초록

An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.

대표청구항 ▼

An adhesive composition, for retaining adjacent portions of asphalt roofing sheets against windlift at temperatures of about 50°F. and greater, comprising a blend of asphalt, an elastomer containing about 80% triblock styrene-butadiene-styrene copolymer and about 20% diblock styrene-butadiene copoly

An adhesive composition, for retaining adjacent portions of asphalt roofing sheets against windlift at temperatures of about 50°F. and greater, comprising a blend of asphalt, an elastomer containing about 80% triblock styrene-butadiene-styrene copolymer and about 20% diblock styrene-butadiene copolymer, a tackifying resin and a petroleum oil, wherein the blend contains about 25-80% asphalt, a 3-18% elastomer, 5-25% tackifying resin and 10-50% petroleum oil; wherein the asphalt is characterized by a kinematic viscosity in the range of from about 500 poise±100 to about 250±50 poise at 140°F. (60°C.), a minimum viscosity of from about 110 cs (centistokes) to about 80 centistokes at 275°F. (135°C.), a penetration (ASTM D5 73) of from about 120 to about 300 dmm (decimillimeters) at 77°F. (25°C.), and a ring and ball softening point from about 90°F. to about 130°F.; and wherein the petroleum oil is a resinous by-product of a lubricating oil tower used in the crude oil refining process.