Water-repellent aqueous wood-treating solutions
US4218249A · kind A · utility
9Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1979 |
| Grant date | Aug 19, 1980 |
| Priority date | — |
| Expiry date | Jul 9, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K3/52
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Aqueous wood- and paper-treating solutions are provided of hexavalent chromium and, optionally, copper or copper-arsenic mixtures with aluminum halohydrates in an acid medium which provide increased water repellency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.