摘要:
An adhesive composition for dental use exhibiting acidic property, including a mixture of a polymerizable monomer component (A) containing a phosphoric acid-type polymerizable monomer having an acidic group derived from phosphoric acid, and a multivalent metal ion-releasing component (B), wherein the multivalent metal ion-releasing component (B) is capable of releasing at least earth metal ions, and in the composition, earth metal ions stemming from the component (B) are present together with the phosphoric acid-type polymerizable monomer in such an amount that a total valency ratio (RE) defined by the following formula (1) is in a range of 0.2 to 3.0. The adhesive composition is capable of strongly adhering and fixing a composite resin or a prosthetic material to a tooth for extended periods of time maintaining stability. RE=TVE/TVA (1) wherein TVE is a total valency of the earth metal ions contained in said composition, and TVA is a total valency of the acidic groups of the phosphoric acid-type polymerizable monomer contained in said composition.
摘要翻译:具有酸性的牙科用粘合剂组合物,包含含有磷酸酸性基团的磷酸型聚合性单体的聚合性单体成分(A)和多价金属离子释放成分(B)的混合物, 其中所述多价金属离子释放组分(B)能够至少释放地球金属离子,并且在组合物中,源自组分(B)的土金属离子与磷酸型可聚合单体一起存在于 由下式(1)定义的总化合价(RE)的范围在0.2〜3.0的范围内。 粘合剂组合物能够将复合树脂或修复材料牢固地粘附并固定在牙齿上,从而延长时间保持稳定性。 RE = TVE / TVA(1)其中TVE是所述组合物中所含的地球金属离子的总价,TVA是包含在所述组合物中的磷酸型可聚合单体的酸性基团的总价。
摘要:
A phase difference type resolver is adapted such that a calculator calculates an angle from a phase difference at a detection-signal zero cross point, determines a velocity at the angle based on an angle calculated from a phase difference at a previous detection-signal zero cross point, calculates an estimated angle at a next detection-signal zero cross point based on the velocity, divides a difference between the estimated angle and the angle into predetermined minimum detection angles, and outputs a real-time signal based on the minimum detection angles in a range after the angle but before the estimated angle.
摘要:
It is an object to provide a surface-treated steel sheet which contains no Cr, which is excellent in wet resin adhesion, and which can be used as an alternative to a conventional tin-free steel sheet and to provide a resin-coated steel sheet produced by coating the surface-treated steel sheet with resin. A surface-treated steel sheet including an adhesive layer which is disposed on at least one surface of the steel sheet and which contains Ti and at least one selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, the ratio of the total amount of Co, Fe, Ni, V, Cu, Mn, and Zn to the amount of Ti contained therein being 0.01 to ten on a mass basis, and a method for producing the surface-treated steel sheet.
摘要:
A zoom lens ZL installed in a single-lens reflex digital camera 1 and the like includes, in order from an object side, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a rear lens group GR having positive refractive power. The second lens group G2 includes at least one positive lens and a negative lens disposed adjacent to the object side of the positive lens having largest refractive power among the positive lenses. Each distance between lens groups varies upon zooming from a wide-angle end state and a telephoto end state. Thereby providing a zoom lens having excellent optical performance, an optical apparatus equipped the zoom lens, and a method for manufacturing the zoom lens.
摘要:
A manufacturing method of a clad board includes: sticking a releasing film to a pre-preg sheet; forming a non-through-hole or through-hole in the pre-preg sheet including the releasing film; filling the hole with conductive paste; peeling off the film; and heating and pressing a metal foil onto the pre-preg sheet. The clad board has a smooth face formed on one face or both the faces of the pre-preg sheet, so that the conductive paste is restrained from spreading in an interface between the pre-preg sheet and the releasing film. This structure can avoid short-circuit between circuits and prevent insulating reliability from lowering. As a result, an yield rate is improved, and a reliable circuit board is obtainable.
摘要:
A rice modifier, containing a granular material sieved over 0.5 mm-opening (32-mesh) sieve at a content of 5% by weight or more and 100% by weight of less, having thermal solubility of equal to or higher than 20%, and containing starch at a content of equal to or larger than 40% by weight.
摘要:
A process for producing a cyclic olefin random copolymer by copolymerizing ethylene with a specific cyclic olefin in the presence of a polymerization catalyst containing a transition metal catalyst component and a co-catalyst component, wherein in the process for producing a cyclic olefin random copolymer, at least one component of the transition metal catalyst component and the co-catalyst component is brought into contact with the cyclic olefin, and then brought into contact with the ethylene.