C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 61/06 (2006.01) C08L 63/00 (2006.01)
Patent
CA 2708427
An organic solvent free process to make an aqueous co-dispersion of epoxy resins and at least phenolic novolac resins is reported. The compositions of such co-dispersions are based on blends of epoxy resins and at least a phenolic novolac resin within the profile viscosity versus temperature in the ranges from 1 500 000 to 300 mPas at 80°C and 10 000 to 20 mPas at 120°C.
L'invention concerne un procédé de fabrication sans solvant organique d'une codispersion aqueuse de résines époxydes et d'au moins une résine novolaque phénolique. Les compositions de telles codispersions sont basées sur des mélanges de résines époxydes et d'au moins une résine novolaque phénolique dont le profil de viscosité par rapport à la température se situe dans les plages de 1 500 000 à 300 mPas à 80°C, et de 10 000 à 20 mPas à 120°C.
de Velder Helga
Leroy Alain
Hexion Specialty Chemicals Inc.
Momentive Specialty Chemicals Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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