Patent classifications
C09D5/4476
Superoleophobic and/or superhydrophobic material, process for preparing same and applications thereof
The invention relates to a multilayer superoleophobic and/or superhydrophobic material comprising: on the one hand, a first constituent that is a conductive substrate or a substrate that has previously been rendered conductive (1): the surface of which is modified by chemical and/or physical treatment (2) and that incorporates a first adhesion-promoting conductive layer (3); or that incorporates a first adhesion-promoting conductive layer (3); and, on the other hand, at least one other constituent that is a superoleophobic and/or superhydrophobic polymer or copolymer layer (4, 5 or 6) composed of one or more monomers based on an aromatic or heteroaromatic ring substituted by one or more fluorocarbon and/or hydrocarbon chains. It is characterized in that the various constituents of said material comply with an increasing hydrophobicity gradient between the first layer deposited on the conductive substrate or substrate previously rendered conductive (1) and the last layer of said material.
Coating Compositions and Methods, and Articles Coated with Same
Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and sealed plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.
ELECTROPHORETIC MEDIA INCLUDING CHARGE CONTROL AGENTS COMPRISING QUARTENARY AMINES AND UNSATURATED POLYMERIC TAILS
Improved formulations of electrophoretic media that can be incorporated into displays, front plane laminates, inverted front plane laminates, or color changing films. The formulations include a non-polar fluid, a plurality of first charged particles, and charge control agents (CCA) including a quaternary amine and an unsaturated polymeric tail comprising monomers of at least 10 carbon atoms in length. The formulations show improved switching speeds, as well as a larger dynamic range at low temperatures (i.e., below about 0 C.), where compared to state-of-the-art electrophoretic media.
COATING COMPOSITIONS AND METHODS, AND ARTICLES COATED WITH SAME
Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and scaled plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.
Aqueous primary dispersions, process of their production and use thereof
The invention relates to aqueous, cationically stabilized primary dispersions comprising dispersed polymer particles having a Z-average particle diameter of 5 to 500 nm and which are obtainable by emulsion polymerization of at least one olefinically unsaturated monomer (A). The emulsion polymerization takes place in the presence of one or more emulsifiers (EQ) having the following general formula: R.sup.1N.sup.?(R.sup.2)(R.sup.3)(R.sup.4)X.sup.?, where R.sup.1 is a moiety with 15 to 40 carbon atoms which contains at least one aromatic group and at least one aliphatic group, and which contains at least one functional group selected from hydroxyl groups, thiol groups, and primary or secondary amino groups, and/or has at least one carbon-carbon multiple bond, R.sup.2, R.sup.3, and R.sup.4, independently of one another, are the same or different aliphatic moieties containing 1 to 14 carbon atoms, and X stands for the acid anion of an organic or inorganic acid. The invention further relates to a method for producing the primary dispersions, and to coating agents which include the primary dispersions, and to the use of the primary dispersions for producing electrodeposition coatings, and also to conductive substrates coated with the coating compositions. The invention further relates to emulsifiers which are used for producing the primary dispersions according to the invention.
PHOTOCURABLE COATING COMPOSITION, LOW REFRACTIVE INDEX LAYER, AND ANTIREFLECTION FILM
The present invention relates to a photocurable coating composition for forming a low refractive index layer, including: a photopolymerizable compound; inorganic fine particles; a polysilsesquioxane substituted with one or more reactive functional groups; a fluorine-based compound containing a photoreactive functional group; and a photopolymerization initiator, wherein the polysilsesquioxane substituted with one or more reactive functional groups is contained in an amount of 0.5 to 25 parts by weight based on 100 parts by weight of the photopolymerizable compound, a low refractive index layer including a photo-cured product of the photocurable coating composition, and an antireflection film including the low refractive index layer.
Electrodepositable coating composition including a phyllosilicate pigment and a dispersing agent
The present invention is directed towards an electrodepositable coating composition comprising a cationic electrodepositable binder; a phyllosilicate pigment; and a dispersing agent. Also disclosed are methods of making the electrodepositable coating composition, coatings derived therefrom, and substrates coated with the coatings derived from the electrodepositable coating composition.
Coating compositions and methods, and articles coated with same
Described are sealing primer compositions that can be used to reduce paint defects such as pops or vapor boil on painted plastic substrates, as well as related methods for sealing plastic substrates, and sealed plastic substrates. Sealing primer compositions of the invention include a functionalized polydiene polymer such as a hydroxylated or other functional-group-containing polybutadiene polymer.
Formation of organic electro-grafted films on the surface of electrically conductive or semi-conductive surfaces
The invention relates to a method for grafting an organic film onto an electrically conductive or semiconductive surface by electro-reduction of a solution, wherein the solution comprises one diazonium salt and one monomer bearing at least one chain polymerizable functional group. During the electrolyzing process, at least one protocols consisting of an electrical polarization of the surface by applying a variable potential over at least a range of values which are more cathodic that the reduction or peak potential of all diazonium salts in said solution is applied. The invention also relates to an electrically conducting or semiconducting surface obtained by implementing this method. The invention further relates to electrolytic compositions.
A METHOD OF DISPERSING A SELF-EMULSIFYING CROSSLINKER, THE OBTAINED CROSSLINKER DISPERSION AND ITS APPLICATON IN E-COAT HAVING LOW BAKING TEMPERATURE
Disclosed herein is a method of dispersing a self-emulsifying crosslinker including at least two steps: i) preparing an aqueous acid dispersion (I) of a self-emulsifying crosslinker, and the microstructure of liquid phase of the aqueous acid dispersion (I) is water-in-oil; and ii) adding water into the aqueous acid dispersion (I) to obtain an aqueous acid dispersion (II), and the microstructure of liquid phase of the aqueous acid dispersion (II) is oil-in-water. Additionally disclosed here is a self-emulsifying crosslinker dispersion prepared by the method and the self-emulsifying crosslinker dispersion has a Z-average particle size in a range of from 50 to 200 nm.