-
公开(公告)号：JPH08324149A
公开(公告)日：1996-12-10
申请号：JP15681195
申请日：1995-05-30
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , KAWAZU YUKIO , YAMAUCHI HIDEYUKI
Abstract: PURPOSE: To obtain a thermal stencil printing base sheet having excellent sensitivity and plate wear resistance by sticking a film formed of specific polymer to nonwoven fabric without intermediary of a bonding agent and specifying the mean fiber size of the fiber for forming the nonwoven fabric. CONSTITUTION: The thermal stencil printing base sheet is perforated to be engraved by flashing light emitting, pulse-like emitting of a laser beam or bringing a thermal head into contact, and formed by sticking the film formed of polymer of ethylene-2, 6-naphthalate of main repetition unit to nonwoven fabric without intermediary of a bonding agent. The mean fiber size of the fiber forming the nonwoven fabric is set to a range of 1 to 15μm. The tensile elastic modulus of the base sheet in its lengthwise direction is preferably 0.20kg/cm or more.
-
公开(公告)号：JPH0867081A
公开(公告)日：1996-03-12
申请号：JP20516794
申请日：1994-08-30
Applicant: TORAY INDUSTRIES
Inventor： KAWAZU YUKIO , KIDA KENJI , YAMAUCHI HIDEYUKI
Abstract: PURPOSE: To obtain a thermosensitive stencil printing sheet with high perforation sensitivity and outstanding image sharpness. CONSTITUTION: A thermosensitive stencil printing sheet has thermoplastic resin film laminated on one surface of a porous support. The maximum surface roughness(Rt) of the thermoplastic resin film in a laminated state is less than 10μm and the smoothness measured by Open-type smoothness tester is, at least.
-
公开(公告)号：JPH07209806A
公开(公告)日：1995-08-11
申请号：JP530094
申请日：1994-01-21
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , IMAI SHIRO , TSUNASHIMA KENJI
Abstract: PURPOSE:To obtain a photographic film excellent in heat resistance and dimensional stability having little foreign matter by specifying the amt. of metal antimony single element. CONSTITUTION:This film consists of a polyester having an ethylene-2,6- naphthalate unit by at least >=80mol% of the repeating structural units and contains 0.01 to 10ppm metal antimony single material to the weight of the polyester. This polyester is substantially composed of ethylene-2,6-naphthalate, and at least >=80% of the repeating structural units is ethylene-2,6-naphthalate, preferably >=90mol%, and more preferably >=95mol%. When the amt. of ethylene-2,6-naphthalate unit is
-
公开(公告)号：JPH06286067A
公开(公告)日：1994-10-11
申请号：JP7377993
申请日：1993-03-31
Applicant: TORAY INDUSTRIES
Inventor： MIYAJI SHINICHIRO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To balance various characteristics such as heat resistance, thermal dimensional stability, mechanical characteristics, etc., in high dimensions and to improve through-hole, thermal fusion-bonding processability by resin- impregnated fiber sheet having specific values of resin impregnating degree of resin composition, relative crystallization index, size of microcrystal, and a ratio of residual crystallization energy to crystallization energy. CONSTITUTION:A resin-impregnated fiber sheet is obtained by impregnating a resin sheet with resin composition containing poly-p-phenylene sulfide as a main ingredient in which resin impregnation degree of the composition is 80% or more, relative crystallization index is 2.5-13.0, a size of a microcrystal is 50-100 Angstrom and residual crystallization energy DELTAHt is 20-80% of crystallization energy DELTAHq of the composition. Of fiber sheets, a glass fiber sheet is preferable in view of electric insulation, thermal dimensional stability, and particularly cloth of glass fiber is preferable in view of points of heat resistance, dimensional stability and processability. Of which, a range of 0.7-1.4 of average density of warps to wefts of the cloth is preferable in view of thermal dimensional stability.
-
公开(公告)号：JPH0645764A
公开(公告)日：1994-02-18
申请号：JP19537092
申请日：1992-07-22
Applicant: TORAY INDUSTRIES
Inventor： MIYAJI SHINICHIRO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To obtain a printed wiring board mounted with electronic parts high in mounting density by a method wherein semiconductor chips are built in holes provided inside the board. CONSTITUTION:A printed wiring board is composed of two outer boards 2 and an inner board 1 sandwiched in between the two outer boards 2 and equipped with circuit wiring layers 3 each provided onto the surface of the wiring board and between the boards. A hole 7 is provided to the inner board 1 at a prescribed position, and a pad and a wiring used for mounting an IC chip 6 are formed on the circuit wiring layer 3 exposed at the hole 7. The IC chip 6 is mounted on the circuit wiring layer 3 through the intermediary of bumps 5. Electronic parts 4 are formed on the surfaces of the printed wiring board at prescribed positions. As mentioned above, an IC is mounted inside the hole 7 provided to the inner board 1, so that elements mounted on a printed wiring board can be enhanced in number per unit area.
