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BR9802430A - Despolimerização de poliamidas. - Google Patents

Despolimerização de poliamidas.

Info

Publication number
BR9802430A
BR9802430A BR9802430A BR9802430A BR9802430A BR 9802430 A BR9802430 A BR 9802430A BR 9802430 A BR9802430 A BR 9802430A BR 9802430 A BR9802430 A BR 9802430A BR 9802430 A BR9802430 A BR 9802430A
Authority
BR
Brazil
Prior art keywords
polyamides
depolymerization
depolymerising
depolymerisation
mol
Prior art date
Application number
BR9802430A
Other languages
English (en)
Inventor
Martin Booij
Yvonne Helene Frentzen
Bart Kurt Stefaan Hommez
Eric Jozef Goethals
Original Assignee
Dsm Nv
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
Application filed by Dsm Nv filed Critical Dsm Nv
Publication of BR9802430A publication Critical patent/BR9802430A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
    • C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
    • C08J11/24—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/44—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers
    • C07C209/50—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of carboxylic acid amides
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/20—Recycled plastic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Artificial Filaments (AREA)

Abstract

Patente de Invenção: <B>"DESPOLIMERIZAçãO DE POLIAMIDAS"<D>. A invenção rerfere-se a um processo para a despolimerização de uma ou mais poliamidas na presença de pelo menos um álcool alifático, a despolimerização ocorrendo com no máximo 40% em moles de catalisador. Tal processo propicia boa seletividade em relação aos componentes monoméricos de poliamidas. Além disso, tal processo produz um mínimo de correntes de despejo.
BR9802430A 1997-07-14 1998-07-10 Despolimerização de poliamidas. BR9802430A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1006575A NL1006575C2 (nl) 1997-07-14 1997-07-14 Depolymeriseren van polyamiden.

Publications (1)

Publication Number Publication Date
BR9802430A true BR9802430A (pt) 2000-01-18

Family

ID=19765347

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9802430A BR9802430A (pt) 1997-07-14 1998-07-10 Despolimerização de poliamidas.

Country Status (16)

