Patent ID: 8835494

Claim:
A compound of formula (I): wherein: X is a halogen selected from the group consisting of F, Cl, Br, and I; R and R 1 are the same and are (C 1 -C 4 )-alkyl or, together with the carbon atom to which they are bonded, form a 3 to 6 carbon atom saturated ring; R 2 represents one or more halogen atoms; Q is a group Q 1 or Q 2 : wherein: R 3 , R 5 and R 6 are each independently (C 1 -C 4 )-alkyl, (C 2 -C 16 )-alkanoyl, or a bond connecting the group Q 1 or Q 2 to the rest of the molecule, with the condition that one and only one of R 3 , R 5 and R 6 is a bond; R 4 and R 7 are each independently H, (C 1 -C 4 )-alkyl, and (C 2 -C 16 )-alkanoyl.