Back to results
US 2005/0148250 A1Published application
Reinforcement composite for a bituminous roofing membrane and method of making the composite
OwnerTerence O'Connor, Donald Kirkinventors
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerTerence O'Connor, Donald Kirkinventors
Estimating the term…
A roofing membrane (10) is formed by impregnating and coating a composite material (11) with a bituminous material. The composite material (11) is formed with a first layer (12) made of a non-woven polyester mat. A second layer (13) is positioned adjacent to the first layer (12) and is formed as a non-woven fiberglass scrim. An optional third layer (14) is positioned adjacent to the second layer (13) and is formed of a non-woven polyester scrim. A fourth layer (15) is positioned adjacent to the third layer (14) and is made of a non-woven polyester mat. A fifth layer (16) is positioned adjacent to the fourth layer (15) and is also a non-woven polyester mat. The layers (12, 13, 14, 15, 16) may be attached by needle punching to form the composite material (11).
A composite material for reinforcing roofing membranes comprising a first layer in the form of a mat, a second layer in the form of a non-woven scrim made of a fiberglass material, an optional third layer in the form of a non-woven scrim made of a polyester material, a fourth layer in the form of a mat, and a fifth layer in the form of a mat.
A method of making a composite material for reinforcing roofing membranes comprising the steps of forming a first mat layer, forming a first scrim layer, positioning the first scrim layer adjacent to the first mat layer, forming a second scrim layer, positioning the second scrim layer adjacent to the first scrim layer, forming a second mat layer, positioning the second mat layer adjacent to the second scrim layer, forming a third mat layer, positioning the third mat layer adjacent to the second mat layer, and mechanically attaching the layers together to form the composite material without the use of an adhesive.
The method of claim lo wherein said mechanically fastening comprises carding and needle punching.
A roofing membrane comprising a bituminous impregnated single laminate composite material, said composite material including a first layer in the form of a mat, a second layer in the form of a non-woven scrim made of a fiberglass material, an optional third layer in the form of a non-woven scrim made of a polyester material, a fourth layer in the form of a mat, and a fifth layer in the form of a mat.
Dependencies are inferred from the claim text.