The present invention provides curable, high molecular weight (>20,000 Daltons) polyimide compounds. The polyimides, once cured, possess a wide range of glass transition temperatures, have high tensile strength and high elongation. Furthermore, the cured polyimides are hydrophobic, have high glass transition temperatures, low coefficient of thermal expansion, very low dielectric constant and very low dielectric dissipation factor.

The present invention discloses a polyimide material, a preparation method thereof, and an electrochromic device, wherein the polyimide material has a polyhedral oligomeric silsesquioxane (POSS) as an end capping group. The present invention has the beneficial effects that the polyimide material, the preparation method thereof, and the electrochromic device of the present invention use an oligoaniline and a fluorescent triphenylamine fragments as raw materials to prepare a polyamic acid solution, and then introducing the polyhedral oligomeric silsesquioxane (POSS) as the end capping group of the polyimide material to give an electrochromic ability and stable electroluminescence to the polyimide material, which provides directional guidance for subsequent fluorescent displays and electrochromic devices.

Provided is a polyimide powder composition containing a thermoplastic polyimide resin powder (A) and silica particles (B) having a volume average particle size D50 of 90 nm or less.

Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formula (IV): ##STR00001##

The present invention relates to a pickering emulsion composition using polyimide particles and a method for preparing the same. The pickering emulsion stabilized by the polyimide particles according to the present invention has a very stable dispersed phase and does not cause flocculation, creaming, coalescence and phase separation even after a long time, and has an advantage of being capable of forming both an oil-in-water type emulsion and a water-in-oil type emulsion. Further, the polyimide particles used in the present invention can be synthesized in a simple manner and have partial wettability without the surface treatment and pH control so that they can be easily used for the emulsion stabilization.

A method of removing a photoresist, a laminate, a method of forming a metallic pattern, a polyimide resin, and a stripper are provided. The method of removing the photoresist includes forming a release layer on a substrate, the release layer having a first surface and a second surface opposite to each other, wherein the first surface of the release layer is in contact with the substrate; forming a photoresist layer on the second surface of the release layer; and removing the release layer and the photoresist layer. The release layer is formed by a polyimide resin. The polyimide resin is obtained by performing a polymerization of tetracarboxylic dianhydrides, diamines, and phenolamines. The diamines include hydroxyfluorinated diamines, benzoic acid diamines, and aminotetramethyldisiloxanes.

Thermally treated aerogel compositions that include polyamic amides in an amount less than the aerogel compositions that include polyamic amides prior to thermal treatment, and articles of manufacture that include or are manufactured from the aerogel compositions are described.

A benzocyclobutene-containing polyimide resin and a benzocyclobutene-containing polyimide resin composition are provided. The composition includes: (a) a filler:hollow silica, a perfluoroalkoxy alkane resin, or a combination thereof, and (b) a benzocyclobutene-containing polyimide resin with characteristics of high heat resistance, low dielectric property, low elastic modulus, and suitable for manufacturing a redistribution layer and a polyamide film of a semiconductor packaging material in a high-speed and high-frequency field.

A liquid crystal aligning agent composition for forming a liquid crystal alignment film having improved electrical characteristics and high reliability while exhibiting excellent alignment properties and durability, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the liquid crystal alignment film.

A purpose of the present invention is to provide a binder composition for a secondary battery which improves the charge and discharge efficiency and the cycle characteristics of a battery. The binder composition for a secondary battery of the present invention is characterized by comprising a polyamide-imide comprising a repeating unit represented by chemical formula (1) or a precursor thereof, ##STR00001##
wherein A is a trivalent group obtained by removing carboxyl groups from a tricarboxylic acid, B is a divalent group obtained by removing amino groups from a diamine, and at least one of A and B is an aliphatic group.