Bitumen composition
US7060743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2003 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Oct 10, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/68
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a bitumen composition including: —(i) from 0.1 to 25% wt of an elastomer, (ii) from 0.1 to 40% wt of a solvent, (iii) from 30 to 99% wt of a bitumen, (iv) from 0.1 to 30% wt of a lithium salt of a C10–C40 fatty acid or hydroxy fatty acid, and optionally (v) from 0 to 70% wt of a filler, all weights based on total bitumen composition, wherein the solvent is of general formula (I),wherein R1 represents a hydrogen atom or a hydrocarbyl group having from 1 to 6 carbon atoms, R2 represents a hydrocarbyl group having from 1 to 6 carbon atoms, and the sum of the carbon atoms in R1 and R2 is from 5 to 7; a process of preparing said bitumen composition and the use of the composition as a cold-applicable adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.