发明授权
US4321190A Polyolefin compositions stabilized against UV light radiations with open-chain hindered amines 失效
使用开链受阻胺稳定抗紫外线辐射的聚烯烃组合物

Polyolefin compositions stabilized against UV light radiations with
open-chain hindered amines
摘要:
This invention relates to particular polyolefin compositions which contain, as stabilizers against UV-light radiations, open-chain amine compounds which are hindered in the alpha-position by alkyl radicals, said amine compounds corresponding to the following general formula: ##STR1## wherein R', R", R"', R.sup.IV, R.sup.V and R.sup.VI which can be equal or different, are radicals of aliphatic hydrocarbons with a number of C-atoms variable from 1 to 20, or can be hydrogen atoms, n is an integer variable from 2 to 12, and n' is an integer comprised between 1 and 15.
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