryloylpyrrolidine, N- (meth) acryloylpiperidin, N- (meth) acryloyl-2-methylpiperidine, and N- (meth) acryloyl-2,2. Examples thereof include 6,6-tetramethylpiperidine.
- Examples of the chain (meth) acrylamide compound include N, N-dimethyl (meth) acrylamide, N, N-diethyl (meth) acrylamide, N, N-di-n-propyl (meth) acrylamide, and N-isopropyl ( Meta) Acrylamide, N, N-di-n-butyl (meth) acrylamide, N, N-di-n-hexyl (meth) acrylamide, N, N-di-n-octyl (meth) acrylamide, N, N- Examples thereof include di-2-ethylhexyl (meth) acrylamide, N- (2-hydroxyethyl) (meth) acrylamide, N, N, N-bis (2-hydroxyethyl) (meth) acrylamide and the like.
- the monofunctional (meth) acrylic polymerizable monomer (C) has a small odor of the adhesive composition for an optical model of the present invention, and imparts toughness to the lining and the repair surface.
- the content of the monofunctional (meth) acrylic polymerizable monomer (C) in the adhesive composition for stereolithography of the present invention is 1 to 60% by mass based on 100 parts by mass of the total amount of the polymerizable monomer. It is preferably 5 to 50 parts by mass, more preferably 10 to 40 parts by mass, from the viewpoint of being more excellent in adhesion to the stereolithographic object. Further, in the embodiment containing the monofunctional (meth) acrylic polymerizable monomer (C), the content of the monofunctional (meth) acrylic polymerizable monomer (C) is light.
- the total amount of the adhesive composition for a shaped object is preferably 1 to 55% by mass, more preferably 5 to 50% by mass, and 10 to 40% by mass from the viewpoint of being more excellent in adhesiveness to an optical modeled object. Is more preferable.
- the polymerizable monomer contained in the adhesive composition for an optical model of the present invention is substantially only the polyfunctional (meth) acrylic polymerizable monomer (A) or the polyfunctional (meth). ) It may be composed of only an acrylic polymerizable monomer (A) and a monofunctional (meth) acrylic polymerizable monomer (C).
- the polymerizable monomer is substantially only the polyfunctional (meth) acrylic polymerizable monomer (A), or the polyfunctional (meth) acrylic polymerizable monomer (A) and monofunctional.
- the fact that it is composed only of the sex (meth) acrylic polymerizable monomer (C) means that the polyfunctional (meth) acrylic polymerizable monomer (A) or the polyfunctional (meth) acrylic is composed.
- the content of the polymerizable monomer other than the system-polymerizable monomer (A) and the monofunctional (meth) acrylic-based polymerizable monomer (C) is added to the adhesive composition for an optical model.
- the total amount of the polymerizable monomer contained is 100 parts by mass, which is less than 10.0 parts by mass, preferably less than 5.0 parts by mass, more preferably less than 1.0 part by mass, and further preferably 0. It means that it is less than 1 part by mass, and particularly preferably less than 0.01 part by mass.
- the adhesive composition for a stereolithographic object of the present invention is not particularly limited as long as it contains the above-mentioned polyfunctional (meth) acrylic polymerizable monomer (A) and a photopolymerization initiator (B). However, for example, it may contain other components.
- the adhesive composition for stereolithography of the present invention can be produced according to a known method.
- the adhesive composition for stereolithography of the present invention may contain a polymerization accelerator for the purpose of improving photocurability within a range that does not impair the gist of the present invention.
- the polymerization accelerator include ethyl 4- (N, N-dimethylamino) benzoate, methyl 4- (N, N-dimethylamino) benzoate, and n- (N, N-dimethylamino) benzoate.
- the adhesive composition for stereolithography of the present invention contains an organic solvent in order to adjust the coating thickness of the adhesive and to adjust the permeability to the stereolithography within a range not impairing the gist of the present invention. It may be blended.
- the organic solvent include ethyl acetate, butyl acetate, methylene chloride, acetone, ethanol, isopropanol and the like.
- One type of organic solvent may be used alone, or two or more types may be used in combination.
- the adhesive composition for stereolithography of the present invention may further contain a filler in order to adjust the paste properties.
- a filler include an organic filler, an inorganic filler, an organic-inorganic composite filler, and the like.
- One type of filler may be used alone, or two or more types may be used in combination.
- Examples of the material of the organic filler include polymethylmethacrylate, ethylpolymethacrylate, methyl methacrylate-ethyl methacrylate copolymer, crosslinked polymethylmethacrylate, crosslinked polyethylmethacrylate, polyester, polyamide, and polycarbonate.
- Polyphenylene ether polyoxymethylene, polyvinyl chloride, polystyrene, polyethylene, polypropylene, chloroprene rubber, nitrile rubber, ethylene-vinyl acetate copolymer, styrene-butadiene copolymer, acrylonitrile-styrene copolymer, acrylonitrile-styrene-butadiene Examples include copolymers. These may be used alone or in combination of two or more.
