Abstract: An aqueous gloss emulsion paint comprises a dispersion of structured composite particles, said structured particles comprising an association of particles of inorganic pigment and polymeric particles. The polymeric particles are formed from a polymer or copolymer having a minimum film forming temperature not greater than 50.degree. C. The component particles of the composite particles are held in association as a result of surface charges on the particles said surface charges on the polymeric particles being of opposite sign to the surface charge on the particles of inorganic pigment. The ratio of polymeric particles to particles of inorganic pigment in the composite particles is from 0.5:1 to 6:1 by volume.

Abstract: A process to produce an article having a granite-like appearance is disclosed which consists essentially of (a) extruding a first mixture to form a second mixture; and (b) using the second mixture to form an article having a granite-like appearance. The first and second mixtures are in the form of particles where the first mixture consists essentially of about 99 to about 90 wt. % of a first particle composition and about 1 to about 10 wt. % of a second particle composition. The first particle composition consists essentially of a first polymer which consists essentially of a thermoplastic (co)polymer of ethylene and the second particle composition consists essentially of a colorant and a second polymer which consists essentially of a crosslinked thermoset (co)polymer of ethylene.

Abstract: Multimodal emulsions comprising a blend of at least one polymeric microemulsion provide for high solids and low bulk viscosity. Convenient and versitale processes for preparing multimodal emulsions are also provided. Mannich (alk)acrylamide polymeric microemulsions are among the numerous different polymeric microemulsions which may be used to prepare the multimodal emulsions.

Abstract: Aqueous composition intended to form an antimigration and antiozone protective coating on the external surface of a tire, comprising an aqueous emulsion of at least: (a) a polymer called constituent I, said constituent I being a homopolymer or copolymer based on at least one monomer chosen from the group of acrylic, methacrylic and vinyl esters and having a glass transition temperature below 0.degree. C.; and (b) a constituent II chosen from the group consisting of a hydrophilic silica and a homopolymer or copolymer based on at least one monomer chosen from the group of acrylic, methacrylic and vinyl monomers, said homopolymer or copolymer having a glass transition temperature above 25.degree. C.

Abstract: A new molding composition used, for example, in a rotationally-molded thermoplastic refuse container of the type having a hollow handle integrally-molded with a refuse carrying compartment of the container, the improvement which includes a wall integrally-formed with the refuse container and sealingly enclosing the hollow handle from communication with the refuse-carrying compartment of the container for providing greater strength to the container and preventing refuse from lodging in the hollow handles.

Abstract: A process for manufacturing thermosetting resin particles for powder coating use exhibiting improved anti-blocking property and workability is disclosed. The process include providing a suspension of the thermosetting resin particles in an aqueous medium and an emulsion or dispersion of a vinyl-based polymer having a relatively high Tg, respectively. The thermosetting resin particles are then treated with the emulsion while the resin particles are still suspended in or wetted with the aqueous medium to adhere the vinyl based polymer onto the resin particles forming a shell layer. The resin particles are dried and made to ready to use in the powder coating.

Abstract: A process for preparing an electronically-conductive thermoplastic composition having at least two phases, which includes (A) combining an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers with an electronically-conductive carbon under conditions sufficient to disperse the conductive carbon, thereby forming a mixture having at least one phase, with at least 60 percent of the carbon dispersed in a first phase which comprises at least 90 percent by weight of the mixture; and (B) combining the mixture obtained from step (A) with an amorphous or semi-crystalline thermoplastic polymer or miscible blend of polymers, at least a portion of which is immiscible in the first phase, thereby forming a composition having at least two phases. Compositions prepared by this process are sufficiently conductive to be useful for a variety of applications, such as structural materials for applications requiring electromotively-paintable substrates.

Abstract: The invention relates to high filler content plastic molded articles, which articles have a surface having a pronounced glitter appearance resembling that of a microcrystalline mineral material. The glitter effect is obtained by incorporating glitter-producing particles having a plastic basis and a specific gravity <2, in the composition of said articles. A method of manufacturing such molded articles is described, according to which all of the components are adjusted to corresponding densities. The products have a particularly durable simulated-rock appearance with good glitter characteristics.

