| 摘要 |
<p>Compounds of formula (I), in which m + n is a number from 1 to 100 and n varies from zero to 90 % of the sum of m + n; R1 and R3, which may be identical or different, are for example C1-C18alkyl or phenyl; R2 is C2-C12alkylene; G is for example a group of formula (IId), in which R5 and R6 are for example hydrogen; R4 is for example C1-C18alkyl; L1 has for example any one of the meanings given to R1 or is a group (R28)3SiO- where R28 is C1-C18alkyl; and L2 is for example hydrogen, Na, K, C1-C8alkyl or a group (R28)3Si-, with R28 as defined above. The compounds of formula (I) are useful as light, heat and oxidation stabilizers for organic materials.</p> |
