Biodegradable single-phase cohesive hydrogels

A biodegradable single-phase cohesive hydrogel, comprising:

• a homogenous mixture of 2 to 5 identical or different polymers interpenetrating each other in a single phase, wherein:
• the polymers are independently crosslinked prior to interpenetration by mixing;
• and
• the crosslinked polymers are insoluble in water and miscible with each other.

A process of preparing a biodegradable single-phase cohesive hydrogel, comprising:

• independently crosslinking 2 to 5 polymers to obtain 2 to 5 identical or different crosslinked polymers;
• and
• interpenetrating the crosslinked polymers by mixing to obtain a homogenous mixture of the crosslinked polymers in a single phase,
• wherein the crosslinked polymers are insoluble in water and miscible with each other.