Invention Grant
US09114900B2 Paper cup seal 有权
纸杯密封

Paper cup seal
Abstract:
A paper cup having a cup side wall bonded to a portion of a paper cup bottom wherein a seal promoter is present between at least a portion of the cup side wall and a portion of the cup bottom. At least a portion of the cup side wall and a portion of the cup bottom being coated with polyethylene such that the seal promoter is applied to a portion of at least one of the polyethylene coated surfaces. The present invention is also directed to a method of producing a cup having a seal promoter applied to an at least partially polyethylene treated cup side wall and/or cup bottom.
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