Cyclic phosphonite stabilized cellulose ester compositions

Details Cyclic phosphonite stabilized cellulose ester compositions Cyclic phosphonite stabilized cellulose ester compositions

1977-09-02

1979-01-30

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458R, 264177F, 264200, C08L 110, C08L 112, C08L 114

Patent

active

041372018

ABSTRACT:
This invention is directed to a new thermal stabilizer system for cellulose esters and their commercially useful formulated compositions which can be molded, shaped and otherwise processed in a thermoplastic condition at elevated temperatures to provide products having (1) better molecular weight retention and (2) less discoloration after thermal processing when compared to similar cellulose ester compositions containing prior art stabilizers.

REFERENCES:
patent: 3014956 (1961-12-01), Birum
patent: 3702878 (1972-11-01), Saito

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