C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/4214, 400/54
C08L 61/28 (2006.01) C08G 12/42 (2006.01) C08L 67/00 (2006.01) C09D 133/06 (2006.01) C08L 61/20 (2006.01)
Patent
CA 1050678
PROCESS FOR THE PRODUCTION OF MELAMINE RESIN SOLUTIONS Abstract of the Disclosure Low-viscosity high-solids-content melamine-formaldehyde condensates having high reactivity, low content of free formaldehyde and good compatibility, are prepared by effec- ting condensation in an alcohol having up to 3 carbons, then concentrating the condensate and heating the concen- trate in a higher alcohol having from 3 to 18 carbons and again concentrating. The final product cures on heating to a hard glossy film and can be added to other uncured resins to improve the hardness of their films.
230235
Durr Helmut
Keller Karlfried
Michel Walter
Plath Dieter
Schon Manfred
Cassella Farbwerke Mainkur Aktiengesellschaft
Na
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