WO2013034777A2 - Dentalmaterialien auf basis von monomeren mit debonding-on-demand eigenschaften - Google Patents
Dentalmaterialien auf basis von monomeren mit debonding-on-demand eigenschaften Download PDFInfo
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- WO2013034777A2 WO2013034777A2 PCT/EP2012/067679 EP2012067679W WO2013034777A2 WO 2013034777 A2 WO2013034777 A2 WO 2013034777A2 EP 2012067679 W EP2012067679 W EP 2012067679W WO 2013034777 A2 WO2013034777 A2 WO 2013034777A2
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- radical
- acid
- dental material
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- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims abstract 3
- -1 alkyl radical Chemical class 0.000 claims description 43
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- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 20
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- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- NLCKLZIHJQEMCU-UHFFFAOYSA-N cyano prop-2-enoate Chemical class C=CC(=O)OC#N NLCKLZIHJQEMCU-UHFFFAOYSA-N 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- BWUPRNSPZFPYEK-UHFFFAOYSA-N dichloro(diethyl)germane Chemical compound CC[Ge](Cl)(Cl)CC BWUPRNSPZFPYEK-UHFFFAOYSA-N 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- XVKKIGYVKWTOKG-UHFFFAOYSA-N diphenylphosphoryl(phenyl)methanone Chemical class C=1C=CC=CC=1P(=O)(C=1C=CC=CC=1)C(=O)C1=CC=CC=C1 XVKKIGYVKWTOKG-UHFFFAOYSA-N 0.000 description 1
- PODOEQVNFJSWIK-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethoxyphenyl)methanone Chemical compound COC1=CC(OC)=CC(OC)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 PODOEQVNFJSWIK-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 229940042795 hydrazides for tuberculosis treatment Drugs 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 description 1
- 239000002855 microbicide agent Substances 0.000 description 1
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 description 1
- YXAKNAQXSTZETP-UHFFFAOYSA-N n-(5-hydroxypentyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCCCCCO YXAKNAQXSTZETP-UHFFFAOYSA-N 0.000 description 1
- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- FZUGPQWGEGAKET-UHFFFAOYSA-N parbenate Chemical compound CCOC(=O)C1=CC=C(N(C)C)C=C1 FZUGPQWGEGAKET-UHFFFAOYSA-N 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- JVCXFJJANZMOCM-UHFFFAOYSA-N phenyl(trimethylgermyl)methanone Chemical compound C[Ge](C)(C)C(=O)C1=CC=CC=C1 JVCXFJJANZMOCM-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 150000004032 porphyrins Chemical class 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- ZJLMKPKYJBQJNH-UHFFFAOYSA-N propane-1,3-dithiol Chemical compound SCCCS ZJLMKPKYJBQJNH-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012966 redox initiator Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229940058287 salicylic acid derivative anticestodals Drugs 0.000 description 1
- 150000003872 salicylic acid derivatives Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- CHLCPTJLUJHDBO-UHFFFAOYSA-M sodium;benzenesulfinate Chemical compound [Na+].[O-]S(=O)C1=CC=CC=C1 CHLCPTJLUJHDBO-UHFFFAOYSA-M 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 150000003455 sulfinic acids Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- BGQMOFGZRJUORO-UHFFFAOYSA-M tetrapropylammonium bromide Chemical compound [Br-].CCC[N+](CCC)(CCC)CCC BGQMOFGZRJUORO-UHFFFAOYSA-M 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 125000005409 triarylsulfonium group Chemical group 0.000 description 1
- 150000003918 triazines Chemical class 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- XASAPYQVQBKMIN-UHFFFAOYSA-K ytterbium(iii) fluoride Chemical compound F[Yb](F)F XASAPYQVQBKMIN-UHFFFAOYSA-K 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/47—One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/15—Compositions characterised by their physical properties
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
- A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- A61K6/889—Polycarboxylate cements; Glass ionomer cements
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
- C07F3/06—Zinc compounds
-
- 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
- C08F122/00—Homopolymers 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
- C08F122/10—Esters
- C08F122/12—Esters of phenols or saturated alcohols
- C08F122/22—Esters containing nitrogen
Definitions
- the present invention relates to monomers with debonding on demand (DoD) properties and their use as monomer components in dental materials, in particular for the production of adhesives and cements.
- DoD debonding on demand
- Releasable adhesive bonds are becoming increasingly important in various fields of technology. Examples are the removal of components in the context of automated manufacturing processes, the repair of complex components with glued subcomponents or the simplification of the material separation during the recycling of such components at the end of the product life.
- the debonding of adhesive bonds can be achieved on-demand by setting the strength of the adhesive composite layer e.g. is significantly reduced by heating.
- DE 198 32 629 A1 describes an adhesive system for forming reversible adhesive compounds based on polyurethanes, polyureas or epoxy resins, in which an additional component can be activated by introduction of energy in such a way that degradation of the adhesive components takes place. For example, by the input of heat or radiation energy from blocked precursors, organic bases or acids can be released, which cause degradation of the adhesive resin.
- WO 2010/128042 A1 describes technical adhesive compositions for releasable adhesive bonds for aircraft or vehicle construction, which consist of a conventional adhesive matrix and a particulate expansion substance such as azodicarbonamide.
- the release of the components takes place by heating the adhesive bond at least to the expansion temperature of the expansion substance.
- the release of adhesive bonds inter alia, in orthodontics of importance, where brackets that are glued to correct dental malocclusions on the tooth surface, after correction without damage to the enamel must be removed again.
- simply softenable or separable cement composites would be advantageous.