- the shape of the organic filler is not particularly limited, and the particle size of the filler can be appropriately selected and used.
- Examples of the material of the inorganic filler include quartz, silica, alumina, silica-titania, silica-titania-valium oxide, silica-zirconia, silica-alumina, lanthanum glass, borosilicate glass, soda glass, barium glass, and strontium glass. Glass ceramic, aluminosilicate glass, bariumboroaluminosilicate glass, strontium boroaluminosilicate glass, fluoroaluminosilicate glass, calciumfluoroaluminosilicate glass, strontiumfluoroaluminosilicate glass, bariumfluoroaluminosilicate glass, strontium calciumfluoroaluminosilicate glass. Be done. These may also be used alone or in combination of two or more.
- the shape of the inorganic filler is not particularly limited, and an amorphous filler, a spherical filler, or the like can be appropriately selected and used.
- organic-inorganic composite filler examples include an organic filler in which the inorganic filler is dispersed, and an inorganic / organic composite filler in which the inorganic filler is coated with various polymerizable monomers.
- a polymer can be added to the adhesive composition for stereolithography of the present invention for the purpose of modifying flexibility, fluidity, etc. within a range that does not impair the gist of the present invention.
- polystyrene-polyisoprene-polystyrene block copolymers polystyrene-polybutadiene-polystyrene block copolymers
- Block copolymers poly (p-methylstyrene) -polybutadiene-poly (p-methylstyrene) block copolymers, hydrogenated additives thereof and the like can be mentioned.
- the adhesive composition for stereolithography of the present invention may contain a softening agent, if necessary.
- the softener include petroleum-based softeners such as paraffin-based, naphthen-based and aromatic process oils, and vegetable oil-based softeners such as paraffin, peanut oil and rosin.
- One of these softeners may be used alone, or two or more thereof may be used in combination.
- the content of the softener is not particularly limited as long as the gist of the present invention is not impaired, but is usually 200 parts by mass or less, preferably 100 parts by mass or less, based on 100 parts by mass of the total amount of the polymerizable monomer. be.
- a known stabilizer can be added to the adhesive composition for stereolithography of the present invention for the purpose of suppressing deterioration or adjusting photocurability.
- the stabilizer include a polymerization inhibitor, an ultraviolet absorber, and an antioxidant.
- polymerization inhibitor examples include hydroquinone, hydroquinone monomethyl ether, dibutylhydroquinone, dibutylhydroquinone monomethyl ether, 4-t-butylcatechol, 2-t-butyl-4,6-dimethylphenol, 2,6-di-t-. Examples thereof include butylphenol and 3,5-di-t-butyl-4-hydroxytoluene.
- the content of the polymerization inhibitor is preferably 0.001 to 5.0 parts by mass with respect to 100 parts by mass of the total amount of the polymerizable monomer.
- a known additive can be added to the adhesive composition for stereolithography of the present invention for the purpose of adjusting the color tone or the paste properties.
- the additive include pigments, dyes, thickeners, polymers, prepolymers (oligomers), aryl compounds (for example, aryliodonium salts), and silane coupling agents.
- the additive one type may be used alone, or two or more types may be used in combination.
- the content of the additive is not particularly limited, and may be less than 10% by mass, less than 1% by mass, or less than 0.1% by mass.
- an adhesive for stereolithography containing a polyfunctional (meth) acrylic polymerizable monomer (A) and a photopolymerization initiator (B) and containing no polymer or oligomer.
- A polyfunctional acrylic polymerizable monomer
- B photopolymerization initiator
- examples include sex compositions.
- the adhesive composition for a stereolithographic object of the present invention is excellent in adhesiveness to a stereolithographic object by having the above-mentioned structure.
- stereolithography secondary polymerization is usually carried out in order to polymerize an unreacted polymerizable monomer after molding, but the adhesive composition for stereolithography of the present invention is used after this secondary polymerization and. It is characterized by its excellent adhesiveness even when the polymerization has progressed to hardness after a long period of time from modeling. Therefore, the adhesive composition for an optical model of the present invention can be applied to applications in which such advantages are utilized, and is particularly suitable for lining and repairing denture base materials and mouthpiece-shaped sleep disorder treatment tools. .. In the lining of the denture base material, not only can it be applied as an adhesive in the conventional lining method, but it can also be applied as the lining material itself for the denture base material.
- Examples of the optical model using the adhesive composition for the optical model of the present invention include a denture base material, a dental mouthpiece, and a therapeutic tool for sleep apnea syndrome.
- the stereolithography is not particularly limited, but includes, for example, a polymerizable monomer and a photopolymerization initiator, and the polymerizable monomer is a urethanized (meth) acrylic acid ester compound (a-1) and urethane.
- Examples thereof include a stereolithographic product obtained by stereolithography of a composition containing at least one selected from the group consisting of an aromatic compound-based (meth) acrylic acid ester compound (a-2) containing no bond.
