Abstract: A conveyance device that conveys paper through a conveyance path along a surface thereof includes: a conveyance guide that has a guide surface to be a wall surface on one side of the conveyance path, an opening being formed in the guide surface; a paper detection unit at least including a detection member, which is arranged in a space that communicates with the conveyance path through the opening, and configured to detect, with the detection member, a leading end of the paper that reaches the opening; and a movable body that brings the detection member into a retracted state, in which a main part thereof is covered from the space, after the leading end of the paper is detected.

Abstract: A conveyance device that conveys paper through a conveyance path along a surface thereof includes: a conveyance guide that has a guide surface to be a wall surface on one side of the conveyance path, an opening being formed in the guide surface; a paper detection unit at least including a detection member, which is arranged in a space that communicates with the conveyance path through the opening, and configured to detect, with the detection member, a leading end of the paper that reaches the opening; and a movable body that brings the detection member into a retracted state, in which a main part thereof is covered from the space, after the leading end of the paper is detected.

Abstract: The rear end face of the first upright portion of a trailing edge regulating member is brought into contact with the inner face of a notched sidewall provided in a rear sidewall, and the second upright portion is located above the notched sidewall.

Abstract: The rear end face of the first upright portion of a trailing edge regulating member is brought into contact with the inner face of a notched sidewall provided in a rear sidewall, and the second upright portion is located above the notched sidewall.

Abstract: A resin composition for stencil ink comprising: (I) a non-aqueous dispersion comprising; (a) a resin for dispersing; (b) a particulate resin comprising a film-forming linear acrylic resin, and (c) at least one solvent that can dissolve the resin (a) therein but cannot dissolve the particulate resin (b) therein, the solvent being selected from the group consisting of paraffinic hydrocarbon solvents, isoparaffinic hydrocarbon solvents and naphthenic hydrocarbon solvents; (II) a colorant; and (III) an emulsifying agent. Also disclosed is a water-in-oil stencil ink comprising the resin composition and water.

Abstract: Finely dispersed polyurethane polyurea crosslinked particles having an average particle diameter of not greater than 1 .mu.m and essentially comprising (A) an ion-forming polyol, (B) a polyisocyanate, and (C) a polyamine; and a process for producing the same are disclosed. The present invention provides finely dispersed polyurethane polyurea crosslinked particles and a process for producing the same; the dispersed particles being firmly crosslinked and having an average particle diameter of not greater than 1 .mu.m, and the particle dispersion having high preservation stability, preventing the core substance, if encapsulated therein, from undergoing denaturation, and exhibiting per se film-forming properties to provide a film excellent in water resistance, solvent resistance and chemical resistance.

Abstract: The present invention provides polymer fine particles for a jet ink, each polymer fine particle containing a colorant, wherein the polymer fine particles have an average particle diameter in the range of 5 to 700 nm, a maximum particle diameter of at most 1000 nm, and a particle size distribution, at m value of shape parameter according to the Weibull distribution, of at least 1.3, and wherein the polymer fine particles are able to form a coating film at room temperature.

Abstract: A finely particulate polymer for use in a stencil ink is disclosed which is uniformly dispersible into a binder polymer having a solubility parameter of 11.0 or lower and has an average particle diameter of from 0.1 to 10 .mu.m and a maximum particle diameter of 50 .mu.m or smaller. The finely particulate polymer is highly advantageous in that stencil inks having an appropriate viscosity can be easily obtained with the particulate polymer using the same formulation even when the inks contain different colorants, and that with the particulate polymer, a colorant which has been unusable due to its adverse influence on the storage stability of stencil inks can be used to produce a stencil ink having excellent storage stability by encapsulating the colorant in the individual polymer particles.

Abstract: A crosslinked polyurethane polyurea spherically particulate polymer having an average particle diameter of 0.1 to 500 .mu.m, wherein the polymer molecule contains an isocyanurate ring in an amount of 10 to 30% by weight is disclosed. A process for producing the crosslinked polyurethane polyurea spherically particulate polymer is also disclosed.

Abstract: Disclosed is a construction material containing bitumen comprising (A) a polyol component, the polyol component consisting essentially of (a-1) a hydroxy-polyoxyalkylene ether of bisphenol A and/or bisphenol F, and (a-2) an aliphatic polyol, (B) a polyisocyanate component, (C) a bitumen, and/or (D) an aggregate. The construction material has improved water-proof and mechanical properties.

Abstract: A working material for construction or repair comprising (A) a mixture of 0.5 to 30% by weight of (a-1) a hydroxide of a divalent or higher basic metal, 10 to 99% by weight of (a-2) an aggregate and 0.5 to 70% of (a-3) a bituminous substance, the total amount of these materials (a-1), (a-2) and (a-3) being 100% by weight, and covering the mixture (A), (C) oxidized rosin or a mixture of (C) oxidized rosin with (D) a compound containing more than one carboxy group per molecule on an average and/or (B) a liquid hydrocarbon or a vegetable oil.