Plastic compositions
AssigneeVelsicol Chemical Corporation
InventorArnold L. Anderson
Life of this patent
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Abstract
Plastic compositions containing a three component system consisting of (1) a polysulfone, (2) certain bis-phenoxy compounds having the formula: ##STR1## WHEREIN Z is bromine, m and m' are each integers having a value of 1-5 with the proviso that the total bromine atom content is from 6 to 10, and "T" is a straight or branched chain carbon group having 1 to 4 carbon atoms, and (3) an enhancing agent, hereinafter defined.
Claims26
A plastic composition comprising a three component system consisting of (1) a polysulfone, (2) a bis-phenoxy compound, which functions as a flame retardant for said composition, having the formula ##STR8## wherein (a) Z is bromine;
- (b) m and m' are independent and are integers having a value of from 1 to 5 with the proviso that the bromine atom content is from 6 to 10 bromine atoms;
- and (c) T is a straight or branched chain carbon group having from one to four carbon atoms, and (3) a flame retardant enhancing agent.
A flame retarded, shaped plastic composition comprising a three component system which consists of (a) a polysulfone, (b) a bis-phenoxy compound selected from the group consisting of (i) 1,2-bis(2,4,6-tribromophenoxy)ethane, (ii) 1,3,-bis(2,4,6-tribromophenoxy)propane and (iii) 1,2-bis(2,3,4,5,6-pentabromophenoxy)ethane and (c) an enhancing agent selected from the group consisting of oxides of antimony, arsenic and bismuth;
- with the proviso that said plastic composition is further characterized by having a flammability rating of SE-O (V-O) as determined by the UL 94 procedure described in the specification.
Dependencies are inferred from the claim text.