Patents by Inventor James M. Burlitch

James M. Burlitch 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).

  • Use of hydrogen peroxide in preparing magnesium containing silicate sols for coating and fiber formation
    Patent number: 5153031
    Abstract: Stable magnesium containing silicate sols are produced by preparing a solution of silicon alkoxide and of magnesium alkoxide and optionally of aluminum alkoxide in solvent wherein the atomic ratio of Mg to Si ranges from 0.3:1 to 4:1 and simultaneously reacting said alkoxides with peroxy compound or peroxy compound and water. Water presence, rate of addition of reactant, quantity of solvent and temperature of reaction are controlled to negate formation of precipitate. For a magnesium silicate sol, preferably the silicon alkoxide is tetraethylorthosilicate, the magnesium alkoxide is magnesium methoxide, the solvent is methanol and 30% H.sub.2 O.sub.2 is used as a reactant. For a magnesium aluminosilicate sol, preferably the silicon alkoxide is tetraethylorthosilicate, the magnesium alkoxide is selected from the group consisting of magnesium-s-butoxide and magnesium-2-(2'-methoxyethoxy)ethoxide, the aluminum alkoxide is aluminum isopropoxide, the solvent is sec-butanol and 2-(2'-methoxyethoxy)ethanol and 30% H.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: October 6, 1992
    Assignee: Cornell Research Foundation, Inc.
    Inventor: James M. Burlitch
  • Use of hydrogen peroxide in preparing magnesium containing silicate sols for coating and fiber formation
    Patent number: 5019293
    Abstract: Stable magnesium containing silicate sols are produced by preparing a solution of silicon alkoxide and of magnesium alkoxide and optionally of aluminum alkoxide in solvent wherein the atomic ratio of Mg to Si ranges from 0.3:1 to 4:1 and simultaneously reacting said alkoxides with peroxy compound or peroxy compound and water. Water presence, rate of addition of reactant, quantity of solvent and temperature of reaction are controlled to negate formation of precipitate. For a magnesium silicate sol, preferably the silicon alkoxide is tetraethylorthosilicate, the magnesium alkoxide is magnesium methoxide, the solvent is methanol and 30% H.sub.2 O.sub.2 is used as a reactant. For a magnesium aluminosilicate sol, preferably the silicon alkoxide is tetraethylorthosilicate, the magnesium alkoxide is selected from the group consisting of magnesium-s-butoxide and magnesium-2-(2'-methoxyethoxy)ethoxide, the aluminum alkoxide is aluminum isopropoxide, the solvent is sec-butanol and 2-(2'-methoxyethoxy)ethanol and 30% H.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: May 28, 1991
    Assignee: Cornell Research Foundation, Inc.
    Inventor: James M. Burlitch