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 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:
A novel method is proposed for improving the surface properties or, in particular, for reducing accumulation of static electricity on the surface of a shaped article of a vinyl chloride-based resin.The inventive method comprises first exposing the surface of the shaped article to low temperature plasma of a gas having no polymerizability in plasma and then bringing the plasma-treated surface into contact with a liquid which is inert to the resin, e.g. water, or an aqueous solution containing a surface active agent. The effect of the inventive method is so strong and durable that the treated surface remains anti-static even after 12 months after the treatment.
摘要:
Gramophone records made of a vinyl chloride based resin are subjected to a treatment with low temperature plasma of a gas having no polymerizability in the plasma condition. A markedly improved anti-static effect is imparted to the surface of the gramophone record which also becomes highly resistant to wearing so that the signal/noise ratio in playing of the gramophone record is remarkably improved even after many times of repeated playing of the record.
摘要:
A phonograph record molding composition formed by copolymerizing a vinyl aromatic monomer with an acrylic ester monomer in the presence of one or more waxes which composition is especially suitable for injection and compression molding and which is characterized by substantially improved wear resistance, particularly when compared to conventional polystyrene record molding materials. The compositions of this invention comprise about 90 to 98, preferably 94 to 97, weight percent of vinyl aromatic/acrylic ester copolymer (with the weight ratio of vinyl aromatic to acrylic ester of from about 10:1 to 40:1), about 1 to 9, preferably 3 to 6, weight percent of the wax component and about 0.1 to 3, preferably 0.1 to 0.8, weight percent of a suitable lubricant. Preferred copolymers are styrene/2-ethylhexyl acrylate and styrene/stearyl methacrylate copolymers.
摘要:
Novel sound reproduction molding compositions of good processing qualities are disclosed, based on copolymer of vinyl chloride and propylene. Records obtained therefrom, have good audio qualities and resistance to impact, thermal warpage and water blistering. Because of their high heat stability, formulations based on the vinyl chloride-propylene (VC/P) copolymers can be employed in making sound records not only by the usual compression molding techniques, but also by injection molding.
摘要:
Homopolymers of propylene or copolymers of propylene with C214 C10-alk-1-enes, which polymers are obtainable by polymerization of the corresponding monomers using metallocene catalysts are used for producing moldings such as injection-molded articles.
摘要:
A candle-powered aroma generator in a lantern format housing a candle holder within a cylindrical container provided with a translucent shell mounted on a base and having a removable cover thereover whose roof has a central well. Below the bottom of the well is the burning wick of a candle supported in the holder, the candle flame heating the bottom which then functions as a miniature hot plate. Received in the well and resting on the hot plate is a replaceable aroma cartridge within whose cavity is a porous pad that partitions the cavity into upper and lower air chambers. The lower chamber is in heat transfer relation to the hot plate and the upper chamber has a vent therein. The pad is impregnated with a volatile liquid fragrance, and the heated air in the lower chamber produces a positive pressure therein which forces the air through the pad to volatilize the fragrance. The resultant vapor is discharged into the atmosphere through the vent.
摘要:
A surface material for phonograph records prepared by subjecting a copolymeric vinyl resin powder incorporated with a small amount of a stabilizer to the hot blending treatment, melt-kneading the product under heating, cooling the same to ambient temperature to form a mass, granulating the mass, freezing the resulting granules with liquid nitrogen and grinding the frozen granules into powders; and a phonograph record prepared by adhering a film of the surface material to the surface of a record-forming disc, having a photograph or picture printed thereon, by way of fusion under heating and forming a microgroove thereon.
摘要:
Imperfections in the surface of information carrying discs, such as video discs, are avoided by an improved process of manufacture. A bead of photopolymerizable mass is moved between two surfaces, one of which is a patterned surface and the other is a surface to which the photopolymerizable mass will bond upon polymerizing. By moving the liquid mass across the patterned surface, air within the pattern is removed by the leading edge of the bead, reducing imperfections.