Abstract: Provided is a self-adhesive sheet including a 4-methyl-1-pentene-based polymer. In the self-adhesive sheet, it is preferable that at least one or more temperatures showing a local maximum value of a loss tangent (tan ?) , which is obtained by dynamic viscoelasticity measurement under conditions of a temperature rising rate of 4° C./min, a frequency of 1.59 Hz, and a strain amount of 0.1%, are present in a range of 10° C. or higher and 100° C. or lower, the local maximum value of the loss tangent is 0.5 or more and 3.5 or less, an arithmetic average roughness Ra on one surface of the self-adhesive sheet is in a range of 0.01 to 10 µm, and a ten-point average roughness Rz is in a range of 0.1 to 50 µm.

Abstract: Disclosed is a photosensitive resin composition which does not contain any halogenated compound or any antimony compound that has a high risk of putting a load on the environment, which exerts good flame retardancy after being cured, and which particularly meets the recent exacting requirements with respect to bending resistance and insulation reliability. Specifically disclosed is a photosensitive resin composition comprising: (A) a (meth)acrylate compound represented by the general formula (1); (B) a polyimide precursor; and (C) a photopolymerization initiator [in the formula, R1 represents a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a univalent organic group; n and m independently represent an integer of 1 to 5; p represents an integer of 0 to 6; q and r independently represent an integer of 0 to 4; and s represent an integer of 0 to 6, provided that the sum of p, q, r and s is 6, and the sum total of p and s may range from 3 to 6 and is preferably 6].

Abstract: The invention provides a resin composition which develops excellent flame retardance after curing in spite of its being free from halogen-containing compounds and antimony compounds, which are liable to cause environmental load, and which can give a film meeting the recent sever demands for higher flexing resistance and insulation reliability. Specifically, the invention provides a resin composition which comprises (A) a polyimide precursor and (B) an adduct of an organophosphorus compound represented by formula (1) with a compound having four or more (meth)acrylate groups. It is preferable that the resin composition further contain (C) a phosphazene compound.

Abstract: A photosensitive resin composition which is effective in avoiding troubles in the step of plating with various metals in printed wiring board production, such as under-film metal deposition and film peeling, and which forms a wiring-protecting film excellent in adhesion, flexibility, insulation reliability, and heat resistance. The photosensitive resin composition comprises (A) a carboxylated polymer, (B) a compound having at least two photopolymerizable unsaturated double bonds, (C) a photopolymerization initiator, and (D) a nitrogen compound represented by a specific feature.

Abstract: A film adhesive having an adhesive layer (C) mainly containing a thermoplastic polyimide having a glass transition temperature of not more than 100° C. and an adhesive layer (D) having a storage shear modulus of not more than 106 Pa at 50° C. Furthermore, the film adhesive further comprises a base material (A) and an adhesive layer (B). The film adhesive can exhibit excellent low-temperature adhesive property and covering capability functioning as a die bonding adhesive film which can be used in a semiconductor package. In addition, the film adhesive can exhibit excellent low-temperature adhesive property and covering capability which functions both as a die bonding adhesive film and as a dicing tape.

Abstract: A photosensitive resin composition which is effective in avoiding troubles in the step of plating with various metals in printed wiring board production, such as under-film metal deposition and film peeling, and which forms a wiring-protecting film excellent in adhesion, flexibility, insulation reliability, and heat resistance. The photosensitive resin composition comprises (A) a carboxylated polymer, (B) a compound having at least two photopolymerizable unsaturated double bonds, (C) a photopolymerization initiator, and (D) a nitrogen compound represented by a specific feature.

Abstract: Disclosed is a photosensitive resin composition which does not contain any halogenated compound or any antimony compound that has a high risk of putting a load on the environment, which exerts good flame retardancy after being cured, and which particularly meets the recent exacting requirements with respect to bending resistance and insulation reliability. Specifically disclosed is a photosensitive resin composition comprising: (A) a (meth)acrylate compound represented by the general formula (1); (B) a polyimide precursor; and (C) a photopolymerization initiator [in the formula, R1 represents a hydrogen atom or a methyl group; R2 represents a hydrogen atom or a univalent organic group; n and m independently represent an integer of 1 to 5; p represents an integer of 0 to 6; q and r independently represent an integer of 0 to 4; and s represent an integer of 0 to 6, provided that the sum of p, q, r and s is 6, and the sum total of p and s may range from 3 to 6 and is preferably 6].

