Asphalt-adhesion improving additives prepared by formaldehyde condensation with polyamines
US4639273A · kind A · utility
30Cited by
5References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1983 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Aug 12, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L95/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Formaldehyde adducts of amines, polyamines and amides conforming to the general formula ##STR1## are employed in asphalt compositions in order to improve the overall adhesion between the asphalt and aggregate or glass fiber or glass fiber mesh and to thereby increase the tensile strength of the asphalt composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.