A type of polyester yarn for an industrial sewing thread and preparing method thereof are provided. The preparing method is composed of a viscosity enhancing by a solid state polycondensation and a melt spinning for a modified polyester, and the modified polyester is a product of esterification and polycondensation of evenly mixed terephthalic acid, ethylene glycol, tert-butyl branched dicarboxylic acid, trimethylsilyl branched diol and a doped Sb.sub.2O.sub.3 powder, wherein the tert-butyl branched dicarboxylic acid is selected from the group consisting of 5-tert-butyl-1,3-benzoic acid, 2-tert-butyl-1,6-hexanedioic acid, 3-tert-butyl-1,6-hexanedioic acid and 2,5-di-tert-butyl-1,6-hexanedioic acid. Moreover, the modified polyester is dispersed with a doped ZrO.sub.2 powder. An obtained fiber has an intrinsic viscosity drop of 23-28% when stored at 25° C. and R.H. 65% for 60 months.

Disclosed herein are embodiments of aryl compounds and polymers thereof that are made using methods that do not require harsh conditions or expensive reagents. The methods disclosed herein utilize precursor compounds that can be polymerized to form polycyclic aromatic hydrocarbons and polymers, such as carbon-based polymers like nanostructures (e.g., graphene or graphene-like nanoribbons).

Provided are a compound of 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based bisoxazoline ligand, an intermediate, a preparation method and uses thereof. The compound of bisoxazoline ligand is a compound having a structure represented by formula I, or an enantiomer, a raceme, or diastereomer thereof. The bisoxazoline ligand can be prepared via a preparation scheme in which the cheap and easily available 6,6′-dihydroxyl-3,3,3′,3′-tetramethyl-1,1′-spirobiindane is used as a starting raw material and the compound represented by formula II serves as the key intermediate through a series of reactions. The new bisoxazoline ligand developed by the present application can be used in catalytic organic reaction, in particular as a chiral bisoxazoline ligand that is widely used in many asymmetric catalytic reactions of metal catalysis, and thus it has economic practicability and industrial application prospect. ##STR00001##

The present invention provides an electrolyte solution for a non-aqueous electrolyte battery capable of an exerting high average discharge voltage and an excellent low-temperature output characteristic at −30° C. or lower and an excellent cycle characteristic and an excellent storage characteristic at high temperatures of 50° C. or higher, as well as a non-aqueous electrolyte battery containing the same. The present electrolyte solution comprises a non-aqueous solvent, a solute, at least one silane compound represented by the following general formula (1) as a first compound, and a fluorine-containing compound represented by the following general formula (3), for example, as a second compound.
Si(R.sup.1).sub.a(R.sup.2).sub.4-a  (1) ##STR00001##

A process for synthesis of an organosilicon compound is provided herein. Also, novel organosilicon compounds prepared by the present process is provided herein. The process comprises the reaction of a halosilane with an organofunctional alkyl halide in the presence of a metal catalyst, a promoter, and an optional co-catalyst. The process provides an efficient synthetic route to produce organosilicon compounds. The process also allows synthesis of organosilicon compounds with a plurality of different functional groups.

Disclosed is an organic compound contributing to improving the substantial light efficiency and field of view of an organic electroluminescent device. The organic electroluminescent device contains a first electrode; a second electrode; one or more organic material layers disposed between the first electrode and the second electrode; and a capping layer, wherein the organic material layers or capping layer contains an organic compound of chemical formula 1:

##STR00001##

A photon upconversion composition containing a naphthalene compound substituted with a substituent containing at least one selected from the group consisting of an alkynyl group, a substituted silyl group, a benzene ring, an heteroaromatic ring, a cyano group and a halogen atom can efficiently convert an excitation light into a UV light at a low excitation light intensity.

A method for producing an alkenyl or alkynyl-containing organosilicon precursor composition, the method comprising the steps of distilling at least once a composition comprising an alkenyl or alkynyl-containing organosilicon compound having the formula R.sub.nSiR.sup.1.sub.4−n wherein R is selected a linear or branched C.sub.2 to C.sub.6 alkenyl group, a linear or branched C.sub.2 to C.sub.6 alkynyl group; R.sup.1 is selected from hydrogen, a linear or branched C.sub.1 to C.sub.10 alkyl group, and a C.sub.3 to C.sub.10 cyclic alkyl group; and n is a number selected from 1 to 4, wherein a distilled alkenyl or alkynyl-containing organosilicon precursor composition is produced after distilling; and packaging the distilled alkenyl or alkynyl-containing organosilicon precursor composition in a container, wherein the container permits transmission into the container of no more than 10% of ultraviolet and visible light having a wavelength of between 290 nm to 450 nm.

A mixture M includes at least one compound A, selected from (a1) a compound of the general formula (I) and/or (a2) a compound of the general formula (I′), at least one compound B, selected from (b1) a compound of the general formula (II) and/or (b2) a compound of the general formula (II′) and/or (b3) a compound of the general formula (II″), and at least one compound C, selected from cationic germanium(II) compounds of the general formula (III).

The present disclosure relates to a novel compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device. ##STR00001##