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  • Compressible polyurethane compositions having minimal tack and articles therefrom
    Patent number: 6084027
    Abstract: A polyurethane composition is provided for the formulation of a hand exercise device having a variety of configurations. The compositions comprise 140 parts by weight of a diol; from about 50 to 70 parts by weight of a diisocyanate compound, the diols and diisocyanate compounds being selected from the group consisting of reactants capable of forming polyurethanes; from about one to 30 percent by weight of a plasticizer, based upon the weight of the polyurethane composition; and from 0 to about 100 parts by weight of a mineral filler, based upon 100 parts by weight of the polyurethane composition.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: July 4, 2000
    Assignee: The Hygenic Corporation
    Inventor: John Riazi
  • Compressible polyurethane compositions having minimal tack and articles therefrom
    Patent number: 5798411
    Abstract: A polyurethane composition is provided for the formulation of a hand exercise device having a variety of configurations. The compositions comprise 140 parts by weight of a diol; from about 50 to 70 parts by weight of a diisocyanate compound, the diols and diisocyanate compounds being selected from the group consisting of reactants capable of forming polyurethanes; from about one to 30 percent by weight of a plasticizer, based upon the weight of the polyurethane composition; and from 0 to about 100 parts by weight of a mineral filler, based upon 100 parts by weight of the polyurethane composition.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: August 25, 1998
    Assignee: The Hygenic Corporation
    Inventor: John Riazi