Process of inhibiting tannin migration in tannin-containing wood substrates
US4075394A · kind A · utility
9Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1976 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Apr 8, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/662
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Tannin migration in tannin-containing wood substrates, such as redwood and cedar, is inhibited by treating said substrate with an aqueous solution of polyalkylenimine, such as polyethylenimine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.