Abstract: A limited coalescence method of making polymer particles having an average particle size of 3 .mu.m or less comprising dispersing the polymer particles in an organic liquid diluent after they are separated from the aqueous suspension medium in which they are prepared, to thereby eliminate or substantially avoid agglomeration between the polymer particles upon drying.

Abstract: An improved photographic support, especially useful for color prints, is comprised of a paper base material having thereon a polyolefin coating containing a white pigment and an optical brightener, such as a mixture comprising inclusion compounds of certain fluorescent bis(benzoxazolyl)-stilbenes.

Abstract: A solvent mixture of 8 to 30 weight percent of n-propyl acetate 1-methoxy-2-propanol or cyclohexane, 50 to 55 weight percent of acetone and the balance methanol is employed in a coating composition for applying a polymeric antistatic layer.

Abstract: A microprecipitated dispersion comprising a methine oxonol filter dye is provided which has the formula ##STR1## wherein n is 0, 1, or 2; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different substituted or unsubstituted alkyl or aryl groups, one or more of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 contains carboxy substituent --CO.sub.2 Z, wherein Z.sup.+ is a statistical mixture of hydrogen (H.sup.+) and alkali or tetraalkylammonium cations (M.sup.+) such that Z.sup.+ =xH.sup.+ +(1-x)M.sup.+, where x is a decimal ranging from about 0.33 to about 0.95, and photographic elements containing them.

Abstract: This invention provides polymeric particles uniformly coated with colloidal cupric oxide particles by forming a suspension of polymer particles as a discontinuous phase in a continuous aqueous phase containing a colloidal cupric oxide suspension stabilizer.

Abstract: Cross-linked conductive polymer, coating compositions and light sensitive elements containing at least one antistat layer where the cross-linked polymer is a copolymer of a vinylbenzene sufonic acid and an ethylenically unsaturated monomer containing at least one primary hydroxyl group cross-linked with a methoxyalkylmelamine.

Abstract: A method of making cellulose ester photographic film base employing microwave radiation for removing the final portion of solvent present in the film.

Abstract: Photographic elements having at least one layer containing polymeric matte particles covalently bonded to gelatin and colloidal silica.

Abstract: A sheet-like article comprising a continuous oriented polymer phase having dispersed therein from about 5-50% by weight of cross-linked polymeric microparticles based on the weight of the oriented polymer, the microparticles being partially bordered by void space, the void space occupying about 2 to 60% by volume of the sheet-like article, the cross-linked polymeric microparticles having been prepared by the free radical polymerization of an ethylenically mono-unsaturated monomer and an ethylenically poly-unsaturated monomer in the presence of an effective amount of diacyl peroxide to catalyze the reaction.

Abstract: Photographic elements containing at least one layer containing polymeric particles surrounded by a layer of colloidal inorganic particles and separate particles of colloidal silica.

Abstract: The invention contemplates a light-sensitive silver halide photographic element having at least one silver halide containing emulsion layer on a film base, the film base being a coextruded laminate having a first layer and a second layer, the first layer being a polyester of an aromatic dicarboxylic acid or a dialkyl ester thereof and an alkylene glycol adjacent to the emulsion layer, the second layer being a polyester having a humidity expansion coefficient greater than 5.times.10.sup.-5 ##EQU1## (RH is relative humidity) and a Young's modulus at 50% relative humidity greater than 300 kPSI.

Abstract: A cellulose ester film which can be melt cast is manufactured by esterfying cellulose to form a cellulose acetate or cellulose acetate propionate having degrees of substitution of DSac=1.9 to 2.6, DSpr=0 to 0.9 and DS.sub.OH =0 to 0.55 and melt compounding the resulting polymer with a non-volatile phosphoric acid ester. A film is formed by melt extruding the compounded polymer onto a cooling surface to form a solid film. The film is then biaxially oriented at 130.degree. to 200.degree. C. and a stretch ratio of 1.25x to 2.5x in both directions. The resulting product is a film of excellent properties such as surface smoothness, light transmission, low haze, low color, high elastic modulus and curl relaxation after aqueous processing. The melt cast film is useful as a photographic roll film to replace solvent cast cellulose triacetate.

Abstract: A base for a photographic element is provided which comprises a support having disposed thereon a vanadium pentoxide antistatic layer and an overlying barrier layer of a heat-thickening polyacrylamide polymer having hydrophilic functionality, and a method for preparing it.

Abstract: Photographic elements having at least one light-sensitive layer and at least one layer having polymeric matte particles surrounded by a layer of colloidal organic particles.

Abstract: A microprecipitated dispersion comprising a methine oxonol filter dye is provided which has the formula ##STR1## wherein n is 0, 1, or 2; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different substituted or unsubstituted alkyl or aryl groups, one or more of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 contains carboxy substituent --CO.sub.2 Z, wherein Z.sup.+ is a statistical mixture of hydrogen (H.sup.+) and alkali or tetraalkylammonium cations (M.sup.+) such that Z.sup.+ =xH.sup.+ +(1-x)M.sup.+, where x is a decimal ranging from about 0.33 to about 0.95, and photographic elements containing them.

Abstract: A photographic element comprising a photosensitive layer, a flexible cellulose organic ester support film, and a substantially transparent magnetic recording layer having a dried thickness of less than about 1.5 micron exhibits improved magnetic and photographic performance and is particularly valuable as a color or black and white negative or reversal film.

Abstract: This invention relates to a full-color hard copy imaging system and a process, where a multiply photosensitive donor sheet, comprising clear polymeric or an opaque paper base, coated sequentially with a first layer of patches of a cyan, a magenta, and a yellow dye, that are thermally diffusible, with a second layer also coated sequentially with patches of a red light sensitive, a green light sensitive or a blue light sensitive, negative or a positive working photoresist layer, in such a manner that each of the colored dye patches are in registry with their complementary color sensitive photoresist patches, is exposed with white light sequentially, three times in registry on the three primary light sensitive patches, through a multicolor image (a positive transparency or a photographic negative), to produce crosslinks, image wise, in the exposed areas in the case of the negative resist system, or to uncrosslink the resist structure image wise in the exposed areas for a positive working resist system.

Abstract: A photographic element including a light-sensitive layer and a transparent magnetic layer wherein the magnetic particles in the transparent binder are cobalt surface treated gamma iron oxide (Fe.sub.2 O.sub.3) having a specific area of at least 30 m.sup.2 /g, the particles being coated with from about 10 to about 50% by weight of a material having a refractive index less than that of the binder, the particles having a powder coercivity greater than about 450 Oe.

Abstract: Rapidly processible and irreversibly bleachable polymeric filter dyes for photographic elements are provided wherein a benzoxazle styryl chromophore is covalently bonded to a copolymer, particularly a copolymer of methyl acrylate, methacrylic acid, and sulfoethylmethacrylate, as well as filter layers and photosensitive elements containing them.

Abstract: Disclosed is a shaped article comprising a continuous oriented polymer matrix having dispersed therein microbeads of a polymer which are at least partially boredered by void space, the microbeads being present in an amount of about 5-50% by weight based on the weight of said oriented polymer, said void space occupying about 2-60% by volume of said shaped article. Preferably, the microbeads are cross-linked to an extent they will be resilient and elastic at the orientation temperature, and are coated with a slip agent. The shaped article is preferably in the form of a sheet, fibers, or other molded article, preferably has a relatively low specific gravity and whiteness.