CA2270684C - Roofing material with granular surface - Google Patents
Roofing material with granular surface Download PDFInfo
- Publication number
- CA2270684C CA2270684C CA 2270684 CA2270684A CA2270684C CA 2270684 C CA2270684 C CA 2270684C CA 2270684 CA2270684 CA 2270684 CA 2270684 A CA2270684 A CA 2270684A CA 2270684 C CA2270684 C CA 2270684C
- Authority
- CA
- Canada
- Prior art keywords
- roofing membrane
- membrane material
- layer
- rubberized asphalt
- layer comprises
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Laminated Bodies (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
A roofing membrane material is disclosed. The material is characterized in that it includes a rubberized asphalt layer and a polyethylene reinforcement layer having a polyurethane layer on its upper surface. The polyurethane layer includes embedded grit to provide a high friction surface offering good traction.
Claims (8)
1. A roofing membrane material which comprises:
a) a rubberized asphalt layer having an upper and lower surface;
b) a supporting layer disposed upon the upper surface of the rubberized asphalt layer; and c) a traction layer disposed upon the supporting layer wherein the traction layer comprises a film having embedded grit particles.
a) a rubberized asphalt layer having an upper and lower surface;
b) a supporting layer disposed upon the upper surface of the rubberized asphalt layer; and c) a traction layer disposed upon the supporting layer wherein the traction layer comprises a film having embedded grit particles.
2. The roofing membrane material of claim 1 wherein the supporting layer comprises a polyethylene film.
3. The roofing membrane material of claim 1 wherein the film is selected from the group consisting of polyester, polypropylene and polyurethane..
4. The roofing membrane material of claim 1 wherein the rubberized asphalt layer comprises, in combination:
a) a flux asphalt;
b) a filler material;
c) a styrene-butadiene-styrene copolymer; and d) a tackifying oil.
a) a flux asphalt;
b) a filler material;
c) a styrene-butadiene-styrene copolymer; and d) a tackifying oil.
5. The roofing membrane material of claim 4 wherein the filler material comprises powdered limestone.
6. The roofing membrane material of claim 1 which further comprises a release layer adjacent to the lower surface of the rubberized asphalt layer.
7. The roofing membrane material of claim 6 wherein the release layer comprises a polyethylene film having a silicone coating thereon.
8. The roofing membrane material of claim 6 wherein the release layer comprises a paper having a silicone coating thereon.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7288598A | 1998-05-05 | 1998-05-05 | |
| US09/072,885 | 1998-05-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2270684A1 CA2270684A1 (en) | 1999-11-05 |
| CA2270684C true CA2270684C (en) | 2007-10-23 |
Family
ID=29709277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2270684 Expired - Fee Related CA2270684C (en) | 1998-05-05 | 1999-05-04 | Roofing material with granular surface |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2270684C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7125601B1 (en) | 2000-10-18 | 2006-10-24 | 3M Innovative Properties Company | Integrated granule product |
-
1999
- 1999-05-04 CA CA 2270684 patent/CA2270684C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2270684A1 (en) | 1999-11-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170504 |