Pointing compound
US4203881A · kind A · utility
1Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1978 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | Sep 29, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C11/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a pointing compound for use in making repairs particularly to road surfaces. In accordance with the invention, the pointing compound comprises a mixture of mildly air blown bitumen, at least 25% by weight of polyolefin material selected from polyethylene, polypropylene and copolymers thereof and 10 to 40% by weight of a high boiling aromatic mineral oil. The amorphous polyolefin material preferably has a molecular weight ranging from 25,000 to 30,000 and a viscosity at 170.degree. C. of 2,000 to 5,000 cp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.