- the urethanized (meth) acrylic acid ester compound (a-1) and the aromatic compound-based (meth) acrylic acid ester compound (a-2) that does not contain a urethane bond are described in Adhesive Compositions for Photo-Models.
- the photopolymerization initiator the photopolymerization initiator (B) described in the adhesive composition for photopolymers can be used.
- the stereolithography comprises a polymerizable monomer and a photopolymerization initiator, wherein the compatible monomer contains a urethanized (meth) acrylic acid ester compound (a-1).
- An example is a stereolithographic object made by stereolithography.
- the adhesive composition for a photopolymer of the present invention is used for adjusting the thickness and adhesiveness of the denture base material, the lining of the mouthpiece-shaped sleep disorder treatment tool and the restoration coating, as required.
- the type and content of the components can be adjusted.
- One embodiment includes a method of lining or repairing a three-dimensional model (stereolithography) produced by an optical three-dimensional modeling method using the adhesive composition for a stereolithography described above.
- optics comprising a step of applying a stereolithographic adhesive composition to a backing surface and a restoration surface of a stereolithography object (particularly a denture base material, a dental occlusal sprint and a sleep disorder treatment tool) and then irradiating with light.
- Examples include lining and repairing a modeled object by stereolithography.
- Both a conventionally known dental light irradiator ( ⁇ -light V manufactured by Morita Co., Ltd.) and a post-cure device for stereolithography (Otoflash G171) can be used.
- active energy rays means an energy ray capable of curing an adhesive composition for an optical model such as ultraviolet rays, electron beams, X-rays, radiation, high frequency and the like.
- Examples of the light source of the active energy ray include illuminations such as halogen lamps, xenon lamps, metal halide lamps, LEDs, mercury lamps, and fluorescent lamps, and halogens and LEDs are particularly preferable.
- TPO 2,4,6-trimethylbenzoyldiphenylphosphine oxide
- BAPO bis (2,4,6-trimethylbenzoyl) phenylphosphine oxide
- Examples 1 to 8 and Comparative Examples 1 to 10 Each component was mixed at room temperature (20 ° C. ⁇ 15 ° C., JIS (Japanese Industrial Standards) Z 8703: 1983) in the amounts shown in Tables 1 and 2, and according to Examples 1 to 8 and Comparative Examples 1 to 10.
- a paste was prepared as an adhesive composition for stereolithography.
- ⁇ Adhesive strength> For the resin compositions 1 and 2 for stereolithography obtained in the reference example, a test piece having a diameter of 20 mm and a height of 15 mm was formed using a stereolithography machine (DIGITALWAX (registered trademark) 020D manufactured by DWS) and irradiated with light. After flashing 2000 times with a machine (Otoflash (registered trademark) G171 manufactured by EnvironmentTEC) to complete curing, one flat surface is further subjected to # 600 silicon carbide paper (manufactured by Nihon Kenshi Co., Ltd.) under running water. After polishing, the water on the surface was blown off with a dental air syringe to obtain a three-dimensional model.
- DIGITALWAX registered trademark
- Otoflash registered trademark
- G171 manufactured by EnvironmentTEC
- the adhesive composition for stereolithography of Examples and Comparative Examples was applied to the polished surface of the obtained three-dimensional model with a brush, spread thinly with a dental air syringe, and then light-irradiated (registered by EnvisionTEC). 1000 flashes were irradiated with the trademark) G171).
- a silicon sheet having a diameter of 4 mm and a thickness of about 1.0 mm was attached to the coated surface of the adhesive composition for stereolithography to define the adhesive area.
- the denture base lining material Kerray Noritake Dental Co., Ltd. Claribase (registered trademark)
- a 1 cm ⁇ 1 cm PET film is crimped.
- a weight of 500 g was placed through a glass plate having a length and width of 1 cm and a thickness of 5.0 mm, and left as it was at room temperature for 1 hour to cure the denture base lining material.
- the solvent was removed with a dental air syringe, and then the Claribase was filled without irradiating with light. Then, the weight and the PET film were removed, and the mixture was immersed in distilled water.
- Adhesion test A total of 5 test samples were prepared, and all the samples immersed in distilled water were stored in an incubator kept at 37 ° C. for 24 hours, and then a shear adhesion test was carried out.
- MMA Methyl Methacrylate (manufactured by Shin Nakamura Chemical Industry Co., Ltd., atmospheric pressure boiling point: 100 ° C)
- BZMA Benzyl methacrylate (manufactured by Kyoeisha Chemical Co., Ltd., boiling point converted to normal pressure: 226 ° C)
- ACMO N-acryloyl morpholine (manufactured by KJ Chemicals Co., Ltd., boiling point equivalent to normal pressure: 255 ° C)
- HEMA 2-Hydroxyethyl methacrylate (manufactured by Kyoeisha Chemical Co., Ltd., boiling point in terms of normal pressure: 223 ° C)
- MDP 10-methacryloyloxydecyldihydrogen phosphate (manufactured by Kuraray Noritake Dental Co., Ltd., boiling point at normal pressure: 300 ° C or higher)
- 4META 4-methacryloyloxyethyl trim
- the adhesiveness of the adhesive composition for stereolithography in Examples 1 to 8 to the optically three-dimensional object is a polyfunctional (meth) acrylic polymerizable monomer (A). It was superior to that of the compositions of Comparative Examples 1 to 10 containing no. Moreover, in Examples 1 to 8, the result that the odor was also low was obtained. In particular, the odor of the adhesive composition for stereolithography according to Examples 1 to 8 was lower than that of the compositions of Comparative Examples 1, 4, 5, and 10, and was excellent.