Country Link
US (1) US6020486A (pt)
EP (1) EP0891969B1 (pt)
JP (1) JPH11152266A (pt)
KR (1) KR19990013862A (pt)
CN (1) CN1210855A (pt)
AT (1) ATE218123T1 (pt)
BR (1) BR9802430A (pt)
CA (1) CA2243126A1 (pt)
CZ (1) CZ220398A3 (pt)
DE (1) DE69805575T2 (pt)
EA (1) EA001381B1 (pt)
ID (1) ID20585A (pt)
NL (1) NL1006575C2 (pt)
PL (1) PL327478A1 (pt)
TR (1) TR199801353A2 (pt)
TW (1) TW459005B (pt)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6182913B1 (en) 1999-01-25 2001-02-06 Interface, Inc. Method and apparatus for reclaiming carpet components
JP2003535942A (ja) * 2000-06-08 2003-12-02 デュポン カナダ インコーポレイテッド ポリアミド原料の溶剤ベースの回収および再利用
DE10029422A1 (de) * 2000-06-15 2001-12-20 Andreas Hornung Einstufiges Verfahren zur Rückgewinnung von hochreinem epsilon-Caprolactam aus Teppichböden oder Mischfasern
JP3994660B2 (ja) * 2000-12-22 2007-10-24 日立化成工業株式会社 不飽和ポリエステル樹脂硬化物用分解処理液、該処理液を用いた不飽和ポリエステル樹脂硬化物の処理方法及び複合材料の分離方法
KR101160352B1 (ko) * 2004-03-26 2012-06-26 김도균 폴리에스테르와 폴리아미드 혼성 폐기물을 재활용한 고기능성 수지 및 그 제조방법
JP5016234B2 (ja) 2005-11-25 2012-09-05 国立大学法人山口大学 ポリアミドの解重合方法及びポリアミドのモノマーの製造方法
JP5125517B2 (ja) * 2006-01-31 2013-01-23 宇部興産株式会社 ６−ヒドロキシカプロン酸エステルの製造方法及びトリアルキルアミンの製造方法
US20100273001A1 (en) * 2009-04-22 2010-10-28 Keating Joseph Z Method of Recycling Carpet Components and Carpet Components formed Therefrom
US20110040027A1 (en) * 2009-04-22 2011-02-17 Keating Joseph Z Methods of recycling carpet components and products formed therefrom
US8113448B2 (en) * 2009-04-22 2012-02-14 Keating Joseph Z Methods of recycling carpet components and carpet components formed thereform
CN104017205B (zh) * 2014-06-11 2017-01-18 李兆顺 一种再生尼龙的方法
NL2015749B1 (en) * 2015-11-09 2017-05-26 Ioniqa Tech B V PA/PET separation process.
PL239015B1 (pl) * 2017-10-06 2021-10-25 Politechnika Gdanska Sposób dekompozycji termochemicznej poliamidów
CN109553561B (zh) * 2018-11-28 2020-07-28 四川塑金科技有限公司 再生衣服面料的制备方法及面料
CN218202636U (zh) * 2020-08-17 2023-01-03 深圳清研紫光检测技术有限公司 微电网系统、热能空间的温控和制冷系统以及耦合系统
EP4214266A1 (de) * 2020-09-16 2023-07-26 Evonik Operations GmbH Verfahren zur sauren hydrolyse von reinem polylaurinlactam
DE102021203743A1 (de) 2021-04-15 2022-10-20 Evonik Functional Solutions Gmbh Verfahren zur Solvolyse von Polyamiden mit Alkalimetallalkoholaten
CN113214475B (zh) * 2021-04-30 2022-08-23 东华大学 一种再生低熔点聚酰胺6弹性体的制备方法
CN113512193B (zh) * 2021-04-30 2022-05-06 东华大学 一种废弃聚酰胺6醇解再生的方法
WO2023074437A1 (ja) * 2021-10-29 2023-05-04 東レ株式会社 ε－カプロラクタムおよびポリアミド６オリゴマーの回収方法、ならびにポリアミド６の製造方法
CN114163622B (zh) * 2021-12-15 2023-03-21 浙江新和成特种材料有限公司 一种半芳香族聚酰胺废料回收制备可生物降解材料的方法及其产品
JP7772830B2 (ja) * 2021-12-23 2025-11-18 旭化成株式会社 解重合方法
EP4543974A1 (en) 2022-06-26 2025-04-30 Solvay Specialty Polymers USA, LLC Method for recycling a polyamide under acidic conditions
TW202442633A (zh) * 2023-02-27 2024-11-01 日商三菱瓦斯化學股份有限公司 環狀內醯胺之製造方法、及環狀內醯胺之製造裝置
WO2025182802A1 (ja) * 2024-02-26 2025-09-04 三菱瓦斯化学株式会社 環状ラクタムの製造方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840606A (en) * 1955-04-15 1958-06-24 Du Pont Nylon hydrolysis
DE1235924B (de) * 1962-07-25 1967-03-09 Basf Ag Verfahren zur Rueckgewinnung von Lactamen aus Polyamiden
US3182055A (en) * 1963-02-18 1965-05-04 Allied Chem Regeneration of e-caprolactam from polyamides
JPS52113938A (en) * 1976-03-23 1977-09-24 Teijin Ltd Recovery of dimethyl terephthalate
US5266694A (en) * 1992-10-19 1993-11-30 E. I. Du Pont De Nemours And Company Nylon component reclamation
US5536831A (en) * 1994-12-12 1996-07-16 Basf Aktiengesellschaft Obtaining caprolactam by cleavage of molten polycaprolactam

Also Published As

Publication number Publication date
EA001381B1 (ru) 2001-02-26
ID20585A (id) 1999-01-21
TR199801353A2 (xx) 1999-02-22
NL1006575C2 (nl) 1999-01-15
US6020486A (en) 2000-02-01
KR19990013862A (ko) 1999-02-25
CN1210855A (zh) 1999-03-17
DE69805575T2 (de) 2003-01-30
EP0891969A1 (en) 1999-01-20
DE69805575D1 (de) 2002-07-04
EP0891969B1 (en) 2002-05-29
CZ220398A3 (cs) 1999-02-17
EA199800561A1 (ru) 1999-02-25
CA2243126A1 (en) 1999-01-14
PL327478A1 (en) 1999-01-18
ATE218123T1 (de) 2002-06-15
TW459005B (en) 2001-10-11
JPH11152266A (ja) 1999-06-08

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A,6A,7A, 8A E 9A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1912 DE 28/08/2007.