Patent ID: 7005459

Claim:
A composition comprising at least three components: a polymer base material wherein the polymer base is a thermoplastic; a desiccating agent; a channeling agent, wherein the channeling agent is a material that is melted, during processing of the composition, and is a material that forms passages throughout a polymer base material, after processing of the composition; and wherein: a) the affinity between the material that is the channeling agent and the desiccating agent is greater than between the polymer base material and the desiccating agent; b) the desiccating agent is entrained in the polymer base material; c) the polymer base material is a material, prior to processing of the composition, that more greatly resists diffusion of moisture than does the material that is the channeling agent; d) the passages transmit moisture to the entrained desiccating agent in the polymer base material; and e) the composition has at least three phases.