Abstract: A fusion thermal transfer recording sheet having a base layer (A) of a uniaxially stretched film containing 40 to 85 wt % of a thermoplastic resin and 60 to 15 wt % of an inorganic or organic fine powder; and a surface layer (B) of a uniaxially stretched film, provided on at least one surface of the base layer (A), containing 30 to 90 wt % of a thermoplastic resin and 70 to 10 wt % of an inorganic fine powder which has an average grain size equals to or smaller than that of the inorganic or organic fine powder contained in the base layer (A) and has a grain surface modified by hydrophilic treatment is disclosed. The fusion thermal transfer recording sheet is excellent in applicability to color fusion thermal transfer recording, applicability to thermal transfer bar code recording under a hot and humid atmosphere, and in ink adhesiveness.

Abstract: A superabrasive tool such as a superabrasive grindstone (101; 102), a superabrasive dresser (103; 104; 105) or a superabrasive lap surface plate (106) includes a base (20) of steel and a superabrasive layer (10) formed on the base (20). The superabrasive layer (10) includes superabrasive grains (11) consisting of diamond grains, cubic boron nitride grains or the like and a holding layer consisting of a nickel plating layer (16) and a bond layer (17), or a brazing filler metal layer (18), holding the superabrasive grains (11) and fixing the same onto the base (20). Grooves (12) or holes (14) are formed on flat surfaces (19) of the superabrasive grains (11) exposed from the holding layer (16, 17; 18). The holding layer (16, 17; 18) holding and fixing the superabrasive grains (11) so that the surfaces of the grains are partially exposed is formed on the base (20).

Abstract: Disclosed is a transparent film comprising a substrate layer (A) of a uniaxially stretched film containing 95 to 100 wt % of thermoplastic resin and 0 to 5 wt % of an inorganic or organic fine powder having an average particle size of 0.2 to 2 &mgr;m, a surface layer (B) of a uniaxially stretched film containing 85 to 99 wt % of a thermoplastic resin and 1 to 15 wt % of an inorganic fine powder having an average particle size of 0.7 to 3 &mgr;m and being provided on one surface of the substrate layer (A), and an adhesive layer (C) of a uniaxially stretched film containing 90 to 99 wt % of a thermoplastic resin having a melting point of 80 to 140° C. and containing 1 to 10 wt % of an inorganic or organic fine powder having an average particle size of 0.7 to 3 &mgr;m and being provided on the other surface of the substrate layer (A). The transparent label is characterized in that having an excellent transparency and suitability for in-mold forming.

Abstract: A magnetic resonance imaging apparatus generates an MR signal from an object by applying a gradient field pulse generated by a gradient field coil and a high-frequency magnetic field pulse generated by a high-frequency coil to the object in a static field, and reconstructs an image on the basis of the MR signal. The gradient field coil is housed in a sealed vessel. The internal air in the sealed vessel is exhausted by the pump to prevent noise. By controlling the operation of the pump using a control circuit, noise in imaging operation can be reduced more effectively.

Abstract: A synthetic paper made of a stretched resin film; said stretched resin film being obtained by stretching a resin film having as a support a resin composition which contains: (A) from 30 to 80% by weight of a crystalline polyolefin resin; and (B) from 70 to 20% by weight of milled calcium carbonate particles at a temperature lower than the melting point of said crystalline polyolefin resin employed as the component (A); and an inkjet recording paper made by using this synthetic paper. Because of having projections of finely milled calcium carbonate particles with a hydrophilic surface around which a number of fine cracks are formed, the synthetic paper shows improved moisture absorptivity for water color inks and aqueous adhesives, quick drying properties and excellent printability.

Abstract: The present invention provides a wire saw for use in cutting works of electronics materials or optical materials and a method for manufacturing the same, said wire saw having the following characteristic features. Namely, onto a high-strength core wire 2, abrasive grains 3 having a grain size not smaller than two-thirds the thickness of a layer of resin bond 4 on said core wire 2 but not exceeding a half the diameter of said core wire are fixed with said resin bond, said resin bond containing a filler having a grain size smaller than two-thirds the thickness of said resin bond layer. The thus structured and arranged wire saw has an improved efficiency and precision in cutting. The wire saw can be manufactured readily by using an enamelling oven.