-
Patent Agency Ranking
公开(公告)号：JPH05125186A
公开(公告)日：1993-05-21
申请号：JP29316691
申请日：1991-11-08
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , UEDA TOMOAKI
IPC: C08G75/02 , C08G75/0295 , C08G75/06
Abstract: PURPOSE:To produce a polyphenylene sulfide containing a small amount of low-molecular weight substances to cause cap stain, little in cap stain and excellent-in-film-forming properties in extrusion. CONSTITUTION:A polyphenylene sulfide having =200 deg.C to
-
公开(公告)号：JPH05111958A
公开(公告)日：1993-05-07
申请号：JP27790291
申请日：1991-10-24
Applicant: TORAY INDUSTRIES
Inventor： NOGUCHI YUKIO , KIDA KENJI , UEDA TOMOAKI
Abstract: PURPOSE:To equalize the height of surface projections and improve sliding properties and dielectric strength by laminating a resin mainly comprising two kinds of poly-p-phenylene sulfide having different characteristic values and forming a biaxially oriented laminated film. CONSTITUTION:Poly-p-phenylene sulfide(PPS) resin powder having the characteristic value of melting viscosity of 1000-50000 poise at 300 deg.C at a shear rate of 200sec is melt-extruded, thus preparing a pellet A. On the other hand, PPS resin povyder having melting viscosity of half or one twentyth of the melting viscosity of the pellet A and a temperature-drop crystallization temperature of 150-250 deg.C is melt-extruded, thus preparing a pellet B. The pellets A, B are laminated under a molten state in a flow path between an extruder and a mouthpiece, thus preparing a PPS laminated film. The PPS laminated film is biaxially oriented by magnification, where the pellet A is orientated sufficiently, simultaneously or successively in length and breadth at a fixed temperature, and thermally treated in constant length at a fixed temperature for a specified time, thus acquiring a biaxially oriented PPS laminated film.
-
公开(公告)号：JPH04319436A
公开(公告)日：1992-11-10
申请号：JP8687591
申请日：1991-04-18
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , MIYAJI SHINICHIRO , DEGUCHI YUKICHI
IPC: B29C47/06 , B29C55/12 , B29K81/00 , B29L9/00 , B32B7/02 , B32B7/10 , B32B27/00 , B32B27/08 , B32B27/28
Abstract: PURPOSE:To impart heat sealing properties to a biaxially oriented poly-p- phenylene sulfide film and improve its tearing strength while keeping its mechanical characteristics and heat resistance. CONSTITUTION:A laminated polyphenylene sulfide film wherein a surface layer consisting of a polyphenylene sulfide film of specifically copolymerized elements is laminated on at least one side of a center layer consisting of biaxially oriented poly-p-phenylene sulfide.
-
公开(公告)号：JPH04224941A
公开(公告)日：1992-08-14
申请号：JP41500490
申请日：1990-12-27
Applicant: TORAY INDUSTRIES
Inventor： MIYAJI SHINICHIRO , KIDA KENJI , DEGUCHI YUKICHI
Abstract: PURPOSE:To provide a heat-resistant base material having well-balanced properties such as heat resistance, size stability against heat and humidity, flame retardation and stability against high frequency, and besides, self-fusion which allows thermal fusion even at comparatively low temperature, and especially best suited for use on a circuit board. CONSTITUTION:A laminated product consists of a non-stretched sheet (B-layer) containing poly-p-phenylenesulfide as a main component without using an adhesive as an intermediately, fixed to at least, one surface of a fibrous sheet (A layer). In addition, the laminated product has the residual crystallization energy DELTAHt of the B layer which is equipment to 20% or higher of the crystallization energy DELTA Hq of resin constituting the B layer. A circuit board has an electric circuit provided at least, on one surface of the laminated product.
-
公开(公告)号：JPH04146935A
公开(公告)日：1992-05-20
申请号：JP27154990
申请日：1990-10-08
Applicant: TORAY INDUSTRIES
Inventor： KIDA KENJI , NOGUCHI YUKIO , DEGUCHI YUKICHI
Abstract: PURPOSE:To obtain the title film improved in impact resistance and tear resistance without detriment to its heat resistance, electrical properties and chemical resistance by mixing a polyphenylene sulfide with a polyetherimide in a specified ratio. CONSTITUTION:An alkali sulfide is polymerized with a p-dihalobenzene at high temperature under high pressure in a polar solvent to obtain a polyphenylene sulfide (A). 100 pts.wt. component A is melt-kneaded with 0.5-30 pts.wt., desirably 0.5-20 pts.wt. polyetherimide (B) and molded into a film, which is biaxially oriented at 85-105 deg.C at a draw ratio of 2.5-4.5 in each of the machine and transverse directions. The resulting film is heat-treated for 1-300sec at 200 deg.C to the melting point of the film under constant-length conditions and optionally relaxed within a range of 0-15% in each of the machine and transverse directions.
-
-
-
-
-
-
-
-
-
Search Results
184
records
(took 0.027 seconds)
