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US 11,827,439 B2Granted
Repulpable container insulation products and methods of making and using same
AssigneeCellulose Material Solutions, LLC
InventorsMatthew Henderson, Kevin Chase
Life of this patent
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Abstract
Container insulation including a batt comprised of large paper particles, at least 90% of which by weight are greater than 10 mm in diameter. Less than 5% by weight binder fibers are used, which have a length of at least 20 mm. Most preferably, no binder fibers are used. Where the batts are faced with paper, the paper is coated with a biodegradable coating. The resulting product is repulpable and recyclable in accordance with Fiber Box Association (FBA) testing protocols.
Claims10
A method for forming a container insulation batt comprising:
- providing large paper particles, at least 90% of which are greater than 10 mm in diameter;
- mixing said large paper particles with 5% or less binder fibers, which have a length of at least 20 mm;
- compressing said large paper particles and said binder fibers into a container insulation batt.
A method for forming a container insulation batt comprising:
- forming paper particles with an attrition mill with a plate spacing of about ½″;
- applying moisture in the form of water and steam to said paper after it is milled in said attrition mill;
- sizing the paper particles produced by said attrition mill such that at least 90% of the said particles to be used in a batt are greater than 10 mm in diameter;
- 5% or less binder fibers, which have a length of at least 20 mm;
- compressing said paper particles into an insulating batt.
2 more elements
Dependencies are inferred from the claim text.