DE69230960T2 - Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich - Google Patents

Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich

Info

Publication number
DE69230960T2
DE69230960T2 DE69230960T DE69230960T DE69230960T2 DE 69230960 T2 DE69230960 T2 DE 69230960T2 DE 69230960 T DE69230960 T DE 69230960T DE 69230960 T DE69230960 T DE 69230960T DE 69230960 T2 DE69230960 T2 DE 69230960T2
Authority
DE
Germany
Prior art keywords
nylon
recovery
epsilon caprolactam
containing carpet
carpet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
DE69230960T
Other languages
English (en)
Other versions
DE69230960D1 (de
Inventor
Thomas F Corbin
Edward A Davis
Jack A Dellinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Corp
Original Assignee
BASF Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24887218&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69230960(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BASF Corp filed Critical BASF Corp
Application granted granted Critical
Publication of DE69230960D1 publication Critical patent/DE69230960D1/de
Publication of DE69230960T2 publication Critical patent/DE69230960T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams
    • C07D201/12—Preparation of lactams by depolymerising polyamides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
    • C08G69/14—Lactams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
DE69230960T 1991-06-21 1992-02-25 Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich Revoked DE69230960T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/718,720 US5169870A (en) 1991-06-21 1991-06-21 Reclaiming ε-caprolactam from nylon 6 carpet

Publications (2)

Publication Number Publication Date
DE69230960D1 DE69230960D1 (de) 2000-05-31
DE69230960T2 true DE69230960T2 (de) 2000-08-17

Family

ID=24887218

Family Applications (2)

Application Number Title Priority Date Filing Date
DE199292103184T Pending DE522235T1 (de) 1991-06-21 1992-02-25 Verfahren zur rueckgewinnung von epsilon-caprolactam aus nylon-6-haltigem teppich.
DE69230960T Revoked DE69230960T2 (de) 1991-06-21 1992-02-25 Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE199292103184T Pending DE522235T1 (de) 1991-06-21 1992-02-25 Verfahren zur rueckgewinnung von epsilon-caprolactam aus nylon-6-haltigem teppich.

Country Status (5)