Abstract: An adhesive composition is provided comprising:(a) a plurality of polymeric, elastomeric microspheres wherein the microspheres are the reaction product of reactants comprising polymerizable starting materials comprising at least one C.sub.4 -C.sub.14 alkyl (meth)acrylate monomer and optionally at least one comonomer and have a solvent soluble portion that is 30-98% of the microsphere.

Abstract: In a rotationally-molded thermoplastic refuse container of the type having a hollow handle integrally-molded with a refuse-carrying compartment of the container, the improvement which includes a wall integrally-formed with the refuse container and sealingly enclosing the hollow handle from communication with the refuse-carrying compartment of the container for providing greater strength to the container and preventing refuse from lodging in the hollow handles.

Abstract: In the filling of a buccal area tooth, wherein a polymerizable dental material containing a cross-linked bead poller is filled into the tooth and permitted to set, wherein the bead polymer has an average particle diameter of 2 to 100 .mu.m an inorganic filler content of to 50% by weight and a degree of swelling of 50 to 2000%, measured in THF, and is synthesized fromA: 10 to 78% by weight of C.sub.1 -C.sub.2 -alkyl (meth)acrylateB: 5 to 10% by weight of C.sub.3 -C.sub.12 -alkyl (methacrylate)C: 1 to 30% by weight of cross-linkerD: 10 to 75% by weight of an inorganic filler, andE: 0 to 30% by weight of at least one other ethylenically unsaturated monomer.The cross-linked bead polymer is new, has a solid consistency, is storable and is especially useful for filling teeth in the buccal area.

Abstract: Disclosed are a styrenic resin composition comprising (a) a styrenic resin having a weight average molecular weight of 100,000 to 2,000,000 and (b) a finely divided particulate inorganic or organic substance, the inorganic substance having a refractive index of 1.5-2.0 and an average particle diameter of 0.1-20 .mu.m, and the organic substance having a refractive index of 1.5-2.0 and an average particle diameter of 0.1-20 .mu.m and not having a glass transition temperature in a temperature range of 90.degree. C. or below, said particulate inorganic or organic substance accounting for 0.002 to 1 weight % based on the styrenic resin composition, as well as an injection-molded article prepared by molding the styrenic resin composition, and an extrusion-molded article comprising the styrenic resin composition in an amount of at least 50 weight %.

Abstract: Exceptional whiteness of glass-filled thermoplastic resin compositions is achieved by incorporating a white-pigmenting effective amount of the anatase form of titanium dioxide. The anatase form of titanium dioxide surprisingly improves the whiteness of glass-filled thermoplastic resin materials while also improving its physical properties (e.g., tensile strength and tensile elongation properties).

Abstract: A method for achieving the maximum film gloss of a dried film of a waterborne coating composition, or paint, is provided. The waterborne coating composition contains a predominant pigment and two emulsion polymers, the three particulate components having certain relative amounts and size relationships to one another.

Abstract: Powder coating composition, prepared by process comprising the steps of providing a primary film-forming component and one or more other, different, components selected from film-forming components and non-film-forming components, each said component consisting of solid particles and each particle of said primary film-forming component comprising a solid polymeric binder system at least a portion of which is a film-forming resin in an amount sufficient to impart film forming properties to the composition, the particles of said other, different, components containing at least one substance that, when processed into a coating with said primary film-forming component, provides with said primary film-forming component said desired appearance or performance attribute to said coating, provided that, if the agglomerate contains a metallic or luster component and a fluidizable film-forming component, it also contains an incompatible film-forming component or a non-film-forming performance component, or two or more su

Abstract: A powder coating composition is disclosed which includes a particulate material containing an epoxy resin and a curing agent, and fine powder of a charge controlling agent such as an acrylic resin, silica or a mixture thereof. The charge controlling agent is deposited on surfaces of the particles of the particulate material.

Abstract: A process for the preparation of toner particles which comprises a suspension polymerization followed by a starved feed monomer addition process and wherein the suspension polymerization comprises the formation of an organic phase comprised of monomer, initiator, pigment and optional toner additives; adding the organic phase to an aqueous phase comprised of water and a stabilizer; shearing the resulting organic and aqueous phase mixture; polymerizing the monomer by heating to enable toner particles; and wherein said starved feed addition comprises adding a second monomer, optionally with crosslinking agents or initiators, and heating to polymerize the added monomer.

