Patent ID: 6800678
Filing Date: 2004-10-05
Classification: C07D,C08K,C09K

Abstract:
A flame retardant polymer composition which comprises(a) a polymer substrate, and (b) an effective flame retarding amount of a synergistic mixture of (i) a hindered amine and (ii) a brominated andlor phosphorus containing flame retardant; where the hindered amine is a compound of the formula (IlIb) wherethe index n ranges from 1to 15; the radicals A are independently of one another â€”OR13, â€”N(R14)(R15) or a group of the formula (IIId); X is â€”Oâ€” or >Nâ€”R16; R12 is C2-C12alkylene, C4-C12alkenylene, C5-C7cycloalkylene, C5-C7cycloalkylene-di(C1-C4alkylene), C1-C4alkylenedi(C5-C7cycloalkylene), phenylenedi(C1-C4alkylene) or C4-C12alkylene interrupted by 1,4-piperazinediyl, â€”Oâ€” or >Nâ€”X1 with X1 being C1-C12acyl or (C1-C12alkoxy)carbonyl or having one of the definitions of R14 given below except hydrogen; or R12 is a group of the formula (Ibâ€²) or (Icâ€²); X2 being C1-C18alkyl, C5-C12cycloalkyl which is unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl; phenyl which is unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl or C1-C4alkoxy; C7-C9phenylalkyl which is unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl; and the radicals X3 being independently of one another C2-C12alkylene; R13, R14 and R16, which are identical or different, are hydrogen, C1-C18alkyl, C5-C12cycloalkyl which is unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl; C3-C18alkenyl, phenyl which is unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl or C1-C4alkoxy; C7-C9phenylalkyl which is unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl; tetrahydrofurfuryl or C2-C4alkyl which is substituted in the 2, 3 or 4 position by â€”OH, C1-C8alkoxy, di(C1-C4alkyl)amino or a group of the formula (Ieâ€²); with Y being â€”Oâ€” , â€”CH2â€”, â€”CH2CH2â€” or >Nâ€”CH3, or â€”N(R14)(R15) is additionally a group of the formula (Ieâ€²); R16 is hydrogen, C1-C18alkyl, C3-C18alkenyl, C5-C12cycloalkyl which is unsubstituted or substituted by 1, 2 or 3 C1-C4alkyl; C7-C9phenylalkyl which is unsubstituted or substituted on the phenyl by 1, 2 or 3 C1-C4alkyl; tetrahydrofurfuryl, a group of the formula (IIIf) or C2-C4alkyl which is substituted in the 2, 3 or 4 position by â€”OH, C1-C8alkoxy, di(C1-C4alkyl)amino or a group of the formula (Ieâ€²); R11 has one of the definitions given for R16; and the radicals B have independently of one another one of the definitions given for A; with the proviso that when the polymer substrate is polypropylene, the flame retardant is not a halogenated hydrocarbyl phosphate or phosphonate.