Composition de liant thermodurcissable pour la fabrication de produits d'isolation contenant un ester oligomérique hydrosoluble

• Main Authors: GUERIN, William, LEGRAND, Aurélie, HERMANT, Fabien
• Format: Patent
• Language: French
• Published: 27.10.2023
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; LAUNDERING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MINERAL OR SLAG WOOL; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; USE OF MATERIALS AS ADHESIVES

La présente invention concerne une composition de liant thermodurcissable contenant de l'eau et un ester oligomérique hydrosoluble - d'au moins un glucide choisi parmi les sucres réducteurs, les sucres non-réducteurs et les sucres hydrogénés, les sucres hydrogénés étant choisis dans le groupe constitué de l'érythritol, l'arabitol, le xylitol, le sorbitol, le mannitol, l'iditol, le maltitol, l'isomaltitol, le lactitol, le cellobitol, le palatinitol, le maltotritol et les produits d'hydrogénation d'hydrolysats d'amidon ou d'hydrolysats de matières ligno-cellulosiques, - d'au moins un diol, et - d'au moins un acide polycarboxylique, la composition de liant ayant une teneur en matières solides comprise entre 40 % et 80 % en poids, l'ester oligomérique hydrosoluble représentant au moins 70 % en poids des matières solides de la composition de liant thermodurcissable, et le rapport du nombre de groupes hydroxyle de l'ensemble des diols au nombre de groupes hydroxyle de l'ensemble des diols et glucides étant compris entre 5 % et 50 %. The present invention relates to a thermosetting binder composition containing water and a water-soluble oligomer ester; - at least one carbohydrate selected from among reducing sugars, non-reducing sugars and hydrogenated sugars, the hydrogenated sugars being selected from the group made up of erythritol, arabitol, xylitol, sorbitol, mannitol, iditol, maltitol, isomaltitol, lactitol, cellobitol, palatinitol, maltotritol and the products of hydrogenation of starch hydrolysates or hydrolysates of lignocellulose materials; - at least one diol; and - at least one polycarboxylic acid, the binder composition having a solid matter content ranging between 40% and 80% by weight, the water-soluble oligomer ester accounting for at least 70% by weight of the solid matter of the thermosetting binder composition, and the ratio of the number of hydroxyl groups of all the diols to the number of hydroxyl groups of all the diols and carbohydrates ranging between 5% and 50%.