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Abstract
Description
[1]多官能性の(メタ)アクリル系重合性単量体(A)、及び光重合開始剤(B)を含有する光造形物用接着性組成物。
[2]前記多官能性の(メタ)アクリル系重合性単量体(A)が、ウレタン化(メタ)アクリル酸エステル化合物(a-1)、ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)、及び(メタ)アクリルアミド基を含有する重合性単量体(a-3)の中の少なくとも1種を含有する、[1]に記載の光造形物用接着性組成物。
[3]前記ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)が、水酸基、1級アミノ基、及び2級アミノ基からなる群より選ばれる少なくとも1種を有する、[2]に記載の光造形物用接着性組成物。
[4]前記(メタ)アクリルアミド基を含有する重合性単量体(a-3)が、1級アミド結合、及び2級アミド結合からなる群より選ばれる少なくとも1種を含有する、[2]に記載の光造形物用接着性組成物。
[5]前記ウレタン化(メタ)アクリル酸エステル化合物(a-1)が、ポリマー構造を含有していない化合物である、[2]に記載の光造形物用接着性組成物。
[6]前記ウレタン化(メタ)アクリル酸エステル化合物(a-1)が、2,2,4-トリメチルヘキサメチレンビス(2-カルバモイルオキシエチル)ジメタクリレート、及びN,N’-(2,2,4-トリメチルヘキサメチレン)ビス[2-(アミノカルボキシ)プロパン-1,3-ジオール]テトラメタクリレートからなる群より選ばれる少なくとも1種を含有する、[5]に記載の光造形物用接着性組成物。
[7]さらに、単官能性の(メタ)アクリル系重合性単量体(C)を含有する、[1]~[6]のいずれかに記載の光造形物用接着性組成物。
[8]前記単官能性の(メタ)アクリル系重合性単量体(C)の常圧換算沸点が250℃以上である、[7]に記載の光造形物用接着性組成物。
[9]前記単官能性の(メタ)アクリル系重合性単量体(C)が、ウレタン結合、水酸基、アミノ基、及び酸性基を含有しない、[7]又は[8]に記載の光造形物用接着性組成物。
[10]前記単官能性の(メタ)アクリル系重合性単量体(C)が芳香環を含有する、[7]~[9]のいずれかに記載の光造形物用接着性組成物。
[11]光造形物が、義歯床材料、歯科用マウスピース、又は睡眠時無呼吸症候群用治療具である、[1]~[10]のいずれかに記載の光造形物用接着性組成物。
[12][1]~[10]のいずれかに記載の光造形物用接着性組成物からなる、義歯床用裏装材。
[13][1]~[10]のいずれかに記載の光造形物用接着性組成物からなる、義歯床裏装用接着材。
[14][1]~[10]のいずれかに記載の光造形物用接着性組成物の造形物からなる、睡眠障害治療具用修復材。
[15][1]~[11]のいずれかに記載の光造形物用接着性組成物を用いて、光学的立体造形法によって作製された立体造形物を裏装又は修復する方法。
多官能性の(メタ)アクリル系重合性単量体(A)は、本発明の光造形物用接着性組成物において、光造形物に対する優れた接着性を付与するために用いられる。優れた接着性の発現には硬化性が特に強く寄与するため、多官能性の(メタ)アクリル系重合性単量体(A)は、(メタ)アクリル系の重合性基((メタ)アクリロイルオキシ基、(メタ)アクリルアミド基)を1分子に2個以上含有していることが必要である。特に高い硬化性を発現し、かつ光造形物に対して優れた接着性が得られやすい観点から、ウレタン化(メタ)アクリル酸エステル化合物(a-1)、ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)、及び(メタ)アクリルアミド基を含有する重合性単量体(a-3)の中の少なくとも1種を含有することが好ましい。多官能性の(メタ)アクリル系重合性単量体(A)は、1種を単独で用いてもよく、2種以上を併用してもよい。これらの中でも、ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)は、光造形物に対して優れた接着性が得られやすい観点から、水酸基、1級アミノ基、及び2級アミノ基からなる群より選ばれる少なくとも1種を含有していることがより好ましい。(メタ)アクリルアミド基を含有する重合性単量体(a-3)は、光造形物に対して優れた接着性が得られやすい観点から、1級アミド結合、及び2級アミド結合からなる群より選ばれる少なくとも1種を含有していることがより好ましい。これらの化合物は、ウレタン結合、芳香族骨格、アクリルアミド、水酸基、1級アミノ基、2級アミノ基の誘電的効果によって、硬化を促進するだけでなく、水素結合やπ電子の作用などの化学的な結合を生成するものと推測される。よって、造形物に対する接着性がより優れる。なお、本明細書において「(メタ)アクリル」との表記は、メタクリルとアクリルの両者を包含する意味で用いられ、これと類似する「(メタ)アクリロイル」、「(メタ)アクリレート」等の表記についても同様である。(メタ)アクリレート系とは、(メタ)アクリル酸エステル、(メタ)アクリルアミドを包含する意味で用いられる。
