Abstract:
The present disclosure relates to a hybrid nanoparticle comprising a metallic core and at least one lipophilic dendron attached to the surface of the metallic core, and methods of producing such hybrid nanoparticles. The present disclosure also relates to films containing the hybrid nanoparticles described herein.
Abstract:
A coating composition includes a flexible hyperbranched polyol preparable by (a) reacting a polyol comprising at least three hydroxyl groups with an aliphatic dicarboxylic acid having from 6 to 36 carbon atoms or an esterifiable derivative of the aliphatic dicarboxylic acid to form a hydroxyl-functional first intermediate product; (b) reacting the first intermediate product with a cyclic carboxylic acid anhydride to form a carboxylic acid-functional second intermediate product; and (c) reacting the second intermediate product with an epoxide-functional compound having one epoxide group to form the hyperbranched polyol. The coating composition may be cured to a coating layer having excellent flexibility.
Abstract:
The present invention provides a product and a manufacturing process for an aqueous dispersible dendritic polymer with various functionalities, and polymer compositions and polymer formulations comprising such a dendritic polymer. The aqueous dispersible dendritic polymer composition comprises a hydrophilic functional group to allow dispersion in aqueous solvents and improve washability of the polymer, a low surface tension functional group to impart resistance to dirt pick-up and optionally, a curable functional group to allow superior cross-linking capabilities and optionally, a softening functional group to impart flexibility to the composition.
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:
The invention relates to a multilayer structure comprising at least one layer of supramolecular material and one layer of rigid material, to a method for producing such a structure by casting a composition comprising a precursor of the supramolecular material, and to the uses of the structures produced, especially for applications where a dampening of impacts, vibrations and/or sound waves is desired, for example for producing locomotion vehicles such as automotive, rail, nautical, aeronautical or aerospace vehicles, or for the construction industry.
Abstract:
A hard coating film that is curled to a height of less than 20 mm and has a pencil hardness of 3H or harder, the hard coating film including a hard coating agent that includes a hyperbranched (meth)acrylate oligomer having about 50 to about 200 (meth)acrylate groups, reactive nanoparticles, and a polyfunctional monomer.
Abstract:
The present disclosure describes a strategy to create self-healing, slippery self-lubricating polymers. Lubricating liquids with affinities to polymers can be utilized to get absorbed within the polymer and form a lubricant layer (of the lubricating liquid) on the polymer. The lubricant layer can repel a wide range of materials, including simple and complex fluids (water, hydrocarbons, crude oil and bodily fluids), restore liquid-repellency after physical damage, and resist ice, microorganisms and insects adhesion. Some exemplary applications where self-lubricating polymers will be useful include energy-efficient, friction-reduction fluid handling and transportation, medical devices, anti-icing, optical sensing, and as self-cleaning, and anti-fouling materials operating in extreme environments.
Abstract:
An oxygen-scavenging composition is provided that includes an oxygen-scavenging polymer and a catalyst. The oxygen-scavenging polymer, which in preferred embodiments is suitable for use in packaging articles, is a dendritic polymer having one or more oxygen-scavenging groups.
Abstract:
A material for a surface modifying agent with which the problems of insufficient durability as abrasion and chemical resistances of surface modification effect in polyurethane surface modification by the prior surface modifying agent are resolved, and is immobilized in a matrix resin firmly and improved in durability. A reactive fluorine-containing highly branched polymer obtained by: polymerizing monomer A having in a molecule two or more radically polymerizable double bonds, monomer B having in a molecule a fluoroalkyl group and at least one radically polymerizable double bond, and monomer C having in a molecule an alcoholic hydroxy group and minimum, one radically polymerizable double bond, in presence of a polymerization initiator D in an amount of 5% to 200% by mole with respect to the number of moles of the monomer A; a curable composition containing the reactive fluorine-containing highly branched polymer; and a cured film obtained from the composition.
Abstract:
A topcoat having a polyfunctional scaffold in the form of a hyperbranched polymer (HBP) with a buoy group coupled to the HBP. The HBP can also have a “delivered” group and/or an anchor group coupled thereto. The buoy group can be a fluorinated chain end, one or more fluorinated and aliphatic chain ends and/or one or more wholly aliphatic chain ends. The “delivered” group can contain at least one of an ionic species, a fluorescent tag, a bioreactive site, a catalyst and the like, and the anchor group an epoxy, a (meth)acrylate or an isocyanate. The water-disbursable topcoat can also include a solubilizing group such as 2-butanone or 4-methyl-2-pentanone coupled to the HBP.