Patent ID: 6365764
Filing Date: 2002-04-02
Classification: C07F,C08F,Y10S

Abstract:
A compound of formula (IV): wherein each substituent R1, which are the same or different from each other, is a hydrogen atom, a C1-C20 alkyl radical, a C3-C20 cycloalkyl radical, a C2-C20 alkenyl radical, a C7-C20 alkylaryl radical, or C7-C20 arylalkyl radicals, and optionally two adjacent substituents R1 can form a cycle comprising from 5 to 8 carbon atoms and, furthermore, substituents R1 can contain Si or Ge atoms; the E bridging group is selected from >CR32, >SiR32, or >GeR32, wherein each R3, same or different, is a C1-C20 alkyl radical, or the two R3 substituents can be joined to form a cycle comprising up to 8 atoms, at least 4 total carbon atoms being contained in the two R3 substituents.