摘要:
It is intended to provide an optical three-dimensional object as will be described below which has a high impact resistance and is superior in dimensional accuracy, mechanical properties such as tensile strength, and other properties such as water resistance, moisture resistance and heat resistance, and a method of producing the same. An optical three-dimensional object includes multiple cured resin layers containing at least cured resin layer that has a sea-island microstructure in which fine island components of a polymer differing from a cured resin constituting the sea component and have a particle diameter of 20 to 2,000 nm are dispersed in the sea component made of the cured polymer; and a method of producing this optical three-dimensional object by stereolithographic molding method with the use of a photo curable resin composition containing a homogeneous mixture of a curable resin component for forming the sea component with a component (preferably a polyalkylene ether compound) for forming the polymeric island components.
摘要:
A photocrosslinkable substantially linear polyester polymer having sensitivity to visible light is provided which contains at least 10 mole %, based on the entire polymer, of units derived from a phenylenebis(.alpha.-cyanobutadienecarboxylic acid) and has a reduced viscosity of at least 0.2 dl/g. A typical use of the polymer is in making printing plates.
摘要:
It is intended to provide the following resin composition for stereolithography which is superior in storage stability and aging stability during operation, shows no increase in viscosity upon prolonged storage, has a high light-curing sensitivity and, therefore, makes it possible to produce, upon photo irradiation, an object by stereolithography, which is superior in dimensional accuracy, fabricating accuracy, water resistance, moisture resistance and mechanical properties at a high fabricating speed and a high productivity. A resin composition for stereolithography which is an actinic radiation-curable resin composition containing a cationic-polymerizable organic compound, a radical-polymerizable organic compound, a photo cationic polymerization initiator and a photo radical polymerization initiator, in which the photo cationic polymerization initiator contains a compound represented by the following formula (I) and having a purity of 80% or higher: wherein M represents an antimony atom or a phosphorus atom; and the broken line between S+ and MF6− represents an ionic bond.
摘要翻译:旨在提供以下用于立体光刻的树脂组合物,其在操作中的储存稳定性和老化稳定性优异,在长时间保存时不显示粘度增加,具有高的光固化灵敏度,因此可以在 照相照射,通过立体光刻法,在高制造速度和高生产率下尺寸精度,制造精度,耐水性,耐湿性和机械性能都优异。 一种用于立体光刻的树脂组合物,其是含有阳离子可聚合有机化合物,自由基可聚合有机化合物,光阳离子聚合引发剂和光自由基聚合引发剂的光化辐射固化树脂组合物,其中光阳离子聚合引发剂包含 由下式(I)表示的并且纯度为80%以上的化合物:其中M表示锑原子或磷原子; S +和MF6-之间的虚线表示离子键。
摘要:
It is intended to provide an optical three-dimensional object as will be described below which has a high impact resistance and is superior in dimensional accuracy, mechanical properties such as tensile strength, and other properties such as water resistance, moisture resistance and heat resistance, and a method of producing the same. An optical three-dimensional object includes multiple cured resin layers containing at least one cured resin layer that has a sea-island microstructure in which fine island components of a polymer differing from a cured resin constituting the sea component and have a particle diameter of 20 to 2,000 nm are dispersed in the sea component made of the cured polymer; and a method of producing this optical three-dimensional object by stereolithographic molding method with the use of a photo curable resin composition containing a homogeneous mixture of a curable resin component for forming the sea component with a component (preferably a polyalkylene ether compound) for forming the polymeric island components.
摘要:
It is intended to provide the following resin composition for stereolithography which is superior in storage stability and aging stability during operation, shows no increase in viscosity upon prolonged storage, has a high light-curing sensitivity and, therefore, makes it possible to produce, upon photo irradiation, an object by stereolithography, which is superior in dimensional accuracy, fabricating accuracy, water resistance, moisture resistance and mechanical properties at a high fabricating speed and a high productivity. A resin composition for stereolithography which is an actinic radiation-curable resin composition containing a cationic-polymerizable organic compound, a radical-polymerizable organic compound, a photo cationic polymerization inhibitor and a photo radical polymerization inhibitor, in which the photo cationic polymerization inhibitor contains a compound represented by the following formula (I) and having a purity of 80% or higher: wherein M represents an antimony atom or a phosphorus atom; and the broken line between S+ and MF6− represents an ionic bond.
摘要:
An optical three-dimensional shaped item excelling in the smoothness of molding end face. There is provided a three-dimensional shaped item composed of, superimposed one upon another, multiple cured resin layers having a given configurational pattern formed by irradiating with actinic energy rays a molding face consisting of an actinic energy ray curable resin composition, wherein at least part of an uneven region of molding end face of the three-dimensional shaped item, the degree of unevenness thereof is reduced to smoothness by segregation of a component contained in the actinic energy ray curable resin composition and/or a substance derived from the component. Also, there is provided an actinic energy ray curable resin composition for the three-dimensional shaped item.
摘要:
A resin article comprising a shaped body of a synthetic resin having a surface, and a coated resin layer covering the surface of the shaped body, said coated resin layer being made of an amino group-containing polymer and/or a polymer containing (meth) acrylate of (iso)cyanuric acid as a constituent unit and having a top surface, wherein the top surface of the coated resin layer is chemically converted to have an anti-static property by chemical reaction with a quaternary compound-forming reagent. Alternatively, a resin article having stable anti-static properties may comprise a shaped body of a synthetic resin covered with an anti-static coating layer made of a reaction product of at least one of an amino group-containing alkoxy silane, an amino group-containing alkoxy titanium compund, or an oligomer thereof, with a quaternary compound-forming reagent.
摘要:
A polypyrrole shaped material characterized in that when the polypyrrole shaped material is assembled into a tri-electrode cell comprising the polypyrrole shaped material as a positive electrode, platinum as a negative electrode, a lithium metal as a reference electrode and LiClO.sub.4 or LiBF.sub.4 as an electrolyte and said tri-electrode and cell are subjected to discharging at a current density of 10 mA/cm.sup.2 and controlled-potential charging at 3.6 V, (i) at the completion of the discharging, the concentration of chlorine or fluorine in the polypyrrole shaped material is 30% or below of that at the completion of the charging, and (ii) at the completion of the charging, the distribution of chlorine or fluorine in the thickness direction of the polypyrrole shaped material is 50% or less. This polypyrrole shaped material enables charging and discharging at high current densities and has large charging and discharging capacities, and can therefore be utilized as an electrode for secondary battery.
摘要:
Benzil-di-(.beta.-succinimidoethyl)ketal of the following structural formula ##STR1## and novel benzil ketal derivatives thereof. The novel benzil ketal derivatives are characterized by having a structure in which a 5- or 6-membered cyclic imidecontaining group is bonded to each of the two oxygen atoms of ketal. Because these compounds have a high decomposition or sublimation temperature and the ability to initiate photopolymerization, they are useful as photopolymerization initiators in the production of photopolymerizable shaped articles from a molten blend of a photopolymerizable thermoplastic polymer composition.
摘要:
A resin composition suited for rapid prototyping is provided comprising (I) an actinic energy radiation-curable silicone composition, (II) an actinic energy radiation-sensitive polymerization initiator, and (III) an actinic energy radiation absorber. The resin composition experiences little viscosity buildup and maintains fluidity during long-term storage at elevated temperature, and is effective in rapid prototyping or shaping by stereolithography using any actinic energy radiation.