Patent · US Active

Method for recycling floor coverings

US9284431B2 · kind B2 · utility

1Cited by

5References

20Claims

0Family size

Assignee

CLARIANT INTERNATIONAL LTD · CH

Inventors

Gerd Hohner · Gersthofen, DE
Christian Steib · Cologne, DE
Timo Herrlich · Affing, DE

Key dates

Filing date	Jan 24, 2012
Grant date	Mar 15, 2016
Priority date	—
Expiry date	Jan 24, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/62
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a solvent-based separation method for the total material recycling of materials used in nonwoven, woven, and tufted wares into the individual material components thereof sorted by type. At least one of the materials contains a polyolefin wax. As a solvent and/or swelling agent, halogen-free, aliphatic hydrocarbons or aromatic hydrocarbons or a mixture of one or several of said solvents are used.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.