Abstract: The invention realizes easy manufacturing of a flat container molded by blow molding, in which the wall thickness of a container wall is made uniform, and which provides improved mechanical strength, heat resistance, etc. and has a good appearance. The flat container obtained by the blow molding of a polyester resin is characterized in that the container has a flatness ratio of not less than 1.3, and in that its body has a wall thickness ratio of a maximum wall thickness to a minimum wall thickness of not more than 1.6, a difference in elongation between a maximally stretched portion and a minimally stretched portion of not more than 150% in a tensile test at 95° C., a crystallinity of not less than 30%, and a difference in TMA non-load change between a maximally stretched portion and a minimally stretched portion of not more than 500 ?m at 75° C. and 100° C.

Abstract: The invention realizes easy manufacturing of a flat container molded by blow molding, in which the wall thickness of a container wall is made uniform, and which provides improved mechanical strength, heat resistance, etc. and has a good appearance. The flat container obtained by the blow molding of a polyester resin is characterized in that the container has a flatness ratio of not less than 1.3, and in that its body has a wall thickness ratio of a maximum wall thickness to a minimum wall thickness of not more than 1.6, a difference in elongation between a maximally stretched portion and a minimally stretched portion of not more than 150% in a tensile test at 95° C., a crystallinity of not less than 30%, and a difference in TMA non-load change between a maximally stretched portion and a minimally stretched portion of not more than 500 ?m at 75° C. and 100° C.

Abstract: The invention realizes easy manufacturing of a flat container molded by blow molding, in which the wall thickness of a container wall is made uniform, and which provides improved mechanical strength, heat resistance, etc. and has a good appearance. The flat container obtained by the blow molding of a polyester resin is characterized in that the container has a flatness ratio of not less than 1.3, and in that its body has a wall thickness ratio of a maximum wall thickness to a minimum wall thickness of not more than 1.6, a difference in elongation between a maximally stretched portion and a minimally stretched portion of not more than 150% in a tensile test at 95° C., a crystallinity of not less than 30%, and a difference in TMA non-load change between a maximally stretched portion and a minimally stretched portion of not more than 500 ?m at 75° C. and 100° C.

Abstract: The invention realizes easy manufacturing of a flat container molded by blow molding, in which the wall thickness of a container wall is made uniform, and which provides improved mechanical strength, heat resistance, etc. and has a good appearance. The flat container obtained by the blow molding of a polyester resin is characterized in that the container has a flatness ratio of not less than 1.3, and in that its body has a wall thickness ratio of a maximum wall thickness to a minimum wall thickness of not more than 1.6, a difference in elongation between a maximally stretched portion and a minimally stretched portion of not more than 150% in a tensile test at 95° C., a crystallinity of not less than 30%, and a difference in TMA non-load change between a maximally stretched portion and a minimally stretched portion of not more than 500 ?m at 75° C. and 100° C.

Abstract: A resin-coated metal sheet comprising a metal substrate and a thermoplastic resin layer formed on the surface of the metal substrate, wherein the thermoplastic resin layer comprises a polyester consisting chiefly of a polyethylene terephthalate and an ethylene polymer, and contains an ionomer resin as well as a tocopherol or a derivative thereof. The resin-coated metal sheet exhibits corrosion resistance, shock resistance (dent resistance) and resistance against high temperature and humidity, and withstands the retort-sterilization and the aging in a hot vendor or the like after the retort-sterilization.

Abstract: A resin-coated metal sheet comprising a metal substrate and a thermoplastic resin layer formed on the surface of the metal substrate, wherein the thermoplastic resin layer comprises a polyester consisting chiefly of a polyethylene terephthalate and an ethylene polymer, and contains an ionomer resin as well as a tocopherol or a derivative thereof. The resin-coated metal sheet exhibits corrosion resistance, shock resistance (dent resistance) and resistance against high temperature and humidity, and withstands the retort-sterilization and the aging in a hot vendor or the like after the retort-sterilization.

Abstract: A resin-coated seamless can satisfying such properties as high degree of workability, adhesiveness of film, resistance against high temperatures and wet heated condition, corrosion resistance and resistance against being dented. The resin-coated seamless can is formed of a resin-coated metal plate having substantially unoriented two layers including a lower layer on the inside of the can and a surface layer on the lower layer, wherein both of the layers comprise a polyethylene terephthalate/isophthalate having an intrinsic viscosity [&eegr;] of not smaller than 0.7, and the surface layer contains an isophthalic acid in an amount of from 3 to 13 mol %, and the lower layer contains the isophthalic acid in an amount of from 8 to 25 mol %, which is larger than that of the surface layer, and the degree of crystallization of the surface layer is larger than the degree of crystallization of the lower layer in the upper part of the can wall.

