Abstract: Dust-control treatment of dusty powder, which mainly passes through a 100 mesh sieve, such as pigment and fertilizer, is achieved by, firstly blending the dusty powder with fibrillatable polytetrafluoroethylene and a pair of materials capable of initiating an exothermic reaction upon contact, and then subjecting the blended material to compression-shear under the exothermic reaction and raising the temperature of the blended material to 50.degree.-300.degree. C. The polytetrafluoroethylene fibrillates during the compression-shear and the formed fibrils enclose the dusty powder to turn it to a dust-controlled one.

Abstract: The present invention describes uncured fluorocarbon elastomer base compositions and cured fluorocarbon elastomer compositions comprising a fluorocarbon elastomer, an amorphous silicone resin, and optionally a polydiorganosiloxane gum or a hydrocarbon polymer elastomer. The cured fluorocarbon elastomers typically contain additional components such as an acid acceptor, a cure agent, and a filler. The cured compositions have high strength, low temperature flexibility, high solvent resistivity, and low fuel permeability.

Abstract: A process for reducing the pH of anionic polyurethane dispersions which are stabilized by carboxylate or sulfonate groups, which comprises adding a compound which has from one to four ester groups but no acid group or acid halide or anhydride group to the dispersions.

Abstract: Disclosed are flame retardant organosilicon compositions, wherein the organosilicon compositions comprise residues derived from (a) polycyclic polyene compounds and (b) residues derived from cyclic polysiloxanes, tetrahedral siloxysilanes and linear poly(organohydrosiloxane)s. Preferably the compositions contain flame retardants, such as a phosphorus containing or halogen containing flame retardant, which may be microencapsulated. Also disclosed are processes for making such compositions and articles made from such compositions.

Abstract: Polyamide-based compositions, well suited for molding into a variety of shaped articles useful, e.g., in the electrical and electronics industries, contain an effective flame-retardant amount of red phosphorus and a corrosion/migration-reducing amount of at least one zinc compound selected from among zinc oxide, zinc sulfide and an oxygen-containing zinc salt, e.g., zinc borate.

Abstract: Disclosed are flame retardant organosilicon compositions, wherein the organosilicon compositions comprise residues derived from (a) polycyclic polyene compounds and (b) residues derived from cyclic polysiloxanes, tetrahedral siloxysilanes and linear poly(organohydrosilioxane)s. Preferably the compositions contain flame retardants, such as a phosphorus containing or halogen containing flame retardant, which may be microencapsulated. Also disclosed are processes for making such compositions and articles made from such compositions.

Abstract: A gum of 5-20 wt. % polyisobutylene, 20-70 wt. % filler and 10-50 wt. % microcrystalline wax with optionally a flavorant and/or a sweetener, is flexible and soft enough to withstand repeated severe flexing yet can take and retain a dental impression after a single bite. The gum is free of crystallizable ingredients such as bulk sweeteners and therefore exhibits outstanding storage stability.

Abstract: A flame retardant resin composition comprising a mixture of:a) 10 to 70 parts by weight of an ethylene/(meth)acrylic ester copolymer;b) 30 to 90 parts by weight of a low crystalline ethylene/higher olefin copolymer;c) 0 to 30 parts by weight of an ethylene polymer selected from the group consisting of polyethylene and crystalline ethylene/.alpha.-olefin copolymers;d) 150 to 250 parts by weight, based on 100 parts by weight of the polymer components a), b) and c), of a metal hydroxide flame retardant; ande) 2 to 30 parts by weight of red phosphorus, anda flame retardant plastic optical fiber cable comprising a plastic optical fiber core and the above resin composition covering the plastic optical fiber core.

Abstract: A composition is disclosed which includes polybutylene terepthalate or polyethylene terephthalate, or blends of polybutylene terephthalate and polyethylene terephthalate, a polycarbonate, barium sulfate, strontium sulfate, zinc sulfate or zirconium oxide fillers, a phosphorus-containing stabilizer and optionally a styrene rubber impact modifier.

