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US 3,940,370 AGranted
Method of making polyureas
AssigneeThe United States of America as represented by the Secretary of the Army
InventorAnthony L. DiSalvo
Life of this patent
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Abstract
A method of making a polyurea by reacting an aliphatic diamine with trimelisocyanatosilane under pressure in a closed vessel at a temperature sufficiently high and for a time sufficiently long to produce a substantial quantity of the polyurea.
Claims5
Method of making a polyurea which comprises reacting an aliphatic diamine with trimethylisocyanatosilane in a closed, pressurized vessel at a temperature sufficiently high and for a time sufficiently long to produce a substantial quantity of said polyurea and separating said polyurea from by-products of the reaction.
Dependencies are inferred from the claim text.