Flame-retardant polyvinyl chloride compositions
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United States of America Patent
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Issued Date -
Sep 15, 2005
app pub date -
Mar 21, 2005
filing date -
Dec 19, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Flame-retardant compositions of a polyvinyl chloride resin, a polyolefin, and a flame retardant are disclosed. The compositions are essentially free of plasticizers from the group consisting of: citrates; non-halogenated phthalates (e.g., di-2-ethyl-hexyl, di-n-octyl, dioctyl, diisooctyl, diisodecyl, dibutyl, dihexyl, or diheptylnonyl); bisphthalates; benzoates; trimellitates; pyromellitates; azelates; polymeric plasticizers based on adipic, azelaic, or sebacic acids and glycols such as ethylene, propylene, and butylene, with either alcohol or monobasic acid termination (e.g., benzoate diester of 2,2,4-trimethyl pentanediol or triethylene glycol di-2-ethylhexanoate); epoxies; esters of dibasic acids (e.g., aliphatic ester adipates such as dioctyl adipate, aliphatic ester sebacates such as dioctyl sebacate); alkyl sulfonate esters; aliphatic hydrocarbons; aromatic hydrocarbons; alkylated aromatic hydrocarbons; butyl phthalyl butyl glycollate; isobutyrate; dipentaerythritol esters; and combinations thereof. The compositions possess good flame retardancy, as well as good mechanical properties and good low temperature flexibility.
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