Abstract: A gum-colored dental composite is provided which may be used in class V dental restorations or as a cosmetic coating for the gingival portion of a tooth. A kit is also provided which enables a gum-colored dental composite to be formulated which closely resembles the natural gum coloration of any patient's gums. The dental composite may be used to counter the illusion of long teeth which occurs when a gum line recedes. The dental composite may also be used on other composite resins, porcelains and metals.

Abstract: A corrosion-resistant polyurethane coating for application directly to a face as a self-priming topcoat comprising major amount of a polyurethane binder and minor amount of a combination of pigments consisting essentially of an aluminum phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about parts by weight of at least one organic solvent.

Abstract: The present invention provides an external lubricant composition for lead stabilized vinyl polymer. The external lubricant functions as both an external lubricant and a processing aid by speeding fusion and thus, obviates the need for a separate processing aid. The external lubricant comprises an effective amount for lubricating vinyl polymer of polyethylene having a Brookfield viscosity at a temperature of 150.degree. C. of between about 1000 and about 100000 centipoises and an acid number as determined by standardized titration of KOH of between about 1 and about 40.

Abstract: The present invention relates to new glass/polymer composites and methods for making them. More specifically, the invention is glass/polymer composites having phases that are at the molecular level and thereby practicably indistinguishable. The invention further discloses making molecular phase glass/polymer composites by mixing a glass and a polymer in a compatible solvent.

Abstract: Provided is an abrasion-resistant composition comprising:(I) 100 parts by weight of a polymer component containing:(A) 50-90% by weight, based on the total polymer weight, of a polyolefinic resin having a maximum peak temperature (Tm) of higher than 125.degree. C. as measured by differential scanning calorimetry (DSC); and(B) 10-50% by weight, based on the total polymer weight, of a polyethylenic resin or rubber having a maximum peak temperature (Tm) of lower than 125.degree. C. as measured by DSC; and(II) 30-200 parts by weight of an inorganic flame retardant, said polymer component (I) containing 10.sup.-8 -10.sup.-3 gram equivalent based on 1 g of the polymers, of at least one functional group selected from:a: carboxyl group, an ester group thereof, or an anhydride group thereof,b: epoxy group,c: hydroxyl group,d: amino group,e: alkenyl cyclic imino ether group, andf: silane group.

Abstract: Stable aqueous suspensions of precipitated silica, well adopted as coatings for the papermaking industry, include an aqueous suspension of a slaked precipitated silica filter cake and an effective amount of a stabilizer therefor, which stabilizer contains (a) aluminum or an aluminum compound, and (b) an anionic dispersing agent.

Abstract: Process for making a polyester having polyethylene terephthalate units including transesterifying a terephthalic acid ester with a glycol using a manganese salt as catalyst and then subjecting the product to a polycondensation reaction using a germanium-containing catalyst to form a polyester; adding phosphorous compounds to block 80 to 99% by weight of the active manganese salt thus leaving an unblocked portion of the manganese salt prior to the polycondensation; and adding 10 to 100 ppm of Ge at the end of a ethylene glycol stage of the polymerization so that the Ge and the unblocked portion of the manganese salts provide the germanium-containing catalyst for the polycondensation reaction. The P/Mn molar ratio being less than 1. The reaction mixture contains 10 to 100 ppm of manganese during the reaction.

Abstract: Disclosed is an agricultural film produced by forming into a film a composition comprising (a) a polyolefin resin, (b) a dripping agent, (c) a heat stabilizer and (d) a weather resistance improving agent and (e) a solution of a hypophosphite compound in an organic solvent.

Abstract: A free-flowing silicone polymer powder, said powder having an average particle size of 1 to 1000 microns and being prepared by mixing a polydiorganosiloxane with a silica filler, and a phosphorus-based fire retardant compound are uniformly dispersed in an organic resin using conventional equipment, such as a single screw extruder. The resulting resin composition shows a significant improvement in fire retardancy but does not exhibit the severe deterioration of impact resistance incurred when the resin is modified with only phosphorus-based fire retardant.

Abstract: A corrosion-resistant polyurethane coating for application directly to a face as a self-priming topcoat comprising major amount of a polyurethane binder and minor amount of a combination of pigments consisting essentially of an aluminum phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 30 parts by weight of a titanium dioxide pigment, up to about 2.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent.