Country Link
US (1) US5169870A (de)
EP (1) EP0522235B1 (de)
JP (1) JPH05117441A (de)
CA (1) CA2064658C (de)
DE (2) DE522235T1 (de)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5977193A (en) * 1991-06-21 1999-11-02 Basf Corporation Reclaiming epsilon-caprolactam from nylon 6 carpet
US5370757A (en) 1991-08-30 1994-12-06 Basf Corporation Process for manufacturing substantially 100% nylon 6 carpet
US5326791A (en) * 1991-12-20 1994-07-05 Exxon Research And Engineering Company Process for separation of hydrolyzable from non-hydrolyzable waste plastics for recovery of starting materials and other conversion processes, respectively
US5241066A (en) * 1992-06-25 1993-08-31 Basf Corporation Method of recovering caprolactam from mixed waste
ES2106897T3 (es) * 1993-01-28 1997-11-16 Wiltzer Karl Heinz Proceso y dispositivo para la elaboracion de poliamidas 6 a partir de residuos de poliamida.
US5294707A (en) * 1993-02-25 1994-03-15 Basf Corporation Semi-continuous depolymerization of nylon 6 polymer
US5294384A (en) * 1993-03-25 1994-03-15 Monsanto Company Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
US5498667A (en) * 1993-03-25 1996-03-12 Monsanto Company Thermoplastic composition and method for producing thermoplastic composition by melt blending carpet
US5310905A (en) * 1993-04-14 1994-05-10 E. I. Du Pont De Nemours And Company Conversion of nylon 6 and/or nylon 6,6 to monomers
DK0627417T3 (da) * 1993-06-04 2000-03-13 Dsm Nv Genvinding af E-caprolactam fra tæppeaffald
DE4421239A1 (de) * 1993-06-17 1994-12-22 Inventa Ag Verfahren zur Aufbereitung von hochmolekularem Polyamid 6 sowie nach diesem Verfahren hergestelltes Repolymerisat
WO1995006684A1 (en) * 1993-08-30 1995-03-09 Masland Industries, Inc. Recycling of carpet scrap
US5458740A (en) * 1994-03-04 1995-10-17 Basf Corporation Process for the purification of crude caprolactam
DE4407222A1 (de) * 1994-03-04 1995-09-07 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Oliogo- und/oder Polymeren des Caprolactams
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
DE4416466A1 (de) * 1994-05-10 1995-11-16 Zimmer Ag Trennverfahren für Teppichböden
US6379489B1 (en) * 1994-09-26 2002-04-30 Monsanto Company Carpet reclamation process
US5916410A (en) * 1994-09-29 1999-06-29 Monsanto Company Carpet reclamation process
US5565590A (en) * 1994-11-07 1996-10-15 Eastman Chemical Company Process for recycling amino-carboxylic acid waste materials into amido-carboxylic acids
US5535945A (en) * 1995-02-27 1996-07-16 Basf Corportion Carpet recycling process and system
US5849804A (en) * 1995-06-29 1998-12-15 Basf Corporation Recovery of polyamides from composite articles
US5656757A (en) * 1995-08-10 1997-08-12 Alliedsignal Inc. Monomer recovery from multi-component materials
US5681952A (en) * 1995-12-08 1997-10-28 Alliedsignal Inc. Process for depolymerizing nylon-containing waste to form caprolactam
US5948908A (en) * 1996-03-18 1999-09-07 Alliedsignal Inc. Process for depolymerizing polycaprolactam processing waste to form caprolactam
US5859071A (en) * 1996-04-15 1999-01-12 Lear Corporation Recycling of carpet scrap
JP2002507231A (ja) * 1997-06-27 2002-03-05 ザ、プロクター、エンド、ギャンブル、カンパニー 脂肪酸を含有する構造化された非水性液体洗剤組成物
US5990306A (en) 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
DE19753377B4 (de) * 1997-12-02 2008-07-10 Lurgi Zimmer Gmbh Verfahren zur Herstellung von ε-Caprolactam aus Extraktwasser der PA-6-Synthese
US6667360B1 (en) 1999-06-10 2003-12-23 Rensselaer Polytechnic Institute Nanoparticle-filled polymers
US6241168B1 (en) 1999-06-10 2001-06-05 Lear Corporation Recycling of carpet scrap and compositions employing ultralow density polyethylene (ULDPE)
EP1104753A1 (de) * 1999-12-03 2001-06-06 Dsm N.V. Verfahren zur Wiedergewinnung der Monomerbestandteile von Nylon aus Teppich
US7659320B2 (en) * 2000-11-01 2010-02-09 Interface, Inc. Method for extracting nylon from waste materials
US7045590B2 (en) * 2001-02-14 2006-05-16 Mohawk Brands, Inc. Use of waste carpet as filler
US6786988B1 (en) * 2001-02-14 2004-09-07 Mohawk Brands Inc. Use of waste carpet as filler
US7550516B2 (en) 2001-05-10 2009-06-23 Interface, Inc. Method for extracting nylon from waste materials
US6814826B1 (en) 2003-03-03 2004-11-09 Mohawk Brands, Inc. Use of waste carpet as backing filler for floor coverings
CA2527410A1 (en) * 2003-05-27 2004-12-09 Environmental Technologies Capital Partners, Llc Liquid fertilizer incorporating biosolids and high concentrations of ammonium
US7887726B1 (en) 2006-11-24 2011-02-15 Novana, Inc. Self-reinforced composite made of recycled materials and process of making the same
US8110131B1 (en) 2006-12-06 2012-02-07 Dell Orco Sergio Carpet reclamation system
US8017662B2 (en) 2007-09-20 2011-09-13 Universal Fibers, Inc. Method of separation and cleaning of post consumer carpet face yarn from carpet backing and yarn product produced therefrom
US20090300982A1 (en) * 2008-06-05 2009-12-10 Chemical Products Corporation Calcium carbonate soil amendment and industrial filler derived from carpet backing
CA2675906C (en) 2008-08-20 2014-02-04 Mohawk Carpet, Llc Filler recovery processes
CH700545A2 (de) * 2009-03-05 2010-09-15 List Holding Ag Verfahren und Vorrichtung zur kontinuierlichen oder batchweisen Depolymerisierung von Polycaprolaktam.
US8113448B2 (en) 2009-04-22 2012-02-14 Keating Joseph Z Methods of recycling carpet components and carpet components formed thereform
US8360348B2 (en) 2010-08-12 2013-01-29 Frank Levy Method and apparatus for recycling carpet
US8870104B2 (en) 2011-01-13 2014-10-28 Frank Levy Method for separating carpet fibers
US8864057B2 (en) 2011-11-04 2014-10-21 Shaw Industries Group, Inc. Processes for recycling carpet and products of such processes
US9193865B2 (en) 2012-09-27 2015-11-24 E I Du Pont De Nemours And Company Polyamides having improved anti-delamination
US9023903B2 (en) 2012-09-27 2015-05-05 E I Du Pont De Nemours And Company Reinforced polyamides having improved anti-delamination
US9109114B2 (en) 2012-09-27 2015-08-18 E I Du Pont De Nemours And Company Polyamides having improved anti-delamination
DE102012220498A1 (de) * 2012-11-09 2014-05-15 Aquafil Engineering Gmbh Verfahren und Vorrichtung zur Behandlung von Polymeren
US20140272262A1 (en) 2013-03-12 2014-09-18 Milliken & Company Recyclable Single Polymer Floorcovering Article
US9221197B2 (en) 2013-07-16 2015-12-29 Hall Patents, LLC Methods and systems for flooring material recycling
FR3101351B1 (fr) * 2019-09-26 2022-08-19 Arkema France Procédé de recyclage conjoint d’articles composites à base de matrice de polymère thermoplastique
WO2023187045A1 (en) * 2022-03-30 2023-10-05 Basf Se Process for hydrolytically depolymerizing a polyamide

