Abstract: The invention relates to the use of a mixture which comprises:a) 1-5 weight % (wt. %) of phosphoric acid;b) 10-90 wt. % of phosphoric acid mono- or di- methacrylates;c) 1-15 wt. % of phosphoric acid trimethacrylates; andd) 3-50 wt. % of diphosphates having between two and four methacrylate ester groups;for the preparation of a composition for preparing a tooth surface for joining with a dental composite material. Using the composition according to the invention, a tooth cavity can be prepared in one step for laying a composite filling. A very high adhesive strength is achieved between the tooth matter and the composite material.

Abstract: Disclosed are elastomeric compounds including an elastomer and a silicon-treated carbon black, and optionally including a coupling agent. The elastomeric compound exhibits poorer abrasion resistance, lower hysterisis at high temperature and comparable or increased hysterisis at low temperature compared to an elastomer containing an untreated carbon black. Elastomeric compounds incorporating an elastomer and an oxidized, silicon-treated carbon black are also disclosed. Also disclosed are methods for preparing elastomers compounded with the treated carbon black.

Abstract: A paint composition comprising, as a leveling agent, 0.01 to 3.0 parts by weight of a polyfluorinated carbon chain-containing compound and 0.01 to 3.0 parts by weight of a silicone oil per 100 parts by weight of a film forming component and being capable of forming a film being excellent in water- and oil-repelling property and stain resistance, and painted articles being excellent in water- and oil-repelling property and stain resistance can be provided.

Abstract: Proppants comprising a particle coated with a composition comprising bisphenol-aldehyde novolak resin, a bisphenol homopolymer or mixtures including such polymers are disclosed. Foundry sands comprising a particle coated with a composition comprising bisphenol-aldehyde novolak resin, a bisphenol homopolymer or mixtures including such polymers are disclosed. Methods of making and using these proppant particles in subterranean formations or making and using these foundry sands in foundries are also disclosed.

Abstract: An aerosol propellant for sealing punctures in tires comprises a methylene chloride-in-water emulsion comprising water, methylene chloride, a curable acrylonitrile-butadiene-styrene (ABS) polymer latex and a surfactant, the emulsion having been blended with a fibrous plugging/matting agent, a carbon dioxide containing propellant or propellant blend in an amount sufficient to at least partially inflate a tire, and a corrosion inhibitor. The tire inflator/sealer provides an ozone friendly product.

Abstract: A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function:1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle,2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.

Abstract: A method for preparing a lens having UV-absorbing properties involves charging to a mold a monomer mixture comprising lens-forming monomers and an essentially non-UV-absorbing compound, and curing the monomer mixture to form a lens, followed by treating the lens to convert the essentially non-UV-absorbing compound to a UV-absorbing agent.

Abstract: Novel fillers comprising combeite glass-ceramic are provided, along with filled polymerizable resin composites. Further provided are methods for making the combeite crystallite-containing novel fillers for use in hardenable, biocompatible bone restorations. Hard, shaped bodies or orthopaedic, dental and other uses are also provided.

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: Shaped hydrogel articles such as soft contact lenses are prepared by the steps of:(1) molding or casting a polymerization mixture comprising:(a) a monomer mixture comprising a major proportion of one or more hydrophilic monomers such as 2-hydroxyethyl methacrylate, and one or more cross-linking monomers; and(b) an inert, displaceable diluent selected from the group consisting of:(i) ethoxylated alkyl glucoside;(ii) ethoxylated bisphenol A;(iii) polyethylene glycol;(iv) mixture of propoxylated and ethoxylated alkyl glucoside;(v) single phase mixture of ethoxylated or propoxylated alkyl glucoside and C.sub.2-12 dihydric alcohol;(vi) adduct of .epsilon.-caprolactone and C.sub.2-6 alkanediols and triols;(vii) ethoxylated C.sub.3-6 alkanetriol; and(viii) mixtures of one or more of (i) through (vii),under conditions to polymerize said monomer mixture to produce a shaped gel of a copolymer of said monomers and said diluent; and(2) thereafter replacing said diluent with water.

Abstract: Composites from a semi-crystalline polyolefin and nanometer sized fillers with improved modulus, tensile strength and crack growth resistance are disclosed. The nanometer sized fillers are first functionalized with an aminosilane. Thereafter, a carboxylated or maleated polyolefin is grafted to the filler through an amine-carboxyl reaction. The resulting modified filler is dispersed in a semi-crystalline polyolefin (eg. polyethylene or polypropylene). Co-crystallization between the carboxylated or maleated polyolefin and the semi-crystalline polyolefin can improve interaction between the filler and semi-crystalline polyolefin.

