Abstract: The invention is dedicated to a colored latex comprising a mixture of an uncolored initial latex and at least one initial aqueous dispersion of at least one pigment being under the form of particles, wherein the particles of the pigment(s) are water-insoluble, and an amount of at least 90% of the particles of the one or more pigment(s) have a particle size of 370 nm or less, in the initial aqueous dispersion. The invention also relates to a process for preparing such colored latex and an ophthalmic lens coated with a layer of such colored latex.

Abstract: The invention relates to dual molecules formed from coupling products complying with the formula wherein A represents a residue of molecule with anti-malarial activity, Y1 and Y2, represent a linear or branched alkylene chain at C1 to C5, or either Y1 or Y2 is absent, U is an amine, amide, sulphonamide, carboxyl, ether or thioether function, said function linking Y1 and Y2, Z1 and Z2, represent a linear arylene or alkylene, or either Z1 or Z2 is absent, or Z1+Z2 together represent a cyclic or polycyclic structure including the junction carbons Ci and Cj, R1 and R2, represent a hydrogen atom or a functional group capable of increasing the hydrosolubility of the dual molecule, Rx and Ry form a cyclic peroxide with 4 to 8 chain links, Cj being one of the peaks of said cyclic peroxide, or -Rx or Ry is a cyclic peroxide with 4 to 8 chain links, which may comprise 1 or 2 additional oxygen atoms in the cyclic structure, and one or more substituents R3, identical or different, at least one R3 representing a hal

Abstract: Aluminum sheet products having highly anisotropic grain microstructures and highly textured crystallographic microstructures are disclosed. The products exhibit improved strength and improved resistance to fatigue crack growth, as well as other advantageous properties such as improved combinations of strength and fracture toughness. The sheet products are useful for aerospace and other applications, particularly aircraft fuselages.

Abstract: The invention relates to dual molecules formed from coupling products complying with the formula wherein A represents a residue of molecule with anti-malarial activity, Y1 and Y2, represent a linear or ramified alkylene chain at C1 to C5, with the possibility of either Y1 or Y2 being absent, U is an amine, amide, sulphonamide, carboxyl, ether or thioether function, said function linking Y1 and Y2, Z1 and Z2, represent a linear arylene or alkylene, with the possibility of either Z1 or Z2 being absent, or Z1+Z2 together represent a polycyclic structure including the junction carbons Ci and Cj, R1 and R2, represent a hydrogen atom or a functional group capable of increasing the hydrosolubility of the dual molecule, Rx and Ry form a cyclic peroxide with 4 to 8 chain links, Cj being one of the peaks of said cyclic peroxide, or Rx or Ry is a cyclic peroxide with 4 to 8 chain links, which may comprise 1 or 2 additional oxygen atoms in the cyclic structure, and one or more substituents R3, identical or

Abstract: The invention relates to dual molecules formed from coupling products complying with the formula wherein A represents a residue of molecule with anti-malarial activity, Y1 and Y2, represent a linear or ramified alkylene chain at C1 to C5, with the possibility of either Y1 or Y2 being absent, U is an amine, amide, sulphonamide, carboxyl, ether or thioether function, said function linking Y1 and Y2, Z1 and Z2, represent a linear arylene or alkylene, with the possibility of either Z1 or Z2 being absent, or Z1+Z2 together represent a polycyclic structure including the junction carbons Ci and Cj, R1 and R2, represent a hydrogen atom or a functional group capable of increasing the hydrosolubility of the dual molecule, Rx and Ry form a cyclic peroxide with 4 to 8 chain links, Cj being one of the peaks of said cyclic peroxide, or Rx or Ry is a cyclic peroxide with 4 to 8 chain links, which may comprise 1 or 2 additional oxygen atoms in the cyclic structure, and one or more substituents R3, identical or differe

Abstract: Abrasion resistant coating compositions based on silane hydrolyeates and aluminium compounds and corresponding abrasion and shock resistant coated articles The invention relates to a hardenable composition for an abrasion resistant coating comprising the following constituents: A—an epoxytrialkoxysilane hydrolysate, B—a hydrolysate of a silane having formula (I) where T1 and T2 each react to give a OH group on hydrolysis and Z1 and Z2 are unreactive organic groups, C—collcidal silica, D—a specific aluminium catalyst, E—optionally, an organic solvent with a boiling point between 70° C. and 140° C., and to corresponding coated articles, which can have nor-reflective treatments.