Abstract: A gradient magnetic field generation apparatus according to the present invention comprises a gradient coil, an assistant voltage selector for generating first and second control signals in accordance with an input waveform signal, the first control signal being the same as or similar to, the input waveform signal, a delay circuit for delaying the first control signal for a first delay time, a delay circuit for delaying the second control signal for a second delay time, a main power for amplifying the delayed first control signal and applying a voltage to a gradient coil, an assistant power for generating an assistant voltage for assisting the main power in accordance with the delayed second control signal, and a delay controller for individually controlling the first and second delay times.

Abstract: A uniaxially stretched multilayered film obtained by uniaxially stretching a laminated film at a stretch ratio of from 3 to 10 to form many closed fine voids in each layer, said laminated film comprising a base layer (A) made of a resin composition comprising resinous ingredients comprising from 50 to 90% by weight crystalline polyolefin (a) and from 50 to 10% by weight thermoplastic resin (b) having a lower melting point than the crystalline polyolefin (a) and an inorganic fine powder (c) in an amount of from 0 to 35% by weight based on the sum of the weight of the resinous ingredients and, formed on at least one side of said base layer (A), a surface layer (B) made of a resin composition comprising from 20 to 80% by weight inorganic fine powder (d) and from 80 to 20% by weight crystalline polyolefin (e), said uniaxially stretching being conducted at a temperature lower than the melting point of said crystalline polyolefin (a) and lower than the melting point of said crystalline polyolefin (e) but at a tempe

Abstract: A pressure-sensitive transfer delivery sticker slip is described, which comprises (1) a monoaxially-stretched multi-layer film having an opacity of not less than 80% (as determined according to JIS P-8138) and a tensile modulus of not less than 2.times.10.sup.4 kgf/cm.sup.2 in the stretching direction (JIS K-7127) obtained by monoaxially stretching a laminated film having a surface layer (B) comprising a resin composition comprising from 60 to 80% by weight of a finely divided inorganic powder (B.sub.2) incorporated in from 20 to 40% by weight of a crystalline polyolefin (B.sub.1) laminated on at least one side of a core layer (A) comprising as a base a resin composition comprising from 1 to 30% by weight of a finely divided inorganic powder (A.sub.2) incorporated in from 70 to 99% by weight of a crystalline polyolefin (A.sub.1) at a temperature of not higher than the melting point of said crystalline polyolefins (A.sub.1, B.sub.

Abstract: An in-mold label with a coupon composed of a base layer having formed on the back side thereof an adhesive layer, in which said base layer comprises a biaxially stretched resin film, a part of the adhesive layer has a formation density of 50% or less to form a less adhesive zone, with at least one end of the less adhesive zone remaining non-adhesive to provide a stripping starting part having a width of from 5 to 10 mm measured from the end of the less adhesive zone to the direction of stripping and an area ratio of not more than 30% based on the total area of the less adhesive zone, the surface of the base layer corresponding to the less adhesive zone has printed thereon a coupon, and the periphery of the printed coupon is perforated. The in-mold label, after integrally molded with a resin container, suffers from no blister, and the coupon can easily be stripped off the container with fingers.

Abstract: A process for producing a labeled hollow container comprising inserting a label having a multi-layer structure into a hollow mold and blow molding a molten parison of thermoplastic resin C in the mold is disclosed, in which the label is composed of a base layer comprising thermoplastic resin A having on one side thereof a heat-sealable resin layer comprising a mixture of at least lower-melting thermoplastic resin B and higher-melting themoplastic resin B' both having a melting point at least 20.degree. C. lower than that of the themoplastic resin A, the mixture of themoplastic resins B and B' satisfying relationships:5<T.sub.mc -T.sub.mB' <8015<T.sub.mB -T.sub.mB <50wherein T.sub.mc is a melting point of thermoplastic resin C constituting the parison; T.sub.mB, is a melting point of higher-melting thermoplastic resin B'; and T.sub.

Abstract: A method of preparing an in-mold label is described in which a resin film is embossed to form a gravure pattern having from 60 to 200 roll-formed lines per inch. The embossed film is stretched and then coated on its embossed pattern side with a heat-sensitive liquid resinous adhesive in an amount of from 1 to 10 g/m.sup.2 on a dry resin basis. The applied adhesive is then dried to form an adhesive layer on the film. The in-mold label obtained by the present invention is excellent in printing suitability including feeding properties and ink adhesion, has an advantage that die-cutting for producing the label can be conducted at a high efficiency, and is less apt to develop blisters even under a wide range of molding conditions when used in in-mold application.

