发明授权
US5741905A Triazine ultraviolet absorbers useful for improving the sun protection factor of textiles 失效
用于提高纺织品防晒系数的三嗪紫外线吸收剂

Triazine ultraviolet absorbers useful for improving the sun protection
factor of textiles
摘要:
New compounds having the formula ##STR1## in which m is 1 or 2; when m is 1, A is a residue selected from those of the formulae ##STR2## and, when m is 2, A is a residue of the formula ##STR3## B is --O--, --NH-- or --SO.sub.2 --, and D is as defined herein, are useful as ultraviolet absorbing agents (UVAs) and a method of improving the sun protection factor of textile fibre material by treating the material with the new compounds.
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