Abstract: The invention provides a resin composition which develops excellent flame retardance after curing in spite of its being free from halogen-containing compounds and antimony compounds, which are liable to cause environmental load, and which can give a film meeting the recent sever demands for higher flexing resistance and insulation reliability. Specifically, the invention provides a resin composition which comprises (A) a polyimide precursor and (B) an adduct of an organophosphorus compound represented by formula (1) with a compound having four or more (meth)acrylate groups. It is preferable that the resin composition further contain (C) a phosphazene compound.

Abstract: A film adhesive having an adhesive layer (C) mainly containing a thermoplastic polyimide having a glass transition temperature of not more than 100° C. and an adhesive layer (D) having a storage shear modulus of not more than 106 Pa at 50° C. Furthermore, the film adhesive further comprises a base material (A) and an adhesive layer (B). The film adhesive can exhibit excellent low-temperature adhesive property and covering capability functioning as a die bonding adhesive film which can be used in a semiconductor package. In addition, the film adhesive can exhibit excellent low-temperature adhesive property and covering capability which functions both as a die bonding adhesive film and as a dicing tape.

Abstract: A photosensitive resin composition which contains (A) polyamic acid, (B) (meth)acrylate having at least two photopolymerizable C?C unsaturated double bonds, (C) a photopolymerization initiator and (D) a flame retardant, with the (meth)acrylate (B) having at least two photopolymerizable C?C unsaturated double bonds being contained in an amount of 10 to 700 parts by weight based on 100 parts by weight of the polyamic acid (A).

Abstract: A photosensitive resin composition which contains (A) polyamic acid, (B) (meth)acrylate having at least two photopolymerizable C═C unsaturated double bonds, (C) a photopolymerization initiator and (D) a flame retardant, with the (meth)acrylate (B) having at least two photopolymerizable C═C unsaturated double bonds being contained in an amount of 10 to 700 parts by weight based on 100 parts by weight of the polyamic acid (A).

Abstract: A resin composition for sealing liquid crystal cells comprising as principal ingredients epoxy resin containing a polysulfide modified epoxy resin, hydrazide compounds and fillers.The said epoxy resin contains a polysulfide modified epoxy resin expressed in an amount of the general formula (1) by 20 to 100% by weight in the entire epoxy resin and the average molecular weight of the entire epoxy resin is between 300 and 3000 Formula (1) is defined as follows: ##STR1## where each of R.sup.1 and R.sub.3 represents at least one organic group selected from a group consisting of bisphenol structures, aliphatic oxyether structures and aliphatic thioether structures and R.sup.2 represents a polysulfide structure expressed by --(C.sub.2 H.sub.4 OCH.sub.2 OC.sub.2 H.sub.4 S.sub.m).sub.n --, wherein m represents the number of sulfur atoms contained in a polysulfide structure, which is 1 or 2, and n represents the average number of polysulfide structures contained in the above formula, which is between 1 and 50.

Abstract: A resin composition for sealing liquid crystal cells comprising as principal ingredients epoxy resin containing a polysulfide modified epoxy resin, hydrazide compounds and fillers.The said epoxy resin contains a polysulfide modified epoxy resin expressed by the general formula (1) in an amount of 20 to 100% by weight in the entire epoxy resin and the average molecular weight of the entire epoxy resin is between 300 and 3000. Formula (1) is defined as follows: ##STR1## where each of R.sup.1 and R.sup.3 represents at least one organic group selected from a group consisting of bisphenol structures, aliphatic oxyether structures and aliphatic thioether structures and R.sup.2 represents a polysulfide structure expressed by --(C.sub.2 H.sub.4 OCH.sub.2 OC.sub.2 H.sub.4 S.sub.m).sub.n --, wherein m represents the number of sulfur atoms contained in a polysulfide structure, which is 1 or 2, and n represents the average number of polysulfide structures contained in the above formula, which is between 1 and 50.