Abstract: A process for producing synthetic label paper which comprises preparing a multi-layer film comprising a film of a thermoplastic resin containing an inorganic fine powder having provided on the back side thereof a layer of a heat-sealable resin having a melting point lower than that of said thermoplastic resin, embossing the heat-sealable resin layer, and stretching the embossed multi-layer film at a temperature of from the melting point of said heat-sealable resin to a temperature lower than the melting point of said thermoplastic resin. The label paper, when used for in-mold decorating of a container, gives a blister-free appearance to a container, causes no deformation of a container, and exhibits sufficient nerve for fitting to an inner wall of a mold.

Abstract: In recording and/or reproducing signals on a tape running between supply and take-up reels on which the tape is wound, the tape position is detected by initially determining the radii of the outer turns of the tape on the supply and take-up reels with the tape in a reference position, generating signal pulses in response to rotation of the reels for movement of the tape from the reference position, counting the numbers of such signal pulses generated during movement of the tape from the reference position to an arbitrary tape position, and calculating at least one of the radii of the outer turns of the tape on the supply and take-up reels for the arbitrary tape position on the basis of the corresponding radii for the reference tape position and the numbers of the signal pulses counted during movement of the tape from the reference position to the arbitrary tape position.

Abstract: In an electrostatic recording material being composed of a multi-layered sheet support having an electroconductive layer and a dielectric layer formed successively thereon, the number of projections having a height of 10 .mu.m or more from the flat surface is limited to a maximum of 50 per 0.1 m.sup.2, so that the material has excellent properties and can produce prints of very high quality.

Abstract: Synthetic paper of multilayer resin films is described, comprising a base layer (1a) constituted by a biaxially stretched film made of the thermoplastic resin, and a laminate provided onto at least one of opposite surfaces of said base layer, said laminate including a paper-like layer (1b) and a surface layer (1c), said paper-like layer being constituted by a uniaxially stretched film made of a thermoplastic resin containing 8 to 65% by weight of inorganic fine powder, said surface layer being constituted by a uniaxially stretched film made of a thermoplastic resin, said surface layer having a thickness t satisfying the following expressionR.gtoreq.t.gtoreq.(1/10).times.Rin which R represents an average particle diameter of said inorganic fine powder existing in the paper-like layer.The synthetic paper is superior in paper supply property, in printability, in dryness of offset ink, and in surface strength and it is substantially free from paper dust trouble.

Abstract: A synthetic paper printable in high gloss comprises (1) a multilayer support, (2) a layer of a transparent film of a thermoplastic resin free from an inorganic fine powder formed on one surface of the support (1), and (3) a primer layer of a specific material. The support (1) comprises (1a) a base layer of a biaxially stretched film of a thermoplastic resin and a surface and a back layer (1b) and (1c) composed of a monoaxially stretched film of a thermoplastic resin containing from 8 to 65% by weight of an inorganic fine powder.

Abstract: A stretched film having excellent printing and writing properties and mechanical strength is produced by stretching a film molded from a styrene-grafted polyolefin resin in at least one direction. The styrene-grafted polyolefin resin is produced by heating an aqueous suspension containing 100 parts by weight of polyolefin resin particles, from 10 to 400 parts by weight of a styrene monomer, and a free radical polymerization initiator in an amount of from 0.01 to 1 part by weight per 100 parts by weight of the styrene monomer.

Abstract: A process for producing an oriented composite polyolefin resin film which comprises melt-laminating a polyolefin resin sheet for a paper-like layer on at least one surface of a monoaxially stretched polyolefin resin sheet for a substrate layer, and then stretching the resulting laminated sheet in a direction perpendicular to said monoaxially stretched direction. The polyolefin resin sheet for the substrate layer is a sheet of composite structure prepared by melt-extruding the specific compositions (A), (B), and (C) through a co-extrusion die in such a manner that a layer composed of the thermoplastic resin composition (A) is laminated on one surface of an intermediate layer composed of the polyolefin composition (B) containing a filler and a layer composed of the thermoplastic resin composition (C) is laminated on the other surface of the intermediate layer. Said polyolefin resin sheet for the paper-like layer is composed of a specific polyolefin composition (D) containing a filler.

Abstract: A water-soluble coating composition adapted for imparting appropriate printing, especially off-set printing, and processing characteristics to a thermoplastic resin film to be used as a synthetic paper and a coated film prepared with the composition are provided. The coating composition comprises (A) 100 parts by weight of a water-soluble polymer containing tertiary or quaternary nitrogen, (B) 5 to 75 parts by weight of a water-soluble polyaminepolyamideepichlorohydrin adduct, and (C) 5 to 100 parts by weight of a water-soluble polyimine compound.