DE69704767T2 - Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam - Google Patents

Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam

Info

Publication number
DE69704767T2
DE69704767T2 DE69704767T DE69704767T DE69704767T2 DE 69704767 T2 DE69704767 T2 DE 69704767T2 DE 69704767 T DE69704767 T DE 69704767T DE 69704767 T DE69704767 T DE 69704767T DE 69704767 T2 DE69704767 T2 DE 69704767T2
Authority
DE
Germany
Prior art keywords
polycaprolactam
waste
caprolactam
depolynilizing
producing caprolactam
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.)
Expired - Lifetime
Application number
DE69704767T
Other languages
English (en)
Other versions
DE69704767D1 (de
DE69704767T3 (de
Inventor
Stylianos Sifniades
Bart Levy
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.)
Shaw Industries Group Inc
Original Assignee
Honeywell International Inc
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=24473686&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69704767(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Honeywell International Inc filed Critical Honeywell International Inc
Publication of DE69704767D1 publication Critical patent/DE69704767D1/de
Publication of DE69704767T2 publication Critical patent/DE69704767T2/de
Application granted granted Critical
Publication of DE69704767T3 publication Critical patent/DE69704767T3/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C07D201/16—Separation or purification
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyamides (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
DE69704767T 1996-03-18 1997-03-05 Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam Expired - Lifetime DE69704767T3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/617,448 US5948908A (en) 1996-03-18 1996-03-18 Process for depolymerizing polycaprolactam processing waste to form caprolactam
US617448 1996-03-18
PCT/US1997/003372 WO1997034868A1 (en) 1996-03-18 1997-03-05 Process for depolymerizing polycaprolactam processing waste to form caprolactam

Publications (3)

Publication Number Publication Date
DE69704767D1 DE69704767D1 (de) 2001-06-13
DE69704767T2 true DE69704767T2 (de) 2003-02-27
DE69704767T3 DE69704767T3 (de) 2008-12-11

Family

ID=24473686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704767T Expired - Lifetime DE69704767T3 (de) 1996-03-18 1997-03-05 Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam

Country Status (5)

Country Link
US (2) US5948908A (de)
EP (1) EP0892782B2 (de)
AT (1) ATE201015T1 (de)
DE (1) DE69704767T3 (de)
WO (1) WO1997034868A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19648747A1 (de) * 1996-11-25 1998-05-28 Basf Ag Verfahren zur Rückgewinnung von Caprolactam und seinen Oligomeren aus wässrigen Polycaprolactam-Extrakten
US5990306A (en) 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
US6610769B1 (en) 2000-06-30 2003-08-26 Basf Corporation Carpet backing adhesive and its use in recycling carpet
US20020198730A1 (en) * 2001-06-25 2002-12-26 Costello Michael Robert System and method for carpet recovery
NL2027900B1 (en) 2021-04-01 2022-10-17 Ioniqa Tech B V Method for the depolymerization of polycaprolactam processing waste to form caprolactam
WO2023074441A1 (ja) * 2021-10-29 2023-05-04 東レ株式会社 ε－カプロラクタムの製造方法およびポリアミド６の製造方法
TW202342427A (zh) 2022-01-28 2023-11-01 荷蘭商卡普三世責任有限公司 用於回收來自含尼龍6之多組分材料的ε-己內醯胺之方法
EP4306584A1 (de) * 2022-07-11 2024-01-17 Cap Iii B.V. Verfahren zur rückgewinnung von epsilon-caprolactam und polyether-polyurethan aus nylon-6- und polyether-polyurethan-haltigen materialien
EP4306510A1 (de) 2022-07-11 2024-01-17 Cap Iii B.V. Verfahren zur rückgewinnung von epsilon-caprolactam aus nylon-6-haltigem mehrkomponentenmaterial
EP4306585A1 (de) * 2022-07-11 2024-01-17 Cap Iii B.V. Verfahren zur rückgewinnung von epsilon-caprolactam und polyether-polyurethan aus polyamid-6- und polyether-polyurethan-haltigen materialien

