21-11-2013 дата публикации
Номер: US20130307172A1
Принадлежит:
A method of converting asphaltic shingles to a formed product, comprising the steps of providing a charge of recovered asphaltic shingles, comminuting the charge into small particles, adding to the charge a quantity of hydrated aluminosilicate, heating the charge while simultaneously mixing the comminuted charge to a homogeneous state, placing the mixed charge into molds to form the product, applying pressure to the charge in the mold for a determinable dwell time, ejecting the product from the mold, and cooling the product. 1. A method of converting asphaltic shingles to a formed product , comprising the steps of ,providing a charge of recovered asphalt shingles,comminuting the charge into small particles,adding to the charge a quantity of hydrated aluminosilicate,heating the charge while simultaneously mixing the comminuted charge to a homogeneous state,placing the mixed charge into molds to form the product,applying pressure to the charge in the mold for a determinable dwell time,ejecting the product from the mold, andcooling the product.2. The method of where the step of providing a charge of recovered asphalt shingles includes separating hazardous materials from the charge.3. The method of where the step of providing a charge of recovered asphalt shingles further includes removal of aluminum claim 2 , steel claim 2 , plastic and debris from the charge.4. The method of where the step of comminuting the charge includes reducing the size of the particles to less than one half inch.5. The method of where the step of comminuting the charge further includes removing nails from the charge by magnetic means.6. The method of where the step of heating the charge is to a temperature of between 225 and 275 degrees F.7. The method of where the step of applying pressure to the charge in the mold includes pressure of at least 4 claim 6 ,000 pounds per square inch for a dwell time of at least three seconds.8. A method of converting asphaltic shingles claim 6 , comprising the ...
Подробнее