The present invention pertains to an aerogel having a thermal conductivity of 0.03 W/m.Math.K or less and a compressive elasticity modulus of 2 MPa or less at 25 C. under atmospheric pressure.

The present invention pertains to an aerogel having a thermal conductivity of 0.03 W/m.Math.K or less and a compressive elasticity modulus of 2 MPa or less at 25 C. under atmospheric pressure.

A process includes forming a bio-derived crosslinking material from biorenewable aconitic acid. The process includes initiating a chemical reaction to form a bio-derived crosslinking material that includes multiple functional groups. The chemical reaction includes converting each carboxylic acid group of a biorenewable aconitic acid molecule to one of the multiple functional groups.

The present invention pertains to an aerogel having a thermal conductivity of 0.03 W/m.Math.K or less and a compressive elasticity modulus of 2 MPa or less at 25 C. under atmospheric pressure.

A silicone emulsion composition capable of being formed into a coating film, which contains: (A) 100 parts by mass of an organopolysiloxane containing, per molecule, at least two groups each capable of binding to a silicon atom, wherein the at least two groups are independently selected from a hydroxyl group and an alkoxy group; (B) 0.1 to 50 parts by mass of a surfactant; (C) 0.01 to 10 parts by mass of at least one substance selected from cellulose and a cellulose derivative; (D) 0.5 to 50 parts by mass of colloidal silica; and (E) 50 to 1,000 parts by mass of water.

An organic functional silane composition is shown and described herein. An organic functional silane composition comprises a mixture of organic functional silane monomers where at least one of the silane monomers comprises two or more alkoxy groups having C1-C2 alkyl groups and at least one of the silane monomers comprises two or more alkoxy groups having an alkyl group of three or more carbon atoms. The organic functional silane compositions can be employed in a coating composition and can improve one or more properties of the coating including, for example, scrub resistance.

Provided are a polyimide-based film having excellent visibility, a film for a cover window, and a display device including the same.

An electronic article comprises an electronic component bonded to a composite composition. The composite composition comprises a crosslinked silicone foam having polydimethylsiloxane segments, and electromagnetically responsive particles retained in the crosslinked silicone foam. Composite compositions comprising carbon nanotubes and electromagnetic wave shielding articles including them are also disclosed.

A polymeric liquid material formed of molecular building blocks of core-shell type architecture, wherein each building block consists of a hyperbranched polysiloxane core and a functional siloxane shell peripherally attached thereto, the material comprising bridging oxygen moieties (SiOSi), hydrolysable alkoxy moieties (SiOR) and organofunctional moieties (RSi) and (R.sub.1S1-R.sub.2) and less than 0.5 mass percent hydroxy moieties (SiOH). The core has a degree of polymerization DP.sub.core in the range of 1.3 to 2.7, the shell is formed of R-substituted siloxane moieties and has a degree of polymerization DP.sub.shell in the range of 0.3 to 2.5. At least 75 atomic percent of all Si atoms in the core are bonded exclusively to alkoxy or bridging oxygens, the remainder each being bonded to 3 oxygens and 1 carbon. The total Si to free hydrolysable alkoxy molar ratio in the material is 1:1.25 to 1:2.75, and the material has a viscosity in the range of 10-100,000 cP. A method for preparing the polymeric liquid material relies on first forming the hyper-branched polysiloxane core followed by a build-up of the functional siloxane shell. To do so, a reaction scheme based on adding stoichiometric amounts of acetic anhydride in a water-free environment is exploited.

Curable organopolysiloxane compositions contain (A) organopolysiloxane resins consisting of units of the formula
R.sub.aR.sup.1.sub.b(OR.sup.2).sub.cSiO.sub.(4?a?b?c)/2 (I),
with the proviso that in formula (I) the sum of a+b+c?3, in at least one unit of the formula (I) b=1, in at least 50% of the units of the formula (I) a+b=1 and in at most 10% of the units of the formula (I) a+b=3, based in each case on all siloxane units of the formula (I) in organopolysiloxane resin (A), (B) organic compounds having at least one unit of the formula
CR.sup.3.sub.2=CR.sup.3COZ(II), (C) initiators, (D) fillers and (K) amines, wherein the radicals and indices have the definition specified in claim 1. When coarse and fine grained fillers are employed, the composition can be used to mold artificial stone.