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US 6,379,489 B1Granted
Carpet reclamation process
AssigneeMonsanto Company
InventorsRoger Joseph Goulet, Peter Michael Ramsden, Jerauld Lee Dickerson, Susan Ramilo Williams
Life of this patent
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Abstract
A process for the reclamation of base materials from carpet is disclosed. The process includes contacting the carpet with a composition which contains a chemical softening agent for the binder material in the carpet and separating the carpet pile from the carpet backing(s).
Claims7
A process for reclaiming carpet components, said carpet including a backing and carpet pile disposed within said backing and secured to said backing with a binder, said process comprising:
- (a) reducing the size of said carpet to form a reduced carpet material including pile material, backing material and binder material attached to at least one of said pile material and backing material;
- (b) combining at least a portion of the reduced carpet material with a composition including a chemical softening agent for the binder to form a mixture;
- and
- (c) applying to the mixture shear forces under turbulent conditions in an amount sufficient to promote detachment of the binder from at least one of said pile material and said backing material.
1 more element
Dependencies are inferred from the claim text.