B05D2505/50

Fluoropolymer coatings and related methods

A coating for a medical device or appliance may include a fluoropolymer and a polyimide. Such coatings may provide a lubricious exterior surface that facilitates insertion or displacement of a medical device in a body lumen. Some coatings that include a fluoropolymer and a polyimide may, among other functions and characteristics, provide increased strength and/or durability relative to some other coatings.

Method for Pore Sealing of Porous Materials Using Polyimide Langmuir-Blodgett Film

Method for pore sealing a porous substrate, comprising: forming a continuous monolayer of a polyimide precursor on a liquid surface, transferring said polyimide precursor monolayer onto the porous substrate with the Langmuir-Blodgett technique, and imidization of the transferred polyimide precursor monolayers, thereby forming a polyimide sealing layer on the porous substrate. Porous substrate having at least one surface on which a sealing layer is provided to seal pores of the substrate, wherein the sealing layer is a polyimide having a thickness of a few monolayers and wherein there is no penetration of the polyimide into the pores.

Method for microwave processing of photosensitive polyimides

A method for curing photosensitive polyimide (PSPI) films includes the steps of: depositing a PSPI film on a selected substrate, and curing the film by microwave heating at a selected temperature from about 200 to 340? C. in a selected atmosphere containing an oxygen concentration from about 20 to 200,000 ppm. The process atmosphere may be static or flowing. The addition of oxygen improves the removal of acrylate residue and improves the T.sub.g of the cured film, while the low processing temperature characteristic of the microwave process prevents the oxygen from damaging the polyimide backbone. The method may further include the steps of photopatterning and developing the PSPI film prior to curing. The process is particularly suitable for dielectric films on silicon for electronic applications.

PREVENTION OF BIOFILM FORMATION

Antibacterial coatings and methods of making the antibacterial coatings are described herein. A first branched polyethylenimine (BPEI) layer is formed and a first glyoxal layer is formed on a surface of the BPEI layer. The first BPEI layer and the first glyoxal layer are cured to form a crosslinked BPEI coating. The first BPEI layer can be modified with superhydrophobic moieties, superhydrophilic moieties, or negatively charged moieties to increase the antifouling characteristics of the coating. The first BPEI layer can be modified with contact-killing bactericidal moieties to increase the bactericidal characteristics of the coating.

MANUFACTURING METHOD FOR SLIDING MEMBER FOR FIXING DEVICE
20180275571 · 2018-09-27 ·

Relating to a sliding member for a fixing device having a resin coating film on a sliding surface, to provide a manufacturing method for the peeling member for the fixing device capable of forming a fine recessed groove as a lubricant reservoir on a surface of the resin coating film. The manufacturing method for the sliding member for the fixing device includes a coating film forming step of forming a resin coating film by drying a resin coating material after applying the resin coating material including a matrix resin on at least a sliding surface of the base material of the sliding member slid on the belt member, a coating film baking step of baking and hardening the resin coating film, and a recessed portion forming step of forming a recessed portion, which becomes a lubricant reservoir when the coating film baking step is performed, on the surface of the resin coating film, after the coating film forming step and before the coating film baking step.

HIGH-PERFORMANCE STRESS BUFFER DIE-COAT AND DEVICES AND PROCESSES IMPLEMENTING THE SAME
20240321663 · 2024-09-26 ·

A device may include device parts, a composite coating material arranged on one or more of the device parts, and a molding compound arranged on and/or around one or more of the device parts. Moreover, the device may include where the composite coating material may include a polymer matrix including and/or incorporating ceramic particles.

AQUEOUS COATING MATERIAL COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
20240309239 · 2024-09-19 ·

An object of the present invention is to provide an aqueous coating material composition that has excellent storage stability and that demonstrates high coating film performance and strong glass adhesiveness even when cured at a relatively low temperature. The present invention discloses an aqueous coating material composition including (A) a hydroxyl group- and carboxyl group-containing resin, (B) a blocked polyisocyanate compound, (C) a polycarbodiimide compound, and (D) a basic compound. The basic compound (D) includes (D1) a basic compound having an acid dissociation constant (PKa) in a range from 7.0 to 8.5 and a boiling point in a range from 100 to 200? C. A content ratio of the basic compound (D1) is in a range from 30 to 100 mass % based on the mass of the basic compound (D). The aqueous coating material composition has a pH in a range from 8.0 to 11.5.

AQUEOUS COATING MATERIAL COMPOSITION AND METHOD FOR FORMING MULTILAYER COATING FILM
20240309239 · 2024-09-19 ·

An object of the present invention is to provide an aqueous coating material composition that has excellent storage stability and that demonstrates high coating film performance and strong glass adhesiveness even when cured at a relatively low temperature. The present invention discloses an aqueous coating material composition including (A) a hydroxyl group- and carboxyl group-containing resin, (B) a blocked polyisocyanate compound, (C) a polycarbodiimide compound, and (D) a basic compound. The basic compound (D) includes (D1) a basic compound having an acid dissociation constant (PKa) in a range from 7.0 to 8.5 and a boiling point in a range from 100 to 200? C. A content ratio of the basic compound (D1) is in a range from 30 to 100 mass % based on the mass of the basic compound (D). The aqueous coating material composition has a pH in a range from 8.0 to 11.5.

Pouch-type secondary battery and method of manufacturing the same

A pouch-type secondary battery and a method of manufacturing same are capable of completely protecting a metal layer from moisture or air by forming an insulating coating layer including a conformal coating layer on the metal layer exposed at a cut surface of a battery case. The method includes a first step of preparing a battery case including an upper case and a lower case by cutting a laminate sheet including an outer coating layer, a metal layer, and an inner coating layer; a second step of receiving an electrode assembly between the upper case and the lower case; a third step of forming a sealing portion by contacting outer peripheries of the upper case and the lower case; and a fourth step of forming a conformal coating layer on a side surface of the sealing portion so as to prevent exposure of the metal layer.

Vapor phase deposition of organic films

Methods and apparatus for vapor deposition of an organic film are configured to vaporize an organic reactant at a first temperature, transport the vapor to a reaction chamber housing a substrate, and maintain the substrate at a lower temperature than the vaporization temperature. Alternating contact of the substrate with the organic reactant and a second reactant in a sequential deposition sequence can result in bottom-up filling of voids and trenches with organic film in a manner otherwise difficult to achieve. Deposition reactors conducive to depositing organic films are provided.