| abstract |
The hydantoinvinyl ether of formula I **(Formula)** in which R1 means hydrogen or an organic radical, R2 means an alkylene group with 1 to 6 carbon atoms or the (-alkylene-O-)n-alkylene group -, where the alkylene groups contain from 1 to 6 carbon atoms and n is a number from 1 to 6, and R3 and R4, independently of one another, each denote hydrogen, an alkyl group with 1 to 6 carbon atoms or an aryl group or together mean an alkylene group. |