Citrate esters

Details Citrate esters Citrate esters

1989-06-15

1990-06-05

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

524309, 524310, 560185, 560204, 604332, C07C 69704

Patent

active

049315838

ABSTRACT:
Citrate esters are formed utilizing organic titanates as a catalyst allowing excess alcohol to be removed. Four citrate esters have been found which provide advantageous plasticizing properties to PVC compositions which include superior toxicity test results and superior soapy water extraction test results. The four citrate esters are: acetyltri-n-hexyl citrate, n-butyryltri-n-hexyl citrate, acetyltri-n-(hexyl/octyl/decyl) citrate, and acetyltri-n-(octyl/decyl) citrate. Articles formed from the PVC plasticized mixtures are extremely useful in the medical or health care field as they demonstrate a low order of toxicity.

REFERENCES:
patent: 3056818 (1962-10-01), Werber
patent: 4007218 (1977-02-01), Ghanayem et al.
Chemical Abstracts, vol. 65, No. 5, 7374c, Aug. 1966.
Citrate Ester Development Products (Apr. 1982).
Citrate Ester Development Products (Oct. 1982)
Citrate Ester Development Products (Dec. 1983).

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