Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1987-11-04
1988-12-06
Hoke, Veronica P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
604332, 604335, 604407, 604408, C08K 511
Patent
active
047897007
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.
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Frappier Edward P.
Hull Ezekiel H.
Hoke Veronica P.
Morflex Chemical Company, Inc.
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