Patent ID: 6468718
Filing Date: 2002-10-22
Classification: C08F,C09D,G03F

Abstract:
A composition for radiation absorbing coating which contains the radiation absorbing polymer which absorbs a predetermined wavelength radiation and which contains at least both a recurring unit represented by the following formula 1 and a recurring unit represented by the following formula 2: whereinR1 and R2 independently represent a hydrogen atom, or an alkyl group, and R3 represents an organic group having at least one carbonyl group; whereinR4 and R5 independently represent a hydrogen atom, an alkyl group, or a carboxyl group, and Y represents a group having an organic chromophore having an absorption at a predetermined wavelength radiation, said organic chromophore being bonded directly or through a linkage group to the carbon atom constituting the main chain, wherein said recurring unit represented by the formula 1 is a recurring unit represented by (a) the following formula 4: whereinR1, R2, R8, R9 and R10 represent independently a hydrogen atom, or an alkyl group, or (b) the following formula 5: whereinR1, R2, R12, R13 and R14 represent independently a hydrogen atom, or an alkyl group, and R11 represents a divalent group.