Patent ID: 6232408
Filing Date: 2001-05-15
Classification: C08F

Abstract:
A brominated styrenic polymer that has an ionic bromine content of 2000 ppm or less, and at least two of the following additional characteristics:a) a TGA temperature for 1% weight loss which is 340.degree. C. or higher and a chlorine content, if any, of less than about 700 ppm Cl,b) an actual M.sub.w which is within about 20% of its calculated theoretical M.sub.w, the theoretical M.sub.w being based upon the actual bromine content of the brominated styrenic polymer and the M.sub.w of the styrenic polymer reactant used to produce the brominated styrenic polymer,c) essentially no content of impurities selected from the group consisting of bromodichloroethane, dibromochloroethane, dibromodichloroethane, tribromochloroethane, and ethylene dichloride.