DR. REINHARD VORMBERG,DR. INGO FLEUTE-SCHLACHTER,DR. WOLFGANG LORTZ,DR. JOCHEN SCHEFFLER,DR. KAI SCHUMACHER,DR. EWALD SIEVERDING
申请号：
IN380/KOLNP/2008
公开号：
IN250590B
申请日:
2008.01.28
申请国别(地区):
IN
年份:
2012
代理人:
摘要：
Composition for weed control containing at least one photocatalytically active metal oxide powder and at least one wetting agent for weed control, wherein a) the photochemically active metal oxide powder is a titanium dioxide powder having a BET surface area of at least 20 m2/g and a mean particle of less than 200 nm, b) the wetting agent comprises a polysiloxane of the general formula R3- Si-[OSiRR1]n-O-SiR3, wherein R is an alkyl residue with 1 to 6 carbon atoms R1 has the structure -Z-O-R2 and Z is a divalent, optionally branched alkylene residue with 2 to 6 carbon atoms in the alkylene chain, R2 is a residue of the formula (CmH2mO-)sR3, wherein m is a number > 2.0 and < 2.5, s is a number from 4 to 21 and R3 is a hydrogen residue, an alkyl residue with 1 to 4 carbon atoms or an acetyl residue, and n is a number from 1 to 4 and c) the content of titanium dioxide powder is 0.02 to 5 wt.% and that of the wetting agent 0.001 to 2 wt.%.
