Wood preservative

US5078912A · kind A · utility

Assignee

• Dr. Wolman GmbH · DE

Inventors

• Reimer Goettsche · Baden-Baden, DE
• Hans-Norbert Marx · Bühl, DE
• Wendelin Hettler · Baden-Baden, DE
• Richard Stanek · Ingelheim am Rhein, DE
• Hans-Peter Heidenreich · Baden-Baden, DE

Key dates

• Filing date: May 1, 1991
• Grant date: Jan 7, 1992
• Expiry date: May 1, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B27K3/52
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An agent for impregnating solid wood by the pressure process, based on a water-dilutable formulation of a copper salt, excess alkanolamine and, if required, a salt with a fungicidal anion, has a pH of not less than 8 in the concentration usually employed and corresponding to about 1-5% by weight of non-aqueous components in the aqueous solution.