A flexible display device including a hard coating layer, the hard coating layer containing first hard coating oligomers, second hard coating oligomers having greater molecular weights than the first hard coating oligomers, a cross-linker, and a photoinitiator. The first hard coating oligomers may maintain the hardness of the hard coating layer and the second hard coating oligomers may improve the flexibility of the hard coating layer, such that damage to the hard coating layer may be prevented or reduced even when the flexible display device is bent.

To provide a low dielectric constant siliceous film manufacturing composition capable of forming a low dielectric constant siliceous film with dispersed pores having excellent mechanical properties and stable electrical properties. [Means] The present invention provides a low dielectric constant siliceous film manufacturing composition comprising: a polysiloxane, a pore-generating material, a condensation catalyst generator, and a solvent.

A method of synthesizing aerogels and cross-linked aerogels in a single step and in a single pot without requiring any solvent exchange is described. Porous matrices are synthesized through a modification of hydrolysis condensation of alkoxides in which addition of water is minimized. The reaction occurs in an ethanol-water azeotrope mixture; the water in the azeotrope slowly hydrolyzes the alkoxide. Additionally, after gelation, the porous matrix is dried in supercritical ethanol rather than liquid CO.sub.2, which allows for elimination of solvent exchange steps. These modifications allow for the preparation of aerogel monoliths in any size in one step and in one pot and much faster than conventional procedures. In addition, the method provides for custom aerogel parts with large dimensions, as well as high volume fabrication of aerogels. The custom aerogel parts may be used in a variety of thermal insulation applications.

Disclosed herein is a method of forming a photocurable polymer system. The method includes providing a polymer, providing a diaryl iodonium salt, blending said polymer and diaryl iodonium salt, applying the blend to a substrate; and crosslinking the blend. The polymer can be a silicone-based polymer, such as PDMS-ECHE. The polymer can also be ETBN. The blend can be crosslinked by exposing the blend to ultraviolet light, and the crosslinking can be cationic crosslinking. In one example, the wavelength of the ultraviolet light is 254 nm. The blend can be exposed to ultraviolet light for between about 10 seconds and 90 seconds. In one example, the blend is two percent by weight of the diaryl iodonium salt to the polymer.

Provided herein are ionically conductive solid-state compositions that include ionically conductive inorganic particles in a matrix of an organic material. The resulting composite material has high ionic conductivity and mechanical properties that facilitate processing. In particular embodiments, the ionically conductive solid-state compositions are compliant and may be cast as films. In some embodiments of the present invention, solid-state electrolytes including the ionically conductive solid-state compositions are provided. In some embodiments of the present invention, electrodes including the ionically conductive solid-state compositions are provided. The present invention further includes embodiments that are directed to methods of manufacturing the ionically conductive solid-state compositions and batteries incorporating the ionically conductive solid-state compositions.

A composition includes: a compound (A), having an Si—O bond and a cationic functional group that includes at least one selected from the group consisting of a primary nitrogen atom and a secondary nitrogen atom; a compound (B), having at least three —C(═O)OX groups, wherein X is a hydrogen atom or an alkyl group with a carbon number of from 1 to 6, and from one to six of the —C(═O)OX groups is a —C(═O)OH group; and a compound (C), having a cyclic structure and at least one primary nitrogen atom that is directly bonded to the cyclic structure, the composition having a percentage of the primary and the secondary nitrogen atoms in the compound (A), with respect to a total amount of the primary and the secondary nitrogen atoms in the compound (A) and the primary nitrogen atom in the compound (C), of from 3 mol % to 95 mol %.

A composition for forming a foamed silicone elastomer is disclosed. The composition comprises: A) an organopolysiloxane having at least two silicon-bonded ethylenically unsaturated groups per molecule; B) an organohydrogensiloxane having at least two silicon-bonded hydrogen atoms per molecule; C) a hydrosilylation catalyst; D) a chemical blowing agent; and E) a physical blowing agent. The hydrosilylation catalyst C) is present in a catalytically effective amount. The chemical blowing agent D) has at least one hydroxyl (OH) group, and is present in an amount to provide a OH content >0 and <500 parts per million (ppm). The physical blowing agent E) undergoes a phase change from a liquid to a gaseous state during exposure to atmospheric pressure and a temperature ≥0° C. The blowing agents D) and E) are different from one another. A foamed silicone elastomer, and methods of forming the composition and foamed silicone elastomer are also disclosed.

Curable silicone elastomer compositions having enhanced adhesive properties with respect to a wide variety of substrates are described. The compositions described herein are provided with a phenylmethylpolysiloxane based additive which comprises at least one, alternatively at least two Si—H groups per molecule and at least one, alternatively at least two epoxide functional groups per molecule. Said phenylmethylpolysiloxane based additives provide resulting elastomers with improved heat-humidity stabilization.

The present invention relates to a modified siloxane resin, a crosslinked modified siloxane resin, and a method for preparing the crosslinked resin. More specifically, the present invention relates to a modified siloxane resin, a crosslinked modified siloxane resin with excellent superhydrophobicity obtained by dual curing of the resin, and a method for preparing the crosslinked resin. The use of the modified siloxane resin according to the present invention allows the crosslinked modified siloxane resin to have excellent superhydrophobicity and high hardness. The water repellency of the crosslinked resin can be appropriately controlled by varying the amount of the siloxane resin mixed.

Upcycling process for producing acidic, end-equilibrated siloxanes bearing acetoxy groups and having chain lengths of greater than 3 silicon atoms from end-of-life silicones by thermal digestion in an acidic reaction medium comprising acetic anhydride, acetic acid and at least one further Brønsted acid having a pKa of <4, the digestion taking place in a reactor having a volume of at least 1 liter.