Abstract: The multimodal latices are produced by nonmicellar aqueous emulsion polymerization of vinyl chloride in the presence of a seed consisting of a multimodal latex originating from a preceding polymerization cycle. The mean size of the elementary particles of the multimodal latices produced is identical to that of the elementary particles of the seed. The latter preferably consists of three classes of elementary particles which have mean diameters of between 0.15-0.30 .mu.m, between 0.45-0.60 .mu.m and between 1.05-1.25 .mu.m respectively.The vinyl chloride polymers originating from the multimodal latices are-particularly suitable for the manufacture of low-viscosity plastisols.

Abstract: A composition of matter is provided which comprises low-shrinkage, wet-type unsaturated polyester (B.M.C.) having high thermal conductivity, glass fibers, and a particulate aluminum nitride filler having high thermal conductivity. Also provided is an electrical component housing which possesses high thermal conductivity and heat dissipation properties including a body of a low-shrinkage, wet-type unsaturated polyester (B.M.C.) composition having high thermal conductivity.

Abstract: An aqueous coating composition comprising(A) an acrylic resin emulsion having an average particle diameter of 0.05 to 5, and(B) hydrophilic microparticles having an average diameter of 0.01 to 3, the solid weight ratio of said (A)/(B) being 99/1 to 50/50. The coating composition is excellent in storage stability and capable of forming a coating with excellent moisture permeability, water resistance, flexibility, durability and other desired film properties.

Abstract: A polymeric bead has now been developed to act as a support for other entities having a volume mean diameter of up to 250 microns and having a surface provided with pores which form at least 10% by area of the surface. At least one third of the total area of the pores is provided by pores having a larger size of at least 0.4 micron. A method for the manufacture of such polymeric beads involves using a water-in-oil-in-water emulsion technique in which the amount of water used in the preparation of the aqueous phase is not greater than 125 parts by weight per 265 parts by weight of the mixture of the polyester resin and monomer which is used.The porous beads provide an excellent base for carrying enzymes, bacteria and catalysts species useful in a wide range of applications.

Abstract: The present invention relates to granular materials of water-swellable polymers having a content of water-swellable polymer and agglomeration auxiliary agent as main component, and optionally further additional non-agglomerating components, the invention further relates to the method for the manufacture of said material, to its use as absorbents, and to disposable articles comprising these granular materials.

Abstract: Crystalline olefin polymers and copolymers in the form of spherical particles having porosity (expressed in percentage of voids) higher than 15%, with more than 90% of the pores having a pore diameter greater than one micron. These polymeric particulate materials find many applications, including, e.g., the preparation of masterbatches containing significant quantities of additives and/or pigments.

Abstract: A method of mixing micro and macro fibers into a polymer matrix and products made thereby are provided. In the illustrated method, a micro reinforcing polymer is mixed with an elastomeric base polymer and preformed macro fibers are added thereto. In one embodiment, the micro reinforcing polymer forms micro fibers in a resulting elastomeric matrix which is interspersed with macro fibers. A base polymer matrix interspersed with micro reinforcing polymer and macro fibers made according to the invention can be used in reinforced elastomeric products such as tires.

Abstract: The invention provides a base coat composition comprising a dispersion in an aqueous carrier for the composition of polymer microparticles, the polymer microparticles being a mixture of:(a) 5 to 95% by weight of addition polymer micro-particles having a crosslinked core and a stabilising mantle containing salt forming groups and(b) 95 to 5% by weight of addition polymer micro-particles having polyoxyalkylene stabiliser units derived from C.sub.1-4 alkoxypolyoxyalkylene containing monomers.

