Method of preparing novel bitumen compositions
US4154710A · kind A · utility
24Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Sep 15, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of preparing novel bitumen compositions which comprises a first step wherein an olefinic unsaturated organic compound having a molecular weight varying between 300 and 30,000 is added to a bitumen having a penetration value varying between 30 and 220, and a second step wherein a polymer having a molecular weight varying between 100,000 and 2,000,000 is added to the product obtained from said first step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.