Saint Gobain Isover

Saint-gobain Abrasives, Inc.

Saint-gobain Abrasifs

Welya

Olivier Pons Y Moll

Boris Jaffrennou

Edouard Obert

Philippe Espiard

Jérôme Douce

Kottotil Mohan Das

Serge Tetart

Stéphane Lohou

Abdul Habid Pullichola

Adiseshaiah K Seshu

Vincent Gignoux

Jagmohan Verma

Maria Fabra Puchol

Helene Menival

Hélène Menival

The present invention relates to a sizing composition for mineral fibers, especially glass fibers or rock fibers, containing a liquid phenolic resin having a free formaldehyde content, expressed with respect to the total weight of liquid, of 0.1% or less and an extender. Preferably, the liquid phenolic resin is mainly composed of phenol-formaldehyde and phenol-formaldehyde-amine condensates and has a water dilutability, at 20° C., at least equal to 1000%. Another subject of the present invention is the insulating products based on mineral fibers treated by said sizing composition.

Sizing composition for mineral fibers and resulting products

The present invention relates to a sizing composition for mineral fibers, especially glass fibers or rock fibers, containing a liquid phenolic resin having a free formaldehyde content, expressed with respect to the total weight of liquid, of 0.1% or less and an extender. Preferably, the liquid phenolic resin is mainly composed of phenol-formaldehyde and phenol-formaldehyde-amine condensates and has a water dilutability, at 20&#xb0; C., at least equal to 1000%. Another subject of the present invention is the insulating products based on mineral fibers treated by said sizing composition.

A sizing composition for insulating products based on mineral wool, in particular of glass or of rock, includes at least one reducing sugar, and at least one inorganic acid metal salt chosen from inorganic acid alkali metal, alkaline earth metal, transition metal or poor metal salts. Furthermore, insulating products based on mineral fibers obtained and their process of manufacture are presented.

Sizing composition for mineral wool comprising a reducing sugar and an inorganic acid metal salt, and insulating products obtained

A resorcinol-modified phenolic resin composition is formed by reacting a basic catalyst, formaldehyde, water and a benzene-ol to form an intermediate composition to which resorcinol is subsequently added to reduce the presence of free formaldehyde. Optionally, an alkanolamine can be combined and reacted with the resorcinol-modified phenolic resin composition to form a resorcinol-alkanolamine-modified phenolic resin composition. The resorcinol-modified phenolic resin and the resorcinol-alkanolamine-modified phenolic resin compositions can be employed to coat abrasive products having a relatively low free formaldehyde content.

Phenolic resin formulation and coatings for abrasive products

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Agnetz, France

Olivier Pons Y Moll