Abstract: The present invention relates to a process for preparing thermoplastic resins having a high surface gloss and excellent impact resistance.A process of the present invention comprises blending the graft polymer (D) having a grafting degree of 60.about.120% which is prepared by polymerizing an aromatic vinyl compound and a vinyl cyanide compund to 10.about.40% by weight of rubber latex (B) having 0.20.about.0.35.mu. of an average particle diameter, agglomerated by the shearing force, and the graft polymer (C) having a grafting degree of 25.about.45% which is prepred by polymerizing an aromatic vinyl compound and a vinyl cyanide compound to 40.about.80% by weight of rubber latex (A) having 0.25.about.0.40.mu. of an average particle diameter, agglomerated by the acidulation or made by the emulsion polymerization. In the said thermoplastic resins, the weight ratio of the latex (A) to the latex (B) is from 90/10 to 50/50.

Abstract: A nonsegregating dry blend of 90-30 weight percent of elongated polymer pellets having an aspect ratio, A.sub.p, of about 3-23 and a density of about 0.85-1.5 g/cm.sup.3 with 10-70 weight percent of glass fibers having an aspect ratio, A.sub.g, of 3.7-23, the A.sub.p /A.sub.g ratio being about 0.4-1.6, especially 0.8-1.2, can be fed directly to melt-fabricating equipment without first melt-blending the polymer pellets with the glass fibers and fabricated into articles having a substantially uniform glass content.

Abstract: The invention concerns powder coatings comprising thermoplastic or thermosetting type resin powder particles, each particle carrying at least on the surface thereof, a number of microparticles having an average diameter of 0.001 to 10.mu. of such resin as having a glass transition temperature of 50.degree. to 150.degree. C. and a SP value of 9 to 15, said microparticle optionally containing UV absorber or antioxidant or hardening catalyst, the weight ratio of said microparticles to the total weight of the powder coatings being 0.05 to 30% by weight. The present powder coatings are excellent in blocking resistance and capable of forming a coating with excellent stain resistance, coating appearance and other desired properties.

Abstract: Synthetic mineral compositions, methods and articles are provided in which both high polishability and flame retardancy are achieved, by encasing a particulate flame retardant such as alumina trihydrate with a resin having like polishing characteristics to the synthetic organic polymers of the synthetic mineral.

Abstract: A coating composition for a cast-coated paper which principally comprises a pigment and an adhesive and in which the adhesive is composed of (A) a rubber latex having an average particle size of 0.1 to 0.3 micron and (B) a rubber latex or an acrylic emulsion having an average particle size of 0.5 to 1.5 micron and the sum of the solid content of the components (A) and (B) is in the range of 9 to 30 parts by weight per 100 parts by weight of the pigment is herein provided. The coating composition may further contain casein as a binder. In addition, inorganic compounds selected from NaCl, Na.sub.2 SO.sub.4, ZnO and MgO and organic acid salts selected from formates or acetates of Ca, Zn, Mg may be added to the coating composition as coagulants. The use of the aforesaid coating composition makes it possible to produce cast-coated paper having excellent permeability, gloss and surface strength at a high speed.

Abstract: A method of using a particulate matter formed of a tri-dimensional cross-linked superabsorbent hydrogel for stopping leaks in a cooling system of a vehicle. The hydrogel is added to a filled coolant system and the engine is run for a period of time until the leakage stops.

Abstract: A method for preparing polymer microparticles which are stably dispersed in a nonaqueous medium involves:(a) mixing into a nonaqueous medium a polymerizable component at least 20 percent of which is insoluble in the nonaqueous medium, said polymerizable component comprising at least one polymerizable species;(b) subjecting the mixture of (a) to stress sufficient to particulate the mixture;(c) polymerizing the polymerizable component within each particle under conditions sufficient to produce polymer microparticles stably dispersed in the nonaqueous medium, said polymer microparticles being insoluble in the nonaqueous medium and the nonaqueous medium being substantially free of dissolved polymer, said polymer microparticles further characterized in that less than 20 percent of the polymer microparticles have a mean diameter greater than 5 microns.

Abstract: A polydiorganosiloxane emulsion having a combination of high polymer content and low viscosity can be produced by blending a high polymer content polydiorganosiloxane macroemulsion, having a polymer content of greater than 60 percent by weight and an average particle size of greater than 0.14 micrometers, and a high polymer content polydiorganosiloxane microemulsion, having a polymer content of from 20 to 30 percent by weight and an average particle size of less than 0.14 micrometers, with the ratio of the average particle size of the macroemulsion to the average size of the microemulsion of from 5 to 15.

