CURABLE FORMALDEHYDE FREE COMPOSITIONS AS BINDERS HAVING SOLVENT RESISTANCE

• Main Authors: KELLY MICHAEL D, CRESCIMANNO STEPHEN A
• Format: Patent
• Language: English; Korean
• Published: 07.04.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; LAUNDERING; METALLURGY; 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; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The present invention provides an aqueous binder composition comprising one or more polyol and a multistage copolymer, desirably, an all acrylic and allylic or all acrylic copolymer, having as the outermost stage a polymerized acid functional aqueous solution polymer and as the one or more remaining stage(s) a vinyl emulsion polymer, wherein the emulsion polymer stage(s) in the multistage copolymer comprises 5 wt% or less of hydrophilic monomer, based on the total weight of monomers used to make the emulsion polymer stage(s). The multistage copolymer enables incorporation of a much higher amount of hydrophilic monomer into a polymeric binder without attendant handling or viscosity problems. Moreover, the present invention provides a method for using the aqueous binder composition comprising a pultrusion and drying of two or more non-woven fabric or a fiber roving with the aqueous binder composition. An article comprising the bound fiber(s) is provided.