38 results about "Self etch" patented technology

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.

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.

A self-etching, priming dental adhesive composition comprises an olefinically unsaturated monomer having an -SO3 functionality; a copolymerizable multi-functional (meth)acrylate adhesive; and a curing system. The self-etching, priming dental adhesive may further comprise a copolymerizable adhesion promoter containing an acid functionality, the adhesion promoter being different from the olefinically unsaturated monomer having an -SO3 functionality and the copolymerizable multi-functional (meth)acrylate adhesive, and a solvent system in an amount effective to dissolve the adhesive and / or the adhesion promoter. The adhesive composition provides even further advantages over the art, as all etching, priming, and application of an adhesive can be performed in one step.

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.

Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25° C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=AxB. The correlation value of the material to this curve is greater than 0.85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0.01.Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.

Stable self-etching copolymerizable primer compositions are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.

The invention discloses a self-etch amphiphilic dental adhesive and a preparation method thereof. The adhesive is a one-component adhesive and comprises the following components in parts by weight: 100 parts of polymerizable monomer, 0.2 to 0.8 part of photoinitiator, 0.1 to 0.5 parts of an accelerating agent, 0.001 to 0.5 parts of a polymerization inhibitor and 1 to 20 parts of filler; the polymerizable monomer comprises the following components in weight percent: 40% to 60% of resinous monomer, 1% to 10% of amphiphilic monomer, 2% to 10% of acidic monomer and 35% to 50% of dilute monomer. The self-etch amphiphilic dental adhesive provided by the invention can be used for acid etching of dentin, has the characteristic of amphipathicity, and is relatively high in bonding strenth; not only does the development of the adhesive update the conventional clinical adhesive, but also the adhesive has a relatively good dentin bonding effect.

A composition for simultaneously etching and priming a tooth surface prior to restoration, comprising a solution of an -SO3 terminated compound resin, and an optional fluoride source. In practice, the composition is applied to the tooth surface and not subsequently washed prior to application of an adhesive or other restorative material.

Two-part and one-part self-etching dental adhesives containing polymerizable acidic monomers. Methods include one-coat application without need for tooth etching.

The invention discloses a micro ultra-spectrum integrated optical filter and a manufacture method thereof. The invention takes melting quartz or glass, etc., as an optical base plate and is formed by the optical filters, each dimension of which is in a micron magnitude and with various optical characteristics on the base plate in two-dimensional arrangement. The ultra-spectrum integrated optical filter of the invention realizes the integration of the filters with various characteristics on the same base plate by being based on an optical film interference principle, alternately carrying out vacuum evaporation of high and low refractive index materials and the drying etching of a semiconductor and controlling the etching depth by using a self-etching stopping film. The invention utilizes the etching technique and self-stopping technology of a semiconductor technique for realizing an ultra-spectrum integrated optical filter with a single element smaller than 20 micron and independently designed optical characteristics. The invention has the advantages of simple manufacture technique and small size; can be combined with an optical imaging sensor to form a light, convenient and compact imaging spectrum apparatus with high distinguishing rate; and can be broadly used in atmosphere, ocean, space exploration and medicinal treatment diagnosing.

A self-etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step.

Stable self-etching copolymerizable primer compositions including are provided including compounds having a polymerizable ethylenically unsaturated groups and acidic groups, and optionally comonomers and suitable solvents. Such compositions are used in conjunction with dental adhesives to provide one or multi-component dental systems capable of etching or decalcifying tooth dentin and enamel without the need for a separate rinse step. Methods of use of such compositions according to the present invention include application for priming and imparting enhanced adhesion between the primers, adhesives, and the tooth substrates such as dentin or cut or uncut enamel, and subsequently applied dental composites, restoratives or other dental components.

Two-part and one-part self-etching dental adhesives containing polymerizable acidic monomers. Methods include one-coat application without need for tooth etching.

A self-etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step.

This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and / or light-activated free-radical initiators.

A self etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step. The cement composition comprises a polymerizable (meth)acrylate trimellitic acid / anhydride, a phosphoric acid (meth)acrylate, a hydroxyalkyl(meth)acrylate, copolymerizable multi-functional (meth)acrylate monomers, a diluent, fillers, and a curing system. These cement compositions are prepared as a two-paste system that is combined prior to use.

The invention discloses a method for preparing one-dimensional porous tin dioxide nano-tubes on an electric conduction substrate based on an in-situ self-etching template mechanism, and belongs to the field of inorganic chemistry and material synthesis. The method comprises: washing an electric conduction glass, preparing a ZnO precursor solution, growing a ZnO / electric conduction glass, preparing a SnO2 precursor solution, and growing SnO2 nano-tubes. According to the present invention, the method is characterized in that the two-step template method for preparing the SnO2 nano-tubes through the in-situ etching based on the self-produced alkaline environment without strong acid / alkali is achieved, the experimental steps are simplified, the product size is uniform, the cost is low, and the advantages of energy saving and environment protection are provided; and the method has the simple operation and provides the new idea for the large batch preparation of the SnO2 nano-tubes, and the prepared tin oxide has the large specific surface area and has wide application prospects in the fields of photocatalysis, solar cells, and the like.

