Deterioration preventive for concrete or mortar and method for preventing deterioration of concrete or mortar
US6159281A · kind A · utility
3Cited by
1References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/23
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a deterioration inhibitor for concrete or mortar which does not pollute water and which, in a small amount, can prevent the deterioration of concrete or mortar due to sulfur oxidizing bacteria for a long time, and also provides a method of inhibiting the deterioration of concrete or mortar which uses the deterioration inhibitor. A phthalocyanine compound is an effective component of the deterioration inhibitor for concrete or mortar. In the method of inhibiting the deterioration of concrete or mortar, the phthalocyanine compound is added to concrete or mortar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.