Abstract: A multilayer film comprises first, second, and third layers. The second layer is directly adhered to the first and third layers. The first layer comprises at least about 40 wt % of one or more modified polyamides. The second layer comprises at least about 40 wt % of one or more unmodified polyamides. The third layer comprises at least about 40 wt % of one or more selected tie polymers. The film may comprise one or more UV light absorbers. The film has good intra-film bond strength.

Abstract: A method of linking source units of food with product items that include at least a portion of one or more of the source units of food, where a conversion process produces a plurality of product items from a plurality of source units (e.g., at a meat processing plant). A conversion algorithm is created to estimate within a desired confidence level a range of the amount of time required by the conversion process to produce a product item from one or more of the source units of food. A range of an amount of conversion time required to produce a selected product item is estimated by applying the conversion algorithm. The estimated range amount of conversion time for the selected product item is subtracted from the time of exit from the conversion process for the selected product item to generate an estimated time range of entry. Each source unit having a time of entry into the conversion process within the estimated time range of entry is identified.

Abstract: A method of linking source units of food with product items that include at least a portion of one or more of the source units of food, where a conversion process produces a plurality of product items from a plurality of source units (e.g., at a meat processing plant). A conversion algorithm is created to estimate within a desired confidence level a range of the amount of time required by the conversion process to produce a product item from one or more of the source units of food. A range of an amount of conversion time required to produce a selected product item is estimated by applying the conversion algorithm. The estimated range amount of conversion time for the selected product item is subtracted from the time of exit from the conversion process for the selected product item to generate an estimated time range of entry. Each source unit having a time of entry into the conversion process within the estimated time range of entry is identified.