Use of timber materials comprising polyamine for lowering formaldehyde content in ambient air

• Main Author: STEPHAN WEINKOTZ
• Format: Patent
• Language: English
• Published: 31.01.2008
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HEATING; HUMAN NECESSITIES; HYGIENE; LIGHTING; MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MECHANICAL ENGINEERING; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NAILING OR STAPLING MACHINES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; RANGES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; VENTILATING; WEAPONS; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

The present invention relates to the use of wood-base materials for the production of furniture parts, wall claddings, insulation materials and the like for reducing the formaldehyde content in the ambient air, the wood-base materials (iii) comprising polyamine as a binder or (iv) comprising a binder differing from polyamine and additionally having polyamine in or on the outer layers of the wood-base material and the polyamine having a molecular weight of at least 500 g/mol and at least 6 primary or secondary amino groups.