Rockwool International A/s

Rockwool A/s

Svend Grove-Rasmussen

Lars Elmekilde Hansen

Soren Lund Jensen

Vermund Rust Christensen

Carsten Jensen

Marianne Guldberg

Mette Solvang

Leth Moller: Per

Bruno Friis Rasmussen

Mathilde Rosendahl Foldschack

Peter Larsen

The invention relates to a melt composition for the production of man-made vitreous fibers and man-made vitreous fibers comprising the following oxides, by weight of composition: wherein the proportion of Fe(2+) is greater than 80% based on total Fe and is preferably at least 90%, more preferably at least 95% and most preferably at least 97% based on total Fe.

Melt composition for the production of man-made vitreous fibres

Man-made vitreous fibres

Method of making fibers from mineral melts which have a viscosity of not

The invention relates to stone wool formed from stone melt and consisting of 70 to 90% by weight stone wool fibers having diameters of up to 5 .mu.m, 0 to 5% by weight stone wool fibers having diameters above 5 .mu.m, and 10 to 25% by weight shot having a diameter of at least 63 .mu.m, and in which the average diameter of the fibers is from 1 to 4 .mu.m, the ratio of average fiber length:average diameter is 1,000 to 3,000, wherein the stone wool has a density from 12 to 85 kg/m.sup.3 and thermal conductivity lambda values from 30 to 40 mW/m.degree.K at 10.degree. C.

Stone wool

Process and apparatus for making mineral wool fibres

Processs and apparatus for making mineral wool fibres

Growing community of inventors

Roskilde, Denmark

Svend Grove-Rasmussen