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518416A (de) *
US2343174A (en) * 1940-08-02 1944-02-29 Du Pont Treatment for polyamides
US3988406A (en) * 1972-04-13 1976-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Method of providing a fibrous thermoplastic resin for depolymerization thereof
US4028159A (en) * 1974-06-19 1977-06-07 Champion International Corporation Resin reclamation in carpet manufacture
DE2440243C2 (de) * 1974-08-22 1985-05-02 Dr. Illing GmbH & Co KG Makromolekulare Chemie, 6114 Groß-Umstadt Verfahren zur Herstellung von Caprolactam aus Polycaprolactam
DE2442387C3 (de) * 1974-09-04 1981-09-10 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen
DE2703461C2 (de) * 1977-01-28 1985-01-10 Davy McKee AG, 6000 Frankfurt Stopwerk zur Vorverdichtung zerkleinerter voluminöser Polymerabfälle
US4107160A (en) * 1977-08-24 1978-08-15 Zimmer Aktiengesellschaft Continuous process for the recovery of caprolactam
US4311642A (en) * 1980-09-17 1982-01-19 Allied Corporation Recovery of caprolactam from nylon 6 oligomers

Also Published As

Publication number Publication date
DE522235T1 (de) 1993-06-09
US5169870A (en) 1992-12-08
EP0522235B1 (de) 2000-04-26
EP0522235A1 (de) 1993-01-13
CA2064658C (en) 1997-07-01
JPH05117441A (ja) 1993-05-14
DE69230960D1 (de) 2000-05-31
CA2064658A1 (en) 1992-12-25

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation