Patent ID: 8901347

Claim:
A diisocyanate or diamine compound having the structure of any of formulas (1), (2), (16) or (17): wherein each X represents a member independently selected from the group consisting of: —CH 2 COO— (glycolic acid moiety); —CH(CH 3 )COO— (lactic acid moiety); —CH 2 CH 2 OCH 2 COO— (dioxanone moiety); —CH 2 CH 2 CH 2 CH 2 CH 2 COO— (caprolactone moiety); —(CH 2 ) y COO— where y is one of the numbers 2, 3, 4 and 6-24 inclusive; and —(CH 2 CH 2 O) z′ CH 2 COO— where z′ is an integer between 2 and 24, inclusive; wherein Rn represents one or more substituents selected from the group consisting of hydrogen, alkoxy, phenoxy, benzyloxy, —CHO, halogen, carboxylic acid and nitro, which are attached directly to the aromatic ring or indirectly via an alkylene chain; and wherein p is an integer between 1 and 4, inclusive.