Patent ID: 11905359
Assignee: EVOCO LIMITED
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 18:
19. An article of manufacture comprising a polyurethane elastomer derived from at least (a) an organic diisocyanate, (b) a polyester, (c) a chain extender, (d) a crosslinker, (e) a plasticizer, (f) a surfactant, (g) a foaming component, (h) a bio-additive additive comprising eggshell, and (i) a colorant, wherein said polyester comprises one or more of: poly(1,2-ethylene-succinate), poly(1,3-propylene-succinate), and copoly(1,3-propylene-succinate)-copoly(1,2-propylene-succinate); and wherein said elastomer has a hardness value of from about 15 Asker C to about 60 Asker C, a tensile strength of from about 1 MPa to about 10 MPa, a resilience of from about 25 percent to about 60 percent, an elongation at break of from about 150 percent to about 700 percent, and a tear strength of from about 2 Newtons/millimeters to about 4 Newtons/millimeters.