摘要:
A composition for forming a silica-based insulation layer, a silica-based insulation layer, and a method of manufacturing the silica-based insulation layer, the composition including a solvent; and an organosilane-based condensation polymerization product that includes a structural unit represented by the following Chemical Formula 1:
摘要:
Disclosed and claimed herein are hybrid aerogels which are compositions of tetraalkoxysilanes and bis-(trialkoxysilyl)imides that exhibit low thermal conductivities and high compressive strengths. Methods for their preparation are also provided.
摘要:
A hard coating composition including at least the following components (A) to (E): Component (A): A poly(methyl)glycidyl ether compound derived from a chain aliphatic polyol or a chain aliphatic polyether polyol, which may or may not contain a hydroxyl group, Component (B): A silsesquioxane compound containing a cationic polymerizable group, Component (C): A silicate compound, Component (D): A silane compound containing a cationic polymerizable group, or a partial condensed compound thereof, or a mixture thereof, and Component (E): A cationic photopolymerization initiator, wherein the composition includes 5 to 40 parts by weight of the component (A), 60 to 95 parts by weight of the total of the components (B), (C) and (D), and 0.1 to 10 parts by weight of the component (E), each based on 100 parts by weight of the total of the components (A) to (D).
摘要:
Nanoparticle precursor structures, nanoparticle structures, and composite materials that include the nanoparticle structures in a polymer to form a composite material. The nanoparticle structures have chemical linkage moieties capable of forming non-covalent bonds with portions of a polymer for the composite material. Such composite materials are useful as biomaterials in medical devices.
摘要:
This invention relates to a method for producing a transparent composite material comprising a first step of subjecting a synthetic smectite having a number average particle diameter of from 10 to 300 nm and an aspect ratio of from 10 to 300 to organizing treatment with an organic quaternary ammonium salt and/or an organic quaternary phosphonium salt; a second step of mixing the synthetic smectite subjected to organizing treatment and a curable resin to prepare a resin composition containing the synthetic smectite in an amount of 10 to 40 mass %; a third step of curing the resin composition to obtain a cured product; and a forth step of removing the organic volatile components remaining in the cured product. According to the method, a transparent composite material which is flexible and has a low coefficient of thermal expansion can be obtained which is reduced in outgassing at high temperature under vacuum as in vapor deposition of a conductive thin film.
摘要:
Disclosed are epoxy resins exhibiting a highly favorable combination of tensile strength and elongation with respect to prior art epoxy systems. The elastomeric epoxy resin systems of the invention are prepared utilizing a curing agent containing at least one monoprimary amine, and are particularly useful in applications such as, for example, castings, potting, composites, crack sealing, coatings, adhesives, roofing materials, flooring or reinforced membranes.