Abstract: A particulate glucomannan gel is produced by dissolving glucomannan-rich flour in water, precipitating glucomannan from the solution with ethanol, treating the precipitated glucomannan with an alkali to transform to water-insoluble, irreversible hydrogel particles, recovering and drying the hydrogel particles, and milling dried particles to a desired particle size. The resulting gel particles are incorporated into hygienic or cosmetic preparations as a deposit-cleaning agent.

Abstract: A particulate glucomannan gel is produced by dissolving glucomannan-rich flour in water, precipitating glucomannan from the solution with ethanol, treating the precipitated glucomannan with an alkali to transform to water-insoluble, irreversible hydrogel particles, recovering and drying the hydrogel particles, and milling dried particles to a desired particle size. The resulting gel particles are incorporated into hygienic or cosmetic preparations as a deposit-cleaning agent.

Abstract: A particulate glucomannan gel is produced by swelling a glucomannan-rich flour with water in the presence of ethanol, treating the swollen particles with an alkali to form gelled particles followed by drying. The dried gel particles are incorporated into hygenic or cosmetic preparations as a deposit-cleaning agent.

Abstract: A particulate glucomannan gel is produced by swelling a glucomannan-rich flour with water in the presence of ethanol, treating the swollen particles with an alkali to form gelled particles followed by drying. The dried gel particles are incorporated into hygenic or cosmetic preparations as a deposit-cleaning agent.

Abstract: An aromatic polyamide multifilament yarn having a high bonding property to a rubber material and a high resistance to fraying of individual filaments, is produced by impregnating an aromatic polyamide multifilament yarn with a treating liquid comprising a first liquid rubber component (A) comprising at least one rubber compound provided with terminal hydroxyl or epoxy groups and having a molecular weight of 500 to 10,000, a second liquid rubber component (B) comprising at least one rubber compound provided with terminal isocyanate groups and having a molecular weight of 500 to 10,000, and an additive selected from antioxidants, antiaging agents, and epoxy compounds; heat treating the impregnated multifilament yarn at 100.degree. to 260.degree. C. for 30 to 260 seconds; twisting the heat treated multifilament yarn at a twist coefficient K satisfying the relationship (I):1.ltoreq.K.ltoreq.5 (I)wherein K is defined by the equation (II):K=(T.times.D.sup.

Abstract: A fiber-reinforced polymeric resin composite material useful for producing a shaped composite article having a high thermal stability and mechanical strength, and a low creep strain, comprises a thermoplastic polymeric resin matrix and a number of reinforcing individual fibers embedded within the polymeric resin matrix in such a manner that 10% to 70% by the number of the individual fibers are separated from each other through portions of the polymeric resin matrix and the remaining individual fibers form at least one fiber bundle.

Abstract: A modified fibrous material useful as a reinforcing material for rubber articles is produced by applying a cold plasma treatment to a fibrous material comprising at least one type of synthetic fibers selected from aromatic polyamide fibers and polyester fibers under a reduced pressure; by applying an ion-plating treatment with a polyamide vapor to the resultant cold plasma-treated fibrous material under a reduced pressure; by impregnating the resultant ion-plated fibrous material with an RFL adhesive composition comprising a resorcinol-formaldehye precondensation product and a rubber latex; and by curing the adhesive composition in the fibrous material.

Abstract: A shaped polyester composite material having an excellent bonding property to rubber, comprises a shaped substrate comprising an aromatic linear polyester matrix and 0.3 to 15%, based on the weight of the matrix, of silicon dioxide fine particles having an average size of 5 to 100 millimicrons and dispersed in at least a surface portion of the substrate, and;a surface coating layer formed on the fine particle-containing surface portion of the substrate and comprising a surface-activating material consisting of at least one member selected from silane coupling compounds and organic titanium compounds, the surface coating layer having been heat treated at a temperature of 50.degree. C. or more but at least 10.degree. C. below the melting point of the polyester matrix.

Abstract: A polyester fiber composite material useful for reinforcing rubber articles, comprises a polyester fiber substrate impregnated with an impregnating composition containing (A) a polyepoxide compound, (B) a rubber latex, (C) a resorcin-formaldehyde prepolymer and a water-soluble polyurethane compound of the formula (I): ##STR1## wherein A=a tri-hepta valent radical, X=a monovalent residue of blocking compound capable of dissociating from the compound (c) at an elevated temperature, Y=a monovalent residue of an aminosulfonic acid having 2 to 6 carbon atoms or aminocarboxylic acid having 1 to 6 carbon atoms, n=5-30, m=1-5, l=1-5 and l+m=2-6, the impregnating composition having been heat-treated on the substrate at least once at a temperature of 120.degree. C. to the melting point of the polyester fiber.

Abstract: A process for preparing a polyester fiber composite material having an excellent bonding property to rubber, a proper softness and a high resistance to fatigue, comprises the steps of first impregnating a polyester fiber material much as fabric, cord or thread, with a first treating liquid containing (A) a polyepoxide compound having two or more epoxy groups per molecule of the compound, (B) a blocked polyisocyanate compound, for example, an addition product of a polyisocyanate compound with a phenol, tertiary alcohol or aromatic secondary amine compound and (C) a rubber latex such as vinyl pyridine-styrene-butadiene terpolymer latex; first drying and heat treating the first impregnated material at a temperature of, preferably, 180.degree. C.