Abstract: A powder coating composition comprising a multilayer polymer particle, in which at least one inner layer is a polymer layer having a glass transition temperature (Tg) of not over 20° C. and the outermost layer is a polymer layer having a Tg of not less than 60° C. and, the monomer components forming the polymer layer having a Tg of not over 20° C. are those having an unsaturated double bond in the molecule, and among the monomer components, a crosslinking monomer and a grafting monomer are used, respectively, within the ranges of 0.3 to 5 weight % and of 1 to 10 weight %, is dispersed in an amount of 1 to 30 parts by weight per 100 parts by weight of the total components other than the multilayer polymer particle can show excellent dispersibility to various powder coatings and can improve workability and impact resistance of a coat film while maintaining inherent characteristics of a powder coating such as appearance of a coat film and an anti-blocking property.

Abstract: A vapor deposition apparatus for supplying raw-material gas into a reactor to form a thin film on a wafer substrate disposed in the reactor by vapor deposition, including at least a rotator for mounting the wafer substrate thereon, a treatment gas introducing port, a straightening vane having plural holes, and a wafer substrate feed-in/out port, wherein the lowermost portion of the wafer feed-in/out port is located at a predetermined height from the upper surface of the rotator, and the difference in height between the lowermost portion of the wafer feed-in/out port and the upper surface of the rotator is set to be larger than the thickness of a transition layer of the upper portion of the rotator. In a vapor deposition method, a wafer substrate is mounted on the rotator to form a thin film having little defect and uniform film thickness on the wafer substrate by using the vapor deposition apparatus.

Abstract: There is provided a vapor deposition apparatus for forming a thin film which includes plural reaction gas supply ports at the top portion of a hollow reactor, an exhaust port at the bottom of the reactor, a rotational substrate holder provided inside the reactor on which a wafer substrate is mounted. A straightening vane having plural gas holes formed therein is provided on an upper portion of the reactor. The reactor is partitioned into upper and lower portions which have different inside diameters, with the inner diameter of the upper portion being smaller than the inner diameter of lower portion. The lower end of the upper portion and the upper end of the lower portion are linked by a linking portion which has a predetermined shape to make continuous the hollow inside of the reactor. A thin film is formed on the surface of a wafer substrate, which is placed on the rotational substrate holder, by supplying a reaction gas into the reactor.

Abstract: A vapor deposition apparatus includes a cylindrical hollow reactor having gas supply ports at its upper portion and an exhaust port at its bottom portion. A rotational substrate holder, which seats a wafer substrate, is concentrically placed inside the reactor. The reactor has a straightening vane having gas holes concentrically positioned at its upper portion. Reaction gas is supplied into the reactor to form a thin film on the surface of the wafer substrate on the rotational substrate holder by vapor deposition. In one embodiment, the straightening vane is configured so that the flow rate of the reaction gas in the center portion covering the area of the wafer substrate and the gas flow rate of the reaction gas in the outer portion of the center portion are different from each other. In another embodiment, the reactor is sectioned into upper and lower portions. The inner diameter of the upper portion is smaller than the inner diameter of the lower portion.

Abstract: The present invention provides a superior light-storing printed article, which includes a light-storing printed layer comprising 50-80 wt % of light-storing pigment having D50=22-35 .mu.m and D90=58-80 .mu.m based on the total amount of the light-storing pigment and the binder, and the thickness of the printed layer being 50-150 .mu.m.

Abstract: According to the present invention there is provided a cyanoacrylate adhesive composition having high shear bond strength, peeling bond strength and impact bond strength and superior particularly in hot-cold cycle resistance and heat resistance. The cyanoacrylate adhesive composition contains (a) a cyanoacrylate monomer, (b) an elastomer miscible or compatible with the cyanoacrylate monomer, and (c) a core-shell polymer having a core of a rubbery polymer and a shell of a glassy polymer, the core-shell polymer being compatible but not miscible with the cyanoacrylate monomer.

Abstract: A film-wrapped article consisting of a rectangular product wrapped with a heat-shrinkable plastic film in intimate contact therewith, the upper and under edge portions of the film being overlapped and sealed together along the body of the wrap to form a seal. A part of the seal on one side of the article is formed as a weakly joined zone whose adhesion strength increases by continuous or stepwise gradations from an opening zone where the adhesion strength is the lowest toward the both ends of the article. The weakly joined zone is made up of joined and unjoined regions extending along the interface between the upper and under edge portions, in a repetitive pattern of the regions varying in adhesion strength with changes in the area ratio of the joined and unjoined regions. The wrap has a cut for unwrapping use made in the opening or neighboring zone of the upper edge portion.

Abstract: A method for making plastic case blanks is disclosed. A molten plastic material is passed through a nip of a first, preforming pair of molding cylinders to form a semi-solidified sheet having a first thickness, The semi-solidified sheet is then molded to form a final sheet having a second, uniform thickness less than the first thickness and the final sheet is scored to form folding scores and cut to form a plurality of the blanks. The molding, scoring and cutting are simultaneously performed by passing the semi-solidified sheet through a nip of a second pair of cylinders. One of the second pair of cylinders has scoring means for forming the folding scores in the final sheet and cutting means for cutting the final sheet to form the plurality of the blanks and the other of the second pair of cylinders has recess means complementary to the cutting means for receiving the cutting means and effectuating the cutting.

