Melamine-formaldehyde condensates and mixtures thereof

Details Melamine-formaldehyde condensates and mixtures thereof Melamine-formaldehyde condensates and mixtures thereof

1975-06-25

1977-08-02

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 294R, 260 334R, 260 676R, C08K 505, C08L 6120, C08L 9100

Patent

active

040394930

ABSTRACT:
Low-viscosity high-solids-content melamine-formaldehyde condensates having high reactivity, low content of free formaldehyde and good compatibility, are prepared by effecting condensation in an alcohol having up to 3 carbons, then concentrating the condensate and heating the concentrate 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.

REFERENCES:
patent: 3458464 (1969-07-01), Shriver et al.
patent: 3562001 (1971-02-01), McGuire
patent: 3647755 (1972-03-01), Giller

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