Abstract: A polyester resin for a toner whereina ratio of insoluble material in THF is comprised at 5 weight % or less,a ratio of soluble polymer having a molecular weight of 1.times.10.sup.6 or greater in THF is comprised at a range of 1 weight % to 10 weight %,a soluble polymer having a molecular weight greater than 1.times.10.sup.5 in THF is comprised in a range of 10 weight % to 20 weight %, and the following relationship is satisfied W1>W2wherein a ratio of a soluble polymer having a molecular weight less than 1.times.10.sup.4 in THF is shown by W1, a ratio of a soluble polymer having a molecular weight greater than 1.times.10.sup.4 and less than 1.times.10.sup.5 in THF is shown by W2.

Abstract: A polyester resin for a toner, wherein a maximum molecular weight is in a range of 1.times.10.sup.3 to 8.times.10.sup.3, Mw/Mn is in a range of 20 to 200, a proportion of component having a molecular weight of 1.times.10.sup.5 or less is comprised at a range of 80 weight % or greater, and at least one component selected from the group consisting of polycarboxylic acid having more than 3 carboxyl groups and polyalcohol having more than 3 hydroxyl groups.

Abstract: An electrophotographic toner containing a binder resin containing an ester which has 2-4 ester bonds and is obtained from a long-chain, linear saturated alcohol as an alcohol component or a long-chain linear saturated fatty acid as an acid component, can be fixed at a low fixing temperature, is free of any practical problem concerning offset-free properties, and has excellent fixing strength to a receptor paper sheet and excellent image characteristics.

Abstract: In a stencil printer having a printing drum 10 which has a circumferential wall portion for mounting a stencil sheet made of a flexible sheet member 20 and including a perforated portion 20c, an inking roller 12 provided inside of the printing drum for supplying ink to the printing drum from its inside, and a back press roller 14 for supporting a print sheet against the printing drum by holding a leading end of the print sheet by clamps 25, a strip of elastic sheet 52 is provided to prevent ink leakage from the perforated portion 20c of the printing drum due to insufficient support of the print sheet by the back press roller at the portion of the clamps 25.

Abstract: A toner for electrophotography is disclosed which includes at least a polyester resin and a colorant, the polyester resin including at least a saturated polyester resin having a melting initiation temperature of from 50.degree. C. to less than 100.degree. C., and a crosslinked polyester obtained by crosslinking an unsaturated polyester resin. The toner is highly safe and tenaciously fixable to receiving paper at low temperatures and causes no offset problem in practical use.

Abstract: A toner for electrophotography and a process for producing the same are disclosed. The toner is formed from particles which are formulated from at least a cured composition which contains at least a binder resin having an unsaturated double bond, and can also contain a reactive monomer, a radical-polymerization catalyst, and a catalyst. The resulting particles each have a crosslinking density that gradationally increases from the center towards the surface of the particle. The toner of the present invention is fixable at low temperatures, has no problems associated with storage stability in practical use, and can be firmly fixed to receiving paper.

Abstract: A sheet receiving and stacking apparatus includes a base table with a stacking section for stacking a rectangular sheet, and a guide device for receiving the rectangular sheet and guiding the rectangular sheet to the stacking section of the base table. The guide device has a plurality of guide sections rotating in contact with the rectangular sheet above said stacking section.

Abstract: In order to ensure that the leading end of a print sheet mounted to the back press means by a clamp member is engaged by a claw member for removing the print sheet from the back press means when the leading end has been released from the clamping by the clamp member, there is provided a means for lifting up the leading end of the print sheet above a supporting surface therefor of the back press means after the release of the leading end from the clamp member.

Abstract: There is disclosed a semiconductor wafer-securing adhesive tape having a radiation-curable adhesive layer on one surface of a support film, wherein the support film is composed of a laminated film that comprises, as a center layer, a film comprising a styrene/ethylene/butene/styrene block copolymer, a ethylene/acrylic acid-type copolymer, and a polyamide/polyether copolymer in a specific ratio, and has a layer for adhesive coating laid, directly or through a bonding layer, on one surface of the center layer on the side where said radiation-curable adhesive layer is provided, and has a transfer-preventing layer laid, directly or through a bonding layer, on the other surface of the center layer. There is also disclosed a semiconductor wafer-securing adhesive tape wherein the center layer of said semiconductor wafer-securing adhesive tape has a film comprising said SEBS block copolymer or SEPS block copolymer, an amorphous poly .alpha.-olefin, and a polyamide/polyether copolymer, in a specific ratio.

