| 摘要 |
<p>The invention relates to fast drying biocidal concentrates and their diluted compositions having enhanced penetration for the treatment and preservation of wood, leather and similar natural products, which concentrate contains: (a) between about 0.5 and about 7 wt.% of an insecticidally or fungicidally active nitrogen- or sulfur-containing component and (b) between about 20 and about 55 wt.% of a solvent for the active component comprising (i) butyrolactone containing 0 to about 85 wt.% N-methyl pyrridone and/or 0 to about 80 wt.% of a C2 to C4 aliphatic alcohol or (ii) a 10/90 to 60/40 mixture of N-methyl pyrrolidone/C2 to C4 aliphatic alcohol. To the above concentrate, 25-80 volumes of diluent can be added by incorporation of the above described aliphatic alcohol, a petroleum distillate boiling above 40 °C or a mixture thereof to provide a final diluted composition containing at least 20 wt.% C2 to C4 alcohol.</p> |
