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US 7,205,374 B2Granted
Two-part polyurethane adhesive for bonding insulation boards to a roof deck
AssigneeBFS Diversified Products, LLC
InventorsJohn W. Fieldhouse, Joseph J. Kalwara, Edward G. Kane, John B. Letts
Life of this patent
Estimating the term…
Abstract
A method of preparing an adhesive, the method comprising combining an isocyanate, a polyhydroxyl phenol-containing compound, a polyol, and a trimerization catalyst.
Claims22
A method for preparing an adhesive, the method comprising:
- combining an isocyanate prepolymer with at least one trimerization catalyst including a potassium, sodium, or lithium p-nonylphenoxide, where said step of combining takes place at a temperature of from about 40° F. to about 100° F.
A method for preparing an adhesive, the method comprising:
- combining an isocyanate prepolymer, a mono-ol, and a trimerization catalyst including a potassium, sodium, or lithium p-nonylphenoxide, where said step of combining takes place at a temperature of from about 40° F. to about 100° F.
A method for preparing an adhesive, the method comprising:
- combining a compound bearing an isocyanate functionality with at least one trimerization catalyst including an alkali metal phenoxide, where said step of combining takes place at a temperature of less than 100° F., where the compound bearing an isocyanate functionality is contained within an A-side stream of reactants, where the catalyst is contained in a B-side stream of reactants, and where the B-side stream of reactants includes a solvent selected from the group consisting of acetone, toluene, and methyl ethyl ketone.
Dependencies are inferred from the claim text.