Patent ID: 11912488
Assignee: GENERAL MILLS, INC.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. An article comprising:
a foodstuff; and
a package containing the foodstuff, the package including a multilayer moisture barrier having a first outer layer, a second outer layer, and first, second, and third inner layers disposed between the first and second outer layers, the first inner layer adjacent the first outer layer, the second inner layer adjacent the second outer layer, and the third inner layer disposed between the first and second,
wherein the first and second inner layers each comprise from 0.1 wt. % to 12 wt. % of a desiccant in the form of desiccant particles having a size of less than 50 nanometers dispersed in a polymeric matrix, and the desiccant comprises silica particles,
wherein the polymeric matrix of each of the first and second inner layers defines a plurality of cavities, wherein at least some of the cavities have one or more of the desiccant particles in communication therewith, at least some of the desiccant particles are positioned with each particle in communication with multiple cavities of the plurality of cavities, wherein the first and second inner layers further comprise a surfactant particle, and the surfactant particle is associated with at least one of the desiccant particles,
wherein the first and second inner layers are each an oriented layer comprising biaxally oriented polypropylene, biaxally oriented polyethylene or biaxally oriented polyethylene terephthalate, and is configured to maintain a desired range of moisture content within the package; and
the third inner layer is substantially free of a desiccant.