Patent ID: 6184312
Filing Date: 2001-02-06
Classification: C08K,C08L

Abstract:
A flame retardant resin composition comprising(A) 100 parts by weight of a synthetic resin containing an aromatic ring in a molecule, and(B) 0.1 to 10 parts by weight of an organosiloxane containing phenyl and alkoxy radicals, represented by the following average compositional formula (1):R.sup.1.sub.m R.sup.2.sub.n Si(OR.sup.3).sub.p (OH).sub.q O.sub.(4-m-n-p-q)/2 (1)wherein R.sup.1 is phenyl, R.sup.2 is a monovalent hydrocarbon radical of 1 to 6 carbon atoms excluding phenyl, R.sup.3 is a monovalent hydrocarbon radical of 1 to 4 carbon atoms, and letters m, n, p and q are numbers satisfying 0.5.ltoreq.m.ltoreq.2.0, 0.ltoreq.n.ltoreq.0.9, 0.42.ltoreq.p.ltoreq.2.5, 0.ltoreq.q.ltoreq.0.35, and 0.92.ltoreq.m+n+p+q.ltoreq.2.8, said organosiloxane (B) containing at least 50 mol % of units of formula (2):R.sup.4 --SiX.sub.3 (2)wherein R.sup.4 is as defined for R.sup.1 or R.sup.2, X is --OH, --OR.sup.3 or siloxane residue, at least one of the three X radicals attached to one silicon atom is a siloxane residue, said siloxane residue is represented by O.sub.1/2, O.sub.2/2, and O.sub.3/2 when one, two and three of the X radicals are siloxane residues, respectively and these oxygen atoms bond with other silicon atoms to form siloxane bonds.