Abstract: Disclosed is a positive type resist composition which can form a good pattern by subjecting a resist layer to plural exposures and developments, which results in excellent adhesion between the resist layer and a substrate. The composition comprises:(a) a polymer having an acid value of 2 to 200, prepared from 20 to 94% by weight of a t-butyl ester of a .alpha.,.beta.-ethylenically unsaturated carboxylic acid, 5 to 79% by weight of a (meth)acrylate of the formula:CH.sub.2 .dbd.C(R.sub.1)--COO--(R.sub.2 --O).sub.n --R.sub.3 Iwherein R.sub.1 is hydrogen or a methyl group, R.sub.2 represents ##STR1## wherein R.sub.4 represents hydrogen or an alkyl group, R.sub.5 represents hydrogen or an alkyl group, R.sub.6 represents a branched or straight chain alkylene group, provided that a total carbon number of R.sub.4, R.sub.5 and R.sub.6 is 1 to 5, R.sub.3 is an alkyl group, an aryl group or an aralkyl group having 1 to 6 carbon atoms, and n is an integer of 1 to 10 and 1 to 75% by weight of another .alpha.,.beta.

Abstract: The present invention provides an improved process for producing a multicolor display by which a color filter having neither coloring failure nor size failure is obtained.The present invention provides a process comprising:(I) a photosensitive resin layer formed on an electric conductive layer is exposed to light through a mask having a desired pattern which is placed on the photosensitive resin layer, and developed to bare partially the surface of the electric conductive layer;(II) a colored layer is formed on the bared surface of the electric conductive layer by an electrodepositing process; and(III) the above steps (I) and (II) are repeated desired times and then the remaining photosensitive resin layer is eluted with a removing solution which preferentially or selectively dissolves the photosensitive layer, to bare the remaining surface of the electric conductive layer.

Abstract: The present invention provides a process for producing toner particles having small particle size and small particle size distribution which uniformly contain a polyolefin wax in high yield by a simple process. That is, according to the present invention, there is provided a process for producing a toner which comprises dissolving or dispersing a polymerizable composition comprising:(I) a vinyl monomer,(II) an acrylic resin-grafted polyolefin, and(III) a colorantin a dispersion solvent and then polymerizing it, wherein no resin deposition occurs when the acrylic resin-grafted polyolefin (II) is dissolved or dispersed in a mixed solution of one volume of the vinyl monomer (I) and two or more volumes of the dispersion solvent.

Abstract: The present invention provides an improved process for producing organic particles (e.g. toner particles) having uniform charge controlling coating and excellent charge controlling effect. In the process, a dispersion comprising the organic particles (A), a specific compound (B) forming insoluble substances upon reacting with an insolubilizer (D) and a dispersing medium is prepared and then reacted with the insolubilizer (D).

Abstract: An aqueous coating composition comprising (A) 100 parts by weight of an acrylic resin powder having an acid value of 15 to 200, (B) 25 to 900 parts by weight of an acrylic graft polymer having an acid value of 20 to 100, which is composed of a polymer portion (1) having an acid value of not more than 15 and an acrylic polymer portion (2) having an acid value of 40 to 200, and (C) 3 to 900 parts by weight of a curing agent for curing the component (A) and/or (B).