Bond strength of a composite resin, an adhesive resin cement or the like to dentin or enamel of tooth is remarkably improved by treating the dentin or the enamel with a self-etching primer agent comprising an aqueous solution of a methacrylic acid derivative such as N-methacryloylglycin, N-methacryloyl-3-aminopropionic acid, N-methacryloyl-4-aminobutyric acid, N-methacryloyl-5-aminovaleric acid, N-methacryloyl-6-aminocaproic acid, N-methacryloyl-2-aminomethylphosphonic acid, N-methacryloyl-3-aminoethyl-phosphonic acid and N-methacryloyl-4-aminopropylphosphonic acid.

A dental self-etching primer composition and a dental self-etching primer kit comprising a mixture of (A) a polymerizable monomer, (B) a reducing inorganic compound containing sulfur, (C) a ketone-based solvent and (D) water and having a storage stability of 2 hours or longer at 65° C.

This invention describes an adhesive used for bonding dental and medical biomaterials to hard tissues via a molecular bridge formed from calcium-reactive amines and acrylic or methacrylic ester monomers to hard tissues such as enamel, dentin, and bone. This formulation consists of an acid-stable polymerizable compound with multi-functional acrylate cross-linkers. This formula provides good self-adherence without prior preparation of the hard tissue substrates. The formulation can contain chemical- and / or light-activated free-radical initiators.

The invention provides a photocurable self-etching all-in-one dental adhesive contains at least one acrylate or methacrylate monomer, at least one acidic component, at least one photoinitiator, at least one water-miscible solvent, water, and SiO<2> having a particle size of 5 to 100 nm and not agglomerated. The adhesive is, for example, suitable for adhering and fixing a direct filling raw material, or for fixing an indirect filling raw material which is produced in a work room, by being combined with an additional neutralizing layer and fixing cement.

A self etching, dental cement composition is provided having the advantage of not requiring a separate etching and bonding step. The cement composition comprises a polymerizable (meth)acrylate trimellitic acid / anhydride, a phosphoric acid (meth)acrylate, a hydroxyalkyl(meth)acrylate, copolymerizable multi-functional (meth)acrylate monomers, a diluent, fillers, and a curing system. These cement compositions are prepared as a two-paste system that is combined prior to use.

The invention relates to a self-etching magnesium alloy ball valve for pressure measurement of an underground pipeline and a preparation method of the self-etching magnesium alloy ball valve. A material of the self-etching magnesium alloy ball valve for pressure measurement of the underground pipeline comprises chemical components as follows: 7%-10.5% of Al, 1%-3% of Zn, 0.05%-0.3% of Mn, 3%-10% of Si, 0.5%-2% of Fe, 3%-10% of Cu, 0.01%-0.05% of Ni and the balance of Mg. The process for taking out the ball valve is simple and easy, the cost is low, and the efficiency is high; the ball valve is self-etched under the action of underground water after pressure measurement is finished, and a reverse discharging process of the ball valve is omitted.

The invention discloses a method for preparing a paper-based tin dioxide(SnO2) nanotube, and belongs to the field of inorganic material synthesis. The method comprises the following steps: early processing a paper substrate; depositing a ZnO seed layer; growing a paper-based ZnO nano-bar template; growing the paper-based SnO2 nanotube on an in-situ self-etching template. The method has the characteristics that paper with rich raw materials, low price, flexibility and easiness in degradation is selected, and the SnO2 nanotube is prepared based on a self-etching template machine. The method is low in cost, energy-saving and environment-friendly, is prepared from easily available raw materials, provides a new thought for preparation of paper-based SnO2 nanotubes, and lays foundation for construction of subsequent paper-based SnO2 flexible perovskite solar cell devices.

Coating compositions for cementitious substrates may be made from a multistage latex polymer; silane; and a water-soluble acid, acid anhydride or acid salt capable of etching or otherwise reacting with the surface of the substrate to provide improved coating adhesion. The silane my be present as a silane coupling agent distinct from the multistage latex polymer, or may be present as silane functionality on the multistage latex polymer. The coating compositions adhere well to cementitious substrates and have a self-etching capability which improves coating adhesion, especially near edges and corners.

A dental self-etching primer composition and a dental self-etching primer kit comprising a mixture of (A) a polymerizable monomer, (B) a reducing inorganic compound containing sulfur, (C) a ketone-based solvent and (D) water and having a storage stability of 2 hours or longer at 65° C.

The invention discloses a dual-liquid self-etching bonding composition for laser-prepared dentine. The dual-liquid self-etching bond composition comprises a self-etching bottom sizing agent composition and a bonding agent composition, wherein the self-etching bottom sizing agent composition comprises a polymeric monomer, water, a photo-polymerization initiator, an aqueous organic solvent, an inorganic filling material, a retardant, a stabilizer and additives; the bonding agent composition comprises the polymer monomer, the photo-polymerization initiator, the retardant, the additives and the inorganic filling material. The invention mainly aims to invent and develop a photo-curing dual-liquid self-etching bonding composition specific to the tissue characteristics of the laser-prepared dentine.