- US 2007/0142498 A1 describes dental compositions containing thermally-controllable additives, e.g. contain thermoplastic polymers.
- US 2007/0142497 A1 describes dental compositions based on dimethacrylates having acid-labile tertiary carbonate groups and photoacids such as e.g. Triarylsulfonium salts. These compositions can be photocured with suitable initiators such as the bisacylphosphine oxide Irgacure 819 with light in the visible range (photobonding) and softened by irradiation with UV light at elevated temperature (photothermal debonding).
- suitable initiators such as the bisacylphosphine oxide Irgacure 819 with light in the visible range (photobonding) and softened by irradiation with UV light at elevated temperature (photothermal debonding).
- the invention has for its object to provide adhesive dental materials that are polymerizable, good substrate adhesion in particular to hard tooth substance and / or dental ceramics show and allow by supplying heat debonding from the substrate and thus especially for the production of adhesives or composite cements with debonding on demand Properties are suitable.
- thermolabile or photolabile polymerizable compound of the formula I [(Z'UQ -X)] * - ⁇ - [ ⁇ - ⁇ - ( ⁇ ') ⁇ ] ⁇
- T represents a thermolabile or photolabile group
- R, R 1 , R 2 and R 3 are each independently H or a Ci-C7-alkyl
- k, 1, m and n are each independently 1, 2 or 3.
- At least one Z 1 or Z 2 is a polymerizable group and at least one Z 1 or Z 2 is an adhesive group.
- those compounds of the formula I are preferred in which one of Z 1 and Z 2 is a polymerizable group and the other of Z 1 and Z 2 is an adhesive group.
- Z 1 and Z 2 are both a polymerizable group.
- the indication that a radical may be interrupted by a group such as -0- is understood to mean that the group is inserted into the carbon chain of the rest, that is bounded on both sides by carbon atoms ⁇ .
- the number of these groups is therefore at least 1 smaller than the number of carbon atoms, and the groups can not be terminal. According to the invention, radicals which are not interrupted by the groups mentioned are preferred.
- Q 1 are each independently absent or an (m + 1) -valent linear or branched aliphatic Ci-Cio-radical, by -0-, -C0-0-, -0-C0-, -CO-NR 3 - or -NR 3 -C0- may be under ⁇ broken,
- X and Y are each independently omitted or are -O-, -C0-0-, -0-C0-, -CO-NR 3 - or -NR 3 -C0-,
- Each R is independently H, CH3 or C 2 H 5 ,
- Each R 1 is independently H or CH 3,
- Each R 2 is independently H, CH 3 or C 2 H 5, Each R is independently H, CH 3 or C 2 H 5 and / or
- k, 1, m and n are each independently 1 or 2.
- T is a thermolabile group.
- Preferred compounds of the formula I are those in which
- Each independently represents Q 1 or stands for an (m + 1) -valent linear or branched aliphatic C 1 -C 10 -io radical represented by -O-, -S-, -CO-O-, -O-CO-, -CO -NR 3 - or -NR 3 -CO- may be interrupted,
- Q 2 each independently is absent or is an (n + 1) -valent linear or branched aliphatic C 1 -C 10 radical which is represented by -O-, -S-, -CO-O-, -O-CO-, -CO -NR 3 - or -NR 3 -CO- may be interrupted,
- X and Y are each independently selected or are -O-, -S-, -CO-O-, -O-CO-, -CO-NR 3 - or -NR 3 -CO-,
- R 1 , R 2 and R 3 are each independently H or a C 1 -C 7 -alkyl radical and
- k, 1, m and n are each independently 1, 2 or 3.
- those compounds of the formula I are preferred in which one of Z 1 and Z 2 is a polymerizable group and the other of Z 1 and Z 2 is an acidic group.
- Q 1 are each independently absent or an (m + 1) -valent linear or branched aliphatic Ci-Cio-radical, by -0-, -CO-O-, -O-CO-, -CO-NR 3 - or -NR 3 -CO- may be under ⁇ broken,
- Q 2 is in each case independently of one another or is an (n + 1) -valent linear or branched aliphatic C 1 -C 10 radical which is represented by -O-, -CO-O-, -O-CO-, -CO-NR 3 - or -NR 3 -CO- may be under ⁇ broken,
- X and Y each independently omitted or for -O-, -CO-O-, -O-CO-,
- Each R 1 is independently H or CH 3,
- Each R 2 is independently H, CH 3 or C 2 H 5,
- Each R 3 is independently H, CH 3 or C 2 H 5 and / or
- k, 1, m and n are each independently 1 or 2.
- thermolabile groups are known per se. These are characterized according to the invention in that they contain one or more thermolabile covalent bonds.
- Preferred thermally labile groups having thermolabile covalent bonds include thermolabile cycloaddition adducts such as Diels-Alder adducts, hetero-Diels-Alder adducts, and thermolabile alkoxyamine, oxime ester, oximurethane, or azo groups. Examples of thermolabile groups are also described in RJ Wojtecki et al. , Nature Materials 2011, 10, 14-27. In particular, those compounds of the formula I are preferred in which T is a thermolabile group which is selected from the group consisting of:
- R is H or a C 1 -C 10 -alkyl radical
- R 5 is H, a C 1 -C 5 -alkyl radical, F or CN,
- R 6 is H, a C 1 -C 5 -alkyl radical, F or CN,
- Each R 9 is independently CH 3 , C 2 H 5 , OCH 3 or OC 2 H 5 and
- p is each independently 0, 1, 2 or 3.
