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Alain De Meringo

Jean-Luc Bernard

Francois Bouquet

Alain Debouzie

Hans Furtak

Fabrice Lafon

Wolfgang Holstein

Sylvie Thelohan

Fabrice Laffon

Enrique Garcia-Lopez

Veronique Renous Chan

The subject of the invention is a mineral wool capable of being dissolved in a physiological medium and comprising the constituents below in the following percentages by weight:

Mineral wool composition

The subject of the invention is a mineral wool composition capable of dissolving in a physiological medium which comprises the constituents below, having to the following percentages by weight:

Artificial mineral wool composition

The invention relates to 'two-component' inorganic fibers obtained by conjoint fiber formation from two different inorganic compositions, especially two glass compositions based on SiO.sub.2, alkali metal oxides and alkaline-earth metal oxides;

The present invention relates to mineral fiber compositions useful for forming fibers which are readily degraded in a physiological medium such as that found within the human body. Advantageous compositions formed according to the present invention comprise the following components in the proportions by weight set forth below:

Mineral fibers decomposable in a physiological medium

A method of forming felts, the fibers of which are disposed in random directions, by depositing the fibers which are carried by a current of gas on a gas-permeable conveyor, the fibers, prior to being deposited, being coated with a binder composition. The felt constituted on the conveyor is subjected to at least one longitudinal compression, the intensity of which is regulated in such a way that no creases form on the surface. The felts obtained are highly resistant to compression, tearing and flexion.

Forming of felts which have an isotropic structure

The invention relates to the forming of felts, the fibres of which are disposed in random directions. These felts are obtained by depositing the fibres which are carried by a current of gas on a gas-permeable conveyor, the fibres, prior to being deposited, being coated with a binder composition. The felt constituted on the conveyor is subject to at least a longitudinal compression, the intensity of which is regulated in such a way that no creases form on the surface. The felts obtained are highly resistant to compression, to tearing and to flexion.

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Paris, France

Alain De Meringo