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

摘要

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.