- thermolabile polymerisable compound of the formula I is a Diels-Alder adduct of the formula II:
- formula II wherein the specified variables have the meanings defined above. According to the invention, formula II comprises both pure exo products or pure endo products as well as mixtures of exo and endo products.
- CH 2 CR 1 -CO-NR 2 - or preferably for an adhesive group selected from -Si (OR) 3 , -COOH, -O-PO (OH) 2 , -PO (OH) 2 , -SO 2 OH and - SH stands,
- Q 1 each independently or for a (m + 1) -valent linear or branched aliphatic Ci-Cis radical, preferably ⁇ a Ci-Cio radical, preferably a Ci-Cs radical, in particular ⁇ special a C2 ⁇ C6 Radical and particularly preferably a C 1 -C 2 radical which is represented by -O-, -CO-O-, -O-CO-, -CO-NR 3 -, -NR 3 - CO-, -O-CO -NR 3 -, -NR 3 -CO-O- or -NR 3 -CO-NR 3 - may be interrupted,
- Q 2 each independently or for a (n + 1) -valent linear or branched aliphatic Ci-Cis radical, preferably ⁇ a Ci-Cio radical, preferably a Ci-Cs radical, in particular ⁇ special a C2 ⁇ C6 Radical and particularly preferably a C 2 -C 3 radical which is represented by -O-, -CO-O-, -O-CO-, -CO-NR 3 -, -NR 3 -
- CO, -O-CO-NR 3 -, -NR 3 -CO-O- or -NR 3 -CO-NR 3 - may be interrupted, Each R is independently CH 3 or C 2 H 5 ,
- Each R 1 is independently H or CH 3 ,
- Each R 2 is independently H, CH 3 or C 2 H 5 ,
- Each R 3 is independently H, CH 3 or C 2 H 5 ,
- R 4 is H, CH 3 or C 2 H 5 ,
- R 5 is H, F or CN and in particular H,
- R 6 is H, F or CN and in particular H is and / or
- n and n are each independently 1 or 2.
- Q 1 is a methylene or ethylene radical
- Q 2 is an ethylene or propylene radical
- Each R is independently CH 3 or C 2 H 5 ,
- Each R 1 is independently H or CH 3 ,
- Each R 2 is independently H, CH 3 or C 2 H 5 ,
- Each R 3 is independently H, CH 3 or C 2 H 5 ,
- R 4 is H, CH 3 or C 2 H 5 ,
- R 5 is H, F or CN and in particular H,
- R 6 is H, F or CN and in particular H is and / or
- n 1
- T is a photolabile group.
- Suitable photolabile groups are known per se. This drawing ⁇ NEN usually is characterized in that it comprises one or more contain photolabile covalent bonds.
- Preferred photolabile groups having photolabile covalent bonds include benzoin ethers, oxyalkylphenylacetophenones, dialkyloxyacetophenones, benzoyldiphenylphosphine oxides, dibenzoylphenylphosphine oxides, dialkylbenzoyl and dialkyldibenzoylgermanium derivatives.
- T is a photolabile group which is selected from the group consisting of:
- Each R independently is a Ci-Cio _ alkyl radical
- Each R 8 is independently a C 1 -C 7 -alkyl radical
- R 9 are each independently CH 3, C 2 H 5, OCH 3 or OC 2 H 5, and
- p is each independently 0, 1, 2 or 3.
- dental materials are particularly preferred in which the photolabile polymerizable compound of the formula a dibenzoylphenylphosphine oxide of the formula III or a dialkyldibenzoylgermanium derivative of the formula IV is:
- Each Q 1 independently or for a (m + 1) -valent linear or branched aliphatic Ci-Cis radical, preferably ⁇ a Ci-Cio radical, preferably a Ci-Cs radical, in particular ⁇ special a C 2 ⁇ C6 radical and particularly preferably a C 1 -C 2 radical which is represented by -O-, -CO-O-, -O-CO-, -CO-NR 3 -, -NR 3 -CO-, -O -CO-NR 3 -, -NR 3 -CO-O- or -NR 3 -CO-NR 3 - may be interrupted, each independently or for a (n + 1) -valent linear or branched aliphatic Ci-Cis radical, preferably ⁇ a Ci-Cio radical, preferably a Ci-Cs radical, in particular ⁇ special a C 2 -C6 ⁇ And particularly preferably a C 2 -C 3 radical which is represented by -O-, -CO-O-
- Y are each independently omitted or for -O-, -CO-O-, -O-CO-, -CO-NR 3 -, -NR 3 -CO-, -O-CO-NR 3 -, -NR 3 - CO-O- or -NR 3 -CO-NR 3 - stand,
- each independently is CH 3 or C 2 H 5 ,
- each independently is a Ci-Cs-alkyl radical and and n are each independently 1 or 2.
- Q 1 are each independently absent or an (m + 1) -valent linear or branched aliphatic Ci-Cs radical, in particular a C 2 -C 6 sondere ⁇ ⁇ radical and more preferably a Ci-C 2 - radical, interrupted by - O-, -CO-O- or -O-CO- may be interrupted,
- Q 2 is in each case independently of one another or is an (n + 1) -valent linear or branched aliphatic C 1 -C 8 radical, in particular a C 2 -C 6 radical and particularly preferably a C 2 -C 3 radical which is represented by -O- , -CO-O- or -O-CO- may be interrupted,
- X and Y are each independently omitted or are -O-, -CO-O- or -O-CO-, Each R is independently CH 3 or C 2 H 5 ,
- Each R 8 is independently a C 1 -C 4 alkyl radical and m and n are each 1. Particularly preferred are compounds in which all variables each have one of the preferred meanings defined above.