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2348751A (en) * 1940-08-02 1944-05-16 Du Pont Treatment for polyamides
US2343174A (en) * 1940-08-02 1944-02-29 Du Pont Treatment for polyamides
GB793598A (en) * 1955-08-23 1958-04-16 Inventa Ag A process for recovering monomers from polyamides
US3182055A (en) * 1963-02-18 1965-05-04 Allied Chem Regeneration of e-caprolactam from polyamides
US3317519A (en) * 1965-05-21 1967-05-02 Allied Chem Simultaneous depolymerization of polycaproamide and polyester with recovery of caprolactam
US3988406A (en) * 1972-04-13 1976-10-26 Asahi Kasei Kogyo Kabushiki Kaisha Method of providing a fibrous thermoplastic resin for depolymerization thereof
US3939153A (en) * 1974-08-09 1976-02-17 Hillyard Chemical Company Process for producing caprolactam
DE2442387C3 (de) * 1974-09-04 1981-09-10 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen
JPS5313636A (en) * 1976-07-23 1978-02-07 Yamamoto Yogyo Kako Kk Novel painting composite
US4107160A (en) * 1977-08-24 1978-08-15 Zimmer Aktiengesellschaft Continuous process for the recovery of caprolactam
US4384085A (en) * 1982-01-06 1983-05-17 The Dow Chemical Company Preparation of nylon-6 with reduced levels of water-extractable material
US4605762A (en) * 1982-04-23 1986-08-12 Celanese Mexicana S.A. Depolymerization of condensation polymers
JPS6020379A (ja) * 1983-07-15 1985-02-01 Fujitsu Ltd フレ−ムポインタ制御方法
US5169870A (en) * 1991-06-21 1992-12-08 Basf Corporation Reclaiming ε-caprolactam from nylon 6 carpet
DE4211609A1 (de) * 1991-08-30 1993-03-04 Bayer Ag Gewinnung von caprolactam durch thermische spaltung von polyamid 6
DE4215087A1 (de) * 1992-05-07 1993-11-11 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Polycaprolactam
DE4216848A1 (de) * 1992-05-21 1993-11-25 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Polycaprolactam
DE59307118D1 (de) * 1993-01-28 1997-09-18 Polymer Eng Gmbh Verfahren und Vorrichtung zur Herstellung von Polyamid 6 aus Polyamid-Abfällen
US5294707A (en) * 1993-02-25 1994-03-15 Basf Corporation Semi-continuous depolymerization of nylon 6 polymer
DE69420075T2 (de) * 1993-06-04 2000-04-13 Dsm Nv Wiedergewinnung von Epsilon-Caprolactam aus Teppichabfallen
DE4421239A1 (de) * 1993-06-17 1994-12-22 Inventa Ag Verfahren zur Aufbereitung von hochmolekularem Polyamid 6 sowie nach diesem Verfahren hergestelltes Repolymerisat
US5409513A (en) * 1993-09-30 1995-04-25 Basf Corporation Apparatus for removing caprolactam emissions
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
US5468900A (en) * 1994-09-29 1995-11-21 E. I. Du Pont De Nemours And Company Conversion of nylon 6 and/or nylon 6,6 to adipic acid
DE4442727A1 (de) * 1994-12-01 1996-06-05 Basf Ag Verfahren zur Herstellung von Caprolactam
US5455346B1 (en) * 1994-12-12 1999-02-09 Basf Corp Obtaining caprolactam by cleavage of molten polycaprolactam
US5495015A (en) * 1994-12-12 1996-02-27 Basf Aktiengesellschaft Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactam
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

Also Published As

Publication number Publication date
EP0892782B1 (de) 2001-05-09
US5948908A (en) 1999-09-07
WO1997034868A1 (en) 1997-09-25
EP0892782B2 (de) 2008-06-11
DE69704767D1 (de) 2001-06-13
ATE201015T1 (de) 2001-05-15
DE69704767T3 (de) 2008-12-11
EP0892782A1 (de) 1999-01-27
US5869654A (en) 1999-02-09

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: SHAW INDUSTRIES GROUP, INC., DALTON, GA., US

8366 Restricted maintained after opposition proceedings