Claims
- 1. A waterproofing membrane comprising:
a waterproof synthetic resin film presenting opposed first and second surfaces; and an inner bitumen adhesive supported on the first surface of the film, the adhesive possessing a coating temperature at which the adhesive can be applied to the film as a viscous liquid, the synthetic resin film possessing a transition temperature above which the dimensional stability of the film and the ability of the film to support a continuous load is substantially reduced relative to the dimensional stability and ability of the film to support a continuous load at room temperature, the transition temperature being higher than the coating temperature of the adhesive.
- 2. A waterproofing membrane as recited in claim 1, wherein the waterproof film has a thickness of less than 3 mils.
- 3. A waterproof membrane as recited in claim 1, wherein the film and inner bitumen adhesive each present a pair of laterally spaced side edges, wherein the side edges of the film are coextensive with the side edges of the inner bitumen adhesive.
- 4. A waterproof membrane as recited in claim 1, wherein the inner bitumen adhesive includes an exposed inner surface opposite the film, the membrane further comprising a protective release liner removably adhered to the exposed surface of the inner bitumen adhesive.
- 5. A waterproof membrane as recited in claim 1, wherein the inner bitumen adhesive is a polymer-modified asphalt.
- 6. A waterproof membrane as recited in claim 1, wherein the transition temperature of the film is greater than about 250° F.
- 7. A waterproof membrane as recited in claim 1, wherein the film comprises a water permeability less than approximately 1×10−2 perm.
- 8. A waterproof membrane as recited in claim 1, wherein the film is formed of polyester.
- 9. A waterproof membrane as recited in claim 1, wherein the film is formed of a material selected from the group consisting of polyester, polypropylene, polybutylene, polyimide, polycarbonate, polyamide, polyethylene, polystyrene, polyvinylchloride, flouroplastics, sulfone polymers, and polyvinylidene chloride.
- 10. A waterproof membrane as recited in claim 1, further comprising an outer bitumen adhesive supported on the second surface of the film, the outer bitumen adhesive possessing a coating temperature at which the adhesive can be applied to the film as a viscous liquid, the transition temperature of the film being greater than the coating temperatures of both the inner and outer bitumen adhesives.
- 11. A waterproof membrane as recited in claim 10, wherein the outer bitumen adhesive presents a plurality of marginal edges, the membrane further comprising a release liner covering at least one of the marginal edges of the outer bitumen adhesive.
- 12. A waterproof membrane as recited in claim 10, wherein the outer bitumen adhesive includes an exposed outer surface opposite the film, the membrane further comprising a nonadhesive material covering the exposed outer surface.
- 13. A waterproof membrane as recited in claim 11, wherein the outer bitumen adhesive includes an exposed outer surface opposite the film, the membrane further comprising a nonadhesive material covering the exposed outer surface that is not covered by the release liner.
- 14. A waterproofing membrane comprising:
a waterproof synthetic resin film having a thickness of less than about 3 mils, the film presenting opposed first and second surfaces and laterally spaced side edges; a bitumen adhesive supported on the first surface of the film and presenting an exposed surface and laterally spaced side edges that are coextensive with the side edges of the film; and a removable release liner covering the exposed surface of the adhesive.
- 15. A method of manufacturing a waterproofing membrane comprising the steps of:
heating an inner bitumen adhesive to a coating temperature; and applying the inner bitumen adhesive to a first surface of a web of waterproof synthetic resin film, the film possessing a transition temperature above which the dimensional stability of the film and the ability of the film to support a continuous load is substantially reduced relative to the dimensional stability and ability of the film to support a continuous load at room temperature, the transition temperature being higher than the coating temperature of the adhesive so that the adhesive can be applied as a viscous liquid to the first surface of the film during manufacture without irreversibly deforming the film.
- 16. A method as recited in claim 15, wherein the coating temperature is greater than about 250° F.
- 17. A method as recited in claim 15, wherein the coating temperature is between about 325-390° F.
- 18. A method as recited in claim 15, further comprising the steps of heating an outer bitumen adhesive to a coating temperature, and applying the outer bitumen adhesive to the second surface of the web of waterproof synthetic resin film, the transition temperature of the film being higher than the coating temperature of the outer bitumen adhesive so that the inner and outer bitumen adhesives can be applied as viscous liquids to the first and second surfaces of the film during manufacture without irreversibly deforming the film.
- 19. A method as recited in claim 18, further comprising the step of covering at least a portion of the outer exposed surface of the outer bitumen with a non-adhesive material.
- 20. A method as recited in claim 18, further comprising the step of covering at least one marginal edge of the exposed surface of the outer bitumen adhesive with a removable release liner.
- 21. A method as recited in claim 20, wherein the portion of the exposed surface of the outer bitumen adhesive not covered by the removable release liner is covered with a non-adhesive material.
- 22. A waterproofing membrane comprising:
a waterproof synthetic film presenting opposed first and second surfaces, a bitumen adhesive supported on the first surface of the film and having an opposite bitumen adhesive surface therefrom, the adhesive possessing a coating temperature at which the adhesive can be applied to the film as a viscous liquid;
a release liner disposed on the opposite surface of the adhesive; and the synthetic film possessing a transition temperature above which the dimensional stability of the film and the ability of the film to support a continuous load is substantially reduced relative to the dimensional stability and ability of the film to support a continuous load at room temperature, the transition temperature being higher than the coating temperature of the adhesive.
- 23. A waterproofing membrane as recited in claim 22, wherein the waterproof film has a thickness of less than 3 mils.
- 24. A waterproof membrane as recited in claim 22, wherein the bitumen adhesive is a polymer-modified asphalt.
- 25. A waterproof membrane as recited in claim 22, wherein the transition temperature of the film is greater than about 250° F.
- 26. A waterproof membrane as recited in claim 22, wherein the film comprises a water permeability less than approximately 1×10−2 perm.
- 27. A waterproof membrane as recited in claim 22, wherein the film is formed of polyester.
- 28. A waterproof membrane as recited in claim 22, wherein the film is formed of a material selected from the group consisting of polyester, polypropylene, polybutylene, polyimide, polycarbonate, polyamide, polyethylene, polystyrene, polyvinylchloride, flouroplastics, sulfone polymers, and polyvinylidene chloride.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This is a continuation-in-part application claiming the benefit of U.S. patent application Ser. No. 09/487,091, filed Jan. 19, 2000, a divisional application claiming the benefit of U.S. patent application Ser. No. 09/160,760, filed Sep. 25, 1998.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09160760 |
Sep 1998 |
US |
Child |
09487091 |
Jan 2000 |
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09487091 |
Jan 2000 |
US |
Child |
09879315 |
Jun 2001 |
US |