- the inventive dental materials containing at least one thermolabile and / or photolabile polymerizable compound of formula I and preference ⁇ , at least one thermolabile polymerizable compound of the formula II and / or a photolabile polymerizable Verbin ⁇ dung of the formulas III or IV contain, after the polymerization on the one hand excellent mechanical properties and excellent adhesion to hard tooth substance and dental ceramics and on the other hand can be easily detached from the substrate by heat (thermolabile compounds) or by irradiation of UV light or visible light (photolabile compounds).
- the polymerizable Diels-Alder adducts of the formula II can be easily prepared.
- suitably functionalized furan derivatives with suitably N-functionalized maleimides under typical Diels-Alder reaction conditions and in particular at 80-120 ° C, for example in aromatic solvents and optionally with the addition of a suitable catalyst (for example, Bronsted or Lewis Acids) and of a polymerization inhibitor (cf., Authorenkollektiv, Organikum, Wiley-VCH, 21st ed., Weinheim, etc., 2001, 330 ff.)
- a suitable catalyst for example, Bronsted or Lewis Acids
- a polymerization inhibitor cf., Authorenkollektiv, Organikum, Wiley-VCH, 21st ed., Weinheim, etc., 2001, 330 ff.
- furan derivatives are commercially available, for example, furfural, furfuryl alcohol or furoic acid (see FIG. Ullmann's Encyclopedia of Industrial Chemistry, 5 th Ed., Vol. A 12, VCH, Weinheim, etc. 1989, page 119 ff.).
- Substituted furan derivatives can be produced (see FIG. W. Walter, W. Francke, Walter Beyer- textbook of organic chemistry, S. Hirzel Verlag, Kostas ⁇ cooked and Stuttgart, for example by Paal-Knorr synthesis by heating the corresponding 1,4 diketo 2004, 24th edition, page 769).
- Maleimides functionalized with polymerizable or strongly acidic groups are most easily prepared by reaction of maleic anhydride with correspondingly functionalized amines.
- the synthesis of the Diels-Alder adducts of the formula II can also be carried out in a stepwise manner so that first of all a suitable Diels-Alder adduct is prepared from a suitably functionalized maleimide and furan derivative, and only then the introduction of the polymerizable or the strong acid groups are carried out, the syntheses are optionally carried out using protective groups.
- the above mentioned example Diels-Alder adduct with a polymerized ⁇ sierbaren methacrylate and a strongly acidic phosphonic Group are also prepared so that first of the example with a tetrahydropyranyl (THP) group protected furfuryl alcohol with N- (3-bromopropyl) maleimide is converted to the Diels-Alder adduct.
- THP tetrahydropyranyl
- the THP protective group can be split off again, the OH group formed, for example, with methacrylic anhydride ( MAAH) and finally the phosphonic acid group is released hydrolytically:
- thermolabile Diels-Alder adduct of the formula II according to the invention are:
- the dental materials according to the invention preferably comprise one or more additional free-radically polymerizable monomers (co-monomers), in particular monofunctional or polyfunctional (meth) acrylic acid derivatives.
- monofunctional (meth) acrylic acid derivatives are meant compounds having a polyfunctional (meth) acrylic acid derivatives with two or more, preferably 2 to 4 (meth) acrylic acid groups.
- Polyfunctional monomers have a crosslinking effect.
- Preferred mono- or polyfunctional (meth) acrylic acid derivatives according to the invention are methyl, ethyl, hydroxyethyl, butyl, benzyl, tetrahydrofurfuryl or isobornyl (meth) acrylate, bisphenol A di (meth) acrylate, bis-GMA (a Addition product of methacrylic acid and bisphenol A diglycidyl ether), UDMA (an addition product of 2-hydroxyethyl methacrylate (HEMA) and 2,2,4-trimethylhexamethylene diisocyanate), di-, tri- or tetraethylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, glycerol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1, 10-decanediol di (meth)
- Particularly preferred mono- or polyfunctional (meth) acrylic acid derivatives are ⁇ N-mono- or -disubstitiu dressed acrylamides such as N-ethyl acrylamide, N, -Dimethacrylamid, N- (2-hydroxyethyl) acrylamide or N-methyl-N- (2-hydroxyethyl ) acrylamide, N-monosubstituted methacrylamides such as N-ethylmethacrylamide or N- (2-hydroxyethyl) methacrylamide and N-vinylpyrrolidone and allyl ether.
- These mono ⁇ mers are characterized by a high degree of hydrolytic stability and are suitable because of their relatively low viscosity especially as diluting.
- Preferred polyfunctional (meth) acrylic acid derivatives with high stability to hydrolysis are crosslinking pyrrolidones such as 1,6-bis (3-vinyl-2-pyrrolidonyl) hexane, bisacrylamides such as methylene or Ethylenebisacrylamide and bis (meth) acrylamides such as N, '-diethyl-1,3-bis (acrylamido) -propane, 1,3-bis (methacrylamido) -propane, 1,4-bis (acrylamido) -butane or 1 , 4-bis (acryloyl) piperazine, which can be synthesized by reaction of the corresponding diamines with (meth) acrylic acid chloride.
- crosslinking pyrrolidones such as 1,6-bis (3-vinyl-2-pyrrolidonyl) hexane
- bisacrylamides such as methylene or Ethylenebisacrylamide
- bis (meth) acrylamides such as N
- thermolabile crosslinker monomers are also suitable according to the invention as co-monomers.
- Thermolabile crosslinker monomers have at least one thermolabile group between two polymerizable groups.
