Linear polyesters containing phosphonate heat stabilizers

Details Linear polyesters containing phosphonate heat stabilizers Linear polyesters containing phosphonate heat stabilizers

1978-03-01

1981-03-03

Taylor, Hosea E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260941, 528287, C08K 553

Patent

active

042540186

ABSTRACT:
Polyesters containing a freely or chemically incorporated heat stabilizing agent which is a phosphonate of the chemical formula: ##STR1## in which R.sub.1 and R.sub.2 may be identical or different and describe an alkyl radical with 1 to 4 carbon atoms, and in which X represents ##STR2## in amounts representing 10 to 400 ppm phosphorus.

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