Snamprogetti

Arthur Silvers

Luigi Giuffre

Vittorio Pozzi

Enrico Cernia

Italo Pasquon

A hydrocarbon polymer, such as high density polyethylene, is rendered photodegradable through the introduction into the polymer chain of photosensitive &gt;C= O groups by reacting the polymer with a compound such as NOCl in the heterogeneous phase in an acid environment so that - NO groups are introduced into the polymer chain which are converted into &gt;N--OH groups and then subjecting the resultant polymer to hydrolysis so that the &gt;N--OH groups are converted into photosensitive &gt;C = O groups.

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Milan, Italy

Arthur Silvers