Abstract: A highly antioxidant resin composition containing a resin, a solution of a hypophosphite compound in an organic solvent, a heat stabilizer and a hindered amine base weathering stabilizer, which has improved heat stability and weather resistance. The hypophosphite compound is preferably dissolved in a polyvalent alcohol having a molecular weight of not more than 50,000.

Abstract: Thermoplastic elastomeric ablative insulation having good mechanical properties at extremely low temperatures are disclosed. The insulation is based upon a polyamide-ether resin and includes carefully selected fillers to possess good low temperature mechanical properties and still provide suitable charring and ablative insulation performance at low temperatures (-65.degree. F.). A typical insulation within the scope of the present invention includes a polyamide-ether thermoplastic elastomeric polymer resin, an inorganic phosphorus containing compound, such as ammonium polyphosphate, present in the insulation from about 5 to about 60 phr, and a polyhydric alcohol present, such as pentaerythritol, in the insulation from about 1 to about 30 phr. The insulation compositions within the scope of the present invention optionally include silicone resin present in the insulation in range from about 0 to 15 phr. Chopped fiber filler may also be present in the insulation in range from about 0 to 100 phr.

Abstract: Glycidyl (meth)-acrylate polymer and an organic acid, phosphoric acid, phosphorous acid, hypophosphoric acid and/or a compound other than an organic acid containing one or more functional groups selected from among carboxyl, amino, hydroxyl, acid anhydride and thiol groups added to an aromatic polycarbonate resin composition, decrease the luster of the composition without compromising the properties of the composition.

Abstract: Coatings compositions including stable composite latex-pigment particles are prepared by dispersing titanium dioxide pigment particles in a first aqueous medium and preparing a dispersion of selected polymeric latex particles, which have at least one dihydrogen phosphate functional group, in a second aqueous medium. The media are mixed and the selected polymeric latex particles adsorb on the titanium dioxide particles. Dibasic phosphate is then provided to the mixture to stop adsorption and stabilize the composite particles. The coating composition gives a coating with improved hiding.

Abstract: The invention relates to thermoplastically shapeable mixtures of COOH group-containing polymers dissolvable in an aqueous neutral or aqueous-alkaline medium with fillers. Such mixtures can be processed by thermoplastic shaping to moulded articles, which are dissolvable after use. The invention also relates to suitable copolymers for this purpose and the use thereof for the production of moulded articles.

Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.

Abstract: An adhesive composition containing a chlorinated ethylene/vinyl acetate copolymer and at least one of a phenolic resin and an aromatic nitroso compound as an adhesion-promoting additive. The chlorinated ethylene/vinyl acetate copolymer can be prepared without the utilization of environmentally hazardous chlorinated solvents and provides for adhesive compositions which exhibit excellent adhesion and resistance to adverse environmental conditions.

Abstract: This invention is directed to an alloy, and a method of producing an alloy, of increased resistance to moisture, comprising a melt mixture of at least one phosphate glass, at least one organic thermoplastic or thermosetting polymer, and an amount of a water soluble stabilizer component which provides a source of metal cations having a valency of 2.sup.+ or higher The amount of the stabilizer component added is that amount effective to improve the alloy's resistance to moisture. Preferably, the alloy is comprised of: (a) 5-80% of the matrix material; (b) 15-90% of the phosphate glass; and, (c) 0.1 to 40% of the stabilizer component. Additionally, the metal cations which are found in the stabilizer component and which form part of the insoluble surface layer are preferably selected from the group consisting of Ba.sup.2+, Mg.sup.2+, Ca.sup.2+, Al.sup.3+, Zn.sup.2+, Sr.sup.+2 and Fe.sup.3+.

Abstract: The invention describes basic calcium aluminum hydroxy phosphites of the general formulaCa.sub.x Al.sub.2 (OH).sub.2(x+3-y) (HPO.sub.3).sub.y.mH.sub.2 Owhereinx=2-12, ##EQU1## and m=0-12,with the proviso that y.noteq.1, if x=2-8.The compounds according to the invention are particularly suited as stabilizers for halogen-containing polymers, in particular PVC.

