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.
Claims16
1-18. (canceled)
The method of claim 18 in which paper coated with a biodegradable coating is applied to said batt.
The method of claim 1 in which:
- said fibrous batt is an air laid batt.
The method of claim 23 in which said large paper particles as provided have a particle size distribution as follows:
- Size (mm)
- Weight % Range
- Specific Example
- 10 mm or less
- Less than 5%
- 4.70%
- 10-20 mm
- 50-60%
- 56.80%
- 20-30 mm
- 20-30%
- 22.04%
- 30-40 mm
- 10-20%
- 12.44%
- 40 mm or greater
- Up to 5%
- 4.01%
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.
An insulated container insulated with an insulation batt comprised of large paper particles, at least 90% of which are greater than 10 mm in diameter;
- 5% or less binder fibers, which have a length of at least 20 mm.
Dependencies are inferred from the claim text.