- examples are polyfunctional (meth) acrylates or (meth) acrylamides having at least one thermally labile group between two (meth) acrylic groups.
- Suitable thermolabile groups are basically the same groups as defined above for the compounds of the formula I and in particular thermolabile cycloaddition adducts such as Diels-Alder adducts, hetero-Diels-Alder adducts and thermolabile alkoxyamine, oxime ester, Oximurethane or azo groups.
- Examples are Diels-Alder adducts such as the Diels-Alder adduct of furfuryl methacrylate and N- (3- (methacryloyloxy) propyl) -maleimide, the reaction products of N-hydroxy (meth) acrylamide with di- or triisocyanates such as hexamethylene -1, 6-diisocyanate (HDI), 2,2,4-trimethylhexamethylene-1, 6-diisocyanate or the HDI trimer and products obtained by stoichiometric reaction of di- or tri ⁇ isocyanates with 1-hydroxymethylacrylates such as 1-hydroxy - Methylacrylklaster or with ß-ketoester (meth) acrylates such as 2-Acetoacetoxyethylmethacrylat be obtained.
- di- or triisocyanates such as hexamethylene -1, 6-diisocyanate (HDI), 2,2,4-trimethylhexamethylene-1, 6-di
- Gas-releasing thermolabile crosslinker monomers are also particularly suitable.
- Examples are the esterification products of azobis (4-cyanovaleric acid) with hydroxyalkyl (meth) acrylates such as hydroxyethyl (meth) acrylate or hydroxypropyl (meth) acrylate or with N- (hydroxyalkyl) (meth) acrylamides such as N- (5-hydroxypentyl) methacrylamide or N-methyl-N- (2-hydroxyethyl) acrylamide.
- the dental materials according to the invention can be used in addition to the thermally labile or photolabile polymerizable compound of the formula I and, where appropriate, the above-mentioned co-monomers also preferably free-radically polymerizable, acid group-containing monomers (adhesive monomers).
- Preferred acid groups are carboxylic acid groups ⁇ , phosphonic acid groups, phosphoric acid groups and sulfonic acid groups.
- Preferred monomers with polymerizable carboxylic acids are maleic acid, acrylic acid, methacrylic acid, 2- (hydroxymethyl) acrylic acid, 4- (meth) acryloyloxyethyltrimellitic anhydride, 10-methacrylo-oxydecylmalonic acid, N- (2-hydroxy-3-methacryloyloxypropyl) -N-phenylglycine and 4-vinylbenzoic acid.
- Preferred monomers with polymerizable phosphonic acid groups are vinylphosphonic acid, 4-vinylphenylphosphonic acid, 4-vinylbenzylphosphonic acid, 2-methacryloyloxyethylphosphonic acid, 2-methacrylamidoethylphosphonic acid, 4-methacrylamido-4-methylpentylphosphonic acid, 2- [4- (dihydroxyphosphoryl) -2 -oxa-butyl] -acrylic acid, 2- [4- (dihydroxyphosphoryl) -2-oxa-butyl] -acrylic acid ethyl and -2,4,6-trimethylphenyl ester.
- Preferred monomers having polymerizable phosphoric acid groups are 2-methacryloyloxypropyl mono- or dihydrogenphosphate, 2-methacryloyloxyethylmono- or dihydrogenphosphate, 2-methacrylyloxyethylphenylhydrogenphosphate, dipentaerythritol pentamethacryloyloxyphosphate, 10-methacryloyloxydecyldihydrogenphosphate, phosphoric mono (1-acryloylpiperidine-4 -yl) ester, 6- (methacrylamido) hexyl dihydrogen phosphate and 1,3-bis (N-acryloyl-N-propylamino) -propan-2-yl dihydrogen phosphate.
- Preferred monomers having polymerizable sulfonic acid groups are vinylsulfonic acid, 4-vinylphenylsulfonic acid and 3- (methacrylamido) propylsulfonic acid.
- mixtures of the aforementioned monomers are used.
- Preferred monomer mixtures contain, based on the total weight of the monomer mixture: 1 to 90 wt .-%, preferably 5 to 80 wt .-%, particularly 5 to 70 before Trains t ⁇ compound of formula I and especially of formula II, III and / or IV,
- 0 to 70 wt .-% preferably 1 to 60 wt .-%, particularly before Trains t ⁇ 5 to 50 and most preferably 10 to 30 wt .-% comonomer, and more particularly monofunctional and / or polyfunctional (meth) acrylates .
- 0 to 70 wt .-% preferably 1 to 60 wt .-% and particularly preferably 5 to 50 wt .-% thermolabile crosslinking monomer and 0 to 40 wt .-%, preferably 1 to 30 wt .-% and particularly preferably 5 bis 20 wt .-% adhesive monomer.
- the dental materials according to the invention preferably also contain an initiator for the free-radical polymerization.
- an initiator for the free-radical polymerization in particular in the case of thermolabile compounds of the formula I, preference is given to benzophenone, benzoin and derivatives thereof or ⁇ -diketones or derivatives thereof such as 9,10-phenanthrenequinone, 1-phenylpropan-1, 2-dione, diacetyl or 4, 4 'dichlorobenzil used.
- amines such as 4- (dimethylamino) benzoate, N, N-dimethylaminoethyl methacrylate, N, -Dimethyl-sym , -xylidine or triethanolamine used as a reducing agent.
- Norrish type I photoinitiators in particular acyl or bisacylphosphine oxides, monoacyltrialkyl or diacyldialkylgermanium compounds such as benzoyltrimethylgermanium, dibenzoyldiethylgerimium or bis (4-methoxybenzoyl) diethylgermanium. It is also possible to use mixtures of the various photoinitiators, for example dibenzoyldiethylgermanium in combination with camphorquinone and ethyl 4-dimethylaminobenzoate.
