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US 12,565,371 B2Granted
Insulation material and method of making insulation material
AssigneeMP Global Products, L.L.C.
InventorsAlan B. Collison, Reid Borgman
Life of this patent
Estimating the term…
Abstract
A repulpable insulation material includes a batt formed of a mixture of thermoplastic binder fibers and cellulose fibers bound together by the thermoplastic binder fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the batt, the repulpable insulation material having a weight within a range from 1000 GSM to 1600 GSM, wherein subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.
Claims20
An insulation material comprising:
- a batt formed of a mixture of thermoplastic binder fibers and cellulose fibers bound together by the thermoplastic binder fibers, the thermoplastic binder fibers representing between about 0.5% and about 25% by weight of the batt, the batt having a density that is less than about 10 pound per cubic foot, the batt having a thickness that is greater than or equal to about 1/16 of an inch, wherein the insulation material is repulpable.
A method for producing an insulation material, the method comprising:
- mixing cellulose reinforcement fibers with thermoplastic binder fibers to form a mixture, the thermoplastic binder fibers representing between about 0.5% and about 25% by weight of the mixture;
- applying heat to the mixture to melt the thermoplastic binder fibers;
- and
- allowing the mixture to cool such that the thermoplastic binder fibers bind the cellulose reinforcement fibers together to form a batt, the batt having a density that is less than about 10 pound per cubic foot, the batt having a thickness that is greater than or equal to about 1/16 of an inch, wherein the insulation material is repulpable.
1 more element
An insulation liner comprising:
- a first paper layer;
- and
- a cellulose fiber pad, the cellulose fiber pad including thermoplastic binder fibers and cellulose reinforcement fibers bound together by the thermoplastic binder fibers, the thermoplastic binder fibers representing between about 0.5% and about 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 the thermoplastic binder fibers are bicomponent fibers made of at least two materials selected from a group consisting of polyvinyl alcohol, polyethylene, polyester, polypropylene, and mixtures thereof, wherein the insulation liner is repulpable.
Dependencies are inferred from the claim text.