Process for the staining of wood with aqueous wood stains
US6630002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jul 15, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D15/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the staining of wood, which comprises treating the unstained wood with an aqueous preparation comprisinga) at least one dye, andb) at least one dye stabilizer of the formula (I) or (II)  in whichG1 and G2, independently of one another, are C1-C4alkyl or together are pentamethylene, Z1 and Z2 are methyl, or Z1 and Z2 form a bridging member which is unsubstituted or substituted by an ester, ether, hydroxyl, oxo, cyanohydrin, amido, amino, carboxyl or urethane radical,E is oxyl or hydroxyl, and X is an inorganic or organic anion, and the total number of cations h corresponds to the total number of anions j, to a wood stain comprising a dye and a dye stabilizer of the formula (I) or (II), and to the use of this wood stain for the staining of wood.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.