Abstract: A method of cutting a fed sheet-material into a cut segment and a remaining portion by engaging a movable cutting edge with a fixed cutting edge is disclosed, wherein the remaining portion after being cut off is fed in a spacing with a predetermined amount of insertion between the fixed and movable cutting edges. The top of remaining portion can therefore be prevented from being curled down forward in the moving direction of the movable and fixed cutting edges. An apparatus for cutting a fed sheet-material into a cut segment and a remaining portion by engaging a movable cutting edge with a fixed cutting edge is also disclosed, wherein a plate member incorporated therein hinders the movement of the top of remaining portion after being cut off together with the movable cutting edge. Hence, the top of remaining portion can be prevented from being turned up by the movable cutting edge.

Abstract: Two bar code sensors are disposed at opposite sides of a passage of a photographic film, each bar code sensor having first and second photosensor arrays. The first and second photosensor arrays are located at the passages of the clock track and the data track, respectively, along a line perpendicular to the transportation direction of the photographic film. The DX bar code data and frame number bar code data are discriminated automatically based on the bar code data configuration read out with the bar code sensor units. The setting condition of the photographic film is detected, also based on the bar code data configuration. In case of an abnormal state of the setting conditions, an alarm display is output. The bar code data is written in a memory when the data change, or synchronously with reading the clock track of the DX bar code. The number of a frame set at the film mask is calculated by measuring the feed amount of the read-out frame number bar code.

Abstract: A method of cutting a fed sheet-material into a cut segment and a remaining portion by engaging a movable cutting edge with a fixed cutting edge is disclosed, wherein the remaining portion after being cut off is fed in a spacing with a predetermined amount of insertion between the fixed and movable cutting edges. The top of remaining portion can therefore be prevented from being curled down forward in the moving direction of the movable and fixed cutting edges. An apparatus for cutting a fed sheet-material into a cut segment and a remaining portion by engaging a movable cutting edge with a fixed cutting edge is also disclosed, wherein a plate member incorporated therein hinders the movement of the top of remaining portion after being cut off together with the movable cutting edge. Hence, the top of remaining portion can be prevented from being turned up by the movable cutting edge.

Abstract: Two bar code sensors are disposed at opposite sides of a passage of a photographic film, each bar code sensor having two photosensors disposed along a line perpendicular to the transportation direction of the photographic film. Each time a photographic film is fed by a predetermined distance, signals outputted from the two bar code sensor units are sampled and are compared with the signals obtained at the second preceding sampling timing to convert them into binary signals. Based on the data configuration of binary signals, i.e., based on the discrimination between the start code and end code, or the presence or absence of a clock track, automatic discrimination is performed between DX bar code data and frame number bar code data which then are decoded into a film type and frame number, respectively. The setting conditions of a photographic film also can be determined based on the bar code data configuration. An alarm is output if the setting conditions are not normal.

Abstract: A photographic film is printed with numerical frame numbers and corresponding coded frame number bar codes. When a sensor completely reads a frame number bar code, a transportation quantity measuring unit starts measuring the transportation of the film to obtain a distance between the center of the film mask and the read frame number bar code or the associated frame number. The number of frames between the distance is obtained through division of the obtained distance by the pitch between frame number bar codes or frame numbers. A frame number of a frame positioned at the film mask is discriminated based on the obtained number of frames and the read frame number.

Abstract: A CRT printing apparatus for making a composite image print comprising a scene or human figure and graphics and/or letters, the apparatus including at least two exposure systems having black-and-white CRTs, one for exposing a photographic paper to a video image in the form of three black-and-white CRT images sequentially displayed in brightness patterns on the CRT. In each exposure system, the photographic paper is exposed to the black-and-white image through an appropriate mono-color filter. The two exposure systems are alternately activated to expose the color photographic paper.

Abstract: A photographic printer has a printing section capable of having selectively mounted therein a plurality of printing lenses with different magnifications, to form various sizes of image frames on photographic paper. The printer also includes a processing section for developing, bleaching-fixing and rinsing the photographic paper exposed in the printing section, and a cutter unit for cutting the exposed and developed photographic paper to provide separate prints. The photographic printer has a lens mounting mechanism which enables selective mounting of the plurality of printing lenses with their optical axes perpendicular to a plane onto which images are projected by the printing lenses, and with their exposure axes inclined at different angles according to their magnifications with respect to the plane.