| abstract |
aqueous binder composition for use in forming nonwoven veils and fiberglass insulators, fibrous insulating product, nonwoven veil, insulating product formed by the process and method of producing a fibrous insulating product. An aqueous binder composition comprising a carbohydrate and a crosslinking agent is provided. in exemplary embodiments, the carbohydrate-based optimum composition may also include a catalyst, a coupling agent, a process aid, a crosslinked density enhancer, an extender, a moisture resistant agent, a non-dusty oil, a dye, a corrosion inhibitor, a surfactantwith a ph adjuster and combinations thereof. Carbohydrate can be nartural in origin and derived from renewable sources. In addition, the carbohydrate polymer has a dextrose equivalent number of from 2 to 20. In at least one exemplary embodiment the carbohydrate is a water soluble polysaccharide such as dextrin or maltodextrin and the crosslinking agent is citric acid. Advantageously, carbohydrates have a low viscosity and cure at moderate temperatures. The environmentally sustainable formaldehyde free binder can be used in forming insulating materials and nonwoven shredded webs. A method of manufacturing fibrous insulating products is also provided. |