Patents by Inventor Line L. Fiquet

Line L. Fiquet 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).

  • Urethane elastomers prepared using a prepolymer prepared from a polyester which reacts with a chain-extending agent and/or a saturated polyester resin in which at least one of the polyesters is prepared from a dimer and/or trimer fatty acid
    Patent number: 4602079
    Abstract: The hydrolysis resistance of a urethane elastomer prepared by reacting a hydroxy compound with a prepolymer in a weight ratio of between 5/95 and 95/5 is improved; the hydroxy compound consists of at least one saturated polyester resin and/or at least one chain-extending agent, if necessary in the presence of the usual additives, each resin and each chain-extending agent having at least two OH end groups; the prepolymer is prepared by reacting at least one saturated polyester resin having at least two OH end groups and at least one organic isocyanate of functionality .gtoreq.2, in molar excess. To this end, to prepare at least one polyester resin, a fraction of the polyacid(s) used is replaced by at least one polymerized fatty acid, consisting substantially of a dimer and/or a trimer, the initial total content of polymerized fatty acid(s) being between 1 and 35% by weight, referred to the finished product.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: July 22, 1986
    Assignee: Witco Chemical Corporation
    Inventors: Gerard Vinches, Line L. Fiquet