FIELD: chemistry.
SUBSTANCE: present invention relates to an aqueous binding composition for mineral fibre, a method of making an article from bound mineral fibre, an article and bound porous substrate. The aqueous binding composition contains a water-soluble binding component. Said component is obtained in one or more steps from at least one alkanolamine, at least one carboxylic acid anhydride and at least one polyalkylene glycol component. The polyalkylene glycol component is selected from polyalkylene glycols, copolymers or derivatives thereof. The method of making the article involves bringing mineral fibre into contact with the binding composition and then hardening the binding composition. Obtaining articles from bound mineral fibre without or with reduced release of harmful substances, and also having improved wetting properties for a long period of time, water absorption capacity and longer submergence time.
EFFECT: obtaining an aqueous binding composition suitable for binding mineral fibre and having excellent binding characteristics, good solubility in water and dilution with water.
31 cl, 3 ex