Abstract: A coating resin comprising a polymer obtained by polymerizing an unsaturated monomer represented by the formula (I): ##STR1## wherein R is H or an alkyl group, and X is selected from: ##STR2## wherein R.sup.1 to R.sup.8 represent independently a hydrocarbon group, etc., and Py is a pyridyl group, alone or together with one or more other unsaturated monomers can give an antifouling coating composition having no safety problem, good storage stability and excellent antifouling effect for a long period of time.

Abstract: Hydrotalcites are disclosed as stabilizers for vinyl halide resins where the BET has a specific surface area of at least about 40 m.sup.2 /g, preferably about 50 to 60 m.sup.2 /g.

Abstract: Non-organic solvent, non-polluting and stable emulsions of modified chlorinated polyolefins are prepared by dissolving chlorinated polyolefins and oligomers of a (metha)acrylate system uniformly in a (metha)acrylate monomer in the presence or absence of catalyst or chain transfer moderator, and suspension polymerization is achieved in an aqueous solvent. The obtained suspensions are stable more than 3 months at room temperature, and these emulsions give one coat coating films and primer coating films which have good properties such as good adhesion, and waterproof and weatherproof properties.

Abstract: A synthetic resin-coated metal pigment such as aluminum pigment has a silne coating covalently bonded to the surface of the pigment particles, and a three-dimensionally cross-linked synthetic resin coating covalently bonded to the siloxane coating. Production of the coated pigment comprises production of a silicon-organic coating on the pigment surface and then conversion of that coating into a siloxane coating by hydrolysis and condensation, followed by reaction with a low-molecular compound for forming the cross-linked synthetic resin coating. A range of uses of the coated pigment is also set forth.

Abstract: According to the present invention there is provided a polyester composition comprising an aromatic polyester having copolymerized therein a compound containing at least one sulfonic acid group or sulfonic acid metal salt group, and crosslinked polymer particles, preferably crosslinked polymer particles coated with a water-soluble polymer. The particles are incorporated in a slurried state into the polymer. There is also provided a laminate film containing the polymer with the particles thus incorporated therein.The polyester composition is superior in uniform dispersibility of the particles, re-agglomeratin does not occur in melt-storage for a long time, and films formed using the polyester composition are superior in traveling performance and abrasion resistance.

Abstract: The invention relates to thermoplastically shapeable mixtures of COOH group-containing polymers dissolvable in an aqueous neutral or aqueousalkaline medium with fillers. Such mixtures can be processed by thermoplastic shaping to moulded articles, which are dissolvable after use. The invention also relates to suitable copolymers for this purpose and the use thereof for the production of moulded articles.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of a molybdate-modified zinc phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant agent and up to about 50 parts by weight of at least one organic solvent.

Abstract: Disclosed are flame retardant organosilicon compositions, wherein the organosilicon compositions comprise residues derived from (a) polycyclic polyene compounds and (b) residues derived from cyclic polysiloxanes, tetrahedral siloxysilanes and linear poly(organohydrosiloxane)s. Preferably the compositions contain flame retardants, such as a phosphorus containing or halogen containing flame retardant, which may be microencapsulated. Also disclosed are processes for making such compositions and articles made from such compositions.

Abstract: The invention describes basic calcium aluminum hydroxy phosphites of the general formulaCa.sub.x Al.sub.2 (OH).sub.2(x+2) HPO.sub.3 .multidot.mH.sub.2 Owhereinx=2-8 andm=0-12and a process for their production.The compounds according to the invention are especially suited as stabilizers for halogen-containing polymers, in particular PVC.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of an alkaline earth metal metaborate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains from 5-40 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant and up to about 50 parts by weight of at least one organic solvent.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of a molybdate-modified zinc phosphate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant agent and up to about 50 parts by weight of at least one organic solvent.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane resin binder and a combination of pigments consisting essentially of an alkaline earth metal metaborate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains from 5-40 parts by weight of a titanium dioxide pigment, up to about 3.0 parts by weight of an oil soluble dispersant and up to about 50 parts by weight of at least one organic solvent.

Abstract: A syndiotactic polypropylene resin composition comprising a polypropylene having a substantially syndiotactic structure and a nucleating agent. The syndiotactic polypropylene may be a homopolymer of the propylene, a copolymer of the propylene and a smaller amount of another olefin or a mixture of the above-mentioned (co)polymer and an isotactic polypropylene. The resin composition preferably has a higher crystallization temperature than a polypropylene containing no nucleating agent by 5.degree. C. or more, as measurement is made by a differential scanning thermal analysis.

