Patent ID: 9428668
Filing Date: 2016-08-30
CPC Classification: C09D

Claim Text:
1. A hydrophilic cross-linked ionic polycaprolactone polymer composition formed by the process of subjecting hydrophobic caprolactone or a hydrophobic caprolactone monomer to a source of ionizing radiation selected from the group consisting of an Electron Acceleration (E beam), Gamma II, Cobolt, X-ray or a source of UV radiation to cross link the hydrophobic caprolactone monomer or hydrophobic caprolactone into an ionic cross linked polycaprolactone polymer consisting of a soluble component part and an insoluble component part in a gel fraction % of soluble to insoluble parts, adjusting the duration of ionizing radiation and/or the intensity of the radiation until the concentration of the soluble component part is above at least about 65% by weight of the cross linked polymer wherein the cross linked polycaprolactone polymer is converted from hydrophobic polycprolactone to an ionic hydrophilic polycaprolactone and wherein the soluble component part is soluble in a solvent selected from the group consisting of methyl ethyl ketone (“MEK”), ethyl acetate, tetetrahydrafuran and trichloromethane.