Process for the preparation of bitumen-polymer compositions containing a crosslinked elastomer and a functionalized olefinic polymer
US6011094A · kind A · utility
28Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1996 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Jul 9, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Bitumen/polymer compositions having improved mechanical properties are produced by stirring together, at a temperature of 100-230.degree. C., a bitumen or bitumen mixture, a sulphur-curable elastomer and a polymeric additive consisting of at least one functionalized olefin copolymer and a sulphur-donating coupling agent. The bitumen/polymer compositions may be used directly or in dilute form to make bituminous binders for road surfaces, coated materials and sealing coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.