C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 59/34 (2006.01) C08G 63/91 (2006.01) C09D 163/08 (2006.01) C09D 167/00 (2006.01)
Patent
CA 2437129
The invention concerns solid epoxidic cycloaliphatic hydroxylate resins, a process for the production thereof and compositions of hardenable powder-base paints containing the said resins. In particular, the said procedure enables solid epoxidic cycloaliphatic hydroxylate resins to be prepared with Tg >= 35~C, epoxidic equivalent weight between 190 and 3,000, preferably between 250 and 2,000, Hydroxyl Number between 15 and 200 mg KOH/g, numeric molecular weight between 800 and 15,000, preferably lying between 1,000 and 10,000.
La présente invention concerne des résines solides d'hydroxylate cycloaliphatique époxidé, leur procédé d'élaboration, et compositions de peintures durcissables à base de poudre contenant ces résines. Le procédé de l'invention permet plus particulièrement l'élaboration de résines solides d'hydroxylate cycloaliphatique époxidé à Tg >= 35·C, d'une masse d'équivalent époxyde de 190 à 3000, de préférence de 250 à 2000, d'un nombre hydroxyle de 15 à 200 mg KOH/g, et de masse moléculaire en nombre de 800 à 15000, de préférence de 1000 à 10,000.
Carantani Barbara
Cavalieri Roberto
Chinellato Robertino
Fumagalli Carlo
Gazzea Sergio
Lonza S.p.a.
Marks & Clerk
Solutia Italy S.r.l.
Surface Specialities Italy S.r.l.
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