Abstract: The present invention provides a method for extruding polymer blend resin which is capable of satisfying performances which are necessary as a resin-coated metal can even when the resin-coated metal can is produced through an extremely stringent working such as drawing, deep drawing, bend-elongation by drawing, stretching or ironing. After feeding thermoplastic resin A to a biaxial extruder through a first raw material feed port of the extruder, the thermoplastic resin A is plasticized in a molten state and is subjected to degassing under reduced pressure. Thereafter, thermoplastic resin B whose melting temperature or softening temperature is lower than a melting temperature or a softening temperature of the thermoplastic resin A is fed to the extruder through a second raw material feed port. Assuming Lb as a length of a blending zone and D as a screw diameter of the extruder, the thermoplastic resin B is blended with the thermoplastic resin A in the blending zone of Lb/D=0.5 to 5.

Abstract: A resin-coated seamless can satisfying such properties as high degree of workability, adhesiveness of film, resistance against high temperatures and wet heated condition, corrosion resistance and resistance against being dented. The resin-coated seamless can is formed of a resin-coated metal plate having substantially unoriented two layers including a surface layer and a lower layer serving as a resin layer on the inner surface side of the can, wherein the surface layer comprises a polyethylene terephthalate/isophthalate containing an isophthalic acid in an amount of from 3 to 13 mol % and having an intrinsic viscosity [&eegr;] of not smaller than 0.7, and the lower layer comprises a polyethylene terephthalate/isophthalate containing the isophthalic acid in an amount of from 8 to 25 mol %, which is larger than that of the surface layer, and having an intrinsic viscosity [&eegr;] of not smaller than 0.

Abstract: A device for printing an image onto a surface, such as food containers, employs a laser that is scanned across a surface to produce a latent image on a charged photosensitive surface formed on the surface. The surface is moved relative to the laser source while the laser is activated and deactivated according to a pattern of signal pulses from a control circuit. The device thus forms a raster image. To form very fine images, the control circuit must produce pulses with very small steps in duration. The control circuit of the present invention divides a digital value representing a duration of firing of the laser into high and low order bit sequences. The high order bits, representing a value M, are applied to a counter that generates a first pulse M clock cycles long. The low order bits and the first pulse are applied to a delay circuit. The delay circuit generates a delayed version of the first pulse, which is delayed by an amount represented by the low order bits.

Abstract: Dots for producing a multiple tone electrostatic latent image are formed by selectively discharging a charged surface with a scanned laser beam. The multiple tones are produced by pulse width modulation of the laser beam according to the tones required in the dots. High resolution is maintained by limiting the diameter of toner particles to 1/5 to 5 times a minimum exposed dot dimension of less than 1 micron. A laser beam exposure device includes a galvanometer mirror from which the scanning laser beam is reflected. The galvanometer mirror is tilted in synchronism with the conveying direction of the surface being scanned in order to maintain focus of the laser beam on the surface.

Abstract: A printed metallic container comprising a metallic substrate provided with a titanium oxide-containing organic resin coat film layer as a substrate coat film for printing having a photosensitive characteristic of I.times.t.sub.1/2 <100 mW.multidot.sec/cm.sup.2 (I: light intensity, t.sub.1/2 : light attenuation half-life of surface potential).A multicolor printing method comprising continuously rotating and delivering a metallic containers, uniformly charging the containers wtih charge phases shifted and exposing the containers by moving light from a light source in synchronism with the rotation delivery of the containers.

Abstract: A multicolor printing method for printing multicolor picture images upon a material or object to be printed comprises the steps of, in accordance with a first embodiment of the invention, the formation of a multicolor toner image upon a flexible belt by means of electrophotographic printing methods or techniques, and the transfer of such multicolor toner image directly to the material or object to be printed, such as, for example, a container made of, for example, metal, paper, plastic, glass, or the like, by means of a thermo-transferring process. In accordance with a second embodiment of the invention, the multicolor toner image is formed upon a plastic film, which is laminated upon the flexible belt, by means of electrophotographic printing methods or techniques, and the plastic film is then transerred to and fused upon the container.

