Patent ID: 6384269
Filing Date: 2002-05-07
Classification: C07C,C11B

Abstract:
A compound of formula in which the symbols R1, R2, R3 and R4 represent independently from each other a hydrogen atom or a methyl or ethyl group, the symbol X represents an oxygen atom or an alkylene group of formula in which n is an integer from 1 to 3, the symbols R6 and R7 represent each a hydrogen atom or a methyl or ethyl group, and R5 represents an alkyl or alkoxy group from C1 to C4, linear or branched, an alkenyl group from C2 to C4, linear or branched, or a group of formula in which Y has the same meaning as X and R8 is a linear or branched alkyl group from C1 to C4 or a linear or branched alkenyl group from C2 to C4.