Cassella Aktiengesellschaft

Hoechst Aktiengesellschaft

Alfons Wolf

Steffen Piesch

Peter Dorries

Manfred Schon

Wilhelm Adam

Hans Honel

Walter Michel

Karin Schluter

Jurgen Ott

Frank Scholl

The present invention relates to melamine-formaldehyde resins comprising a guanamine, to processes for their preparation and to their use for the production of melamine resin films and edgings.

Impregnating resins for films and edgings

Melamine resins, a process for their preparation and their use and

Partially etherified melamine-formaldehyde resins having a melamine:formaldehyde molar ratio of 1:(1.25 to 1) can be prepared by a condensation reaction under neutral or weakly alkaline conditions if the condensation reaction is carried out in the presence of a glycol monoether of the general formula I

Melamine resins: process for their manufacture and the compression

Partially etherified melamine-formaldehyde resins having a melamine: formaldehyde molar ratio of 1:(1.25 to 1) can be prepared by a condensation reaction under neutral or weakly alkaline conditions if the condensation reaction is carried out in the presence of a glycol monoether of the general formula I

A melamine-formaldehyde resin useful for making coated wood-based materials and laminates and having a prolonged pot life comprises (a) melamine-formaldehyde precondensation product wherein the molar ratio of melamine:formaldehyde is 1:1.4 to 1:2.6 and (b) 0.1 to 1.0% by weight based on total solids, of an amine of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each identical or different alkyl having 1 to 4 carbon atoms and R.sup.3 is 2-hydroxyethyl, 2-(2-hydroxyethoxy)-ethyl, 3-hydroxy-1-propyl, 3-hydroxy-2-propyl, 2,3-dihydroxypropyl or

Melamine resin, process for its manufacture and its use for the

Growing community of inventors

Seligenstadt, Germany

Alfons Wolf