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US 10,926,939 B2Granted
Method of making an insulation material and an insulated mailer
AssigneeMP Global Products, L.L.C.
InventorsAlan B. Collison, Reid Borgman
Life of this patent
Estimating the term…
Abstract
A method and system for producing an insulated mailer and an insulated box having an insulative paper fiber pad substructure with a density of less than about 10 pounds per cubic foot. The insulative paper fiber pad has entangled reinforcement fibers. A method of forming an insulative paper fiber pad using recycling-compatible or water soluble adhesive and paper layers is provided.
Claims21
A repulpable insulation material comprising:
- a batt formed of a mixture of cellulose fibers and thermoplastic binder fibers distributed substantially randomly within the cellulose fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the batt, the batt having a thickness that is greater than or equal to about 1/16 of an inch, the thermoplastic binder fibers being adhered to the cellulose fibers, wherein subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.
A method for producing an insulation material, the method comprising:
- mixing cellulose reinforcement fibers with thermoplastic binder fibers to distribute the thermoplastic binder fibers substantially randomly within the cellulose reinforcement fibers to form a mixture;
- and
- applying heat to the mixture to melt the thermoplastic binder fibers to bind the thermoplastic binder fibers to the cellulose reinforcement fibers to form a batt, the thermoplastic binder fibers making up about 0.5% to about 25% by weight of the batt, the batt having a thickness that is greater than or equal to about 1/16 of an inch, wherein subjecting the insulation material to a repulpability test produces a fiber yield of greater than 85%.
A repulpable insulation liner comprising:
- a first paper layer;
- and
- a cellulose fiber pad coupled to the first paper layer, the cellulose fiber pad having cellulose reinforcement fibers interlocked with thermoplastic binder fibers distributed substantially randomly within the cellulose reinforcement fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the cellulose fiber pad, the cellulose fiber pad having a thickness that is greater than or equal to about 1/16 of an inch, wherein subjecting the repulpable insulation liner to a repulpability test produces greater than 85% fiber yield.
Dependencies are inferred from the claim text.