C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
117/197, 402/203
C08G 63/18 (2006.01) B05D 1/00 (2006.01) C09D 167/02 (2006.01)
Patent
CA 1061936
ABSTRACT OF THE DISCLOSURE: The invention relates to a partially crystalline thermoplastic polyester coating powder, in which the polyester has a glass transition temperature of from -20°C to +50°C measured as a vaporisation maximum according to DIN 53445, a reduced viscosity ?red of at least 0.6 measured in 1% by weight solution of a mixture of 60 parts by weight of phenol and 40 parts by weight of 1,1,2,2-tetrachlorethane at 25°C and a melting maximum measured by the differential thermo-analysis method of from 150 to 200°C, and wherein said polyester is obtained by reacting an acid component comprising terephtalic acid or a mixture of terephtalic acid and one or more other sliphatic and/or aromatic dicarboxylic acids, or polyester forming derivatives thereof, with a diol component comprising butane-1,4-diol and from 0 to 50 mol % of another aliphatic diol having from 2 to 12 carbon atoms. The product of the present invention is used in coating substrates like metals.
209352
Bruning Klaus
Hahn Siegfried
Sturm Karl-Gunter
Dynamit Nobel Aktiengesellschaft
Na
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