Hydroxyl-group-containing polyether amine adducts

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

C08G 59/40 (2006.01) C08G 59/18 (2006.01) C08G 65/00 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2429300

The invention relates to hydroxyl-group-containing polyether amine adducts a) that are obtainable by the reaction of polyglycidyl ethers a1), prepared from polyalkylene ether polyols having an average molecular weight Mw of from 200 to 10,000 and epichlorohydrin, with amines a2) that contain at least two reactive amine hydrogen atoms per molecule, to form polyether amines, and subsequent addition reaction of those polyether amines with epoxy compounds a3) that contain atleast one epoxy group per molecule, furthermore to curable compositions comprising an epoxy resin b) and an adduct a) and also to the use of those curable compositions for the manufacture of mouldings, coverings and foamed materials.

L'invention concerne des adduits d'amine polyéther contenant un groupe hydroxyle (a), qui peuvent s'obtenir par la réaction d'éthers polyglycidyle (a1) préparés à partir de polyols d'éther polyalkylène ayant un poids moléculaire moyen compris entre 200 et 10000 et d'épichlorohydrine, avec des amines (a2) qui contiennent au moins deux atomes d'hydrogène amine réactifs par molécule pour former des amines polyéther, et une réaction d'addition subséquente des amines polyéther avec des composés époxy (a3) qui contiennent au moins un groupe époxy par molécule. L'invention concerne également des compositions durcissables renfermant une résine époxy (b) et un adduit (a), ainsi que l'utilisation de ces compositions durcissables pour la fabrication de moulages, de revêtements et de matériaux expansés.

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