Abstract:
The present disclosure relates to a composition comprising: at least one dendritic polymer prepared from hyper-branched polymer with hydroxyl groups, having a plurality of peripheral functional groups, wherein the peripheral functional groups comprising at least one cyclic ether group that is covalently bound to said hyperbranched polymer by urethane linkages; and a melamine-based crosslinker. Such compositions have improved flexibility. The present disclosure further relates to the use of such compositions to form coatings after cure, or as an additive component to binder resins.
Abstract:
The present invention relates to a polymer having formula (I): wherein the line “- - - ” represents a covalent bond, or a linkage group selected from: —NRC(O)O—, —C(O)OC(O)—NR—, —C(O)NR—, —NHC(O)NH—, wherein R is H, optionally substituted C1-C6 alkyl, C1-C6 heteroalkyl, carbocycle, aryl, or heteroaryl; P is a polymer comprising y number of peripheral functional groups; L is a linker moiety selected from optionally substituted, aliphatic, branched or cyclic alkyl, aryl, phenyl, or alkylene diphenyl; A is a hydrophobic functional group; B is a hydrophilic functional group, and carboxylate; and X is a cross-linkable functional group; each of m, n and q are greater than zero, and wherein m+n+q≦y, and use of the polymer for preparing coating compositions.
Abstract:
A film-forming composition including a triazine ring-containing hyperbranched polymer with a repeating unit structure indicated by formula (1), and inorganic micro particles is provided. This enables the provision of a film-forming composition capable of hybridizing without reducing dispersion of the inorganic micro particles in a dispersion fluid, capable of depositing a coating film with a high refractive index, and suitable for electronic device film formation. In the formula, R and R′ are mutually independent and indicate a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or an aralkyl group, and Ar indicates a divalent organic group including either an aromatic ring or a heterocyclic ring, or both.
Abstract:
There is provided an aqueous dispersible polymer composition comprising: (i) a hydroxyl functional dendritic polymer; (ii) one or more polar compounds, the polar compounds being miscible with both the hydroxyl functional dendritic polymer and an aqueous solvent; and wherein the one or more polar compounds are present in an amount sufficient to disperse the hydroxyl functional dendritic polymer in the aqueous solvent. There is also provided a coating composition comprising the same and processes for preparing the aqueous dispersible polymer composition and the coating composition.
Abstract:
A method of refurbishing a surface of a component for an electronic device, includes: contacting a surface to be refurbished with an etching composition to provide a treated surface; optionally firstly cleaning the treated surface by contacting with a glass cleaner to provide a firstly cleaned surface; optionally secondly cleaning the firstly cleaned surface by contacting the firstly cleaned surface with a grease remover to provide a secondly cleaned surface; optionally contacting the secondly cleaned surface with an activator to provide an activated surface; disposing a coating resin on the treated and optionally activated surface; and curing the coating resin to provide a coated surface to refurbish the surface of the electronic device, wherein the coating resin comprises a by droxyl functional dendritic polymer; optionally an acrylic polyol; and a plurality of metal oxide nanoparticles optionally encapsulated in a hydroxyl functional polymer or a hydroxyl functional fluorosurfactant.
Abstract:
Disclosed herein is a clear coating composition comprising a dispersion of silica nano-particles prepared from silica nano-particles having reactive silane groups of 1-500 nm particle size, and at least 0.001 parts by weight of oligomer having at least two groups reactive with the silica nano-particles, or oligomer in combination with a film forming polymer, a low molecular weight coupling agent, or a combination of a film forming polymer and a low molecular weight coupling agent.
Abstract:
The present disclosure relates to an aqueous dispersible polymer composition comprising: (a) at least one of: (i) a dendritic polymer in admixture with a hydrophilic functionalizing agent; and (ii) a hydrophilic functionalized dendrimer; and (b) a non-dendritic polymer capable of forming bonds with said dendritic polymer to thereby form a dendrimer-non-dendrimer (DND) polymer hybrid that is dispersible in the aqueous phase, methods of forming the same and uses thereof.
Abstract:
A conductive composition containing carbon nanotubes, a carbon nanotube dispersant, and a dopant precursor, wherein the dispersant is a non-conjugated polymer compound having an aromatic ring as the repeating unit, and the dopant precursor is an acid-generating agent which generates cation by being subjected to light and/or heat. The aforementioned conductive composition is capable of stably dispersing carbon nanotubes and of efficiently doping same without damaging the conductive properties of the carbon nanotubes.
Abstract:
A forming material having a layer on at least one of surfaces of a support substrate material, wherein the layer contains a fluorine-containing compound, and has a 60-degree specular gloss level prescribed in JIS Z8741 (1997 edition) greater than or equal to 60%, and the layer has a surface property with a number of peaks exceeding a root-mean-square roughness (Rq) observed under an atomic force microscope (AFM) greater than or equal to 500 and less than or equal to 1500 per 25 μm2.
Abstract:
A method for producing special supramolecular assemblies of colorants, in particular cyanine dyes, called J aggregates consists in depositing a monolayer of dendrimers on a support and subsequently in deposing cyanines in solution for forming the organized monolayer of J aggregates. The method can be used for producing a secondary light source for injecting light into a waveguide from a light energy received from a primary light source emitting at different wavelength. The secondary source, which consists of the J aggregates incorporating energy acceptors, can also be integrated into an optical device incorporating the waveguide.