ウレタン化(メタ)アクリル酸エステル化合物(a-1)は、例えば、アルキレン骨格、フェニレン骨格を含有するイソシアネートを含有する化合物と、水酸基を有する(メタ)アクリレート化合物とを付加反応させることにより、容易に合成することができる。一方、低粘度で塗布しやすく、光造形物に対する浸透性が得られやすい観点から重量平均分子量は1000以下であることが好ましい。なお、ウレタン化(メタ)アクリル酸エステル化合物(a-1)がポリマー構造を含有しない場合、重量平均分子量の概念がないため、分子量を適用する。重量平均分子量が1000を超えた場合、光造形物用接着性組成物が高粘度化及び浸透性が低下する傾向となる。光造形物に対する優れた接着性の観点から、重量平均分子量は750以下であることがより好ましく、500以下であることがさらに好ましい。さらに、ウレタン化(メタ)アクリル酸エステル化合物(a-1)は、ポリエステル、ポリカーボネート、ポリウレタン、ポリエーテル等のポリマー構造を含有していない化合物であることが好ましく、これらの構造を含有している場合、極性を有する官能基濃度が上昇することから、口腔内のような水分存在下での接着性が低下する傾向となる。とりわけウレタン結合は水分存在下での接着性の観点から1分子内に3個以下であることがより好ましく、2個以下であることがさらに好ましい。なお、ここでいう重量平均分子量とは、ゲル浸透クロマトグラフィー(GPC)で求めたポリスチレン換算の重量平均分子量を意味する。ウレタン化(メタ)アクリル酸エステル化合物(a-1)は、1種を単独で用いてもよく、2種以上を併用してもよい。
また、ある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含まない実施形態)においては、光造形物用接着性組成物におけるウレタン化(メタ)アクリル酸エステル化合物(a-1)の含有量は、光造形物用接着性組成物の総量において、40~99.9質量%であることが好ましく、光造形物に対する接着性により優れる点から、55~99.5質量%であることがより好ましく、60~99質量%であることがさらに好ましい。他のある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含む実施形態)においては、光造形物用接着性組成物におけるウレタン化(メタ)アクリル酸エステル化合物(a-1)の含有量は、光造形物用接着性組成物の総量において、40~98質量%であることが好ましく、光造形物に対する接着性により優れる点から、45~90質量%であることがより好ましく、55~85質量%であることがさらに好ましい。
ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)としては、2,2-ビス((メタ)アクリロイルオキシフェニル)プロパン、2,2-ビス〔4-(3-アクリロイルオキシ)-2-ヒドロキシプロポキシフェニル〕プロパン、2,2-ビス〔4-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)フェニル〕プロパン(通称「Bis-GMA」)、2,2-ビス〔4-{2-(3-アクリロイルオキシ-2-ヒドロキシプロポキシ)プロピル}フェニル〕プロパン、2,2-ビス〔4-{2-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)プロピル}フェニル〕プロパン、2,2-ビス(4-(メタ)アクリロイルオキシエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシポリエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシジエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシテトラエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシペンタエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシジプロポキシフェニル)プロパン、2-(4-(メタ)アクリロイルオキシジエトキシフェニル)-2-(4-(メタ)アクリロイルオキシエトキシフェニル)プロパン、2-(4-(メタ)アクリロイルオキシジエトキシフェニル)-2-(4-(メタ)アクリロイルオキシトリエトキシフェニル)プロパン、2-(4-(メタ)アクリロイルオキシジプロポキシフェニル)-2-(4-(メタ)アクリロイルオキシトリエトキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシプロポキシフェニル)プロパン、2,2-ビス(4-(メタ)アクリロイルオキシイソプロポキシフェニル)プロパン、1,4-ビス(2-(メタ)アクリロイルオキシエチル)ピロメリテート等が挙げられる。これらは、1種単独で用いてもよく、2種以上を併用してよい。これらの中でも、光造形物に対する接着性が優れる点で、水酸基を含有することが好ましいが、具体的には、2,2-ビス〔4-(3-アクリロイルオキシ)-2-ヒドロキシプロポキシフェニル〕プロパン、2,2-ビス〔4-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)フェニル〕プロパン、2,2-ビス〔4-{2-(3-アクリロイルオキシ-2-ヒドロキシプロポキシ)プロピル}フェニル〕プロパン、2,2-ビス〔4-{2-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)プロピル}フェニル〕プロパンが好ましい。これらのなかでも、2,2-ビス〔4-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)フェニル〕プロパンがより好ましい。
