摘要:
The present disclosure provides cross-linker compounds that can produce desirable polymeric materials, polymer compositions, and/or photo-curable resins. Further provided herein are methods of producing cross-linker compounds, compositions, resins, devices, and polymeric materials. Also provided herein are methods of using cross-linker compounds, resins, and polymeric materials for the fabrication (e.g., via 3D printing) of medical devices, such as orthodontic appliances.
摘要:
A direct-current cable of an embodiment includes a conductive portion; and an insulating layer covering an outer periphery of the conductive portion, the insulating layer containing cross-linked base resin and inorganic filler, the base resin containing polyethylene, a BET specific surface area of the inorganic filler being greater than or equal to 5 m2/g, and a mean volume diameter of the inorganic filler being less than or equal to 5 μm, the mass ratio of the inorganic filler with respect to the base resin being greater than or equal to 0.001 and less than or equal to 0.05, and the cross-linked base resin being cross-linked by a cross-linking agent containing organic peroxide.
摘要:
A device for manufacturing an absorbent body includes: a shaping unit that includes a recessed portion and that makes liquid absorbent fiber and superabsorbent polymer to be deposited in the recessed portion, shaping the absorbent body; and a supply unit that supplies the liquid absorbent fiber and the superabsorbent polymer to the recessed portion. The recessed portion includes a protruding portion, and the protruding portion protrudes from a bottom surface and includes an inclined surface. In a cross section orthogonal to a ridge line of the protruding portion, an angle of the inclined surface with respect to a surface parallel to the bottom surface is greater than an angle of repose of the superabsorbent polymer and smaller than 90 degrees.
摘要:
Provided is a composition for forming underlying layer for imprints, which is excellent in surface flatness and adhesiveness. The composition for forming underlying layer for imprints comprises (A) a resin having an ethylenic unsaturated group (P), and a cyclic ether group (T) selected from oxiranyl group and oxetanyl group, and having a weight-average molecular weight of 1000 or larger; and, (B) a solvent.
摘要:
The present invention provides a polylactic acid film or sheet having tear strength so as not to break or tear during, for example, production or processing of the film or sheet or winding thereof into a roll, and causing neither melt nor deformation at high temperatures more than 100° C. In the polylactic acid film or sheet according to the present invention, the tear strength is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than ±3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than ±3% in the flow direction (MD).
摘要:
The present invention provides a separator including a separator substrate composed of a polylactic acid film or sheet having tear strength so as not to break or tear during production or processing of the separator. The separator is a separator including a separator substrate and a removable pressure-sensitive adhesive layer on at least one surface of the separator substrate, wherein the separator substrate is composed of a polylactic acid film or sheet comprising polylactic acid (A) wherein the tear strength of the film or sheet is not less than 100 N/mm when the film or sheet is torn at least in a flow direction (MD), a rate of dimensional change due to heating is not more than ±3% in the flow direction (MD) and a transverse direction (TD), and a rate of dimensional change due to loaded heating is not more than ±3% in the flow direction (MD).
摘要:
Disclosed is a mold-releasing agent comprising, as active ingredients, a graft copolymer (A) in which a polyalkylene glycol or an alkyl ether thereof is graft-copolymerized with a polyfluoro-1-alkene represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)bCH═CH2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3), and a polyfluoroalkylphosphonic acid represented by the general formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cP(O)(OH)2 (wherein n is an integer of 1 to 6, a is an integer of 1 to 4, and b is an integer of 1 to 3, and c is an integer of 1 to 3) or a salt thereof (B). The mold-releasing agent comprises, as an active ingredient, a compound having a perfluoroalkyl group containing 6 or less carbon atoms, which is said to have low bioaccumulation potential, and having mold release performance equivalent to or more than that of a mold-releasing agent comprising a compound having a perfluoroalkyl group containing 8 or more carbon atoms as an active ingredient.
摘要:
Molded products may be made by a process comprising preparing a structure comprising a block copolymer or a graft copolymer having two or more phases, wherein each phase is comprised of polymer chains, decomposing the polymer chains of at least one phase of the structure, and cleaning the structure with a supercritical fluid or a sub-critical fluid, thereby removing the decomposed polymer chains from the structure. Molded products made by this method have very low levels of residual solvents, can be manufactured at a relatively low temperature in a short period of time without using large amounts of organic solvents, and without discharging large amounts of liquid waste.
摘要:
A shrink film is provided which is superior in glossiness, mechanical strength, and rigidity, and which is also provided with a property of preventing natural shrinkage. The shrink film with excellent properties is produced by using a resin composition which is obtained by graft polymerization of copolymers of styrene and butadiene with styrene, methylmethacrylate, and butylacrylate. The thus obtained resin composition is extruded after melting and kneading, and drawn into a film in two directions, and exposed at a temperature within a temperature range for the thermal setting so as to obtain the orientation according to ASTM D1504 of the shrink film in range of 1.5 to 5.0 MPa.