Abstract: The invention thus provides a core-shell polymer comprising a core phase which is rubbery polymer and a shell phase which is a glassy polymer with an unsaturated dicarboxylic acid or its mono-alkyl ester as a constituent thereof, wherein the toluene-soluble fraction of the core-shell polymer accounts for not more than 10% by weight.It also provides polyamide resin compositions comprising said core-shell polymer and molded articles produced by molding said compositions.The resin compositions and molded articles which comprises the core-shell polymer as an impact modifier have good features, especially a high impact strength at temperature ranging from room temperature to -30.degree. C.

Abstract: An easy opening film package for wrapping cubic or rectangular shaped articles is prepared from a film having a printed portion containing ink and a compatible thermoplastic resin on one surface of the film. The film is wrapped around the article and heat sealed in the area of overlap of the film ends. The printed portion extends to the ends of the film and across the film over a width substantially coextensive with the width of the face of the article on which the seal is to be located.

Abstract: A multi-layered polymer having (a) a core layer of an aromatic vinyl polymer, (b) an intermediate layer of a butadienic rubbery polymer and (c) an outer layer of an aromatic vinyl glassy polymer, the amount of the components (a), (b) and (c) being 12 to 42 weight %, 48 to 78 weight % and 10 to 40 weight %, respectively, provides a thermoplastic resin composition excellent not only in impact strength, especially in impact strength at low temperatures, but also in, in the case of containing a coloring agent, color-stability including less mottlings, and giving a molded article improved in preventing occurrence of delamination around the gate region.

Abstract: The invention provides a core-shell polymer which comprises (a) a core phase having carboxyl groups on surface part of the core and (b) a shell phase which is a glassy polymer containing neither functional groups reactive to the the carboxyl group nor functional groups reactive to the amino group, wherein the toluene-soluble fraction is not higher than 10% by weight based on the whole core-shell polymer; polyamide resin compositions comprising said core-shell polymer; and molded articles produced by molding said compositions.Impact strength of the resin composition or its molded articles was improved by using the core-shell polymer.

Abstract: This invention relates to a core-shell polymer comprising (a) a core having epoxy groups on the surface and (b) a shell on the core (a) having neither epoxy group nor functional groups that are reactive with epoxy group, compositions of engineering plastics which are excellent in impact strength at low temperature and the molded articles of the resin composition.

Abstract: A casing for receiving a magnetic tape cassette comprises a transparent or semi-transparent casing main body 1 adapted to receive therein a magnetic tape cassette and a cover 3 pivotally supported by the casing main body by way of hinges 2, wherein a rib 10 for restricting the movement of the magnetic tape cassette in the direction of thickness of the casing main body 1 and a rib 9 for restricting the movement of the cassette in the longer side direction of the casing main body 1 are formed in the inner wall at a corner portion of the cover member.

Abstract: The invention relates to a core-shell polymer comprising (a) a core having epoxy groups on the surface and (b) a shell on the core (a) having neither epoxy group nor functional groups that are reactive with epoxy group, compositions of engineering plastics which are excellent in impact strength at low temperature and the molded articles of the resin composition.

Abstract: A casing for magnetic recording medium has a laminated structure in which a printed plastic film is bonded on one surface of a raw plastic sheet.

Abstract: A casing for magnetic recording medium has a laminated structure in which a printed plastic film is bonded on one surface of a raw plastic sheet.

Abstract: A package comprising a case which comprises a bottom member and a cover member, and a plurality of disk-form magnetic recording mediums, each having a central hole, which are contained in the case in a stacked state one on another while an upright pillar standing on the center of the bottom member is relatively inserted into the central holes of the disk-form magnetic recording mediums. The package may be tied from the outside by binding means or may be wrapped by a plastic film by means of a vacuum packing. The disk-form magnetic recording mediums packed in the case are protected from the dust and the moisture perfectly, and the damage of the recording mediums caused by the rubbing therebetween by vibrations or the like during the transit can be prevented by the upright pillar inserted into the holes of the recording mediums.

Abstract: A gas injection valve of a gas engine includes a valve body having a nozzle chamber with nozzle holes for injecting fuel gas, a first gas passage for introducing fuel gas, and a second gas passage communicable at one end to the first gas passage and at the other end to the nozzle chamber. A first needle valve closes and opens communication between the first and second gas passages. A second needle valve closes and opens communication between the second gas passage and the nozzle chamber. The first and second needle valves are urged in the closing direction thereof. A hydraulic actuator opens the two needle valves. An extreme tip of the first needle valve in closed state is disposed within and exposed to the interior of the second gas passage.

Abstract: A casing for holding a magnetic tape cassette which is formed into a box shape by bending and joining a blank of a transparent .[.blastic.]. .Iadd.plastic .Iaddend.plate material which has one surface, constituting the inner surface of a casing, on which grooves and a minutely roughened area are provided except for on a predetermined portion including at least one transparent window and the other surface, constituting the outer surface of said casing, on which printing and/or an uneven surface pattern is provided in a predetermined portion except for said transparent window.