Abstract: A rubber composition superior in dispersion and abrasion resistance, containing precipitated silica having an aluminum content of 0.01 to 0.24 wt %.

Abstract: A process for high speed melt extrusion onto wire conductors of fluoropolymer pigmented with oxide-coated titanium dioxide.

Abstract: A mixture comprises an amino resin and a polymer which consists to the extent of at least 80% by weight of C2- to C3 alkylene oxide groups.

Abstract: A graphitic material having an accessible surface of at least 50 m2 per gram, wherein 0.1-40% by weight, based on the weight of the material, of at least one alkali metal is taken up between the graphite layers.

Abstract: A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and thereby removes the extractables from the device, treating the solvent to remove extractables from the solvent, thereby purifying the solvent, and using the purified solvent to remove additional extractables from polymeric devices.

Abstract: The invention relates to maleic anhydride copolymers containing amine oxide groups and to their use as dispersants for pigments and fillers.

Abstract: Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl group-containing resin A1 and a hydroxyl group-containing resin A2, a curing agent C which becomes active only at an elevated temperature of at least 80° C., with the proviso that at least 20% of the mass of the curing agent C is insoluble in water, and a low molar mass polyester B having a hydroxyl number of from 100 to 450 mg/g and a Staudinger Index of from 2.5 to 6 cm3/g, obtainable by condensing aliphatic polyols B1 and aliphatic, cycloaliphatic or aromatic polycarboxylic acids B2, the average functionality (number of the hydroxyl groups and/or acid groups per molecule) of component B1 being greater by at least 0.2 than that of component B2.

Abstract: The present invention relates to a method for recycling an alignment layer material. The recycled alignment layer material shows the same characteristics as an original alignment layer material. The waste solution of the alignment layer material produced during the liquid crystal display manufacturing processes is recycled by solidifying polyamic acids and soluble polyimides by putting a waste solution of the alignment layer material into an organic solution or ultra purified water in which the alignment layer material constituents of polyamic acids and soluble polyimides are insoluble, separating polyamic acids and soluble polyimides from the organic solvent or ultra purified water, and dissolving the separated solid polyamic acids and soluble polyimides into a solvent. Recycling the alignment layer material in this method can significantly reduce the manufacturing costs.

Abstract: Polymer compositions and articles incorporating them are provided that possess antimicrobial activity, preferably in both the light and the dark. Such compositions include one or more polymers and one or more photosensitizers.

Abstract: This invention relates to an economical and efficient process for purifying a reaction mixture obtained in a two-phase interfacial reaction for the preparation of polycarbonate. More particularly, the method of the invention provides for separating the reaction mixture into an organic phase, which includes the desired polycarbonate and undesirable impurities, and an aqueous phase. The organic phase is further purified by using a plate decanter in combination with coalescence and centrifugation.

Abstract: A non-toxic, edible, enteric film coating, dry powder composition for use in making an aqueous enteric suspension which may be used in coating pharmaceutical tablets comprises a) an acrylic resin, said resin comprising i) from 20 to 85 percent by weight of at least one alkyl acrylate or alkyl methacrylate moiety, ii) from 80 to 15 percent by weight of at least one vinyl or vinylidene moiety having a carboxylic acid group capable of salt formation, and iii) from 0 to 30 percent by weight of at least one other vinyl or vinylidene moiety copolymerizable with i) and ii), b) an alkalizing agent capable of reacting with the acrylic resin such that, after reaction, 0.1 to 10 mole percent of the acidic groups in 1a-ii) are present in the salt form, and c) a detackifier.

Abstract: A polymerizable dental composition, comprising a polymerizable resin composition; and a filler composition comprising a bound, nanostructured colloidal silica

Abstract: The present invention relates to formulations which essentially comprise a film-former or a casting resin and pearl lustre pigments which are coated with a silane of the formula I SiR1R2R3R4  I.

Abstract: A composition and method of making an improved sealant is disclosed. The sealant is made from a base polymer material that includes one or more substantially linear vinyl, acrylate, or methacrylate monomers, a hydrolyzable silane that includes one or more substantially linear vinyl, acrylate, or methacrylate silanes to produce randomly dispersed silane functionality throughout the polymer and a second hydrolyzable mercapto silane to cap some polymer chains via a chain transfer reaction, wherein the polymer has a glass transition point lower than 10° Fahrenheit and an average molecular weight between about 40,000 and about 500,000. A sealant is made by adding a cross-linking catalyst and other additives to the polymer in such proportions to produce a sealant that cures upon exposure to atmospheric moisture.

Abstract: The invention relates to cholesteric polymer flakes obtainable from a chiral polymerizable mesogenic material, to methods of manufacturing such cholesteric flakes, to the use of certain chiral and achiral polymerizable compounds with one or more terminal polymerizable groups for the manufacturing of such flakes and to the use of such cholesteric flakes as effect pigments in spraying or printing inks or paints or colored plastics for different applications, especially for automotive use, cosmetic products and security applications.

Abstract: Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zone, such as to form a jet stream to entrain elastomer latex fluid sufficiently energetically to substantially completely coagulate the elastomer with the particulate filler prior to the discharge end. Highly efficient and effective elastomer coagulation is achieved without the need for a coagulation step involving exposure to acid or salt solution or the like. Novel elastomer composites are produced. Such novel elastomer composites may be cured or uncured, and combine material properties, such as choice of filler, elastomer, level of filler loading, and macro-dispersion, not previously achieved.

Abstract: The present invention provides a process in which no surfactant is used, or even if the surfactant is used the amount thereof is as small as possible, thus stably obtaining a suspension to carry out a crosslinking reaction. A production process for a crosslinked polymer particle, comprising the steps of: forming a suspension in which liquid drops of a first phase are dispersed in a second phase by stirring both phases in the presence of an inorganic particle, wherein the first phase includes a high-molecular compound and a crosslinking agent, and wherein the first phase and the second phase are insoluble in each other, and wherein the affinity of the inorganic particle for water is different from that of the high-molecular compound; and carrying out a crosslinking reaction. Furthermore, an approximately spherical crosslinked polymer particle, which is free from a surfactant.

Abstract: The instant invention describes uncharged water-soluble polymers to suppress electroosmotic flow in capillary electrophoresis. The polymers in the instant invention are copolymers of various derivatives of acrylamide and methacrylamide monomers with various glycidyl group containing monomers e.g.

Abstract: An aqueous dispersion composition to be applied to porous construction and building materials, which is of the aqueous one-component type, hence simple and easy to apply, and at the same time has both decorative and sufficient waterproofing properties is provided, as well as a coated article obtained by using the same. The aqueous dispersion composition of the present invention is characterized by containing (1) a repellent, (2) an organosilicon compound of the general formula (I) wherein R1n represents a saturated alkyl group containing 1 to 18 carbon atoms and, when nn is 2 or more, the R1n groups may be the same or different; R2n represents a saturated alkyl group containing 1 to 5 carbon atoms and, when nn is 2 or more, the R2n groups may be the same or different; and nn represents an integer of 1 to 9, and (3) a fluorine-containing resin.

Abstract: A low gloss polish formulation is described which contains at least a polymeric film former, a non-abrasive flatting agent, and a solvent. The low gloss surface covering polish formulation can be used in a number of surface coverings such as floor and countertop surfaces. The low gloss surface covering polish formulation is especially useful for surface coverings having a low gloss or matte finish. Methods of making the low gloss polish formulation are also described.