Abstract: Methods are provided for diagnosing and/or characterizing chronic immune disease activity in a subject. In the subject methods, a sample is obtained from a subject suspected of having or known to have a chronic immune disease. The sample is then assayed for the presence of low molecular actin fragments. The assay results are used to diagnose the presence of chronic immune disease activity and/or characterize chronic immune disease activity in the subject, e.g. to confirm an initial chronic immune disease diagnosis, to determine the stage of the disease, to monitor disease progression, to predict disease attacks, and the like. Also provided by the subject invention are kits for practicing the methods.

Abstract: The present invention relates to an organic glass ophthalmic lens having an impact-resistant primer layer based on a polyurethane latex and its manufacturing process.

Abstract: The process comprises: (1) the preparation of a mixture comprising at least one organic monomer Z with a C═C group, polymerizable by a radical process, at least one organic photochromic compound, at least one surfactant, water and optionally a polymerization primer; (2) the treatment of the mixture obtained in step (1) in order to form a miniemulsion consisting of an organic phase dispersed in the form of droplets having a diameter of 50 to 500 nm, and preferably 50 to 300 nm, in an aqueous phase; (3) the addition to the miniemulsion of a polymerization primer, if this latter was not introduced in step (1), or of a quantity of primer additional to that added in step (1); (4) the polymerization of the reaction mixture obtained in step (3), and (5) the recovery of the photochromic latex.

Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties. Such latexes can be used in the production of photochromic films. Such films may be used, for example, on optical lenses.

Abstract: The invention relates to dual molecules formed from coupling products complying with the formula 1

Abstract: Abrasion resistant coating compositions based on silane hydrolysates and aluminium compounds and corresponding abrasion and shock resistant coated articles

Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties.

Abstract: A heat-settable composition for a coating which is hydrophobic, oleophobic and resistant to abrasion, wherein the coating contains a hydrolyzate obtained from a solution of: one or more epoxidized alkoxysilane having alkoxy groups which are directly linked to the silicon atom; a hydrolyzable, non-epoxidized silane; colloidal silica; a catalyst which promotes cleavage of an epoxy bond; and at least one fluorinated hydrolyzable alkylsilane; and the use of the heat-settable composition in the preparation of a coated substrate of organic glass or mineral glass material, coated with a coating obtained from the heat-settable composition, with the substrate preferably being a pane (comprised of glass or a polymeric material) or an ophthalmic lens.

Abstract: The ophthalmic lens according to the invention includes a substrate made of organic glass, at least one abrasion-resistant coating and at least one primer layer inserted between the substrate and the abrasion-resistant coating, the impact-resistant primer layer being formed from a latex composition including at least one latex comprising butadiene units.

Abstract: The process comprises:

Abstract: The present invention relates to an organic glass ophthalmic lens having an impact-resistant primer layer based on a polyurethane latex and its manufacturing process.

Abstract: An ophthalmic lens consisting of an organic glass substrate, a hard scratchproof coating, a primary shockproof coating layer, and an anti-reflective coating, wherein the surface of said substrate is covered with said scratchproof coating and the primary shockproof coating layer is inserted between said scratchproof coating and the anti-reflective coating. A method for making said lens is also disclosed.

Abstract: An ophthalmic lens consisting of a substrate made of organic glass, of an abrasion-resistant coating, of a layer of impact-resistant primer and of an inorganic antireflective coating, wherein the surface of the said substrate is covered with the abrasion-resistant coating and in that the impact-resistant primer layer is inserted between the said abrasion-resistant layer and the anti-reflective coating, wherein the abrasion-resistant coating comprises a hydrolyzate or a mixture of hydrolyzates of a silane compound of formula: ##STR1## in which: R.sup.1 denotes an organic group containing an epoxy group;R.sup.2 is a hydrocarbon radical which has 1 or 2 carbon atoms; andR.sup.3 is a hydrocarbon group which has from 1 to 4 carbon atoms, and a is 0 or 1 in value.