Patent classifications
C08J7/123
Methods involving oxygen plasma exposure to improve adhesion of silicate thermal coatings
A method of making a thermal control coating is provided. A primer layer can be applied to a substrate to form an exposed surface. The primer layer can include an epoxy binder and a silica filler. The exposed surface can be treated with an oxygen plasma to form a treated surface. A silicate-based thermal control coating can be applied to the treated surface, for example, by spraying, to form a thermal control coating on the substrate. Spacecraft and spacecraft hardware components coated with the thermal control coating, are also provided.
Polymeric surface having reduced biomolecule adhesion to thermoplastic articles of such substrate
A substrate is described having a treated contact surface comprising a carbon or silicon compound comprising from 1 to 30 atomic percent oxygen, from 0.1 to 30 atomic percent nitrogen, or both, each as measured by XPS. The treated contact surface has a biomolecule recovery percentage greater than the biomolecule recovery percentage of the surface before treatment according to the method.
COMPOSITION FOR FORMING CONDUCTIVE PATTERN, METHOD FOR FORMING CONDUCTIVE PATTERN USING SAME, AND RESIN STRUCTURE HAVING CONDUCTIVE PATTERN
The present invention relates to a composition for forming a conductive pattern which allows micro conductive patterns to be formed on various polymeric resin products or resin layers by a very simplified process, a method for forming a conductive pattern using the composition, and a resin structure having the conductive pattern. The composition for forming a conductive pattern comprises: a polymeric resin; and a nonconductive metallic compound including a first metal, a second metal and a third metal, wherein the nonconductive metallic compound has a three-dimensional structure including a plurality of first layers (edge-shared octahedral layers) having a structure in which octahedrons comprising two metals from among the first metal, the second metal and the third metal which share the edges thereof with one another are two-dimensionally connected to one other, and a second layer which includes a metal of a different type from the first layer and is arranged between adjacent first layers, and wherein a metallic core including the first metal, the second metal or the third metal or an ion thereof is formed from the nonconductive metallic compound by electromagnetic radiation.
Method for improving the water tolerance of bio-based CNF-films
The present invention relates to a continuous roll-to-roll process for improving the water tolerance of bio-based polymers, in particular cellulose nanofibrils (CNF) films. Furthermore, the invention provides a method, which combines surface modification/functionalization for improving water stability and wet strength, UV/Ozone treatment, corona treatment or plasma activation for purifying and activating the surface and thus increasing the reaction efficiency, and further hydrophobization of the surface of CNF film.
SURFACE MODIFICATION METHOD
Provided are methods for surface-modifying a thermoplastic resin which produce surfaces that show not only low adsorption of proteins and cells but also selective adsorption or adhesion of specific cells such as cancer cells, and further have excellent durability. A method for surface-modifying an object made of a thermoplastic resin, the method including: step 1 of forming polymerization initiation points on the surface of the object; and step 2 of radically polymerizing at least a hydrophilic monomer starting from the polymerization initiation points by irradiation with UV light having a wavelength of 300 to 400 nm to form a graft layer having a thickness of 2 to 100 nm on the surface of the object.
METHOD FOR PRODUCING MODIFIED MOLDED ARTICLE OF FLUORORESIN
A method for producing a modified molded article which includes molding a fluororesin to provide a molded article and irradiating the molded article with radiation at an irradiation dose of lower than 100 kGy at 50° C. to 200° C. to provide a modified molded article.
Method of modifying substrate surface
A method of modifying substrate surface includes: performing an O.sub.2 plasma treatment on a substrate including polydimethylsiloxane (PDMS); coating hydrophilic UV curing coating uniformly on the substrate; disposing the substrate into an oxygen-free environment; and exposing to an UV light to cure the hydrophilic UV curing coating. The method of modifying substrate surface may greatly enhance the hydrophilicity and the stability of the PDMS substrate.
MODIFIED PLASTIC SURFACES WITH PERFLUOROPOLYMERS AND METHOD FOR PRODUCING SAME
Modified plastic surfaces with perfluoropolymers are provided, whereby plastic surfaces that are intended for use under tribological conditions have substantially improved assembly properties and/or sliding friction properties and exhibit a very low degree of wear. Accordingly, modified plastic surfaces with perfluoropolymers are provided in which modified perfluoropolymer (micro)powders are present at the surface of plastics that comprise olefinically unsaturated double bonds at least at the surface such that the modified perfluoropolymer (micro)powders are chemically covalently bonded via a radical coupling of the olefmically unsaturated double bonds with perfluoropolymer (peroxy) radicals of the modified perfluoropolymer (micro)powders after a reactive conversion under mechanical stress at room temperature.
Recycling of superabsorbent polymer via hydrothermal microwave processing
Poly(acrylic acid)-based superabsorbent polymer (SAP) and H.sub.2O.sub.2 in a feed is converted with microwave (MW) irradiation into poly(acrylic acid) (PAA) in the product. The MW total energy used to convert SAP into PAA is less than 50 MJ/kg SAP.
POLYMERIC SURFACE HAVING REDUCED BIOMOLECULE ADHESION TO THERMOPLASTIC ARTICLES OF SUCH SUBSTRATE
A substrate is described having a treated contact surface comprising a carbon or silicon compound comprising from 1 to 30 atomic percent oxygen, from 0.1 to 30 atomic percent nitrogen, or both, each as measured by XPS. The treated contact surface has a biomolecule recovery percentage greater than the biomolecule recovery percentage of the surface before treatment according to the method.