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Self crosslinking styrene butadiene for the nonwovens, coatings and construction |
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Self-crosslinking styrene butadiene polymers for the nonwovens, coatings and construction markets have been introduced by Omnova Solutions in its new line of Omnabond�. These polymers offer a number of advantages over standard styrene butadiene emulsions, including improved wet and dry tensile properties, filler acceptance, color fastness, caustic resistance, and adhesion to both synthetic and natural fibers. When compared to current commercially available self-crosslinking products, these polymers feature considerably lower levels of formaldehyde, which can be an important health and environmental consideration. The wet tensile strength performance of these polymers make them ideal for a number of short- and long-life nonwovens applications including towels, wipes and filtration media, as well as a variety of other specialty uses. These high strength properties enable lower binder levels, which makes these polymers an excellent substitute for other polymer chemistries, including vinyl acetate ethylene (VAE) and acrylic polymers. Additionally, their accelerated cure rate reduces or eliminates the need for an external catalyst to achieve optimal performance. They also can be combined with external cross-linkers, like melamine and urea formaldehyde (UF) resins for long-life applications, including commercial roofing binders.
These self-crosslinking styrene butadiene polymers are available in a broad range (-25�C to +35�C) of glass transition temperatures. The product line complies with FDA regulations 21 CFR 176.170 and 176.180 for contact with food products.
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