Patent classifications
B05D7/02
POLYMER, PROCESS AND USE
The current invention relates to a process for preparing an aqueous binder composition free of organic solvent, the process comprising at least the following steps: A) preparing a hydrophilic vinyl polymer (Polymer A) by polymerisation of a monomer composition A that contains: Ai) at least one carboxylic acid functional olefinically unsaturated monomer; and Aii) at least one olefinically unsaturated monomer different than Ai); and Aiii) optionally at least one wet adhesion promoting olefinically unsaturated monomer different than Ai and Aii); where Polymer A has an acid value (AV) from 32 to 98 mg KOH/g of solid Polymer A; B) preparing a hydrophobic vinyl polymer (Polymer B) by emulsion polymerization of a monomer composition B in the presence of Polymer A where the monomer composition B contains: Bi) at least one olefinically unsaturated monomer; Bii) optionally carboxylic acid functional olefinically unsaturated monomer different than Bi); and Biii) optionally wet adhesion promoting olefinically unsaturated monomer different than Bi); where Polymer B has an acid value (AV) of no more than 23.4 mg KOH/g of solid polymer B, wherein at least a part of the carboxylic acid groups that are present in Polymer A and Polymer B are neutralized during or following the steps A and/or B to form a (partially) neutralized polymer emulsion; where the weight average molecular weight (Mw) of Polymer A is lower than the weight average molecular weight (Mw) of polymer B; and wherein the process is further characterized by the presence of a further step C) reacting at least 10 mol % of the carboxylic acid and/or carboxylate salt groups of the (partially) neutralized polymer emulsion with an iminating agent to produce an iminated polymer C; wherein the total amount of surfactant applied in steps A, B and C is at most 0.5 wt. %, based on the total weight of monomers charged for the preparation of polymer A and polymer B
POLYMER, PROCESS AND USE
The current invention relates to a process for preparing an aqueous binder composition free of organic solvent, the process comprising at least the following steps: A) preparing a hydrophilic vinyl polymer (Polymer A) by polymerisation of a monomer composition A that contains: Ai) at least one carboxylic acid functional olefinically unsaturated monomer; and Aii) at least one olefinically unsaturated monomer different than Ai); and Aiii) optionally at least one wet adhesion promoting olefinically unsaturated monomer different than Ai and Aii); where Polymer A has an acid value (AV) from 32 to 98 mg KOH/g of solid Polymer A; B) preparing a hydrophobic vinyl polymer (Polymer B) by emulsion polymerization of a monomer composition B in the presence of Polymer A where the monomer composition B contains: Bi) at least one olefinically unsaturated monomer; Bii) optionally carboxylic acid functional olefinically unsaturated monomer different than Bi); and Biii) optionally wet adhesion promoting olefinically unsaturated monomer different than Bi); where Polymer B has an acid value (AV) of no more than 23.4 mg KOH/g of solid polymer B, wherein at least a part of the carboxylic acid groups that are present in Polymer A and Polymer B are neutralized during or following the steps A and/or B to form a (partially) neutralized polymer emulsion; where the weight average molecular weight (Mw) of Polymer A is lower than the weight average molecular weight (Mw) of polymer B; and wherein the process is further characterized by the presence of a further step C) reacting at least 10 mol % of the carboxylic acid and/or carboxylate salt groups of the (partially) neutralized polymer emulsion with an iminating agent to produce an iminated polymer C; wherein the total amount of surfactant applied in steps A, B and C is at most 0.5 wt. %, based on the total weight of monomers charged for the preparation of polymer A and polymer B
MANUFACTURE METHOD FOR MANUFACTURING AN ANTI-FOG FILM ON A GLASS AND THE LIGHT-CURING DEVICE THEREOF
A manufacturing method of anti-fog coatings on lenses is provided. The method includes: a lens assembling step, a lens spraying step, a pre-drying step, a curing step and a lens obtaining step. In the lens assembling step, a plurality of lenses are disposed on a base of a movable carrier. In the lens spraying step, the plurality of lenses are moved to a spraying device and sprayed with a light-curable anti-fog material on a surface thereof. In the pre-drying step, any extra light-curable anti-fog materials are removed from the plurality of lenses by a suction device. In the curing step, the plurality of lenses are placed into a light curing apparatus and radiated by the ultraviolet lights to form an anti-fog coating on the surface of the plurality of lenses. In the lens obtaining step, the plurality of lenses are taken out of the light curing apparatus.
