Abstract: A multitone or multicolor decorative, textured coating on a substrate comprises rigid, spheroidal polymeric beads distributed in a random pattern and embedded in a coherent coating film comprising a film-forming polymer. The beads may be colored and are of a defined size relative to the coherent coating film thickness and there is a contrast in tone or color between the coherent coating film and at least some of the beads. The coating is obtained on a substrate by applying to the substrate with a roller applicator a coating composition which contains beads of defined size.

Abstract: An inorganic filler dispersed-resin composition comprising a resin matrix and fused and spherical inorganic particles, such as ceramic particles produced by flame jet melting added in the resin matrix. The ceramic particles are selected from the group consisting of alumina, silica, magnesia, zircon, zirconia, and calcia, and the resin is selected from the group consisting of epoxy, phenol, acrylic polyester, silicone and ABS resins.

Abstract: Spherically polymerized polyolefins can be advantageously stabilized by being treated with at least one emulsion or dispersion containing a stabilizer or a mixture of stabilizers and an amine of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.20 alkyl which may be substituted by --OH, or is C.sub.3 -C.sub.50 alkyl which is interrupted by one or more oxygen atoms, or is C.sub.1 -C.sub.8 alkoxy, and each of R.sub.2 and R.sub.3 independently of the other is hydrogen or has one of the meanings indicated for R.sub.1, or R.sub.2 and Rphd 3, together with the nitrogen atom to which they are attached, form a 5- to 7-membered heterocyclic ring.

Abstract: Highly uniform polymeric microbeads of a predetermined size, preferably having an attached fluorescent label on the surface, are prepared by causing seed particles to swell by absorption of a plurality of low molecular weight substances, at least one of which is a monomer having a reactive functional group. After absorption, the monomer is internally polymerized, and the reactive functional group is preferably reacted with a polyfunctional spacing agent thereby to provide a second reactive functional group. The latter is then reacted with a fluorescent label to provide the labeled microbead.

Abstract: Highly uniform polymeric microbeads of a predetermined size, preferably having an attached fluorescent label on the surface, are prepared by causing seed particles to swell by absorption of a plurality of low molecular weight substances, at least one of which is a monomer having a reactive functional group. After absorption, the monomer is internally polymerized, and the reactive functional group is preferably reacted with a polyfunctional spacing agent thereby to provide a second reactive functional group. The latter is then reacted with a fluorescent label to provide the labeled microbead.

Abstract: Highly uniform polymeric microbeads of a predetermined size, preferably having an attached fluorescent label on the surface, are prepared by causing seed particles to swell by absorption of a plurality of low molecular weight substances, at least one of which is a monomer having a reactive functional group. After absorption, the monomer is internally polymerized, and the reactive functional group is preferably reacted with a polyfunctional spacing agent thereby to provide a second reactive functional group. The latter is then reacted with a fluorescent label to provide the labeled microbead.

Abstract: The sprayable matting lacquer is preferably applied to a transparent or translucent polymeric base film to provide the composite film with desired non-streaking matte properties so that such film becomes suitable for use by artists and the like. The matting lacquer includes a plastic resin film-forming agent, a soft matting agent formed of discrete uniformly spherical, smooth-surfaced polyolefin, preferably polyethylene particles having an average diameter not in excess of about 40 microns and preferably 10-40 microns and in a ratio of 1-3:3-1 to the resin, a relatively hard matting agent composed of particles of silica, calcium carbonate or the like, in a concentration of about 10% that of the soft matting agent, an organic solvent for the film-former and a plasticizer. The aqueous paint which is utilizable on the matted film includes the described soft matting agent, a resinous film-forming binder and dispersing agent, as well as a transparent coloring agent.

Abstract: Homopolymeric polyaldehyde microspheres can be prepared in yields of up to about 90% by preparing an aqueous solution consisting essentially of a suitable concentration of an .alpha.,.beta.-ethylenically unsaturated aldehyde and a suitable concentration of an appropriate surfactant under suitable conditions such that the surfactant has a net electrostatic charge. The solution, which may also contain a ferrofluidic material, fluorescent dye or additional solvent, is then irradiated under an inert atmosphere with a sufficient dose of .gamma.-radiation to effect polymerization and the monodisperse homopolymeric polyaldehyde microspheres so produced are recovered. Copolymeric polyaldehyde microspheres can be prepared by adding to the solution a suitable concentration of a copolymerizable comonomer before initiating polymerization.

Abstract: A coating composition, which is excellent in abrasion resistance, comprises spherical .alpha.-alumina particles, a binder and a solvent, in which said spherical .alpha.-alumina particles are contained in an amount of from 35 to 85% by weight of the solid content in the coating composition.

Abstract: A low warp, filled oxymethylene polymer composition which when molded into products, exhibits improved surface appearance and low warpage as compared to products molded from glass fiber filled oxymethylene polymer compositions. The composition contains an oxymethylene polymer, a minor proportion of a phenoxy resin which is a compound of the formula: ##STR1## and glass beads.