また、ある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含まない実施形態)においては、光造形物用接着性組成物におけるウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)の含有量は、光造形物用接着性組成物の総量において、40~99.9質量%であることが好ましく、光造形物に対する接着性により優れる点から、55~99.5質量%であることがより好ましく、60~99質量%であることがさらに好ましい。他のある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含む実施形態)においては、光造形物用接着性組成物におけるウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)の含有量は、光造形物用接着性組成物の総量において、40~98質量%であることが好ましく、光造形物に対する接着性により優れる点から、45~90質量%であることがより好ましく、55~85質量%であることがさらに好ましい。
(メタ)アクリルアミド基を含有する重合性単量体(a-3)としては、N,N’-エチレンビス(メタ)アクリルアミド、N,N’-プロピレンレンビス(メタ)アクリルアミド、N,N’-ブチレンビス(メタ)アクリルアミド、N,N’-ヘキサメチレンビス(メタ)アクリルアミド等の(メタ)アクリルアミド系重合性単量体;2-(メタ)アクリロイルオキシエチル(メタ)アクリルアミド、2-(メタ)アクリロイルオキシプロピル(メタ)アクリルアミド、2-(メタ)アクリロイルオキシブチル(メタ)アクリルアミド、2-(メタ)アクリロイルオキシヘキシル(メタ)アクリルアミド等の(メタ)アクリルアミド基を1個有し、(メタ)アクリロイルオキシ基を1個有する重合性単量体等が挙げられる。(メタ)アクリルアミド基を1個有し、(メタ)アクリロイルオキシ基を1個有する重合性単量体は、下記一般式(1)で表される非対称型アクリルアミド・メタクリル酸エステル化合物であってもよい。(メタ)アクリルアミド基を含有する重合性単量体(a-3)は、1種を単独で用いてもよく、2種以上を併用してもよい。
また、ある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含まない実施形態)においては、光造形物用接着性組成物における(メタ)アクリルアミド基を含有する重合性単量体(a-3)の含有量は、光造形物用接着性組成物の総量において、40~99.9質量%であることが好ましく、光造形物に対する接着性により優れる点から、55~99.5質量%であることがより好ましく、60~99質量%であることがさらに好ましい。他のある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含む実施形態)においては、光造形物用接着性組成物における(メタ)アクリルアミド基を含有する重合性単量体(a-3)の含有量は、光造形物用接着性組成物の総量において、40~98質量%であることが好ましく、光造形物に対する接着性により優れる点から、45~90質量%であることがより好ましく、55~85質量%であることがさらに好ましい。
また、ある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含まない実施形態)においては、光造形物用接着性組成物における他の多官能性の(メタ)アクリレート系重合性単量体(a-4)の含有量は、光造形物用接着性組成物の総量において、40~99.9質量%であることが好ましく、光造形物に対する接着性により優れる点から、55~99.5質量%であることがより好ましく、60~99質量%であることがさらに好ましい。他のある実施形態(例えば、単官能性の(メタ)アクリル系重合性単量体(C)を含む実施形態)においては、光造形物用接着性組成物における他の多官能性の(メタ)アクリレート系重合性単量体(a-4)の含有量は、光造形物用接着性組成物の総量において、40~98質量%であることが好ましく、光造形物に対する接着性により優れる点から、45~90質量%であることがより好ましく、55~85質量%であることがさらに好ましい。
本発明の光造形物用接着性組成物には、光造形物に対して優れた接着性を発現させるために高い硬化性が重要であるため、光重合開始剤(B)を含むことが必要である。本発明に用いられる光重合開始剤(B)は、一般工業界で使用されている重合開始剤から選択して使用でき、中でも歯科用途に使用されている光重合開始剤が好ましい。
本発明の光造形物用接着性組成物は、単官能性の(メタ)アクリル系重合性単量体(C)を含むことができる。単官能性の(メタ)アクリル系重合性単量体(C)は、本発明の光造形物用接着性組成物において、光造形物用接着性組成物を低粘度化し、かつ裏装及び修復面に靭性を付与することによって、さらに接着性を向上させることができる。裏装及び修復面は過度な応力負荷によって剥離し得るが、メカニズムとしては大きく2つあり、光造形物と光造形物用接着性組成物の硬化物からなる層との結合が開裂する場合、及び光造形物用接着性組成物からなる硬化物層が破壊する場合が挙げられる。単官能性の(メタ)アクリル系重合性単量体(C)を含み靭性を付与することによって、光造形物用接着性組成物からなる硬化物層が破壊しにくくなり、接着性を向上させることができる。
