Patent classifications
B05D5/083
Superomniphobic coatings and methods of preparation
A composition useful for producing a superomniphobic coating on a substrate, the composition comprising a colloidal suspension of a fluorinated siloxane in a non-silicon-containing fluorinated solvent. In some embodiments, the composition further comprises particles of a hydrophobized metal oxide, e.g., silicon oxide, wherein the hydrophobized metal oxide may be fluorinated. In some embodiments, the composition further comprises a non-silicon-containing fluorinated polymer. The invention is also directed to methods for making the above composition. The invention is also directed to methods for using the above-described composition for rendering a substrate superomniphobic. The aforesaid method comprises depositing a liquid coating solution onto a substrate to form a coated substrate, followed by subjecting the coated substrate to a drying step to remove a liquid phase of the liquid coating solution, wherein the liquid coating solution comprises a colloidal suspension of a fluorinated siloxane in a non-silicon-containing fluorinated solvent.
PROTECTIVE COATING AND PREPARATION METHOD THEREFOR
A protective coating is provided, including a first coating formed on a surface of a substrate by plasma polymerization deposition when the substrate contacts plasmas. The plasmas include a plasma of a monomer A and a plasma of a monomer B, wherein the monomer A includes both a silicon structural unit of formula (I) and at least one amine group structural unit of formula (II) or formula (III); and monomer B includes a terminal carboxyl group structural unit. Further disclosed is a preparation method of the protective coating, the method includes: providing a substrate, gasifying monomers including the monomer A and the monomer B and then introducing the monomers into a plasma reactor, performing a plasma discharge, and forming the first coating on the surface of the substrate by plasma polymerization. Further disclosed is a device, which is provided with the protective coating on at least part of the surface thereof.
COMPOSITE COVER PLATE, METHOD FOR PREPARING THE SAME, AND DISPLAY DEVICE CONTAINING COMPOSITE COVER PLATE
Provided is a composite cover plate including a substrate body, wherein the substrate body includes two surfaces that are arranged opposite, at least one surface is provided with an antistatic film layer; the antistatic film layer includes a perfluoropolyether mixture and a silane coupling agent. Further provided is a method for preparing a composite cover plate, including: providing a substrate body with two surfaces that are arranged opposite, and spraying an antistatic film layer on at least one surface of the substrate body; wherein the antistatic film layer includes a perfluoropolyether mixture and a silane coupling agent. Further provided is a display device including a display module and a composite cover plate covering the surface of the display module, wherein the composite cover plate is any composite cover plate provided herein, an antistatic film layer is arranged on a side of the composite cover plate away from the display module.
Methods and formulations for superhydrophic, self-cleaning, and icephobic polymer coatings and objects having coatings thereon
An object has a superhydrophic, self-cleaning, and icephobic coating includes a substrate and a layer disposed on the substrate, the layer resulting from coating with a formulation having an effective amount of microstructuring microparticles, liquid silane having one or more groups configured to graft to a microstructuring microparticle and at least another group that results in hydrophobicity. The microstructuring microparticles are dispersed in the liquid silane. Another effective amount of synthetic adhesive, selected from thermosetting adhesives, moisture curing adhesives or polymers that form a strong interaction with a surface, is in solution with a solvent. Upon curing, the layer has a contact angle greater than 90° and a sliding angle of less than 10° and, less than 5% of an area of the layer is removed in a Tape test.
METHOD FOR FORMING A COATING ON AN ELECTRONIC OR ELECTRICAL DEVICE
An electronic or electrical device or component thereof having a coating formed thereon by exposing said electronic or electrical device or component thereof to a plasma comprising one or more monomer compounds for a sufficient period of time to allow a protective polymeric coating to form on a surface thereof; wherein the protective polymeric coating forms a physical barrier over a surface of the electronic or electrical device or component thereof; wherein each monomer is a compound of formula I(a):
##STR00001##
or a compound of formula I(b)
##STR00002##
Optical coating method, apparatus and product
This disclosure is directed to an improved process for making glass articles having optical coating and easy-to clean coating thereon, an apparatus for the process and a product made using the process. In particular, the disclosure is directed to a process in which the application of the optical coating and the easy-to-clean coating can be sequentially applied using a single apparatus. Using the combination of the coating apparatus and the substrate carrier described herein results in a glass article having both optical and easy-to-clean coating that have improved scratch resistance durability and optical performance, and in addition the resulting articles are “shadow free.”
ADDITIVELY MANUFACTURING FLUORINE-CONTAINING POLYMERS
A system and method of additively manufacturing a part including electrically conductive or static dissipating fluorine-containing polymers. The method includes depositing fluorine-containing polymer additive manufacturing material onto a build platform, selectively cross-linking portions of the deposited additive manufacturing material, and curing the selectively cross-linked portions such that the part is at least one of electrically conductive and static dissipating.
COATINGS
The present invention provides an electronic or electrical device or component thereof comprising a cross-linked polymeric coating on a surface of the electronic or electrical device or component thereof; wherein the cross-linked polymeric coating is obtainable by exposing the electronic or electrical device or component thereof to a plasma comprising a monomer compound and a crosslinking reagent for a period of time sufficient to allow formation of the cross-linked polymeric coating on a surface thereof,
wherein the monomer compound has the following formula:
##STR00001##
where R.sub.1, R.sub.2 and R.sub.4 are each independently selected from hydrogen, optionally substituted branched or straight chain C.sub.1-C.sub.6 alkyl or halo alkyl or aryl optionally substituted by halo, and R.sub.3 is selected from:
##STR00002##
where each X is independently selected from hydrogen, a halogen, optionally substituted branched or straight chain C.sub.1-C.sub.6 alkyl, halo alkyl or aryl optionally substituted by halo; and n.sub.1 is an integer from 1 to 27; and wherein the crosslinking reagent comprises two or more unsaturated bonds attached by means of one or more linker moieties and has a boiling point at standard pressure of less than 500° C.
FLUOROPOLYETHER GROUP-INCLUDING COMPOUND
A fluoropolyether group-containing compound of formula (1) or (2):
##STR00001##
wherein R.sup.F1, R.sup.X1, R.sup.X2 and R.sup.Si are as defined herein.
Silane compound containing perfluoro(poly)ether group
A perfluoro(poly)ether group containing silane compound of formula (1a) or (1b):
(Rf-PFPE).sub.β-X—(CR.sup.a.sub.kR.sup.b.sub.lR.sup.c.sub.m).sub.α (1a)
(R.sup.c.sub.mR.sup.b.sub.lR.sup.a.sub.kC).sub.α—X-PFPE-X—(CR.sup.a.sub.kR.sup.b.sub.lR.sup.c.sub.m).sub.α (1b)
wherein the symbols are as defined herein.