Patent ID: 7834071
Filing Date: 2010-11-16
Classification: C08K,C09K

Abstract:
1. A flame-retardant resin processed article, comprising a resin composition which comprises a flame retardant that comprises a cyclic phosphorus compound represented by the following general formula (I), a hydrophilic silica powder having an average particle diameter of 15 μm or less, and a resin, the resin composition being molded into a certain shape or formed into a coating film, wherein the total content of the cyclic phosphorus compound and the hydrophilic silica powder in the resin composition is from 10 to 45 mass %: where R 1 to R 3 each represent a group selected from a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cyclohexyl group, and a phenyl group; where X represents a group selected from a hydrogen atom, a —CH 2 —NHCONH 2 group, —CHR 4 R 5 , —OR 4 , and —NR 4 R 5 ; and where R 4 and R 5 each represent any one of a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 1 to 8 carbon atoms except one having a terminal unsaturated bond, and an aryl group having 12 or less carbon atoms in which part or all of hydrogen atoms bonded to the carbon atoms may be substituted by alkyl groups each having 7 or less carbon atoms and/or by hydroxyl groups said flame-retardant resin processed article being further characterized by one of the following limitations: the hydrophilic silica powder has an oil absorption of 50 ml/100 g or more in accordance with JIS K5101; the resin composition contains 5 mass % or more of the cyclic phosphorus compound and 2 mass % or more of the hydrophilic silica powder; the resin composition further contains a reactive organophosphorus flame retardant having a terminal unsaturated group; the resin composition further contains a crosslinking agent which is a polyfunctional monomer or oligomer having an unsaturated bond at a terminal end of main skeleton thereof; the flame-retardant resin processed article is one selected from the group consisting of a molded article, a coating film, and a sealing compound; or the flame-retardant resin processed article is one used as an electrical component or an electronic component.