Residual product weight testing method
AssigneeAmcor Flexibles North America, Inc.
InventorsAustin M. Walgurski, Michele C. Payant, Joseph M. Oster
Life of this patent
Estimating the term…
Abstract
Provided are methods for measuring residual amount of product remaining on a plastic product package for qualification of entry into a recycling program, the method including: determining whether a residual amount of product from the plastic product package is less than a qualifying amount for entry into the recycling program, where the plastic product package comprises a plastic package and the amount of residual product.
Claims20
A method for measuring an amount of residual product remaining on a plastic product package, the method comprising:
- a first step of removing substantially all residual product from a plastic product package that has been emptied of product;
- a second step of weighing the plastic product package having the amount of residual product to obtain an initial weight (W1);
- a third step of rinsing the plastic product package having the amount of residual product with a non-polar solvent;
- an optional fourth step of drying the plastic product package having the amount of residual product after rinsing with a non-polar solvent;
- a fifth step of rinsing the plastic product package having the amount of residual product with water;
- a sixth step of drying the plastic product package having the amount of residual product after rinsing with water for a drying period;
- and
- a seventh step of weighing the rinsed and dried plastic product package to obtain a final weight (W2);
- and
- an eight step of determining the percent residual product weight using the formula:
- percent
-
- residual
-
- product
-
- weight
- =
- W
- 1
- -
- W
- 2
- W
- 1
- ×
- 100
-
- %
- .
A method for measuring an amount of residual product remaining on a plastic product package for qualification of entry into a recycling program, the method comprising:
- emptying the plastic product package as in normal course of use;
- weighing the plastic product package having the residual amount of product to obtain an initial weight (W1);
- rinsing the plastic product package with one or more solvents to remove substantially all of the residual amount of product from the plastic product package;
- and
- weighing the rinsed plastic product package to obtain a final weight (W2);
- and
- determining a percent residual product weight using the formula:
- percent
-
- residual
-
- product
-
- weight
- =
- W
- 1
- -
- W
- 2
- W
- 1
- ×
- 100
-
- %
- .
Dependencies are inferred from the claim text.