Abstract: Inherently tacky, elastomeric, solvent-dispersible, solvent-insoluble, polymeric microspheres prepared using a cationic emulsifier. The tacky microspheres are particularly adapted for use as a low tack microsphere glue that can be applied to a sheet material substrate whereby the latter is provided with a reusable adhesive surface.

Abstract: A crosslinkable composition comprising a silyl modified ethylene (co)polymer, a defined phosphorus or antimony compound and optionally a silanol condensation catalyst. The silyl modified polymer has hydrolysable silane groups introduced therein by copolymerization grafting or transesterification. The phosphorus or antimony compound (e.g. tributyl phosphite) reduces premature crosslinking during extrusion of the composition.

Abstract: A material with high thermal conductivity for insulating electronic parts is formed by exposure to a compressive shearing force of a compound containing 50 to 95% by volume heat conductive, inorganic powder and 5 to 50% by volume bonding agent. The bonding agent contains at least 0.2 to 30% by volume polytetrafluoroethylene (PTFE), preferably 1.0 to 20%, and synthetic rubber, where the volume ratio of rubber is 1/4 or more of the PTFE. The compressive shearing force fibrillates the PTFE and disperses the inorganic powder so that there is an even aggregation of heat conductive material. Other ingredients such as vulcanizing agents, vulcanizing accelerators, stabilizers, processing aids, flame retardents, coloring agents, and solvents may be added. The material may be reinforced with a woven or non-woven fabric or staple fibers.

Abstract: Suspension polymerization of acrolein type compounds in the presence of appropriate surfactants results in the formation of microspheres in size ranging from 0.03.mu. to 80.mu.. Fluorescent and magnetic microspheres are obtained by carrying out the same polymerization in the presence of appropriate fluorochromic or ferrofluidic compounds, respectively. Hybrido polyacrolein microspheres are obtained by grafting one type of such microspheres on another type. Immunomicrospheres were formed by binding covalently at physiological pH appropriate proteins to the microspheres. The immunomicrospheres can be used for various biological applications, such as specific markers for labelling cell surface receptors, for cell separation, for diagnostic purposes, etc.

Abstract: The present invention is a method to disperse fine solids in a resin binder matrix by use of a sand mill having non-metallic discs and containing zirconium oxide milling media. The method of the invention will disperse the fine solids without reduction of the size of the fine solids or contamination to the dispersion by fines of the zirconium oxide milling media.

Abstract: A process for the production of sheet structure, including fibres from plastics solutions containing deped, burr-shaped or fibrous polyacetylene particles, in which process the solution is shaped to form a sheet and the solvent is removed and the sheet structure thus prepared.

Abstract: Aqueous satin paints are disclosed having improved hide at lowered titanium dioxide content in which the dispersed pigment is present in an amount providing a pigment volume concentration of from 25% to 50%, and in which the pigment contains from 30% to 60% of titanium dioxide, rutile, and the balance of the pigment consists essentially of pigmented vesiculated beads and opaque polymer particles in a ratio of 60/40 to 70/30.

Abstract: Aqueous paints are disclosed having improved hide at lowered titanium dioxide content in which the dispersed pigment is present in an amount providing a pigment volume concentration of from 20% to 80%, and in which the pigment contains from 5% to 65% of titanium dioxide, rutile, and the balance of the pigment consists essentially of pigmented vesiculated beads and opaque polymer particles in a ratio of 30/70 to 90/10. The proportion of opaque polymer particles is smaller at higher pigment volume concentrations to avoid excessive impairment of the burnish and scrub resistance, but a large gain in hide is obtained, nonetheless. Gloss paints are particularly contemplated having a pigment volume concentration of from 20% to 40%, the pigment contains from 35% to 65% of titanium dioxide, rutile, and the ratio of pigmented vesiculated beads to opaque polymer particles is 30/70 to 50/50.

Abstract: Aqueous flat paints are disclosed having improved hide at lowered titanium dioxide content in which the dispersed pigment is present in an amount providing a pigment volume concentration of from 60% to 80%, and in which the pigment contains from 5% to 25% of titanium dioxide, rutile, and the balance of the pigment consists essentially of pigmented vesiculated beads and opaque polymer particles in a ratio of 80/20 to 90/10. The small proportion of opaque polymer particles used minimizes the reduction in burnish and scrub resistance, but a large gain in hide is obtained.

Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.

Abstract: This invention is directed to halogen-containing polymeric compositions containing a smoke suppressant/flame retardant comprising intimate mixtures of zinc oxide and zinc salts.

Abstract: A variable density fluid is provided comprising a multiplicity of polymer micro-particles or polymer microfilaments added to a suspending liquid. By varying the density, shape, size, and material of construction of the added micro-particles or microfilaments, the physical properties of the composite liquid suspension, such as density, viscosity and compressibility, are controllable. In one specific embodiment, the polymer micro-particles can be used to selectively remove a liquid from a mixture of liquids, such as oil from sea water for example.

