Patent ID: 6309719
Filing Date: 2001-10-30
Classification: C08G,Y10T

Abstract:
An amorphous copolyester as determined by differential scanning calorimetry analysis comprising residues of at least one ester forming norbornane compound of formula (I) ##STR3##whereiny is an integer from 0 to 2,R.sub.1, R.sub.2, and R.sub.5 -R.sub.10 are the same or different and are selected from the group consisting of hydrogen and alkyl groups having 1-10 carbon atoms, andR.sub.3 and R.sub.4 are the same or different and are ester forming functional groups, said residues being present in an amount which is at least about 7 mole % and up to about 13 mole %, based upon the total moles of ester forming components of the polyester, or at least about 14 mole % and up to about 26 mole % of either dicarboxylic or diol residues of the polyester, and said copolyester having a melting enthalpy of less than about 2 J/g, as measured by differential scanning calorinetty on second heating of a 5 mg sample at a rate of 10.degree. C./minute.