binder composition for use in forming nonwoven veils and fiberglass insulators, fibrous insulating material, nonwoven veil, insulating product formed by the process and method of producing a fibrous insulating material

摘要

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 is provided which includes a carbohydrate and a crosslinking agent. 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 surfactant with 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.