- redox initiator combinations for example combinations of benzoyl peroxide with N, N-dimethyl-sym. - xylidine or N, -dimethyl-p-toluidine used.
- redox systems consisting of peroxides and such reducing agents as e.g. Ascorbic acid, barbiturates or sulfinic acids are particularly suitable.
- the dental materials according to the invention may additionally contain a thermally gas-releasing additive.
- Suitable gaskaset- collapsing additives are for example azo compounds such as azodicarbonamide, 2,2'-azobisisobutyronitrile or 2,2'-azobis (4-cyano-pentanoic acid), N-nitroso compounds, hydrazides such as benzenesulfonyl hydrazide, Per ⁇ oxide such as dicumyl peroxide or acetonedicarboxylic. Examples of such compounds are described, for example, in St. Quinn, Plastics, Additives & Compounding 2001, 3, 16-21.
- the temperature can be adjusted in a manner known per se by the substituent pattern (compare D. Braun, R. Jakobi, Monatshefte Chemie 1982, 113, 1403-1414).
- the dental materials according to the invention may contain an additive which can convert irradiated electromagnetic radiation into heat.
- radiation-heat converters are organic, inorganic or organometallic or hybrid components capable of converting UV, NIR or IR radiation, visible light, microwave or radio wave radiation into heat to cleave thermolabile groups. Examples of these are UV, NIR or IR radiation absorbing dyes and pigments.
- dyes absorbing in the IR range are azo, methine, anthraquinone or porphyrin dyes.
- NIR radiation absorbing pigments are antimony and indium tin oxide, phthalocyanine pigments, carbon black, Ni and Pt dithiolene complexes.
- UV-absorbing compounds are benzotriazoles, triazines, benzophenones, cyanoacrylates, salicylic acid derivatives and hindered amine light stabilizers (HALS).
- additives that absorb in the frequency ⁇ range of microwaves (1 to 300 GHz) or radio waves (10 kHz to 1 GHz), are ferromagnetic ceramic materials, so-called ferrites, from the iron oxides hematite (Fe 2 Ü3) or magnetite (Fe3Ü 4 ) and other oxides as the metals Zn, Mn, or Ni and are commercially available as a powder.
- ferrites from the iron oxides hematite (Fe 2 Ü3) or magnetite (Fe3Ü 4 ) and other oxides as the metals Zn, Mn, or Ni and are commercially available as a powder.
- the dental materials according to the invention preferably also contain organic or inorganic filler particles in order to improve the mechanical properties or to adjust the viscosity.
- Preferred inorganic particulate fillers are amorphous spherical materials based on oxides such as Zr0 2 and T1O 2 or mixed oxides of S 1O 2, Zr0 2 and / or T1O 2 having a mean average particle size of 0.005 to 2 ym, preferably 0.1 to 1 ym , nanoparticulate or microfine fillers such as fumed silica or precipitated silica a mean average particle size of 5 to 200 nm, preferably 10 to 100 nm, mini fillers such as quartz, glass ceramic or glass powder having an average particle size of 0.01 to 10 ym, preferably 0.1 to 1 ym, and X-ray opaque fillers such as ytterbium trifluoride or nanoparticulate läres tantalum (V) oxide or barium sulfate having an average-average
- the invention dental materials can contain further additives, in particular solvents such as water or ethanol or corresponding solvent mixtures, as well as Example ⁇ example stabilizers, flavoring agents, coloring agents, microbicidal agents, fluoride ion-releasing additives, optical brighteners, and plasticizers.
- solvents such as water or ethanol or corresponding solvent mixtures
- Example ⁇ example stabilizers flavoring agents, coloring agents, microbicidal agents, fluoride ion-releasing additives, optical brighteners, and plasticizers.
- dental materials based on a thermally labile or photolabile polymerizable compound of the formula I and in particular of the formula II, III and / or IV which contain the following constituents: a) 0.1 to 50% by weight, in particular 1 to 40 wt .-%, preferably 2 to 30 wt .-% and particularly preferably 5 to 30 wt .-% Ver ⁇ compound of the formula I and especially of formula II, III and / or IV,
- Adhesives preferably contain from 0 to 20% by weight and cements and composites preferably from 20 to 80% by weight of filler.
- Adhesives preferably contain preferably from 0 to 60% by weight and more preferably from 1 to 50% by weight of solvent.
- Dental materials containing water as a solvent are preferred. Particularly preferred are dental materials containing 0 to 20 wt .-% and in particular 1 to 10 wt .-% water.
- the debonding properties of the dental materials according to the invention can be influenced in a targeted manner by the composition of the materials.
- the setting of a composition suitable for a particular purpose belongs to the general knowledge and skill of the skilled person.
- the concentration of thermolabile or photolabile components used i. in particular the thermolabile or photolabile polymerizable compound of the formula I and, if appropriate, the thermolabile crosslinker monomers and gas-releasing additives, the ability to specifically debond by heating to.
- the debonding properties can also be varied by selecting the comonomers, it being possible with the proportion of crosslinking monomers or by adding monofunctional monomers to vary the crosslinking density and thus also the strength and the modulus of elasticity.
- thermo-labile or photolabile polymerizable compound of formula I and preferably of the formula II, III and / or IV can be used insbeson ⁇ particular for the reversible fixing for example by brackets, crowns, or veneers (plated).
