Binder composition

A binder composition for a non-woven material such as fibreglass comprises a polymeric binder, an active hydrogen crosslinker, and a catalyst comprising a Lewis acid, organic acid salt and/or free radical generator. The catalyst is present in an amount of 1-25 wt. % based on the weight of the binder...

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Bibliographische Detailangaben
Hauptverfasser:	RICK HICKS, ALLEN M CARRIER, ALVIE L FOSTER, JAMES C LONG, KLEIN A RODRIGUES
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BRAIDING CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING KNITTING LACE-MAKING LAUNDERING MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS 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 WADDING WORKING-UP
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Beschreibung
Zusammenfassung:	A binder composition for a non-woven material such as fibreglass comprises a polymeric binder, an active hydrogen crosslinker, and a catalyst comprising a Lewis acid, organic acid salt and/or free radical generator. The catalyst is present in an amount of 1-25 wt. % based on the weight of the binder. The Lewis acid may be Al2(SO4)3.xH2O, MgCl2.6H2O or AlK(SO4)2.10H2O, the organic acid salt may be an alkaline earth salt and the free radical generator may be a peroxide. The binder preferably comprises (meth)acrylic acid and together with the crosslinker may form a single copolymer. A formaldehyde-free bonded fibrous material having a substrate capable of bearing a film comprising the binder composition is also disclosed. A bonded fibreglass mat having a substrate capable of bearing a film comprising a binder composition is also claimed, wherein the composition comprises a polymeric binder, a polyamine crosslinker, and a catalyst comprising a Lewis acid, organic acid salt, free radical generator, phosphorus-containing compound and/or fluoroborate compound.