Formaldehyde-free binder composition in powder form and application thereof for bonding substrates by thermal cure

• Main Authors: RAU, IRIS, GERST, MATTHIAS, LAUBENDER, MATTHIAS, MICHL, KATHRIN, RECK, BERND
• Format: Patent
• Language: English; French; German
• Published: 16.06.2004
• Edition: 7
• Subjects: ADHESIVES; BRAIDING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; COTTON-WOOL; DYES; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; INKS; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; TRIMMINGS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WADDING; WOODSTAINS

Formaldehyde-free binder composition in powder form comprises a maleic anhydride/alpha-olefin copolymer and a crosslinker having at least two reactive groups capable of reacting with the carbonyl groups of maleic anhydride. Independent claims are also included for: (1) binding fibrous and/or granular substrates by mixing the above composition with the substrates and preferably heating the mixture, optionally with addition of a catalyst; (2) products produced as above. Die vorliegende Erfindung betrifft eine pulverförmige, formaldehydfreie Bindemittelzusammensetzung aus a) einem pulverförmigen Copolymer aus Maleinsäureanhydrid, mindestens einem α-Olefin, gegebenenfalls Styrol; sowie, b) mindestens einem pulverförmigen Vernetzer; sowie, c) gegebenenfalls weiterer Zusatzstoffe. Weiterer Gegenstand der Erfindung ist ein Verfahren zum Binden von fasrigen und/oder körnigen Substraten mithilfe der erfindungsgemäßen Bindemittelzusammensetzung sowie die daraus erhältlichen Formkörper.