ATE201015T1 - Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam - Google Patents

Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam

Info

Publication number
ATE201015T1
ATE201015T1 AT97914854T AT97914854T ATE201015T1 AT E201015 T1 ATE201015 T1 AT E201015T1 AT 97914854 T AT97914854 T AT 97914854T AT 97914854 T AT97914854 T AT 97914854T AT E201015 T1 ATE201015 T1 AT E201015T1
Authority
AT
Austria
Prior art keywords
waste
caprolactam
polycaprolactama
depolynilization
polycaprolactam
Prior art date
Application number
AT97914854T
Other languages
English (en)
Inventor
Stylianos Sifniades
Alan Bart Levy
Original Assignee
Honeywell Int 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=ATE201015(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Honeywell Int Inc filed Critical Honeywell Int Inc
Application granted granted Critical
Publication of ATE201015T1 publication Critical patent/ATE201015T1/de

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)
AT97914854T 1996-03-18 1997-03-05 Verfahren für depolynilrisierung von polycaprolactamabfällen zur herstellung von caprolactam ATE201015T1 (de)

Applications Claiming Priority (2)

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
PCT/US1997/003372 WO1997034868A1 (en) 1996-03-18 1997-03-05 Process for depolymerizing polycaprolactam processing waste to form caprolactam

Publications (1)

Publication Number Publication Date
ATE201015T1 true ATE201015T1 (de) 2001-05-15

Family

ID=24473686

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97914854T ATE201015T1 (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
KR20240087761A (ko) * 2021-10-29 2024-06-19 도레이 카부시키가이샤 ε-카프로락탐의 제조 방법 및 폴리아미드6의 제조 방법
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
EP4306510A1 (de) 2022-07-11 2024-01-17 Cap Iii B.V. Verfahren zur rückgewinnung von epsilon-caprolactam aus nylon-6-haltigem mehrkomponentenmaterial
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
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
US2343174A (en) * 1940-08-02 1944-02-29 Du Pont Treatment for polyamides
US2348751A (en) * 1940-08-02 1944-05-16 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
EP0608454B1 (de) * 1993-01-28 1997-08-13 POLYMER ENGINEERING 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
SG50773A1 (en) * 1993-06-04 1998-07-20 Dsm Nv Reclaiming e-caprolactam from carpet waste
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
WO1997034868A1 (en) 1997-09-25
EP0892782B1 (de) 2001-05-09
DE69704767T2 (de) 2003-02-27
US5869654A (en) 1999-02-09
DE69704767D1 (de) 2001-06-13
EP0892782A1 (de) 1999-01-27
DE69704767T3 (de) 2008-12-11
US5948908A (en) 1999-09-07
EP0892782B2 (de) 2008-06-11

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties