Method for the production of cross-linked and/or functionalized bitumen/polymer compositions and use of said compositions in coverings
US6852779B1 · kind B1 · utility
7Cited by
9References
30Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 21, 2000 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jun 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions produced by forming a homogenous mass consisting of a bitumen matrix wherein a cross-linked and/or functionalized elastomer produced in situ from a precursor elastomer is dispersed in a uniform manner and makes up 0.5-30% of the weight of the bitumen matrix. The bitumen matrix is created by associating 95%-20 wt. % non oxidized bitumen having a penetrability of 20-900 and 5-80 wt. % oxidized bitumen having a penetrability of 10-90. The compositions can be used as bitumen binders in the production of coverings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.