Abstract: Toners are sticked on a thin plate metal or a metallic container by electrophotographic-printing units (3), (4), and (5), and during the sticking processes, the toners are preliminarily fixed with a lower temperature and finally fixed with a higher temperature, thus being printed. A photoconductive material layer can be directly laminated on the surface of the thin plate metal or the metallic container or is disposed on a drum. A firm printed surface can be obtained by coating a finishing vanish on the toners.

Abstract: Disclosed is a metal vessel comprising an upper member and a lower member, each consisting of a coated cup-shaped formed metal body and a circumferential side seam being formed by lap-bonding the open ends of the upper and lower members to each other through an adhesive, wherein said coated cup-shaped formed metal body is composed of a metal blank having a coating of a vinyl chloride resin having a vinyl chloride unit content of 30 to 97% by weight and a glass transition temperature of at least 40.degree. C.

Abstract: Disclosed is a metal vessel comprising an upper member and a lower member, each consisting of a coated cup-shaped formed metal body and a circumferential side seam being formed by lap-bonding the open ends of the upper and lower members to each other through an adhesive, wherein said coated cup-shaped formed metal body is composed of a metal blank having a coating of a vinyl chloride resin having a vinyl chloride unit content of 30 to 97% by weight and a glass transition temperature of at least 40.degree. C.

Abstract: Disclosed is a hot-melt adhesive which comprises a copolyester of a dibasic acid component comprising 70 to 97 mole % of terephthalic acid and other dibasic acid with a polyhydric alcohol component comprising 70 to 97 mole % of 1,4-butane-diol, 3 to 30 mole % of diethylene glycol and up to 20 mole % of other polyhydric alcohol having 2 to 5 carbon atoms, said copolyester having a reduced viscosity of at least 0.6 dl/g as measured at a temperature of 30.degree. C. in a phenol/tetrachloroethane mixed solvent having a phenol/tetrachloroethane weight ratio of 60/40 at a polymer concentration of 0.25 g/100 ml, a glass transition temperature of at least 31.degree. C. and a crystallinity of 15 to 40 %.This hot-melt adhesive is excellent in the operation adaptability, and in the form of a film, the adhesive has an appropriate rigidity and a good dimension stability.

Abstract: Disclosed is a process for the preparation of metallic bottles which comprises lap-bonding circumferential open end portions of upper and lower members, each consisting of a formed cup of a metal, said process being characterized by using at least one thermoplastic resin adhesive having a water absorption of less than 2%, as measured at a temperature of 23.degree. C. and a relative humidity of 80%, and an elasticity contribution ratio [R(t).sub.t=1 ] of from 1.times.10.sup.-4 to 5.times.10.sup.-1, defined by the following formula:R(t).sub.t=1 =J(t).sub.rec,t=1 /J(t).sub.t=1wherein J(t).sub.t=1 represents a creep compliance at a time constant of 1 second when the adhesive is caused to creep at a temperature higher by 30.degree. C. than the melting point of the adhesive under a shear stress of 50 to 5,000 dyne/cm.sup.2, and J(t).sub.

Abstract: Disclosed is a metal bottle adhesive for lap-bonding upper and lower members, each consisting of a cup-like formed article of a metal, on the peripheral ends thereof, said adhesive comprising at least one high-molecular-weight thermoplastic resin having a post crystallinity .DELTA.Wc, defined by the following formula, of less than 20%:.DELTA.Wc=Wc.sub.II -Wc.sub.Iwherein Wc.sub.I stands for the crystallinity (%) of the adhesive which has been molten at a temperature higher by 30.degree. than the softening point thereof and then naturally cooled at room temperature, determined according to the density method, and Wc.sub.II stands for the crystallinity of the adhesive which has then been immersed in water maintained at 70.degree. C. for 10 hours and then naturally cooled and dried at room temperature, determined according to the density method,a shear creep compliance J(t).sub.t=2 hrs of less than 10.sup.-4 cm.sup.2 /hyne at 90.degree. C.

Abstract: Disclosed is a paint for a can which comprises an epoxy resin component formed by condensation of a dihydroxyl compound with an epihalohydrin and a curing agent component, said epoxy resin component containing terminal .alpha.-glycol groups at a concentration of 0.05 to 0.60 equivalent per Kg of the resin.This paint provides a coating capable of retaining a high adhesion even with the lapse of time and resisting a severe treatment such as retort sterilization.When this paint is applied to a bonded can, leakage of the content from the side seam with the lapse of time can be effectively prevented. When this paint is applied to a can provided with an easy-open can lid, occurrence of the enamel feather can be prevented at the time of opening the lid.