초록 ▼

The present invention includes processes and resulting structures for producing moisture absorbing desiccant entrained polymers. A polymer is caused to assume a molten state, typically by applying heat and melting the polymer. To achieve certain results in the hardened end product, such as rigidity

The present invention includes processes and resulting structures for producing moisture absorbing desiccant entrained polymers. A polymer is caused to assume a molten state, typically by applying heat and melting the polymer. To achieve certain results in the hardened end product, such as rigidity and durability, the polymer normally acts as a moisture barrier in a solidified state, both before and after melting. A desiccating agent is blended into the polymer so that the desiccating agent is distributed within the polymer. A channeling agent is also blended into the polymer so that it is distributed within the polymer. The blending of the components is preferably done before the polymer is caused to assume a molten state. Together, the polymer, desiccating agent and channeling agent create a blended mixture. The mixture is solidified so that the channeling agent forms passages in the mixture through which moisture is communicable to desiccating agent that is entrained within the mixture. The solidified mixture may be used to form plug type inserts and liners for closed containers, or it may be used for producing laminated sheeting employed as package wrap.

대표청구항 ▼

[ I claim:] [1.] An article of manufacture comprising a shaped article formed by:(a) mixing a polymer, a desiccating agent and a channeling agent, wherein the channeling agent is a hydrophilic material;(b) heating the mixture at a temperature at least above the melt point of the channeling agent so

[ I claim:] [1.] An article of manufacture comprising a shaped article formed by:(a) mixing a polymer, a desiccating agent and a channeling agent, wherein the channeling agent is a hydrophilic material;(b) heating the mixture at a temperature at least above the melt point of the channeling agent so that the desiccating agent and channeling agent are distributed within the polymer;(c) cooling the mixture to form passages containing the channeling agent through which moisture is communicable with the desiccating agent.