C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 65/30 (2006.01) C07C 45/40 (2006.01) C07C 47/02 (2006.01) C07C 47/27 (2006.01) C07C 51/373 (2006.01) C08G 8/04 (2006.01) C08G 8/24 (2006.01) C08L 61/06 (2006.01) C09J 161/06 (2006.01) C09J 191/00 (2006.01)
Patent
CA 2352331
The invention provides a process for modifying CNSL comprising subjecting the CNSL to ozonolysis to form ozonolysis reaction products followed by reduction of the ozonolysis reaction products to give a mixture of phenolic components and aldehydes. In a preferred embodiment, the invention provides a process for modifying CNSL which comprises the steps of first reacting CNSL with ozone to form a mixture containing ozonolysis reaction products, and secondly treating the mixture under reducing conditions to form a further mixture containing phenolic components with an eight carbon chain having a terminal CHO group and alkyl components of varying lengths with either one or two terminal CHO groups. The resulting CNSL aldehydes can be used to form adhesives for use in the manufacture of composites such as wood particle board.
L'invention porte sur un procédé de modification des composants du liquide extrait de la coque du cajou (CNSL) par ozonolyse, de manière à obtenir des produits de réaction, qui soumis à une réduction, donnent un mélange de composants phénoliques et d'aldéhydes. Dans l'exécution préférée, le CNSL est amené à réagir avec de l'ozone pour former un mélange contenant les produits de réaction d'ozonolyse, qu'on traite ensuite dans des conditions de réduction pour produire un nouveau mélange contenant des composants phénoliques à chaîne à huit carbones et à groupe terminal CHO, et des composants alkyliques de différentes longueurs à un ou deux groupes terminaux. Les aldéhydes de CNSL résultantes peuvent servir à former des colles servant à la fabrication de composites tels que des panneaux de particules de bois.
Khan Mohammed Lokman
Salisbury Richard James
Tomkinson Jeremy
Cambridge Biopolymers Limited
E. I. Du Pont de Nemours And Company
Marks & Clerk
The University Of Wales Bangor
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