FORMALDEHYDE-FREE BINDER AND USE FOR MINERAL WOOL INSULATION PRODUCTS

摘要

The present invention relates to a new formaldehyde-free binder composition for mineral wool products, wherein the binder composition is an aqueous composition containing starch, wherein an amount of 95 weight % or more of the starch is water-insoluble native starch, and an acrylic component. The present invention also relates to the use of this formaldehyde-free binder composition in the manufacturing of mineral wool insulation products. Finally, the present invention relates to a process for manufacturing the formaldehyde-free binder composition wherein a dispersion of starch, wherein an amount of 95 weight % or more of the starch is water-insoluble native starch, is brought in contact with the acrylic component at a temperature of not higher than 40° C.

主权项

1. A formaldehyde-free aqueous binder composition in the form of a dispersion comprising
starch, wherein an amount of 95 weight % or more of the starch is water-insoluble native starch, and one or more acrylic component(s) selected from the group consisting of polyacrylic acid, copolymers of acrylic and maleic acids, copolymers of ethylene-unsaturated moieties containing at least 10 mol % of acrylic acid, maleic acid or maleic anhydride; salts of any preceding (co)polymers, curable resins based on the preceding (co)polymers, and mixtures thereof.