Thermo-oxidative stable copolyesters

Details Thermo-oxidative stable copolyesters Thermo-oxidative stable copolyesters

1974-12-20

1976-04-20

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4585T, 260 4595H, C08G 6318

Patent

active

039519155

ABSTRACT:
High molecular weight, linear copolyester compositions having improved thermo-oxidative stability comprising the condensation product of (A) dicarboxylic acids or the C.sub.1 to C.sub.4 lower alkyl esters thereof, (B) glycols and (C) copolymerizable hindered phenolic comonomers wherein repeat units of said hindered phenolic comonomers are present in the copolyesters in an amount ranging from about 0.1 to 10.0 mol percent based on the dicarboxylic acids or the C.sub.1 to C.sub.4 lower alkyl esters thereof.

REFERENCES:
patent: 3398121 (1968-08-01), Oxenrider et al.
patent: 3669927 (1972-06-01), Terasaki et al.

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