Polyolefin thermoplastic roofing membranes with improved burn resistivity
US12044013B2 · kind B2 · utility
0Cited by
26References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2023 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Jan 12, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/258
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi-layered thermoplastic roofing membrane comprising a planar body including at least three layers, said at least three layers including (i) a top layer that includes magnesium hydroxide dispersed within a thermoplastic resin, (ii) an upper middle layer disposed below said top layer and including magnesium hydroxide and calcium carbonate dispersed within a thermoplastic resin, and (iii) a lower layer disposed below said upper middle layer and including magnesium hydroxide and calcium carbonate dispersed within a thermoplastic resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.