Patents Represented by Attorney James C. Logoansini

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  • Acrylic polymerization inhibition
    Patent number: 4113574
    Abstract: The prior art discloses a number of polymerization inhibitors for acrylic acid, acrylates and derivatives thereof, but such polymerization inhibitors have low vapor pressures. Consequently, when acrylic acid is vaporized, it tends to polymerize on cooling surfaces causing undesirable deposits on storage vessels and the like. However, when a polymerization inhibiting amount of 2,4-pentanedione is added to the monomer, the polymerization of acrylic acid on cooling surfaces is inhibited.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: September 12, 1978
    Assignee: Monsanto Company
    Inventors: Ignatius Schumacher, James E. White