| abstract |
Disclosed are weatherable polyester soft block copolymerncompositions comprising copolymers of resorcinol or alternativelynphenol, aromatic dicarboxylic acid, and an aliphatic dicarboxylic acidnbased structural units. These polyester soft block copolymersncomprise a substantial proportion of direct linkages between thenresorcinol or alternatively the phenol, and the aromatic dicarboxylicnacid based structural units, the balance of the linkages being betweennresorcinol and the aliphatic dicarboxylic acid based structural units. |