Process for preparing extended chain polyesters and block or graft copolyesters
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United States of America Patent
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-
Feb 4, 1986
Grant Date -
N/A
app pub date -
Feb 25, 1985
filing date -
Feb 25, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for preparing extended chain polyesters, and block or graft polyester or copolyesters by forming an intimate mixture of one or more polyesters and an effective amount of one or more phosphite compounds, and thereafter heating the intimate mixture at a temperature and for a time sufficient to form the desired amount of the desired polyester or co-polyester.
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