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US 12,031,080 B2Granted
Flame- and smoke-retardant adhesive packages and insulation products
AssigneeWinona Building Products, LLC
InventorsJohn F. Bergin, James Herbert Stoken
Life of this patent
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AssigneeWinona Building Products, LLC
InventorsJohn F. Bergin, James Herbert Stoken
Estimating the term…
An antimony-free adhesive package useful for making an insulation facing material includes a halogenated latex adhesive, a flame/smoke suppressant such as aluminum trihydrate, an intumescent such as aluminum polyphosphate, melamine powder, a melamine cyanurate, a mold and mildew inhibitor, an optional dispersant, an optional water holding agent, and optionally between 3% and 10% of a zinc molybdate/magnesium silicate complex and between 3% and 10% of a zinc phosphate/zinc oxide complex. Insulation facing material made with the adhesive package has a “flame spread” value that does not exceed 25, and a “smoke developed” value that does not exceed 50, and meets the applicable standards for operating temperature, anti-corrosiveness, corrosion, puncture resistance, water vapor transmission, water vapor sorption, shrinkage, microbial growth resistance, and water immersion bond integrity. The facing stock may be used to face insulation products such as rolls, batts, boards or molds of fiberglass or mineral wool insulation.
An insulation facing material comprising a multiplicity of facing material layers laminated together using an antimony-free adhesive package comprising between 3% and 10% by weight of a zinc molybdate/magnesium silicate complex, and between 3% and 10% by weight of a zinc phosphate/zinc oxide complex;
An adhesive package comprising a zinc molybdate/magnesium silicate complex, a zinc phosphate/zinc oxide complex, a halogenated latex adhesive, aluminum trihydrate, ammonium polyphosphate, a melamine powder, a melamine cyanurate, and a mold and mildew inhibitor, wherein the zinc molybdate/magnesium silicate complex is provided in an amount ranging from about 3% to about 10% by weight, the zinc phosphate/zinc oxide complex is provided in an amount ranging from about 3% to about 10% by weight, the halogenated latex adhesive is included in an amount of between 13% and 22% by weight, the aluminum trihydrate is included in an amount of between 22% and 50% by weight, the ammonium polyphosphate is included in an amount of between 2% and 8% by weight, the melamine powder is included in an amount of between 10% and 25% by weight, the melamine cyanurate is included in an amount of between 10% and 25% by weight, and the mold and mildew inhibitor is included in an amount of between 0.5% and 3% by weight.
An adhesive package comprising a zinc molybdate/magnesium silicate complex, a zinc phosphate/zinc oxide complex, a halogenated latex adhesive, aluminum trihydrate, a melamine powder, a melamine cyanurate, and a mold and mildew inhibitor, wherein the zinc molybdate/magnesium silicate complex is provided in an amount ranging from about 3% to about 10% by weight, the zinc phosphate/zinc oxide complex is provided in an amount ranging from about 3% to about 10% by weight, the halogenated latex adhesive is included in an amount of between 13% and 22% by weight, the aluminum trihydrate is included in an amount of between 22% and 50% by weight, the melamine powder is included in an amount of between 10% and 25% by weight, the melamine cyanurate is included in an amount of between 10% and 25% by weight, and the mold and mildew inhibitor is included in an amount of between 0.5% and 3% by weight.
Dependencies are inferred from the claim text.