Patent ID: 7704603

Claim:
A product, comprising mineral fibers that have been coated with a sizing composition, wherein: the sizing composition comprises a liquid resin and a crosslinking agent; the sizing composition comprises from 18 to 65 parts by weight of the liquid resin expressed as parts of dry matter; the sizing composition comprises from 10 to 82 parts by weight of the crosslinking agent expressed as parts of dry matter; the liquid resin exhibits a dilutability in water at 20° C. at least equal to 1,000%; the liquid resin comprises at least 70% by weight of condensates obtained by reacting a phenolic compound simultaneously with formaldehyde and an aminoalcohol according to the Mannich reaction; the mineral fibers comprise glass or rock; and the product is selected from the group consisting of (1) a tissue mat of the mineral fibers and having a weight per unit area of between 10 and 300 g/m 2 , (2) a thermal and/or sound insulation product obtained by forming a blanket of the sized mineral fibers, and (3) the thermal and/or sound insulation product having the tissue mat positioned over at least one of its external faces.