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US 6,673,280 B1Granted
Process for making a board product from scrap materials
AssigneeCertainTeed Corporation
InventorsAlain Yang, Gary Tripp, Mark Trabbold
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method of making a board product with fiber scrap materials, including the steps of adding a binder powder to the fiber scrap materials, processing the scrap fiber into pieces and mixing the fiber scrap materials with the binder powder, distributing the fiber and binder combination across the width of a forming conveyor, and melting the combination to fix the fiber with the binder.
Claims19
A method of making a board product with rotary fiber insulation, comprising the steps of:
- (a) adding a binder powder to the rotary fiber insulation;
- (b) processing the rotary fiber insulation into pieces, and mixing the rotary fiber insulation with the binder powder;
- (c) distributing the fiber and binder combination across the width of a forming conveyor;
- and
- (d) melting the combination to fix the fiber with the binder.
2 more elements
A method of making a board product with fibers of scrap materials, comprising the steps of:
- (a) processing a bale of fibers of scrap materials and additional dry binder, thereby opening the materials into nodules;
- (b) distributing the fibers and additional dry binder combination across the width of a forming conveyor;
- and
- (c) melting and curing the combination to fix the fibers with the binder.
1 more element
Dependencies are inferred from the claim text.