- the formation of a composite by curing of materials (adhesive or cement) based on the thermolabile or photolabile polymerizable compound of the first For debonding, the glued parts must be briefly heated to a temperature which is above the temperature at which the cleavage of the thermolabile bonds begins, or be irradiated with light of a suitable wavelength.
- a targeted energy supply for example via an IR radiation source or a laser done.
- inductive heating can be achieved by the action of an alternating magnetic field.
- thermolabile or photolabile polymerizable compound of the formula I and in particular of the formula II, III and / or IV for the preparation of dental materials, preferably adhesives or cements, more preferably self-etching adhesives or cements.
- Step 5 Methacrylic acid 3,5-dioxo-4- (3-phosphonooxy-propyl) -10-oxa-4-aza-tricyclo [5.2.1.0 2 ' 6 ] dec-8-en-1-ylmethyl ester (MATPA )
- An adhesive was made of 1.09 g of the phosphoric acid methacrylate MATPA from Example 1, 1.49 g of the monofunctional co-monomer 2-hydroxyethyl methacrylate, 3.25 g of the crosslinker Bis-GMA, 0.99 g of the crosslinker UDMA, 1.01 g of the crosslinker glycerol dimethacrylate, 0.02 g of the photoinitiator camphorquinone, 0.05 g of the amine accelerator 4- (dimethylamino) benzoic acid ester, 0.10 g of the acylphosphine oxide photoinitiator Lucirin TPO and 2.00 g of the solvent ethanol.
- the adhesive could be cured by means of a polymerization lamp Bluephase (Ivoclar Vivadent AG, light intensity 1000 mW / cm -2 ).
- Furfuryl alcohol (9.81 g, 100 mmol) was added dropwise to a suspension of sodium hydride (2.40 g, 100 mmol) in THF (100 mL). The suspension was stirred for 1 h at room temperature, then a solution of 2- (11-bromoundecyloxy) -tetrahydropyran (33.53 g, 100 mmol) in THF (100 mL) was added dropwise. The reaction mixture was heated at reflux for 16 h. After cooling, 4 C1 solution (100 ml) was quenched with aqueous NH gesnostitig ⁇ ter. The two-phase mixture was extracted with ethyl acetate (3x 100 ml).
- Step 5 Methacrylic acid-3- [3,5-dioxo-1- (11-phosphonooxy-undecyloxymethyl) -10-oxa-4-aza-tricyclo [5.2.1.0 2,6 ] dec-8-ene 4-yl] -propyl ester
- 3 primer solutions were prepared. These were solutions of in each case 1% by weight of the methacrylate phosphate from Example 5 (primer A), of the methacrylate phosphate from Example 6 (primer B) or of 10-methacryloyloxydecyl phosphate (primer C, comparison) in ethanol. To determine the bond strength, the respective primer solutions were applied to ZrO 2 ceramic test specimens (IPS e.max ZirCAD, Ivoclar Vivadent, yttrium-stabilized zirconium oxide) and the solvent was blown.
- IPS e.max ZirCAD Ivoclar Vivadent, yttrium-stabilized zirconium oxide
- the Multilink Automix (Ivoclar Vivadent) composite cement was applied to the primer layer and cured for 20 s with the Bluephase C8 LED lamp (Ivoclar Vivadent) and then for 3 min in the Spectramat (Ivoclar Vivadent) light furnace. Subsequently, the test specimens were stored in water at 37 ° C. for 24 h and the shear bond strength was determined analogously to the ISO guideline "ISO 1994-ISO TR 11405: Dental Materials Guidance on Testing of Adhesion to Tooth Structure". In a second series, the test specimens were stored after storage in water for an additional 60 minutes at 130 ° C in a drying oven and only then determines the shear adhesion after rapid cooling of the specimens.
- WL water storage
- WL + TB water storage
- the red solution precipitated a red precipitate.
- the suspension was filtered and the filtration residue was washed with acetonitrile (100 ml).
- To the filtrate were added tert-butyl methyl ether (200 ml) and saturated aqueous NaCl solution (100 ml).
- the phases were separated and the organic phase was washed with saturated aqueous NaCl solution (2 ⁇ 100 ml).
- the combined aqueous phases were then reextracted with tert-butyl methyl ether (100 ml).
- the red reaction solution was filtered through a pad of silica gel (S1O 2 , dichloromethane) and the filtrate was concentrated on a rotary evaporator.
- the oily red solid was added with n-hexane (100 ml), stirred at room temperature for 20 h and filtered.
- the filtration residue was washed with n-hexane (50 ml) and dried in a vacuum oven (50 ° C, 125 mbar). This gave 11.22 g (27.9 mmol, 78% yield) of a bright red solid.
- Lithium diisopropylamide (30% by weight in paraffin oil, 53.58 g, 150 mol) was added with diethyl ether (150 ml) and cooled to -5 ° C. Thereafter, isoprene monoxide (11.78 g, 140 mmol) was added dropwise. The reaction mixture was stirred at -5 ° C. for 3 h and then at room temperature for 1 h. Under ice-cooling, 2N hydrochloric acid (100 ml) was added and the phases were separated. The organic phase was washed with aqueous NaHCO 3 solution (5 wt%, 100 ml) and the combined aqueous phases were reextracted with diethyl ether (5x50 ml).
- Step 5 4- [4 (5) - (Methacryloyloxymethyl) -2-pyridin-2-yl-3,6-dihydro-2H-thiopyran-2-ylsulfanylmethyl] benzoic acid 2- (methacryloyloxy) ethyl ester
- the reaction mixture was further stirred overnight in a thawing ice bath, then water (200 ml) and ethyl acetate (400 ml) were added and the phases were separated.