Abstract: A composition is disclosed which is especially suitable for use in the pretreatment of polymers that have to be cross-linked with a radical forming cross-linking agent. The resulting shaped, cross-linked products display excellent surface properties. The composition contains a finely divided, film forming polymer, e.g. polyethylene, a finely divided rubber filler, e.g. silanized clay, and an organic peroxide, e.g. dicumyl peroxide.

Abstract: Polyolefin reinforced asphalt paving and sealing composition containing straight chain unsaturated fatty acid having up to 30 weight percent rosin as a plasticizer, plus an adhesion control component comprising high density polyolefin fines; and a corresponding method for controlling high temperature tracking and washing characteristics without aggravating mixing or plugging problems, by replacing, at least in part, regular inorganic aggregate such as sand with high density polyolefin fines.

Abstract: A repeatedly usable and releasable sheet is coated thereon with an adhesive copolymer microspheres-containing aqueous suspension and polymer microparticles prepared by polymerization of one or more vinyl monomers. In the presence of a protective colloid comprising casein, the microspheres is prepared by aqueous suspension polymerization of (a) from 70 to 99.9 percent by weight of one or more monomers selected from the group consisting of alkyl acrylate esters and alkyl methacrylate esters, (b) from 0.1 to 10 percent by weight of one or more .alpha.-monoolefin carboxylic acids and (c) from 0 to 29.9 percent by weight of one or more vinyl monomers other than the foregoing (a) and (b).

Abstract: A finely powdered polymer latex in the rod-like form having a major axis of from 0.1 to 100 microns and a minor axis of below 1/3 times the major axis. When the particles are dispersed in water at a concentration of 15 wt %, the thixotropy index, .eta.3/.eta.30 is not less than 1.5.The polymer powder of the above size and configuration is useful in various fields including paint binders, diagnostic means and cosmetics.The polymer latex is prepared by solubilizing a polymerizable monomer in rod-shaped micelles, and polymerizing the monomer while keeping the rod-shaped micelle structure.

Abstract: An aqueous coating composition which comprises at least one aqueous resin selected from polyester, alkyd, acrylic, acryl modified--polyester and acryl modified--alkyd resins, and at least one water--insoluble resinous particles obtained by the polymerization or copolymerization of .alpha., .beta.--ethylenically unsaturated monomers, which is characterized by that said resinous particles are composed of mixture of (A) group of particles having a mean grain diameter of 0.3.about.6.mu. and (B) group of particles having a mean grain diameter of 0.01.about.0.1.mu., in weight ratio of (A)/(B)=99.9/0.1.about.40/60 and that the solid weight ratio of said aqueous resin to water insoluble resinous particles is 99/1.about.15/85. The coating composition is well balanced in application characteristics and in film performance as gloss and surface smoothness and hence is quite useful as a top coat.

Abstract: The physical properties of a rubber-reinforced polymer resin are enhanced by the addition of glass fibers having a diameter which is less than 20 times greater than the volume average particle size of the disperse rubber particles in the reinforced polymer resin.

Abstract: A high solids, pumpable stable dispersion of substantially anhydrous water soluble or swellable polymer particles contains at least 70% by weight polymer and contains 1 part by weight fine polymer particles below 10 microns in size and 0.1 to 7 parts by weight coarse polymer particles having a size of 10 to 300 microns with substantially no particles above 300 microns.

Abstract: An improved polyurethane lacquer for coating an elastomer containing at least one polyfunctional aromatic nitroso compound as an adhesion improver and optionally, lacquer-nonreactive spacer particles.

Abstract: Bimodal latexes having two separate and distinct particle size distributions have high solids content, good high shear rheology and good low shear viscosity. The large size polymer particles of the bimodal latex have a heterogeneous character. These bimodal latexes, e.g., styrene/butadiene/acrylic acid/itaconic acid latexes are employed in coating paper in conjunction with a mineral filler using a coating device such as a blade coater to yield high quality, glossy coatings which can be easily applied.