Abstract: A hydrophilic oxygen permeable contact lens having a front surface which is not to be in contact with the cornea of a human eye when the contact lens is worn on the human eye, wherein at least the front surface of the contact lens is coated with a hydrophilicity rendering material which renders the front surface hydrophilic and which is selected from the group consisting of: (A) hydrophilic silicone oil which is represented by the formula given in the specification and whose viscosity at a temperature of 20.degree. C. is not higher than 5,000 centipoise; (B) polysaccharide or its derivative; and (C) denatured collagen whose average molecular weight is in a range of 400.about.100,000. Also disclosed is a method of producing the hydrophilic oxygen permeable contact lens.

Abstract: A coated particle is described, which includes a metal fluoride particle and a polysiloxane coating on the surface of the particle. A dental composition is also described, which includes the coated particle, a polymerizable monomer, and a polymerization initiator.

Abstract: A dental impression silicone composition comprising: (A) 100 parts by weight of an organopolysiloxane having at least two aliphatic unsaturated hydrocarbons in one molecule; (B) from 0.1 to 30 parts by weight of an organohydrogen polysiloxane having at least three hydrogen atoms directly bonded to the silicon atom in one molecule; (C) from 10 to 500 ppm, based on the total amount of the components (A) and (B), of a silicone-soluble platinum compound; (D) from 10 to 500 parts by weight of an inorganic filler; (E) from 5 to 50 parts by weight of a fine silica powder having a BET specific surface area of from 50 to 500 m.sup.2 /g, whose surface is made hydrophobic; (F) from 0.

Abstract: Orthopedic bone cements of low porosity, prepared by mixing together at least two liquid components under conditions that allow only minimal exposure to air, are disclosed. In a preferred system, each liquid component consists essentially of a solution of a linear (non-crosslinked) polymer or copolymer of methyl methacrylate (PMMA) dissolved in a non-crosslinking methyl methacrylate (MMA) monomer, with one such solution also containing an activator and a polymerization inhibitor and a second solution containing an initiator as well as a polymerization inhibitor. No reinforcing fillers are present, although a small amount (no more than 12% by weight of the total cement composition) of a radiopacifier may be included in the composition.

Abstract: The pigment dispersion composition having a good dispersibility, a good transparence and an anti-coating properties, which contains 0.5 to 50 parts by weight of an inorganic pigment, at least one type of dispersant selected from the group consisting of a sodium salt, an ammonium salt and an amine salt of an acrylic resin, an acryl copolymer resin, a polycarbonic acid, a condensation product of aromatic formalin sulfonate, and water or a solvent miscible with water.

Abstract: An ionic contact lens made from a terpolymer of 2,3-dihydroxypropyl methacrylate, 2-hydroxyethyl methacrylate, and methacrylic acid. The contact lens has excellent properties including good strength and excellent water retention properties and excellent dimensional stability.

Abstract: The present invention offers a production method for anisotropic resin-bonded magnets with precise dimensions in high productivity. It comprises the aligning step in which the preform is preliminary compression-molded in the preforming molding die 22 in the preforming press 20 with an applied magnetic field to align the magnetization direction of the magnet powder at a temperature in which the thermosetting resin in the compound becomes liquid state, the transferring step in which said preform is transferred from preforming press 20 to densifying molding die 32 in a densifying press 30, and densifying step in which said partly cured preform is compression-molded by applying pressure in a densifying press 30 to obtain desired shape of magnet.

Abstract: A moldable composition and method of making the same, the composition including a binding mixture and filler in the form of crystalline, irregular, approximately polygonally shaped particles. The binding mixture preferably includes polyvinyl-based binders such as polyvinyl alcohol, water, a cross-linking agent such as borax, and a humectant such as propylene glycol. Furthermore, a cellulose-based thickener may be added to the binding mixture, as may a pH-adjusting compound such as sodium carbonate. The crystalline particles preferably are ground styrene having a maximum dimension ranging from one-half to three millimeters.

Abstract: A liquid ink composition containing organosols having side-chain or main-chain crystallizable polymeric moieties is described. The incorporation of organosols having crystallizable polymeric moieties into the ink compositions provide improved blocking resistance and improved erasure resistance when used in ink transfer, ionographic, electrographic and electrophotographic color printing or proofing processes.