Abstract: A sheet receiving and stacking apparatus is formed of a base table with a stacking section for stacking a rectangular sheet, and a guide device for receiving the rectangular sheet and for guiding the rectangular sheet to the stacking section of the base table. The guide device has a rotatable curved guide surface, and guides the rectangular sheet to the stacking section while being rotated with the side edges of the rectangular sheet when the guide surface has received the side edges of the rectangular sheet which is floating downwardly.

Abstract: A sheet receiving and stacking apparatus is formed of a base table with a stacking section for stacking a rectangular sheet, and guide members for receiving the rectangular sheet and for guiding the rectangular sheet to the stacking section of the base table. The guide members have at least one movable member which protrudes out on the stacking section side of the base table. The movable member receives the side edge of the rectangular sheet floating downwardly, retreats to the outside of the stacking section with the weight of the rectangular sheet, and is movable to protrude again towards the stacking section side when freed from the weight of the rectangular sheet.

Abstract: In a rotary stencil printer in which a back press roller 12 is provided with a transverse groove 26 for receiving a transverse bar 16 of a printing drum 10 and a printing sheet applied with a printing at a nipping region 32 between the printing drum and the back press roller is transferred for a while as attached onto the cylindrical outer circumferential surface of the back press roller by a pinch roller or rollers 40 provided at an outlet side of the nipping region so as to press at a side edge portion or portions of the printing sheet against the outer circumferential surface of the back press roller, the position control of the pinch roller or rollers to conform to the sheet width is carried out in a condition that the pinch roller or rollers are aligned with the transverse groove of the back press roller.

Abstract: A toner for electrophotography, which is obtained by attaching fine particles, each of which is formed by coating a core particles, e.g., metal oxide powders, ceramics, inorganic particles or resin particles, with a long-chain fatty acid metal salt to a surface of each of toner particles. The present toner gives an excellent image without causing any phenomenon of white spot within character, and the image formed is free from any fog and black speckle in an image background portion.

Abstract: A compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each a lower alkyl group or they may together represent a lower alkylene group so as to form a nitrogen-containing cyclic group with the nitrogen atom to which they attach, R.sub.3 is a cycloalkyl(lower)alkyl group, an oxacycloalkyl(lower)alkyl group or a dioxacycloalkyl(lower)alkyl group and n is an integer of 0 to 2, which is useful as a herbicide.

Abstract: A compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each a lower alkyl group or they may together represent a lower alkylene group so as to form a nitrogen-containing cyclic group with the nitrogen atom to which they attach, R.sub.3 is a cycloalkyl(lower)alkyl group, an oxacycloalkyl(lower)alkyl group or a dioxacycloalkyl(lower)alkyl group and n is an integer of 0 to 2, which is useful as a herbicide.

Abstract: Benzylsulfinyl pyridine-N-oxides represented by the formula: ##STR1## wherein X is a chlorine atom or a bromine atom; and Y and Z, which may be the same or different, are each a chlorine atom or a fluorine atom, is disclosed. A process for producing the same, and a herbicide containing the same as an active ingredient are also disclosed.

Abstract: An apparatus for continuously measuring the flow rate of a fine material flowing through a transport pipe, which comprises: an integrator for integrating calculated values of the flow rate of a fine material flowing through a transport pipe, obtained by a flow rate calculating means; a correction controller, said correction controller being adapted to calculate the total weight of the fine material fed during a prescribed period of time while the fine material in a hopper is only decreasing in amount from said hopper into said transport pipe, on the basis of a measured value of the weight of the fine material in said hopper, and to actuate said integrator during said prescribed period of time; a divider for calculating the correction coefficient "k", i.e.

Abstract: An antenna adapter for television which comprises an input connecting element to be inserted into a plug socket for domestic use, which element is connected to one end of a feeder intermediately with a fuse connected in series, the other end thereof being formed so as to be connectable to the input terminal of the antenna, and a circuit-changing switch or a variable resistance in the midpoint of the feeder for appropriately changing the impedance of the feeder.