Abstract: The present invention discloses an acidic fluorine-containing hybrid having a uniform distribution of an organic and an inorganic components prepared by a sol-gel process. The organic component is a fluorine-containing poly(siloxane amideimide) having a good processing ability, gas permeability, mechanical properties, and chemical stability. The inorganic component is silica having good heat resistance and moisture resistance. The hybrid has excellent properties, such as a good film formation property, a high gas selectivity, a low dielectric constant, a good resistance to scraping, and a good transparency, etc., and can be used in making industrial products, such as gas detection films, sensors, encapsulation material, photoelectrical communication material, and biomedical material, etc.

Abstract: The present invention discloses an acidic fluorine-containing hybrid having a uniform distribution of an organic and an inorganic components prepared by a sol-gel process. The organic component is a fluorine-containing poly(siloxane amideimide) having a good processing ability, gas permeability, mechanical properties, and chemical stability. The inorganic component is silica having good heat resistance and moisture resistance. The hybrid has excellent properties, such as a good film formation property, a high gas selectivity, a low dielectric constant, a good resistance to scraping, and a good transparency, etc., and can be used in making industrial products, such as gas detection films, sensors, encapsulation material, photoelectrical communication material, and biomedical material, etc.

Abstract: A series of novel phosphorus-containing compounds suitable for use as a flame retardant having the following formula are disclosed: wherein R1-R8 independently are H or C1-C4 alkyl; Y is —OH or wherein Q is H, —NO2, —NH2, —OH, —CH3, —CHO, —COOH, A is —O—, —, —CH2—, or —C(CH3)2—; R9 and R10 independently are H, or C1-C4 alkyl.

Abstract: The present invention provides a process for preparing a mixture of amino-containing phosphazenes having the following general formula (I) by reacting a (NPCl2)n phosphazene mixture with NH3 and HOR in the presence of a tertiary amine catalyst: NnPn(NH2)x(OR)2n−x  (l) wherein n≧3, 1≦x<2n, and R is phenyl or C3-C6 alkyl. In addition to simultaneously carrying out amination and esterification, the process of the present invention also simultaneously performs a regeneration of the catalyst. Furthermore, the invented process is a water-free process without the problem of a large quantity of waste water. Ammonium chloride, a by-product of the invented process, can be recovered in a subsequent process.

Abstract: The invention relates to a process for preparing bis(3-t-butyl-4-hydroxyphenyl-2,4-di-t-butylphenyl)resorcinol diphosphate, which has characteristics of high conversion and high selectivity, and which comprises of charging sequentially phenolic compounds, phosphoryl chloride, catalyst and organic base, heating the reaction mixture for carry out a three-stage esterification reaction and improving the purity of the product through molecular designing; dissolving the product in an organic solvent and removing residual hydrochloride salt with a small amount of ammonia gas, thereby achieving the object of purification without generation of waste water and waste product.