- The phosphate group-containing polymerizable compound comprising a dental pretreatment material composition
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PROBLEM TO BE SOLVED: To provide a dental adhesive pretreatment material that can be applied to both of enamel and dentin even in an oral cavity, irrespective of the material of prosthesis.SOLUTION: A dental adhesive pretreatment material composition contains a phosphate group-containing polymerizable compound represented by formula (1), an inorganic filler, and a high viscosity solvent. [Ris H or an alkyl group; X is O, S or substituted/unsubstituted N; Y is an oxyalkylene group].SELECTED DRAWING: None
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Paragraph 0092-0093
(2021/02/25)
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- PRODUCTION METHOD OF PHOSPHORIC ACID ESTER-BASED METHACRYL MONOMER FOR DENTISTRY
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PROBLEM TO BE SOLVED: To provide a method with which generation of a pyrophosphoric acid diester compound having a (meth)acrylic group is suppressed in a production method of a phosphoric acid monomer composition for dentistry comprising a phosphoric acid ester compound having a (meth)acrylic group as a main component to be used as a raw material for a dental adhesive composition. SOLUTION: In a reaction process to obtain a reaction liquid including a phosphoric acid ester compound having a (meth)acrylic group, being a target compound, by bringing a phosphorodichloridate compound having a (meth)acrylic group, being a direct raw material compound, and water into contact with each other in the presence of an aprotic water-soluble organic solvent, and hydrolyzing the direct raw material compound, a method is characterized as conducting the contact by adding a solution of the direct raw material compound dissolved in the aprotic water-soluble organic solvent to water with an excessive amount by mole compared with an amount by mole of the direct raw material compound included in the solution and mixing them. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
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Paragraph 0063-0067
(2021/06/11)
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- METHOD FOR PRODUCING (METH)ACRYLATE COMPOUND CONTAINING HYDROXYL GROUP AND METHOD FOR PRODUCING (METH)ACRYLATE COMPOUND CONTAINING PHOSPHORIC ACID GROUP
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PROBLEM TO BE SOLVED: To provide a method for producing a (meth)acrylate compound containing a hydroxyl group, which, when producing a (meth)acrylate compound containing a hydroxyl group, can suppress formation of by-products. SOLUTION: Provided is a method for producing a (meth)acrylate compound (A) which is a (meth)acrylate compound containing a hydroxyl group, comprising a step of reacting an alcohol compound containing a halogen atom and a (meth)acrylic acid salt to obtain the (meth)acrylate compound (A). SELECTED DRAWING: None COPYRIGHT: (C)2021,JPOandINPIT
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Paragraph 0067
(2021/09/29)
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- Oral adhesive methacryloyl decyl dihydro phosphorus acid ester synthetic method
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The invention provides a synthetic method of 10-methacryloyloxydecyl dihydrogen phosphate. The method comprises the steps of preparing an intermediate 10-hydroxyldecanoyl methacrylate, preparing 10-methacryloyloxydecyl dimethoxy phosphate, and preparing the above target product. In the monoester synthesis process, a solvent-free reduced pressure distillation technology is adopted for the first time, so the environmental pollution problem caused by the use of an organic solvent is avoided, the cost is reduced, and unreacted raw materials can be recycled; in the phosphorylation process, trimethyl phosphite is adopted as an acylation reagent for the first time, and the reaction is carried out at room temperature under mild conditions, so the energy consumption is reduced, the environmental pollution problem caused by phosphorous oxychloride and other acylating agents is avoided, and the unreacted raw material 10-hydroxyldecanoyl methacrylate can be recycled; and a freeze-drying technology adopted in hydrolysis post-treatment avoids complicated operation of column chromatography and the mass use of an organic solvent, realizes low cost, environmental protection, mild reaction conditions, high product yield reaching 87.0% and high product purity, and is suitable for industrial production.
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Paragraph 0025; 0045
(2017/03/08)
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- SELF-ADHESIVE COMPOSITIONS INCLUDING A PLURALITY OF ACIDIC COMPOUNDS
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The present invention provides self-adhesive compositions that include a plurality of acidic compounds. The self-adhesive compositions are useful for applications including, for example, restoring dental structures and adhering orthodontic appliances to teeth.
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Page/Page column 28
(2008/06/13)
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- SELF-ETCHING DENTAL COMPOSITIONS AND METHODS
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The present invention is directed to dental compositions that can be used as adhesives for bonding a dental material to a dental structure surface and/or as a dental restorative material. The dental composition is preferably applied to a dental structure surface under conditions effective to etch the dental structure surface.
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Page/Page column 40
(2008/06/13)
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- Adhesive composition
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An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 100 parts by weight of a compound represented by general formula I or II: STR1 where R1 and R1 ' each stand for hydrogen or a methyl group, R2 stands for a divalent organic residue having 4 to 40 carbon atoms, X1 and X2 each stand for --O--, --S-- or --NH--, a is 0 or 1, and R3 stands for a group of the formula STR2 having 6 to 40 carbon atoms, where R4 and R4 ' each stand for a hydrocarbon group having 1 to 29 carbon atoms, and optionally replaced by a halogen atom, or a hydroxyl, amino or carboxyl group, b is an integer of 0 to 3, and Z stands for --O--, --COO-- or --NH--, a plurality of R4 ' (when b is 2 or 3) being the same or different, at least one of R4 and R4 ' having at least three carbon atoms, and (b) 0 to 98.5 parts by weight of a vinyl monomer copolymerizable with the above compound; and 0.01 to 20 parts by weight of a curing agent. It shows a superior adhesive strength on any of hard tissues in a living body, such as teeth and bones, metals, organic polymers and ceramics. It maintains a high adhesive strength for a long time even if it is exposed to moisture, or immersed in water. It is particularly effective for use in dentistry, though it is useful for a variety of other purposes, too.
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