Patent ID: 6677451
Filing Date: 2004-01-13
Classification: C07D,C08K,C09K

Abstract:
A composition comprisingA) an organic polymer which is sensitive to oxidative, thermal and/or actinic degradation, and B) a compound of the formula IIIc, IVa or Va â€ƒwherein the linking group R forms, together with the carbon atoms it is directly connected to and the nitrogen atom, a substituted 5-, 6 or 7-membered cyclic ring structure; R1, R2, R3 and R4, independently of each other, are C1-C8alkyl or C1-C5hydroxyalkyl, R1 and R2 together with the carbon atom they are attached to are C5-C12cycloalkyl, or R3 and R4 together with the carbon atom they are attached to are C5-C12cycloalkyl; R5, R6, R7, R8 and R9, independently of each other, are H; C1-C8alkyl; C2-C8alkenyl; C5-C12aryl; C1-C4haloalkyl; an electron withdrawing group selected from the group consisting of â€”CN, nitro, halogen and COOR10 where R10 is C1-C12alkyl, C5-C12cycloalkyl, C7-C9phenylalkyl or phenyl; or C6-C12aryl which is substituted by a group selected from C1-C4alkyl, C1-C4alkoxy and halogen; R20 and R21 are halogen; and R22 and R23 are hydrogen or together are a chemical bond.