Wood preservatives

US6506795B1 · kind B1 · utility

Assignee

• WEYL GmbH · DE

Inventors

• Volker Barth · Ludwigshafen, DE
• Helmut Hartner · Weinheim, DE
• Volker Beez · Mannheim, DE

Key dates

• Filing date: Mar 26, 1996
• Grant date: Jan 14, 2003
• Expiry date: Mar 26, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/662
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A chromium-free wood preservative consisting essentially of 1 to 35% by weight of a mixture of 25 to 75 parts by weight of a fatty amine ethoxylate and 75 to 25 parts by weight of at least one member of the group consisting of an unsaturated fatty acid of 3 to 25 carbon atoms and their copper and zinc salts and water.