Patents Assigned to Morflex, Inc.
  • Patent number: 5055609
    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 tests 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.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: October 8, 1991
    Assignee: Morflex, Inc.
    Inventors: Ezekiel H. Hull, Edward P. Frappier