Power lacquer binders and process for the preparation thereof
AssigneeBayer Aktiengesellschaft
InventorsLudwig Rottmaier, Rudolf Merten, Rolf Dhein, Hans J. Kreuder
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Abstract
A powder lacquer binder composition which comprises a homogeneous crosslinkable mixture comprising: (A) a polymer containing more than one carboxyl group and having a melting and softening point of from 20.degree. to 150.degree. C. (as determined by differential thermoanalysis) and an acid number of from 10 to 150 mg of KOH/g; and (B) a 1,2-polyepoxide which is N,N',N"-triglycidyl triazolidine-3,5-dione having an epoxide value of from 0.6 to 1.13; the mixture containing from 0.5 to 1.5 1,2-epoxide group per carboxyl group; and a process for the preparation thereof.
Claims7
A powder lacquer binder composition which comprises a homogenous, cross-linkable mixture comprising:
- (A) A polymer containing more than one carboxyl group and having a melting and softening point of from 20.degree. to 150.degree. C. (as determined by differential thermoanalysis) and an acid number of from 10 to 150 mg of KOH/g;
- and
- (B) a 1,2-polyepoxide which is an N,N',N"-triglycidyl triazolidine-3,5-dione having an epoxide value of from 0.6 to 1.13;
- the mixture containing from 0.5 to 1.5 1,2-epoxide group per carboxyl group.
Dependencies are inferred from the claim text.