[ウレタン化(メタ)アクリル酸エステル化合物(a-1)]
UDMA:2,2,4-トリメチルヘキサメチレンビス(2-カルバモイルオキシエチル)ジメタクリレート(共栄社化学株式会社製 分子量:471)
U4TH:N,N’-(2,2,4-トリメチルヘキサメチレン)ビス[2-(アミノカルボキシ)プロパン-1,3-ジオール]テトラメタクリレート(共栄社化学株式会社製 分子量:673)
[ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)]
Bis-GMA:2,2-ビス〔4-(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)フェニル〕プロパン(新中村化学工業株式会社製)
[(メタ)アクリルアミド基を含有する重合性単量体(a-3)]
MAEA:2-メタクリロイルオキシエチルアクリルアミド(KJケミカルズ株式会社製)
[他の多官能性の(メタ)アクリレート系重合性単量体(a-4)]
BMHPE:1,2-ビス(3-メタクリロイルオキシ-2-ヒドロキシプロポキシ)エタン(新中村化学工業株式会社製)
TEGDMA:トリエチレングリコールジメタクリレート(新中村化学工業株式会社製)
TPO:2,4,6-トリメチルベンゾイルジフェニルホスフィンオキシド
BAPO:ビス(2,4,6-トリメチルベンゾイル)フェニルホスフィンオキシド
POBA:m-フェノキシベンジルアクリレート(共栄社化学株式会社製、常圧換算沸点:300℃以上)
EPPA:エトキシ化-o-フェニルフェノールアクリレート(新中村化学工業株式会社製、常圧換算沸点:300℃以上)
BHT:3,5-ジ-t-ブチル-4-ヒドロキシトルエン
2Lの褐色広口ポリエチレン製の瓶に、2,2,4-トリメチルヘキサメチレンビス(2-カルバモイルオキシエチル)ジメタクリレート 700g、m-フェノキシベンジルアクリレート 300g、2,4,6-トリメチルベンゾイルジフェニルホスフィンオキシド 30g、BHT 5.0gを投入し、メカニカル撹拌機を挿入して、25℃で48時間撹拌して、完全に溶解したことを確認した。得られた組成物を光造形物用樹脂組成物1とした。
2Lの褐色広口ポリエチレン製の瓶に、エトキシ化ビスフェノールAジアクリレート(新中村化学工業株式会社製 ABE-300) 600g、m-フェノキシベンジルアクリレート 400g、2,4,6-トリメチルベンゾイルジフェニルホスフィンオキシド 30g、BHT 5.0gを投入し、メカニカル撹拌機を挿入して、25℃で48時間撹拌して、完全に溶解したことを確認した。得られた組成物を光造形物用樹脂組成物2とした。
表1及び表2に示す分量で各成分を常温(20℃±15℃、JIS(日本工業規格) Z 8703:1983)下で混合して、実施例1~8及び比較例1~10に係る光造形物用接着性組成物としてのペーストを調製した。
各実施例及び各比較例に係る光造形物用接着性組成物及びリベース接着材について、10人のパネラーで臭気を評価した(n=1)。10人のパネラーのうち、不快な臭気を感じた人が2人未満であったものを「○」、不快な臭気を感じた人が2人以上5人未満であったものを「△」、不快な臭気を感じた人が5人以上であったものを「×」とした。不快な臭気を感じなければ特に問題はない。
参考例で得られた光造形物用樹脂組成物1及び2について、光造形機(DWS社製 DIGITALWAX(登録商標) 020D)を用いて、φ20mm×高さ15mmの試験片を造形し、光照射機(EnvisionTEC社製 Otoflash(登録商標)G171)で2000回フラッシュして、硬化を完了させた後、一方の平面を流水下にて#600のシリコンカーバイド紙(日本研紙株式会社製)でさらに研磨した後、表面の水を歯科用エアシリンジで吹き飛ばし、立体造形物を得た。
BZMA:ベンジルメタクリレート(共栄社化学株式会社製、常圧換算沸点:226℃)
ACMO:N-アクリロイルモルホリン(KJケミカルズ株式会社製、常圧換算沸点:255℃)
HEMA:2-ヒドロキシエチルメタクリレート(共栄社化学株式会社製、常圧換算沸点:223℃)
MDP:10-メタクリロイルオキシデシルジハイドロジェンホスフェート(クラレノリタケデンタル株式会社製、常圧換算沸点:300℃以上)
4META:4-メタクリロイルオキシエチルトリメリテートアンハイドライド(富士フイルム和光純薬株式会社製、常圧換算沸点:300℃以上)
MPS:(信越化学工業株式会社製、3-メタクリロイルオキシプロピルトリメトキシシラン 常圧沸点:190℃)
Claims (15)
- 多官能性の(メタ)アクリル系重合性単量体(A)、及び光重合開始剤(B)を含有する光造形物用接着性組成物。
- 前記多官能性の(メタ)アクリル系重合性単量体(A)が、ウレタン化(メタ)アクリル酸エステル化合物(a-1)、ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)、及び(メタ)アクリルアミド基を含有する重合性単量体(a-3)の中の少なくとも1種を含有する、請求項1に記載の光造形物用接着性組成物。
