prov:value
| - A process for preparing a cycloolefin homopolymer or copolymer by polymerization of from 0.1 to 100% by weight, based on the total amount of monomers, of at least one polycyclic olefin of the formulae I, II, III, IV, V or VI ##STR15## ##STR16## in which R1, R2, R3, R4, R5, R6, R7 and R8 are identical or different and are a hydrogen atom or a C6 -C10 -aryl radical or a C1 -C8 -alkyl radical, with t
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