| 摘要 |
<p>Particles with a hindered amine light stabilizer and a microporous organic polymer The present invention describes a microporous particle comprising
a) a compound of formula I
wherein
the radicals R are independently of one another an alkyl group or a hydroxyalkyl group having 1-30 carbon atoms or an alkenyl group having 2-30 carbon atoms,
n is an integer from 1 to 4,
when n = 1
R 1 is an alkyl group having 1-22 carbon atoms, an alkenyl group having 2-22 carbon atoms or the group represented by the formula II
when n = 2 to 4
R 1 is an organic group having 2-20 carbon atoms of valency n,
and
b) a microporous material containing an organic polymer. Furthermore, a process for manufacturing the particles and their use for stabilization of synthetic polymers is described.</p> |