Abstract: The invention relates to polymer powder compositions consisting of 1-99 wt. % of a polymer powder component A and 99-1 wt. % of a polymer powder component B, the average particle size of component A being smaller than that of component B, and to the preparation of hollow objects by rotational molding using these polymer powder compositions.

Abstract: A granular flame retardant additive is provided comprising from 70 to 99.5% by weight of an organohalide flame retardant and from 0.5 to 30% by weight of thermoplastic synthetic resin as a binder. The additive is easy to handle and resistant to disintegration during transportation and mixing with fabricating resin pellets. Uniform distribution thereof in fabricated thermoplastic articles is achieved by simply co-feeding the granules and the fabricating resin to a fabricating machine.

Abstract: A directly moldable resin composition for a composite plastic is disclosed, which comprises a predetermined amount of a mixture of pellets of a thermoplastic synthetic resin having an average size of 2.0 mm or larger and particles of a thermoplastic resin having an average size in a predetermined range, or particles of a thermoplastic resin alone having an average size of below 900 microns, and the balance of at least one filler such as particulate inorganic fillers or fibrous fillers. The particles of a thermoplastic resin should preferably be contained in an amount equal to or higher than 100% by volume of the at least one filler. When determined by a suspending tensile failure method at a tension speed of 2 mm/cm.sup.2, a particulate filler should preferably have an adhesion force in the range of below 4 g/cm.sup.2. Greater amounts of the mixture or the particles of thermoplastic resins can be used when the filler is treated on the surface thereof with organic compounds with a H.L.B.

Abstract: Bimodal latexes having two separate and distinct particle size distributions have high solids content, good high shear rheology and good low shear viscosity. These bimodal latexes, e.g., styrene/butadiene/acrylic acid/itaconic acid latexes are employed in coating paper in conjunction with a mineral filler using a coating device such as a blade coater to yield high quality coatings which can be easily applied.

Abstract: Polyvinyl alcohol synthetic fibers are used as reinforcing materials for hydraulically setting materials, and by selecting the aspect ratio of the polyvinyl alcohol fiber and the dispersing agent for said fiber, adequate dispersion is made possible even with the fiber of 2 denier or less, thereby a higher reinforcing effect may be achieved.The polyvinyl alcohol fiber is obtained by depositing 0.1-3.0% by weight based on the fiber of an oxidized polyethylene having an acid value of 5-150, and has a single yarn fineness of 0.5-2 denier, a length of 3-8 mm and an aspect ratio of 200-800, and the hydraulically setting material contains 0.1-4% by weight of said fiber.

Abstract: Improved resin reinforced, asbestos diaphragms for use in chlor-alkali cells and their method of manufacture are disclosed.

Abstract: The invention relates to a process for preparing compositions for coating metal substrates or work pieces in an aqueous bath, in which the substrate forms the cathode.In this process 5-35% by weight of at least one epoxy resin, 2-20% by weight of at least one ketone and/or hydrocarbon resin, 15-60% by weight of at least one cationic synthetic resin having functional groups--this compound is a 10-50% by weight dispersion or solution--, 5-30% by weight of at least one organic cross-linking agent, which is solid at ambient temperature and 0-73% by weight of pigments and/or conventional adjuvants are processed together in one or more stages in a grinding apparatus to form a homogeneous coating composition. At least one stage being a wet operation. The composition has a particle size of less than 100 .mu.m, preferably less than 15 .mu.m. The grinding bath is adjusted with water to the solids content required for application.

Abstract: A coating composition useful for providing a substrate with a coating having a textured appearance is composed of, on a resin solids basis, a resinous mixture of:(a) from about 40 percent to about 85 percent by weight of a film-forming fluorocarbon resin having a particle size of from about 0.1 microns to about 5 microns;(b) from 0 percent to about 50 percent by weight of an acrylic resin selected from polymers and copolymers of acrylic acid or methacrylic acid esters and copolymers of acrylic monomers containing hydroxyl or amide groups; and(c) from about 3 percent to about 50 percent by weight of particulate fluorocarbon resin having a particle size ranging from about 20 microns to about 3500 microns, said particulate fluorocarbon resin being fused with the film-forming fluorocarbon resin upon curing to provide said textured appearance.The aforesaid coating composition can be either a clear or pigment coating composition.