Reclaim Composition Having Enhanced Properties
AssigneeGold Bond Building Products, LLC
InventorsJoseph J. Bailey, Ratnasabapathy Gurunathan Iyer, Alex Adams
Life of this patent
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Abstract
The present invention is generally directed to a method of processing reclaim gypsum panels and/or pieces thereof. In one aspect, the method may include grinding a reclaim gypsum panel and/or pieces thereof into ground reclaim material and separating the ground reclaim material into two or more reclaim compositions. The two or more reclaim compositions may include a first reclaim composition and a second reclaim composition. A reclaim enhancing additive may be applied to the first reclaim composition such that the reclaim enhancing additive penetrates at least a portion of the thickness of the reclaimed gypsum of the first reclaim composition.
Claims20
A method of processing a reclaim gypsum panel and/or pieces thereof comprising:
- grinding a reclaim gypsum panel and/or pieces thereof into ground reclaim material, the ground reclaim material comprising reclaimed gypsum and reclaimed facing material;
- and
- separating the ground reclaim material into two or more reclaim compositions, the two or more reclaim compositions comprising a first reclaim composition and a second reclaim composition, the first reclaim composition comprising the reclaimed gypsum in an amount of more than about 50 wt. % and the second reclaim composition comprising the reclaimed gypsum in an amount of less than about 50 wt. %;
- wherein a reclaim enhancing additive is applied to the first reclaim composition such that the reclaim enhancing additive penetrates at least a portion of the thickness of the reclaimed gypsum of the first reclaim composition.
A method of processing a reclaim gypsum panel and/or pieces thereof comprising:
- grinding a reclaim gypsum panel and/or pieces thereof into ground reclaim material, the ground reclaim material comprising reclaimed gypsum and reclaimed facing material;
- separating the ground reclaim material into two or more reclaim compositions, the two or more reclaim compositions comprising a first reclaim composition and a second reclaim composition, the first reclaim composition comprising the reclaimed gypsum in an amount of more than about 50 wt. % and the second reclaim composition comprising the reclaimed gypsum in an amount of less than about 50 wt. %;
- and
- calcining the first reclaim composition;
- wherein a reclaim enhancing additive is applied to the first reclaim composition such that the reclaim enhancing additive penetrates at least a portion of the thickness of the reclaimed gypsum of the first reclaim composition.
A method of processing a reclaim gypsum panel and/or pieces thereof comprising:
- grinding a reclaim gypsum panel and/or pieces thereof into ground reclaim material, the ground reclaim material comprising reclaimed gypsum and reclaimed facing material;
- and
- separating the ground reclaim material into two or more reclaim compositions, the two or more reclaim compositions comprising a first reclaim composition and a second reclaim composition, the first reclaim composition comprising the reclaimed gypsum in an amount of more than about 50 wt. % and the second reclaim composition comprising the reclaimed gypsum in an amount of less than about 50 wt. %;
- wherein a reclaim enhancing additive is applied to the reclaim gypsum panel and/or pieces thereof before and/or during the grinding of the reclaim gypsum panel and/or pieces thereof.
Dependencies are inferred from the claim text.