| abstract |
Polymers of the general formula In wherein each of R 1 and R 2 , which may be the same or different, represents a hydrogen atom or a methyl group; n wherein -A(CH 2 0H)y represents a straight or branched chain polymeric entity and contains plurality of ester linkages and, n wherein y hasthe value 0 or a positive integral value and z has a positive integral value, (y + z) being from 2 to 8. n The new polymers may be used in the production of polyureas and polyurea - polyurethanes. |