Disclosed herein are a thermoplastic copolymer, which is a polymer of a monomer mixture including: a phosphorus (meth)acrylic monomer represented by Formula 1; an aromatic vinyl monomer; and a vinyl cyanide monomer. The thermoplastic copolymer can exhibit excellent flame retardancy with minimal or no deterioration in heat resistance, and is eco-friendly. ##STR00001## wherein R.sub.1 is hydrogen or methyl; R.sub.2 is a substituted or unsubstituted C.sub.1 to C.sub.20 hydrocarbon group; R.sub.3 and R.sub.4 are each independently a substituted or unsubstituted C.sub.6 to C.sub.20 cyclic hydrocarbon group; m is an integer from 1 to 10; and n is an integer from 0 to 5.

Cheil Industries Inc.

Flame retardant thermoplastic copolymer, method for preparing the same, and molded article including the same

To suppress deterioration of mechanical properties of a foam, by using a polyol system solution stored. A polyol system solution is prepared by using a polyether polyol (A1) having a hydroxy value of from 5 to 45 mgKOH/g and an average number of hydroxy groups of from 2 to 8, obtainable by subjecting an alkylene oxide to ring-opening addition polymerization to an initiator, in the presence of a double metal cyanide complex catalyst, to obtain an intermediate polyol; and subjecting ethylene oxide to a ring-opening addition polymerization in an amount of from 1 to 23 mol per 1 mol of the initiator to the intermediate polyol, in the presence of an alkali metal hydroxide as a polymerization catalyst, and a flexible polyurethane foam is produced by using the polyol system solution.

cyanide/атрофия

Flame retardant thermoplastic copolymer, method for preparing the same, and molded article including the same

Process for producing polyether polyol, process for producing flexible polyurethane foam, and seat

Самая полная база данных о лекарственных травах, подтвержденная наукой