METHOD FOR PREPARING COMPOSITION SUITABLE FOR ELECTROSTATIC PAINTING
Methods are provided for preparing a composition having a melt viscosity of between 160 Pas and 400 Pas, as determined according to ISO-11443-2014 at 270° C. and a shear rate of 265 1/s, and a volume resistivity of at most 10.sup.5 Ohm.Math.cm, measured according to ASTM D257 on an injection molded test sample of 3 mm thickness and a diameter of 50 mm and coated with a gold layer on an upper and lower surface and, as well as the composition itself and painted parts comprising the composition.
METHOD FOR PREPARING COMPOSITION SUITABLE FOR ELECTROSTATIC PAINTING
Methods are provided for preparing a composition having a melt viscosity of between 160 Pas and 400 Pas, as determined according to ISO-11443-2014 at 270° C. and a shear rate of 265 1/s, and a volume resistivity of at most 10.sup.5 Ohm.Math.cm, measured according to ASTM D257 on an injection molded test sample of 3 mm thickness and a diameter of 50 mm and coated with a gold layer on an upper and lower surface and, as well as the composition itself and painted parts comprising the composition.
Method of Enhancing Adhesion of Silver Nanoparticle Inks on Plastic Substrates Using a Crosslinked Poly(vinyl butyral) Primer Layer
A primer layer comprising a polyvinyl butyral resin enhances adhesion of silver nanoparticle inks onto plastic substrates. The primer layer comprises a polyvinyl butyral (PVB) resin having a polyvinyl alcohol content between about 18 wt. % to about 21 wt. %. The PVB resin may also have a glass transition temperature greater than about 70° C. Optionally, the PVB primer layer may further be enhanced by cross-linking using a melamine-formaldehyde resin. Conductive traces formed on plastic substrates having the PVB primer layer exhibit an acceptable cross-hatch adhesion rating with little to no degradation of adhesion being observed after exposure to 4-days salt mist aging or 1-day high humidity aging.
Method for making pet containers with enhanced silicon dioxide barrier coating
A process for applying a silicon oxide barrier coating to a PET container, wherein the PET container comprises a wall having an inner surface and an outer surface, the process comprising the steps of: (a) heating a PET container such that at least the outer surface is at a temperature of from about 200° F. to about 383° F.; (b) forming a coated PET container by applying at least one silicon oxide barrier layer on at least the inner surface of the PET container while the temperature of at least the outer surface of the PET container is at a temperature of from about 200° F. to about 383° F.; and (c) cooling the coated PET container after step b.
Preform coating device
A preform coating device is provided with: a conveyance part that conveys a preform; a dispenser that discharges a coating liquid toward the preform; a drier that is disposed along the conveyance route of the conveyance part so as to be separated from the dispenser, and that dries the coating liquid applied to the preform by irradiating, with infrared rays, the coating liquid applied to the preform; and a first air sending mechanism that sends air, toward the preform, for inhibiting the temperature of the preform from rising at the position where the preform is irradiated with infrared rays by the drier.
SPRAY COATING PROCESS, ARTICLE AND ASSEMBLY FOR APPLYING ANY OF A POLYURETHANE OR POLYUREA COATING TO A WIRE HARNESS, FLAT OR IRREGULAR METAL SURFACE OR PLASTIC INJECTION MOLDED PALLET
A process and related assembly for applying a fast curing plastic spray coating to a substrate article having a specified shape and size with an exposed surface. The coating can include any polyurethane or polyurea composition and incorporating a fast curing catalyst which, upon delivery to a pneumatically charged nozzle, providing for aerated application from the nozzle upon the exposed surface. The spray coating further includes a cure time of between 5-10 seconds from aerated delivery and can be applied to any of a wire harness, metal surface or injection molded plastic pallet. In the specific instance of a wire harness coating. In the instance of a wire harness article, a plurality of branches terminate in end connectors, the coating providing insulating and fire-protection to the underlying harness.
ARTICLE AND METHOD FOR MAKING AND USING SAME
An article includes a first portion including a silicone polymer; a second portion adjacent to the first portion, wherein the second portion includes a thermoplastic polymer including a functional moiety that forms a chemical bond with the silicone polymer. A method of forming an article includes providing a first portion including a silicone polymer; providing a second portion adjacent to the first portion, wherein the second portion includes a thermoplastic polymer including a functional moiety that forms a chemical bond with the silicone polymer; and curing the first portion at a temperature lower than the heat deformation temperature of the thermoplastic polymer to form the chemical bond between the functional moiety of the second portion and the silicone polymer of the first portion.