C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/3026, 400/63
C08K 5/53 (2006.01) C08K 5/523 (2006.01) C08K 5/5397 (2006.01) C08L 25/04 (2006.01) C08L 25/06 (2006.01)
Patent
CA 1198541
Abstract: FLAME RETARDANT POLYPHENYLENE ETHER-STYRENE THERMO- PLASTIC RESIN COMPOSITIONS A flame retardant polyphenylene ether-styrene resin composition having a UL-94 rating of V-l or better, a heat distortion temperature greater than 92°C and a melt viscosity at 260°C of less than 200 pascal second is obtained by incorporating with said polyphenylene ether-styrene resin composition from about 4 to about 7 parts per hundred of a triaryl phos- phate ester and from about 0.5 to about 3 parts per hundred of a 3-hydroxyalkyl phosphine oxide having the formula: Image wherein R1 may be the same or a different radical selected from the group consisting of hydrogen and the methyl radicals, R2 is a radical of 4 to 8 carbon atoms and n is either zero or one.
416178
Braksmayer Diza P.
Lovenguth Ronald F.
Fmc Corporation
Osler Hoskin & Harcourt Llp
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