Abstract: Dust is controlled on roads, in mines, on mineral and tailings piles, surfaces of pulverized coal and mineral piles contained within open transit cars such as coal cars or trucks, and other surfaces containing coal particles, rock dust, clay, soil particles and other finely divided particles subject to dusting by applying thereto a dust inhibiting amount of a liquid dispersion of watery consistency of highly branched water swellable polymer of acrylamide or an acrylamide-acrylic acid copolymer, branched and/or cross-linked with a multifunctional unsaturated monomer containing more than one ethylenically unsaturated group, said cross-linked polyer or copolymer having a three-dimensional structure and being in the form of microgelatinous particles having a particle size not exceeding approximately one micron in an oil containing emulsion form, and having the properties of swelling dramatically in water and binding dust particles upon adsorption from solution.

Abstract: Microspheres of acrolein homopolymers and co-polymer with hydrophillic comonomers such as methacrylic acid and/or hydroxyethylmethacrylate are prepared by cobalt gamma irradiation of dilute aqueous solutions of the monomers in presence of suspending agents, especially alkyl sulfates such as sodium dodecyl sulfate. Amine or hydroxyl modification is achieved by forming adducts with diamines or alkanol amines. Carboxyl modification is effected by oxidation with peroxides. Pharmaceuticals or other aldehyde reactive materials can be coupled to the microspheres. The microspheres directly form antibody adducts without agglomeration.

Abstract: A polypropylene composition comprising a crystalline polypropylene and a precipitated calcium carbonate which is subjected to a surface-treatment with a suitable dispersant, and has an average particle diameter of from 0.1 to 0.4.mu..

Abstract: This invention relates to a heat curing process and to a solventless screen printable, heat curable conductive ink composition comprising(1) an ethylenically unsaturated member of the group consisting of(a) a liquid, ethylenically, unsaturated monomer, oligomer or prepolymer of the formula: ##STR1## wherein R is H or CH.sub.3, R.sub.1 is an organic moiety and n is at least 2,(b) a polythiol in combination with (a) supra,(c) a polythiol in combination with a liquid ethylenically unsaturated monomer, oligomer or prepolymer of the formula: ##STR2## wherein R.sub.2 is H or CH.sub.3, R.sub.3 is an organic moiety and n is at least 2, and(d) mixtures of (a), (b) and (c),(2) a thermal initiator, and(3) an electrically conductive material.Heating of the composition in a desired pattern on a substrate results in a printed electric circuit.

Abstract: A solid type golf ball comprising a central core and an outer cover for the core and having an excellent flight performance and durability and acceptable "click" characteristics is presented. The main component of the outer cover of this golf ball is a polyetherester block copolymer containing the following X, Y and Z units:X: Butylene terephthalate unitY: Ester unit other than butylene terephthalateZ: Polyetherester unit derived from a dicarboxylic acid component containing terephthalic acid and poly(alkylene oxide) glycol having a number average molecular weight of 400 through 3000, wherein the X, Y and Z units are present in the following amounts:30% by weight .ltoreq.X.ltoreq.80% by weight0% by weight .ltoreq.Y.ltoreq.50% by weight20% by weight .ltoreq.Z.ltoreq.70% by weight.

Abstract: Novel glass and graphite filled copolyimides and polyimides useful as engineering plastics are prepared. Also fibers and oriented fibers from the copolyimides and polyimides derived from tetramethycyclobutane 1,2,3,4-tetracarboxylic dianhydride and diamines are disclosed.

Abstract: The specification discloses a shell for luggage and the like comprising wood fibers, glass fibers, paper scrap, glass beads, and plastic resin. The mixture is blended with water to form a slurry, is vacuum formed and is then molded under heat and pressure.

Abstract: A microcapsule-containing wax composition, which comprises (a) microcapsules of from 2 to 10 .mu.m diameter, (b) waxes and (c) dispersants, with or without pigments, fillers, volatile constituents and other agents conventionally present in wax compositions for the hot carbon process.The wall material of the microcapsules is a cross-linked urea-melamine condensate.The wax compositions may be applied over all or part of the surface of a base material, and give deeply colored copies with color-forming (CF) layers.

Abstract: A process for the preparation of copolymer dispersions having a narrow particle size distribution, and exhibiting dilatant flow over a broad range of concentrations, by emulsion copolymerization of from 1 to 10% by weight, based on total monomers, of .alpha.,.beta.

Abstract: Glass beads having a particle size of 1 to 200 microns are included as part or all of the filler in a sealing composition suitable for sealing container ends and which may be made by dispersing or dissolving solid styrene butadiene or other rubbery polymer and filler, and optionally also containing a tackifying resin, in a liquid medium.

Abstract: Spheres of cured vinyl ester resin of a size useful as a flattening agent in paper coating compositions are prepared by a process of adding an aqueous phase containing polyvinyl alcohol to a stirred vinyl ester resin phase containing a free-radical catalyst to form a resin-in-water dispersion followed by addition of a promoter and the resin allowed to cure.