Abstract: Stainproofing paint composition employing concurrently(A) a polymer having an acetoacetyl group; and(B) an inorganic copper compound and/or copper.The paint has excellent coating properties on materials. If immersed in sea, the paint exhibits superior stainproofing properties for prolonged periods of time because the paint regulates the solubilization rate of copper ions.

Abstract: A weather resistant resin composition comprising a resin, a UV light absorber and a hypophosphite, which has improved weather resistance.

Abstract: An aqueous coating composition, comprisingA) an aqueous anionic polyacrylate or polyurethane dispersion obtainable by dispersing1) a polyacrylate resin, having functional groups selected from the group consisting of carboxylic acid groups, carboxylic anhydride groups or mixtures thereof in water in the presence of ammonia, or,2) a fully reacted polyurethane resin, formed from the reaction of a glycol or polyol of polyester or polyether with a diisocyanate, and then neutralized with ammonia or other amine, and dispersed in waterB) a phosphorous containing pigmentC) additives selected from the group consisting of pigments, solvents, rust inhibitors, dispersants, surfactants or mixtures thereof.The coating composition is useful as a primer for metal substrates in combination with a waterborne basecoat to give a stable metallic effect.

Abstract: Flameproofed thermoplastic molding materials comprisesA) from 5 to 93.5% by weight of a thermoplastic polyamide,B) from 5 to 85% by weight of a polyphenylene ether, of which up to 40% by weight, based on B), may be replaced by an aromatic vinyl polymer,C) from 0.5 to 20% by weight of red or black phosphorus,D) from 1 to 20% by weight of a block copolymer which has a Shore A hardness>80 and has been formed from a conjugated diene and an aromatic vinyl compound,E) from 0 to 15% by weight of an impact modifying polymer other than D),F) from 0 to 45% by weight of a fibrous or particulate filler or a mixture of a fibrous with a particulate filler,G) from 0 to 20% by weight of customary additives in effective amounts,the percentages A) to G) adding up to 100%.

Abstract: A polymeric composite of an organic polymer and an inorganic glassy polymer and a process for making such composites which are useful as protective coatings and as nonlinear optical elements.

Abstract: The present invention relates to a polycarbonate resin composition comprising:100 parts by weight of a polycarbonate resin;(A) 0.05 to 1 part by weight of long chain aliphatic alcohol represented by the general formula: C.sub.n H.sub.2n+1 OH wherein n is 25 or more; and(B) 0 to 0.001 part by weight as phosphorus atom of at least one phosphorus compound selected from the group consisting of phosphorous acid and phosphorous acid estersThe composition of the present invention is excellent in heat resistance and hydrolytic resistance, and further has good mold releasing properties.

Abstract: A wet strength resin composition is comprised of an aminopolyamide-epichlorohydrin acid salt resin having a total organically bound chlorine of up to 0.7% by weight of the resin. The amount of total organically bound chlorine present is controlled by the process parameters.

Abstract: The photoconductive range of a photoconductive polymer can be extended to include longer wavelengths, and/or the photo-induced discharge rate of a photoconductive polymer can be increased by incorporating effective amounts of clusters of IIB-VIB, IIB-VB, IIIB-VB, IIIB-VIB, IB-VIB and/or IVB-VIIB semiconductors, said clusters having a size within the range of from about 0.001 .mu.m to 10 .mu.m. Compositions comprising a photoconductive polymer and an effective amount of said clusters may be used in electrostatic imaging processes.

Abstract: A corrosion-resistant coating which can be applied directly to a surface as self-priming topcoat comprising a polyurethane binder and a combination of pigments consisting essentially of an alkaline earth metal phosphosilicate, zinc salts of benzoic acids, and an alkaline earth metal phosphate such as zinc-barium phosphate. In addition, the coating contains up to about 35 parts by weight of a titanium dioxide pigment and up to about 3.0 parts by weight of an oil soluble surface active agent and up to about 50 parts by weight of at least one organic solvent.