Paperboard products with improved rigidity and moisture barrier properties

A paperboard product comprising at least one modified starch and at least one crosslinker, wherein the paperboard product has an elliptically-shaped outer perimeter and further comprises:

• the at least one modified starch comprises at least one amylopectin present in an amount ranging from 2% to 15% by weight of the paperboard product,
• a substantially planar bottom region;
• a substantially frustoconical sidewall extending upward and outward from an outer periphery of the bottom region;
• an annular inner brim portion contiguous with a radially outer extent of the frustoconical sidewall;
• and
• an annular outer frustoconical brim portion contiguous with a radially outer extent of the annular inner brim portion, wherein
• a first arcuate portion interconnects the bottom region and a radially inner end of the frustoconical sidewall, a second arcuate portion interconnects the radially outer extent of the frustoconical sidewall and the annular inner brim portion, and a third arcuate portion interconnects the radially outer extent of the annular inner brim portion and the annular outer frustoconical brim portion,
• the annular outer frustoconical brim portion includes a distal concave lip portion around an outer periphery of the product,
• the frustoconical sidewall extends upward and outward from the bottom region at an angle of 22.0±0.5 degrees from a vertical line parallel to a central axis of the product,
• the annular inner brim portion slopes downward and outward from the radially outer extent of the frustoconical sidewall at an angle that is 4.0±0.5 degrees from a horizontal line parallel to the bottom region, and
• the annular outer frustoconical brim portion slopes downward more steeply than the downward slope of the annular inner brim portion, extending from the radially outer extent of annular inner brim portion at an angle that is 40.0±0.5 degrees from the vertical line parallel to the central axis of the product.

A paperboard product comprising at least one modified starch and at least one crosslinker, wherein the paperboard product has a circular-shaped outer perimeter and further comprises:

• the at least one modified starch comprises at least one amylopectin present in an amount ranging from 2% to 15% by weight of the paperboard product,
• a substantially planar bottom region;
• a frustoconical sidewall extending upward and outward from an outer periphery of the bottom region;
• an annular inner brim portion contiguous with a radially outer extent of the frustoconical sidewall;
• and
• an annular outer frustoconical brim portion contiguous with a radially outer extent of the annular inner brim portion, wherein
• a first arcuate portion interconnects the bottom region and a radially inner end of the frustoconical sidewall, a second arcuate portion interconnects the radially outer extent of the frustoconical sidewall and the annular inner brim portion, and a third arcuate portion interconnects the radially outer extent of the annular inner brim portion and the annular outer frustoconical brim portion,
• the annular outer frustoconical brim portion includes a distal concave lip portion around an outer periphery of the product,
• the frustoconical sidewall extends upward and outward from the bottom region at an angle of 24.0±0.5 degrees from a vertical line parallel to a central axis of the product,
• the annular inner brim portion slopes downward and outward from the radially outer extent of the frustoconical sidewall at an angle that is 4.0±0.5 degrees from a horizontal line parallel to the bottom region, and
• the annular outer frustoconical brim portion slopes downward more steeply than the downward slope of the annular inner brim portion, extending from the radially outer extent of annular inner brim portion at an angle that is 40.0±0.5 degrees from the vertical line parallel to the central axis of the product.