Preservative composition for wood
US4622248A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1985 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | May 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K3/52
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method and composition for preserving wood and other cellulose based materials against destructive organisms responsible for rot and decay, namely fungus and insects. The composition comprises an aqueous ammoniacal solution of a preservative metal compound and an organic acid selected from the group consisting of aliphatic dicarboxylic acids containing 2-10 carbon atoms per molecule, aliphatic mono, di or tricarboxylic hydroxy acids containing 2-6 carbon atoms per molecule or a mixture of these acids and/or their salts. The preservative composition may be applied by dipping, soaking, spraying, brushing or by any other well known means including vacuum and/or pressure applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.