Recyclable single polymer floorcovering article
AssigneeMilliken & Company
InventorsDale R. Williams, Joseph Wallen, Ty Grant Dawson, Nils David Sellman, Jr., Daniel Taylor McBride, Joseph R. Royer, John L. Sanchez
Life of this patent
Estimating the term…
Abstract
This invention relates to tufted floorcovering articles, including carpet tiles and broadloom carpet. In particular, this invention relates to tufted floorcovering articles made from the family of polymers known as polyester. Specifically, this invention relates to tufted carpet tile products made from polyester. The polyester carpet tiles meet commercial performance specifications and are fully end-of-life recyclable.
Claims2
A process for recycling a polyester floorcovering article comprising the steps of:
- (a) providing a floorcovering article comprised of substantially 100% polyester material, wherein the 100% polyester material includes a plurality of face yarns tufted into a primary backing fabric held in place by an adhesive layer that further adheres a secondary backing to the floorcovering article;
- (b) shredding the floorcovering article;
- (c) feeding the floorcovering article into a plast agglomerator;
- (d) heating the floorcovering article by friction to just below the melting temperature of the article;
- (e) forcing the floorcovering article of step “d” through a die;
- cutting the floorcovering article of step “e” into granules with a high bulk density;
- and
- (g) using the granules as a feedstock for other processes to make polyester articles.
A process for recycling a polyester floorcovering article comprising the steps of:
- (a) providing a floorcovering article comprised of substantially 100% polyester material, wherein the 100% polyester material includes a plurality of face yarns tufted into a primary backing fabric held in place by an adhesive layer that further adheres a secondary backing to the floorcovering article;
- (b) marking the floorcovering article with a resin identification code according to ASTM D7611/D7611M;
- (c) placing the floorcovering article in a recycle bin according to the resin identification code present on the floorcovering article;
- and
- (d) allowing the floorcovering article to be recycled for use in new products.
Dependencies are inferred from the claim text.