Polymeric Materials and Articles Manufactured There From

A method for manufacturing a three-dimensional object, the method comprising steps of:

• a) providing a set of digital voxels;
• and
• b) sequentially creating asset of actual voxels corresponding to the set of digital voxels, wherein at least one of the actual voxels comprises a water-soluble poly urea derived from
• i) a polymer or mixture of polymers of the following structure
• where
• R1 is selected from the group consisting of:
• —OH, —NH2, and
• R2 is selected from the group consisting of:
• —(C2H4)NH2, C1-C6 alkyl, —H, and
• wherein A is between about 10 and about 300,
• and (B+C)/A is between about 0 and about 0.6;
• and
• ii) a linker selected from the group consisting of:
• urea, methylene diphenyl diisocyanate, toluene diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate and mixtures thereof;
• wherein at least one R1 or R2 group contains nitrogen and the molar ratio of nitrogen containing R1 and R2 groups in (a) to (b) is about 1:1.