AlO-CONTAINING HIGH TEMPERATURE-RESISTANT FIBROUS FIBERGLASS TAPE WITH HIGH TEXTILE PROPERTIES AND PRODUCTS BASED THEREON Russian patent published in 2003 - IPC

FIELD: mineral fibers. SUBSTANCE: invention, in particular, relates to silica-based Al₂O₃-containing high temperature-resistant fibrous fiberglass tape containing staple fibers 50 to 1000 mm long and having high textile characteristics, volume, and cotton- like properties. Invention also concerns products from indicated tape and application thereof. Textile characteristics and high-temperature resistance are achieved, in particular, by way of selective acid extraction. After extraction, fibrous tape contains 85-99% silica and 1-5% alumina as auxiliary component, whereas starting composition is as follows, wt %: silica 70-75, sodium or potassium oxide 15-25, alumina 1-5, other components up to 5. EFFECT: improved textile and thermal properties. 19 cl, 5 ex