Patents by Inventor Keith Biesiada

Keith Biesiada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Propanediol-derived polyesters as PVC plasticizers
    Patent number: 6111004
    Abstract: Disclosed are polymeric plasticizers of the formula (1)R.sup.a --C(O)--(O--G--OC(O)--(CH.sub.2).sub.4-12 --C(O)).sub.1-12 --O--G--O--C(O)--R.sup.b (1)wherein R.sup.a and R.sup.b are each C.sub.2 -C.sub.22 straight saturated alkyl groups, and wherein each G group is 1,2-propanediyl or 2-methylpropane-1,3-diyl such that both types of G groups are present in a ratio to each other of 3:1 to 1:3.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: August 29, 2000
    Assignee: Velsicol Chemical Corporation
    Inventors: Keith Biesiada, Michael Fisch, Richard Peveler