ADHESIVE, METHOD OF PRODUCING THE SAME AND USES THEREOF

• Main Authors: MIKKONEN, HANNU, SIIKA-AHO, MATTI, MALI, JYRKI, SUURNAEKKI, ANNA, SUOMI-LINDBERG, LEENA, KIVISTOE, ANTTI, PAAJANEN, LEENA, KALLIOINEN, ANNE, VIIKARI, LIISA, PELTONEN, SOILI
• Format: Patent
• Language: English; French; German
• Published: 24.10.2012
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DERIVATIVES THEREOF; DYES; 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; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NAILING OR STAPLING MACHINES IN GENERAL; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; POLYSACCHARIDES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

An adhesive composition and a method of producing the same. According to the present invention, a first adhesive component which comprises polyphenol and another adhesive component which comprises a starch derivative, are dissolved or dispersed in water. The polyphenol and the starch derivative are added into the water at a weight ratio which is approximately 1:50 . . . 50:1, in which case the quantities of polyphenol and starch derivative added are such that the dry matter percentage of the adhesive composition is at least 40% by weight. The composition according to the present invention is particularly suitable for gluing of fibrous, such as laminated or veneer-based products.