Waterproofing membranes with a specific gravity of under 1 G/CM3 based on bitumen modified with polymers containing hollow glass microspheres
US8030394B2 · kind B2 · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2010 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Jun 15, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L23/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are waterproofing membranes consisting of a backing impregnated with a bituminous formulation comprising industrial bitumen, a mineral filler, a thermoplastic polymer or a mixture of thermoplastic polymers, characterized in that the mineral filler consists of hollow glass microspheres with a density of between 0.10 and 0.14 g/cm3 and a size of less than 120 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.