- 前記ウレタン結合を含有しない芳香族化合物系の(メタ)アクリル酸エステル化合物(a-2)が、水酸基、1級アミノ基、及び2級アミノ基からなる群より選ばれる少なくとも1種を有する、請求項2に記載の光造形物用接着性組成物。
- 前記(メタ)アクリルアミド基を含有する重合性単量体(a-3)が、1級アミド結合、及び2級アミド結合からなる群より選ばれる少なくとも1種を含有する、請求項2に記載の光造形物用接着性組成物。
- 前記ウレタン化(メタ)アクリル酸エステル化合物(a-1)が、ポリマー構造を含有していない化合物である、請求項2に記載の光造形物用接着性組成物。
- 前記ウレタン化(メタ)アクリル酸エステル化合物(a-1)が、2,2,4-トリメチルヘキサメチレンビス(2-カルバモイルオキシエチル)ジメタクリレート、及びN,N’-(2,2,4-トリメチルヘキサメチレン)ビス[2-(アミノカルボキシ)プロパン-1,3-ジオール]テトラメタクリレートからなる群より選ばれる少なくとも1種を含有する、請求項5に記載の光造形物用接着性組成物。
- さらに、単官能性の(メタ)アクリル系重合性単量体(C)を含有する、請求項1~6のいずれかに記載の光造形物用接着性組成物。
- 前記単官能性の(メタ)アクリル系重合性単量体(C)の常圧換算沸点が250℃以上である、請求項7に記載の光造形物用接着性組成物。
- 前記単官能性の(メタ)アクリル系重合性単量体(C)が、ウレタン結合、水酸基、アミノ基、及び酸性基を含有しない、請求項7又は8に記載の光造形物用接着性組成物。
- 前記単官能性の(メタ)アクリル系重合性単量体(C)が芳香環を含有する、請求項7~9のいずれかに記載の光造形物用接着性組成物。
- 光造形物が、義歯床材料、歯科用マウスピース、又は睡眠時無呼吸症候群用治療具である、請求項1~10のいずれかに記載の光造形物用接着性組成物。
- 請求項1~10のいずれかに記載の光造形物用接着性組成物からなる、義歯床用裏装材。
- 請求項1~10のいずれかに記載の光造形物用接着性組成物からなる、義歯床裏装用接着材。
- 請求項1~10のいずれかに記載の光造形物用接着性組成物の造形物からなる、睡眠障害治療具用修復材。
- 請求項1~11のいずれかに記載の光造形物用接着性組成物を用いて、光学的立体造形法によって作製された立体造形物を裏装又は修復する方法。
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JPH07165808A (ja) * | 1993-12-15 | 1995-06-27 | Tokuyama Corp | 光硬化性組成物 |
JPH10100263A (ja) * | 1996-09-27 | 1998-04-21 | Suzuki Motor Corp | 立体物造形方法 |
JP2000159621A (ja) | 1998-12-02 | 2000-06-13 | Kuraray Co Ltd | 歯科用光重合性組成物 |
JP2000312689A (ja) * | 1999-03-03 | 2000-11-14 | Kuraray Co Ltd | 義歯床用裏装材 |
JP2008214359A (ja) | 2000-12-04 | 2008-09-18 | Tokuyama Corp | 義歯床裏装材用接着性組成物 |
WO2018181832A1 (ja) | 2017-03-29 | 2018-10-04 | 三井化学株式会社 | 光硬化性組成物、義歯床及び有床義歯 |
JP2019044065A (ja) | 2017-09-01 | 2019-03-22 | 株式会社トクヤマデンタル | 光硬化性組成物 |
WO2020203981A1 (ja) * | 2019-03-29 | 2020-10-08 | 三井化学株式会社 | 光硬化性組成物、硬化物及び歯科用製品 |
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JPH07165808A (ja) * | 1993-12-15 | 1995-06-27 | Tokuyama Corp | 光硬化性組成物 |
JPH10100263A (ja) * | 1996-09-27 | 1998-04-21 | Suzuki Motor Corp | 立体物造形方法 |
JP2000159621A (ja) | 1998-12-02 | 2000-06-13 | Kuraray Co Ltd | 歯科用光重合性組成物 |
JP2000312689A (ja) * | 1999-03-03 | 2000-11-14 | Kuraray Co Ltd | 義歯床用裏装材 |
JP2008214359A (ja) | 2000-12-04 | 2008-09-18 | Tokuyama Corp | 義歯床裏装材用接着性組成物 |
WO2018181832A1 (ja) | 2017-03-29 | 2018-10-04 | 三井化学株式会社 | 光硬化性組成物、義歯床及び有床義歯 |
JP2019044065A (ja) | 2017-09-01 | 2019-03-22 | 株式会社トクヤマデンタル | 光硬化性組成物 |
WO2020203981A1 (ja) * | 2019-03-29 | 2020-10-08 | 三井化学株式会社 | 光硬化性組成物、硬化物及び歯科用製品 |
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