Abstract: Composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle size of from 0.1 to 0.005 ?m, a high molecular dispersant having adsorptive property to the nanoparticulate pigment, and a (meth)acrylic resin. The nanoparticulate pigment is enclosed in a dispersed state in the high molecular dispersant and (meth)acrylic resin. The content of the nanoparticulate pigment ranges from 5 to 70 wt % based on the composite spherical polymer particles. The composite spherical polymer particles have an average particle size of from 1 to 20 ?m. A production process of the composite spherical polymer particles and cosmetics containing the composite spherical polymer particles are also disclosed.

Abstract: Composite spherical polymer particles contain a nanoparticulate pigment having an average primary particle size of from 0.1 to 0.005 ?m, a high molecular dispersant having adsorptive property to the nanoparticulate pigment, and a (meth)acrylic resin. The nanoparticulate pigment is enclosed in a dispersed state in the high molecular dispersant and (meth)acrylic resin. The content of the nanoparticulate pigment ranges from 5 to 70 wt % based on the composite spherical polymer particles. The composite spherical polymer particles have an average particle size of from 1 to 20 ?m. A production process of the composite spherical polymer particles and cosmetics containing the composite spherical polymer particles are also disclosed.

Abstract: A production method of an optical film is provided including: a process of preparing a solution comprising polyvinyl alcohol or modified polyvinyl alcohol; a process of casting the solution by using a tapering die so as to prepare a film differing in thickness between the right side and the left side; and a process of stretching the film at a speed differing between the right side and the left side at an angle of 10 to 80 degrees with the machine direction.

Abstract: The present invention relates to a cellulose acylate film having a high modulus of elasticity and a high surface hardness. The cellulose acylate film of the present invention is characterized by containing 1 vol % to 99 vol % of a metal oxide having an average particle size of 1 nm to 400 nm. The metal oxide used here is preferably a metal oxide having a Mohs hardness of at least 7, and specific examples thereof include aluminum oxide and silicon dioxide. This metal oxide may be subjected to a surface treatment. Furthermore, a functional thin film such as a hardcoat layer may be formed on the cellulose acylate film containing the metal oxide.

Abstract: An optical film formed by a method comprising stretching a film comprising a polyvinyl alcohol or a modified polyvinyl alcohol at an oblique angle ranging from 10 to 80 degrees to the machine direction of the film.

Abstract: The present invention relates to a cellulose acylate film having a high modulus of elasticity and a high surface hardness. The cellulose acylate film of the present invention is characterized by containing 1 vol % to 99 vol % of a metal oxide having an average particle size of 1 nm to 400 nm. The metal oxide used here is preferably a metal oxide having a Mohs hardness of at least 7, and specific examples thereof include aluminum oxide and silicon dioxide. This metal oxide may be subjected to a surface treatment. Furthermore, a functional thin film such as a hardcoat layer may be formed on the cellulose acylate film containing the metal oxide.

Abstract: A long sheet polarizer which has a transmission axis neither parallel nor perpendicular to the longitudinal direction and thereby can increase a yield rate in stamping and simplify the stamping process; a method of producing a long sheet polarizer comprising a step of coating a long transparent substrate with a polymer layer, a step of subjecting the polymer layer to a rubbing treatment, and a step of adsorbing iodine or a dichroic dye to the rubbed polymer layer to bring about a state of orientation; a sheet polarizer comprising two transparent substrates and a polarization layer sandwiched between them, wherein the polarization layer comprises a polyvinyl alcohol film stretched at an oblique angle ranging from 10 to 80 degrees and a polarizing element adsorbed to the film in an oriented state; and a sheet polarizer provided with at least one transparent substrate satisfying the following relations at any of wavelengths ranging from 380 nm to 780 nm:

Abstract: The present invention relates to a microporous membrane and a process for producing thereof, especially a microporous membrane which can be used for microfiltration, has excellent resistance to chemicals, and a process for producing thereof.The present invention provides a microporous membrane having excellent resistance to chemicals, and a microporous membrane which facilitates waste disposal, and a process for producing thereof.The microporous membrane has a bubble point value measured by the use of ethanol (by the test method of JIS K3832) falling in the range of from 10 kPa to 1000 kPa and comprises a polymer prepared by ring opening polymerization of a compound represented by chemical formula (I) or a polymer which is a ring opening polymer or ring opening copolymer represented by chemical formula (II). An example of the ring opening ring polymer or ring opening copolymer is a norbornene resin.

Abstract: A silver halide light-sensitive material is described, including an embodiment containing a polyester film support having thereon at least one light-sensitive layer, wherein the polyester film support satisfies the following relationships:Tg.ltoreq.32.1A.sup.2 +55X.gtoreq.-0.74Tg+71.7wherein Tg is a glass transition temperature (.degree.C.); A is an equivalent water content (%) after moisture conditioning at 25.degree. C. and 50% RH for 10 days; and X is a degree of crystallinity.

