This
article presents new possible approaches for alkyd resin architecture in order
to comply with market constraints related to VOC emissions. Examples and
performance of alkyd concepts are presented with regard to VOC content and
performance for “interior/exterior trim and cladding paints for wood and
metal”.
In Directive 2004/42/CE, from the European
Parliament and the Council, limitations are established for the maximum VOC in
decorative paints to be used within the EU. The products covered by the
Directive are for use on buildings, trims, fittings and structures associated
with buildings. Specific sub-categories are listed in the Directive with
different limitations for maximum VOC in g/L of the ready-to-use product with
two sets of limits for each sub-category. The first set of limit values will
apply from 1 January 2007 and the second, stricter set, from 1 January 2010.
Limits are established for both solventborne and for waterborne paints. The
target levels are presented in Table 1.