Patent classifications
C09D17/008
ANTI-CORROSION TITANIUM DIOXIDE PIGMENTS
An anti-corrosion pigment for use in an aqueous-based coating composition is provided herein. The anti-corrosion pigment disclosed comprises a plurality of titanium dioxide particles; in the range of from about 0.05% by weight to about 1% by weight, based on the total weight of the pigment, of at least one non-volatile, organic hydroxyl amine deposited on the surfaces of the titanium dioxide particles; and in the range of from about 0.02% by weight to about 1% by weight, based on the total weight of the pigment, of at least one organic dispersant deposited on the surfaces of the titanium dioxide particles. The pigment is in dry form. An aqueous-based coating composition, a method of forming a dry anti-corrosion pigment for use in an aqueous-based coating composition, and a method of forming an aqueous-based coating composition are also provided.
METHOD FOR PREPARING PEARLESCENT PIGMENT FROM ILMENITE HYDROCHLORIC ACID ACIDOLYSIS SOLUTION BY CO-EXTRACTION
A preparation method of pearlescent pigment coating materials is provided. The method of the present invention lies in that titanium-iron ions in ilmenites are dissolved by using a hydrochloric acid at a certain temperature and pressure, and then ferrous chloride in the acidolysis solution is precipitated by adding hydrogen chloride gas, the remaining titanium-iron ions are separated from other colored ions by means of co-extraction using an extractant upon oxidation, and an enriched titanium oxydichloride solution and ferrous hydrous oxide are obtained by employing a fractional back extraction and enrichment method, the titanium oxydichloride solution can be used for mica-titanium based pearlescent pigment coating materials, and can also be used for preparing titanium dioxide; and the acidified ferrous hydrous oxide and the oxidized ferrous chloride can be used as iron based pearlescent pigment coating materials or used for preparing iron oxide pigments.
NON-METALLIC PIGMENTS HAVING METAL PROPERTIES
The present invention relates to non-metallic interference pigments, in particular laminar interference pigments, which comprise a thin high-refractive layer and an outermost layer that contains crystalline carbon in the form of graphite and/or graphene. The invention also relates to a method for producing such pigments and the use of the thus produced pigments.
Formation of high quality titania, alumina and other metal oxide templated materials through coassembly
A co-assembly method for synthesizing inverse photonic structures is described. The method includes combining an onium compound with a sol-gel precursor to form metal oxide (MO) nanocrystals, where each MO nanocrystal has crystalline and amorphous content. The MO nanocrystals are combined with templating particles to form a suspension. A solvent is evaporated from the suspension to form an intermediate or compound product, which then undergoes calcination to produce an inverse structure.
COPOLYMERIZED POLYESTER AND WATER DISPERSION
The present invention aims to provide a copolymerized polyester and a resin composition which are excellent in storage stability, water-resistant adhesion, processability, weathering resistance and leveling property. According to the present invention, there is provided a copolymerized polyester containing a polyvalent carboxylic acid component and a polyhydric alcohol component as copolymerization components, wherein, when a content of the polyvalent carboxylic acid component is taken as 100% by mole, a content of an alicyclic polyvalent carboxylic acid component is 50% by mole or more, and wherein the copolymerized polyester has an acid value of 170 to 1000 equivalents/10.sup.6 g.
WATER-BASED COATING COMPOSITION
Provided is a water-based coating composition capable of forming a multilayer coating film having an excellent finished appearance and having excellent storage stability. A water-based coating composition to be used as a water-based first colored coating (X) in a 3-coat-1-bake multilayer coating formation method which sequentially applies a water-based first colored coating (X), a water-based second colored coating (Y), and a clear coating (Z) and heats and cures the obtained three-layer multilayer coating film simultaneously, wherein the water-based coating composition contains at least one resin selected from acrylic resins (A) and polyester resins (B), a curing agent (C), and urethane resin particles (D) obtained from structural components including a polyisocyanate component (d1) containing at least one diisocyanate (d1-1) selected from xylylene diisocyanate and hydrogenated xylylene diisocyanate and a polyol component (d2).
Method for manufacturing white fine particle dispersion
The present invention relates to a process for producing a dispersion of white fine particles from which a white ink that is capable of exhibiting excellent hiding power, rub fastness and water resistance even when printed on a low-water absorbing printing medium can be obtained by incorporating the dispersion of the white fine particles into the ink, and a water-based ink for ink-jet printing which contains the white fine particles. The present invention provides [1] a process for producing a dispersion of white fine particles, including step 1 of mixing titanium oxide and a polymer dispersant at a pH value that is not less than an acid dissociation exponent (pKa) of at least a part of an acid component of the polymer dispersant to thereby obtain a titanium oxide dispersion, in which an isoelectric point (A) of the titanium oxide and the acid dissociation exponent (pKa) (B) of the polymer dispersant satisfy a relationship represented by the formula: A−B≥0, the polymer dispersant contains a constitutional unit derived from a hydrophobic monomer, and a volume median particle size (D.sub.50) of particles in the titanium oxide dispersion is from 150 to 500 nm; and step 2 of adding a polymerizable monomer to the titanium oxide dispersion obtained in the step 1 to subject the polymerizable monomer to polymerization reaction, thereby obtaining the dispersion of the white fine particles, and [2] a water-based ink for ink-jet printing which contains the white fine particles obtained above.
LAMINATE FOR RADIATIONAL COOLING AND MATERIAL FOR RADIATIONAL COOLING CONTAINING THE SAME
The present disclosure relates to a laminate for radiational cooling including a substrate layer containing a matrix of an infrared light-radiating polymer containing polycarbonate-based polyurethane and particles of a visible light-reflecting inorganic material, and an ultraviolet light-reflecting coating layer formed on the substrate layer and containing an ultra-high molecular polyolefin-based polymer. The ultraviolet light-reflecting coating layer is porous, and particles of an ultraviolet light-reflecting inorganic material disposed in pores of the ultraviolet light-reflecting coating layer.
Configurable Coating System
A coating system includes, as separate components: (a) a hiding pigment-free basecoat composition, including: (i) a basecoat resin; and (ii) a liquid carrier; and (b) and/or (c) as follows: (b) a pigment slurry composition, including: (iii) a hiding pigment; (iv) a rheology modifier; and (v) a liquid carrier; (c) an extender pigment slurry composition, including: (vi) an extender pigment; (vii) a rheology modifier; and (viii) a liquid carrier. The rheology modifier (iv) and/or (vii) includes an organic rheology modifier and an inorganic rheology modifier. The separate components are not mixed together. A method of preparing a coating composition is also disclosed.
FIRE-RETARDANT ADDITIVE WITH FIBERS FOR WATER-BASED PAINTS
The present invention is related to a tire-retardant composition, specifically directed to an additive with natural fiber components which provide fire retardant properties to water-based paints.