Abstract: A method for producing colored and exactly spherical fine-grains of polymer by carrying out the suspension and polymerization of ethylenic unsaturated monomers containing a pigment in water under the presence of a suspension stabilizer, wherein an inorganic pigment treated with silane-coupling agent is used as said pigment. According to the present invention, the pigments are homogeneously dispersed in said exactly spherical fine-grains of polymer and a loss of color is prevented.

Abstract: A photographic material comprising a silver halide photographic material which has a magnetic recording layer having a coercive force of at least 400 Oe and a patrone for silver halide photographic material wherein a leading end of a silver halide photographic material wound around a spool is delivered from a film leading-out port of a main body of the patrone to the outside by rotating said spool in the direction of film delivery, said spool being rotatably provided in the main body of the patrone.

Abstract: A cellulose ester film contains a phosphoric ester as a plasticizer. The film further contains an aromatic carboxylic ester represented by the formula [I]. ##STR1## in which n is 3, 4, 5 or 6; R is an alkyl group or an alkenyl group, each of which may have one or more substituent groups; the benzene ring may have one or more substituent groups other than the groups represented by --COOR; and the groups represented by --COOR may be different from each other. A process for preparation of the film is also disclosed.

Abstract: A method for producing a matt paint which comprises the steps of choosing a particle size of 1 to 100 .mu.m from exactly spherical acrylic particles colored by pigment, and blending them into a paint vehicle. According to the present invention, a colored film of the matt paint can be formed, and the surface of the film shows a soft feel without stickiness.

Abstract: A peel-apart type diffusion transfer unit comprising at least an image receiving layer and a peeling layer on a support wherein the peeling layer essentially consists of (A) a layer containing a copolymer which contains repeating units (monomer units) derived from an ethylenic unsaturated carboxylic acid or a salt thereof, and (B) a layer which contains a cellulose ester.

Abstract: A diffusion transfer photographic film unit comprising a support having thereon outwardly from said support (a) a dye image receiving layer; (b) a first peeling layer containing a copolymer of at least (i) an ethylenically unsaturated monomer containing at least one hydrocarbon group containing from 7 to 18 carbon atoms, and (ii) an ethylenically unsaturated monomer, the homopolymer of which is soluble in water or an aqueous alkaline solution; (c) a second peeling layer containing a cellulose ester; and (d) a light-sensitive silver halide emulsion layer containing a light-sensitive silver halide and a dye image forming substance. The diffusion transfer photograph produced using the unit of the invention has stable peeling properties, is not sticky, and is excellent in scratch resistance.

Abstract: A polyester film containing 20% or less by weight of a mixture comprising a white pigment and a pearlescent pigment is disclosed. The polyester film has a pearly luster and a high degree of whiteness.

Abstract: A fine porous membrane having a pore size distribution in the thickness direction and having a layer having a minimum pore size in the interior thereof, wherein the ratio of maximum pore size to the average pore size, each as determined according to ASTM-316-80, is not more than 1.8. The fine porous membrane is produced by a process comprising casting a film-forming solution, comprising a polymer in a solvent having incorporated therein a swelling agent and a non-solvent, on a casting carrier while being in a solution state, directing air having a temperature of from 15.degree. to 60.degree. C. and a relative humidity of from 10 to 80% onto the surface of the cast film at a velocity of from 0.

Abstract: An element for electrophoresis suitably employable for analysis of biopolymers such as proteins, as well as for determination of base sequence of DNA, RNA, their fragments, and their derivatives, which comprises a plastic material support, an adhesive layer containing an inorganic oxide and a binder, a medium layer for electrophoresis comprising an aqueous polyacrylamide gel formed by crosslinking polymerization of an acrylamide compound and a crosslinking agent in the presence of water, and a plastic material covering film. The electrophoresis medium layer may contain a water-soluble polymer and agarose. The medium layer may contain a modifier such as an anionic surfactant, formamide or urea.

Abstract: A retouchable mat film comprising a hydrophobic support which has formed thereon a mat layer containing silicon dioxide as a matting agent is disclosed. The mat layer further includes a mixture of poly(methyl methacrylate) or a copolymer containing at least 80 wt % of methyl methacrylate and a hydrophilic polymer as a binder. This mat film withstands several retouching operations in ink.

Abstract: A retouchable mat film comprising a hydrophobic support which has formed thereon a mat layer containing silicon dioxide as a matting agent is disclosed. The mat layer further includes a mixture of poly(methyl methacrylate) or a copolymer containing at least 80 wt % of methyl methacrylate and a hydrophilic polymer as a binder. This mat film withstands several retouching operations in ink.