- the organic phase was washed with water (2 x 125 ml) and the combined aqueous phases were reextracted with ethyl acetate (150 ml).
- the combined organic phases were washed with saturated aqueous NaCl solution (150 ml), dried over Na 2 S0 4 , filtered, concentrated on a rotary evaporator and dried on a fine vacuum. The residue was added with ethyl acetate (100 ml), and the suspension was stirred at room temperature.
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Abstract
Description
Claims
Priority Applications (9)
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US14/343,297 US9668946B2 (en) | 2011-09-08 | 2012-09-10 | Dental materials based on monomers having debonding-on-demand properties |
EP12761572.2A EP2753290B1 (de) | 2011-09-08 | 2012-09-10 | Dentalmaterialien auf basis von monomeren mit debonding-on-demand eigenschaften |
MX2014002747A MX351429B (es) | 2011-09-08 | 2012-09-10 | Materiales dentales basados en monómeros con propiedades de despegado según sea necesario. |
JP2014529018A JP6100262B2 (ja) | 2011-09-08 | 2012-09-10 | 必要に応じた剥離特性を有するモノマーに基づく歯科材料 |
CA2845885A CA2845885C (en) | 2011-09-08 | 2012-09-10 | Dental materials based on monomers with debonding-on-demand properties |
CN201280043640.XA CN103781456B (zh) | 2011-09-08 | 2012-09-10 | 基于具有按需脱粘特性的单体的牙科材料 |
KR1020147005273A KR102059210B1 (ko) | 2011-09-08 | 2012-09-10 | 온디맨드 탈착 특성을 갖는 단량체를 기초로 하는 치과용 재료 |
BR112014004526A BR112014004526A2 (pt) | 2011-09-08 | 2012-09-10 | materiais dentários à base de monômeros com propriedades de descolamento sob demanda |
RU2014113543A RU2627843C2 (ru) | 2011-09-08 | 2012-09-10 | Стоматологические материалы на основе мономеров, способные к разъединению по требованию |
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PCT/EP2012/067680 WO2013034778A2 (de) | 2011-09-08 | 2012-09-10 | Dentalmaterialien auf basis von verbindungen mit debonding-on-demand eigenschaften |
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EP (2) | EP2753290B1 (de) |
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CN (2) | CN103930085B (de) |
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EP2883528A1 (de) * | 2013-12-15 | 2015-06-17 | Ivoclar Vivadent AG | Dentalwerkstoffe auf Basis von polymerisierbaren Aziden und Alkinen |
EP2965740A1 (de) | 2014-07-11 | 2016-01-13 | Ivoclar Vivadent AG | Dentalmaterialien mit Debonding-on-Demand-Eigenschaften |
EP3156031A1 (de) | 2015-10-13 | 2017-04-19 | Ivoclar Vivadent AG | Polymerisierbare zusammensetzungen auf basis von thermisch spaltbaren verbindungen |
EP3621089A1 (de) | 2018-09-10 | 2020-03-11 | Ivoclar Vivadent AG | Partikel mit verbesserter farbabschirmung |
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EP3091037A1 (de) | 2015-05-07 | 2016-11-09 | Ivoclar Vivadent AG | Sulfonsäureester als regler in radikalischen polymerisationsreaktionen |
ES2710205T3 (es) * | 2015-12-21 | 2019-04-23 | Ivoclar Vivadent Ag | Materiales dentales con coloración reversible fotoinducida |
FR3064267B1 (fr) * | 2017-03-27 | 2021-07-23 | Arkema France | Compose reticulant, son procede de synthese, composition liquide comprenant ledit compose reticulant, son procede de polymerisation, et materiau obtenu apres polymerisation de ladite composition |
US10717261B2 (en) * | 2017-10-19 | 2020-07-21 | Bell Helicopter Textron Inc. | Selectively activated frangible bonding system |
JP7090884B2 (ja) * | 2018-04-02 | 2022-06-27 | 株式会社トクヤマデンタル | 高誘電率を有する官能基を有する酸性基含有重合性単量体 |
EP3640273A1 (de) * | 2018-10-16 | 2020-04-22 | Centre National De La Recherche Scientifique | Doppeldynamische polymere |
EP4127794A1 (de) | 2020-04-03 | 2023-02-08 | Covestro (Netherlands) B.V. | Selbstheilende optische fasern und zusammensetzungen zu ihrer herstellung |
WO2022178444A1 (en) * | 2021-02-22 | 2022-08-25 | Oregon Health & Science University | Dental adhesives formulated with secondary methacrylamides |
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US9522100B2 (en) | 2013-12-15 | 2016-12-20 | Ivoclar Vivadent Ag | Dental restorative materials based on polymerizable azides and alkynes |
EP2965740A1 (de) | 2014-07-11 | 2016-01-13 | Ivoclar Vivadent AG | Dentalmaterialien mit Debonding-on-Demand-Eigenschaften |
WO2016005540A1 (de) | 2014-07-11 | 2016-01-14 | Ivoclar Vivadent Ag | Dentalmaterialien mit debonding-on-demand eigenschaften |
EP3156031A1 (de) | 2015-10-13 | 2017-04-19 | Ivoclar Vivadent AG | Polymerisierbare zusammensetzungen auf basis von thermisch spaltbaren verbindungen |
WO2017064042A1 (de) | 2015-10-13 | 2017-04-20 | Ivoclar Vivadent Ag | Polymerisierbare zusammensetzungen auf basis von thermisch spaltbaren verbindungen |
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