摘要:
The manufacture of information carrying discs (2) has required relatively slow processing because of the need to conform materials to exact mold shapes and to remove entrapped gases. The use of either preformed films or liquids provides different degrees of this problem. The use of a process whereby a bead of photopolymerizable liquid (14) is moved across the mold surface has been found to accurately fill the mold, remove air bubbles, and enable rapid replication of information carrying discs.
摘要:
The present invention relates a method of producing a data storage medium comprising the steps of: a) coating a layer comprising a polymer material onto at least a part of a template surface thereby to obtain a modified template surface; b) clamping the modified template surface produced in step (a) with a target surface thereby to obtain an assembly; and c) introducing a liquid to an environment of the assembly obtained in step (b) thereby to transfer the layer comprising the polymer material of the modified template surface onto at least an adjacent region on the target surface.
摘要:
The present invention relates to materials, methods and apparatuses for performing imprint lithography using amorphous metallic materials. The amorphous metallic materials can be employed as imprint media and thermoplastic forming processes are applied during the pattern transfer procedure to produce micron scale and nanoscale patterns in the amorphous metallic layer. The pattern transfer is in the form of direct mask embossing or through a serial nano-indentation process. A rewriting process is also disclosed, which involves an erasing mechanism that is accomplished by means of a second thermoplastic forming process. The amorphous metallic materials may also be used directly as an embossing mold in imprint lithography to allow high volume imprint nano-manufacturing. This invention also comprises of a method of smoothening surfaces under the action of the surface tension alone.
摘要:
The invention relates to the use of homopolymers from propylene or of copolymers from propylene with C2-C10-alk-1-enes, which can be obtained by polymerisation of the corresponding monomers with metallocene catalysts, for the production of moulded articles such as injection moulding articles.
摘要:
A disc-playing aroma generator whose appearance and function are analogous to those of a phono disc record player, the user when playing a selected aromatic disc enjoying an olfactory rather than an auditory experience. Each aromatic disc houses a supply of a liquid fragrance whereby when the disc is inserted in the player, an aromatic vapor is then discharged into the atmosphere. The disc is formed by a circular sheet of absorbent material impregnated with the liquid fragrance and sandwiched between a pair of annular plastic films which are peripherally joined to create a central zone exposing the impregnated sheet. In the player, heated air under positive pressure is forced through the central zone to volatilize the liquid to produce a vapor which is discharged through vents in the casing of the player. The aromatic disc is packaged in a transparent sleeve having circular spindle labels on both sides thereof which overlie the central zone to impart thereto the appearance of a conventional phone record and serving to identify the fragrance.
摘要:
A PVC/PVA copolymer composition for gramophone record manufacture can be stabilised in the absence of heavy metal ions by including therein 0.3 to 1.5% by weight of a fatty acid soap of an alkaline earth metal or zinc; 0.3 to 1.85% of sugar or polyol fatty acid esters; and 0.15 to 1.10% of fatty acid mixed glycerides.
摘要:
The present invention relates to materials, methods and apparatuses for performing imprint lithography using amorphous metallic materials. The amorphous metallic materials can be employed as imprint media and thermoplastic forming processes are applied during the pattern transfer procedure to produce micron scale and nanoscale patterns in the amorphous metallic layer. The pattern transfer is in the form of direct mask embossing or through a serial nano-indentation process. A rewriting process is also disclosed, which involves an erasing mechanism that is accomplished by means of a second thermoplastic forming process. The amorphous metallic materials may also be used directly as an embossing mold in imprint lithography to allow high volume imprint nano-manufacturing. This invention also comprises of a method of smoothening surfaces under the action of the surface tension alone.
摘要:
A resin for an information recording medium comprising a polymer characterized by having a crosslinked structure and a process for producing such a resin by charging a mold with a monomer component which comprises a monomer having at least two polymerizable double bonds and/or the prepolymer of the monomer and polymerizing the monomer component in the mold.