BR9801507A - Despolimerização de poliamidas. - Google Patents
Despolimerização de poliamidas.Info
- Publication number
- BR9801507A BR9801507A BR9801507-9A BR9801507A BR9801507A BR 9801507 A BR9801507 A BR 9801507A BR 9801507 A BR9801507 A BR 9801507A BR 9801507 A BR9801507 A BR 9801507A
- Authority
- BR
- Brazil
- Prior art keywords
- depolymerization
- polyamides
- depolimerization
- monometric
- mpa
- Prior art date
Links
Classifications
-
- 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
- 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
- C08J11/16—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 inorganic material
-
- 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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (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)
- Polyamides (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Patente de Invenção: <B>"DESPOLIMERIZAçãO DE POLIAMIDAS"<D>. Processo para a despolimerização de uma ou mais poliamidas em seus componentes monométricos na presença de água por meio de um composto metálico (alcalino-terroso), a despolimerização acontecendo em uma pressão entre 0,2 e 2,0 MPa, de forma que altas conversões são alcançadas e a reação de despolimerização prossegue mais rápida, mesmo na presença de altos teores de oligómeros cíclicos.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005942A NL1005942C2 (nl) | 1997-05-01 | 1997-05-01 | Depolymeriseren van polyamiden. |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9801507A true BR9801507A (pt) | 2000-01-11 |
Family
ID=19764887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9801507-9A BR9801507A (pt) | 1997-05-01 | 1998-04-29 | Despolimerização de poliamidas. |
Country Status (13)
Country | Link |
---|---|
US (1) | US6087494A (pt) |
EP (1) | EP0875504A1 (pt) |
JP (1) | JPH111471A (pt) |
KR (1) | KR19980086657A (pt) |
BR (1) | BR9801507A (pt) |
CA (1) | CA2236116A1 (pt) |
CZ (1) | CZ131098A3 (pt) |
ID (1) | ID20886A (pt) |
NL (1) | NL1005942C2 (pt) |
PL (1) | PL326098A1 (pt) |
SG (1) | SG71785A1 (pt) |
TR (1) | TR199800771A2 (pt) |
TW (1) | TW438771B (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10225692A1 (de) | 2002-06-10 | 2003-12-24 | Zimmer Ag | Verfahren zur Herstellung von Caprolactam aus Polyamid-haltigen Abfällen |
DE10333538B4 (de) | 2003-07-23 | 2008-04-10 | Lurgi Zimmer Gmbh | Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes |
DE10333539A1 (de) * | 2003-07-23 | 2005-02-24 | Zimmer Ag | Verfahren zur Reinigung von Caprolactam aus Polyamidhaltigen Abfällen mittels UV-Bestrahlung |
US20080142138A1 (en) * | 2006-12-19 | 2008-06-19 | Joseph Alan Incavo | Tire sealant containing silica and depolymerized butyl rubber in the presence of organoperoxide and modifier |
US8080506B2 (en) * | 2009-07-14 | 2011-12-20 | MSI Technology LLC. | Reactive purge compound for polymer purging |
JP2012219210A (ja) * | 2011-04-12 | 2012-11-12 | As R&D合同会社 | 低分子ポリマーの製造方法、その方法により得られる低分子ポリマー、その低分子ポリマーを用いた塗料、粉体塗料、接着剤、繊維及び不織布 |
CN102399363B (zh) * | 2011-10-11 | 2013-11-06 | 上海焦耳蜡业有限公司 | 一种利用回收尼龙生产热熔胶的方法 |
CA3044099A1 (en) | 2018-05-23 | 2019-11-23 | 2569924 Ontario Inc. | Compositions and methods for removing contaminants from plastics processing equipment |
IT202100028601A1 (it) | 2021-11-10 | 2023-05-10 | Aquafil S P A | Procedimento per produrre epsilon-caprolattame mediante depolimerizzazione di policaprolattame (pa6). |
KR102367979B1 (ko) * | 2021-11-22 | 2022-02-25 | 주식회사 한울엔지니어링 | 고점도 폴리아미드계 고분자의 중합 반응기 및/또는 연결배관의 세척 조성물 및 이를 이용한 세척 방법 |
WO2024002975A1 (en) | 2022-06-26 | 2024-01-04 | Solvay Specialty Polymers Usa, Llc | Method for recycling a polyamide under acidic conditions |
EP4389809A1 (en) | 2022-12-23 | 2024-06-26 | Sipchem InnoVent SA | Apparatus and method for depolymerizing polycondensation polymers |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3182055A (en) * | 1963-02-18 | 1965-05-04 | Allied Chem | Regeneration of e-caprolactam from polyamides |
US3925365A (en) * | 1974-02-11 | 1975-12-09 | Kanebo Ltd | Method for isolating epsilon-caprolactam material |
JPS50123689A (pt) * | 1974-03-13 | 1975-09-29 | ||
US4311642A (en) * | 1980-09-17 | 1982-01-19 | Allied Corporation | Recovery of caprolactam from nylon 6 oligomers |
US4582642A (en) * | 1984-06-27 | 1986-04-15 | Allied Corporation | Recovery of caprolactam from process residues |
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 |
US5266694A (en) * | 1992-10-19 | 1993-11-30 | E. I. Du Pont De Nemours And Company | Nylon component reclamation |
US5457197A (en) * | 1994-04-08 | 1995-10-10 | Alliedsignal Inc. | Monomer recovery from multi-component materials |
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 |
US5536831A (en) * | 1994-12-12 | 1996-07-16 | Basf Aktiengesellschaft | Obtaining caprolactam by cleavage of molten polycaprolactam |
BE1009330A3 (nl) * | 1995-04-14 | 1997-02-04 | Dsm Nv | Depolymeriseren van polyamiden. |
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 |
-
1997
- 1997-05-01 NL NL1005942A patent/NL1005942C2/nl not_active IP Right Cessation
-
1998
- 1998-04-10 TW TW087105474A patent/TW438771B/zh not_active IP Right Cessation
- 1998-04-24 EP EP98201348A patent/EP0875504A1/en not_active Withdrawn
- 1998-04-27 ID IDP980625A patent/ID20886A/id unknown
- 1998-04-28 CZ CZ981310A patent/CZ131098A3/cs unknown
- 1998-04-28 SG SG1998000885A patent/SG71785A1/en unknown
- 1998-04-29 KR KR1019980015247A patent/KR19980086657A/ko not_active Application Discontinuation
- 1998-04-29 CA CA002236116A patent/CA2236116A1/en not_active Abandoned
- 1998-04-29 BR BR9801507-9A patent/BR9801507A/pt not_active IP Right Cessation
- 1998-04-29 US US09/069,204 patent/US6087494A/en not_active Expired - Fee Related
- 1998-04-30 PL PL98326098A patent/PL326098A1/xx unknown
- 1998-04-30 JP JP10156543A patent/JPH111471A/ja active Pending
- 1998-05-01 TR TR1998/00771A patent/TR199800771A2/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SG71785A1 (en) | 2000-04-18 |
NL1005942C2 (nl) | 1998-11-03 |
CA2236116A1 (en) | 1998-11-01 |
CZ131098A3 (cs) | 1998-11-11 |
ID20886A (id) | 1999-03-18 |
US6087494A (en) | 2000-07-11 |
JPH111471A (ja) | 1999-01-06 |
PL326098A1 (en) | 1998-11-09 |
TW438771B (en) | 2001-06-07 |
KR19980086657A (ko) | 1998-12-05 |
TR199800771A2 (xx) | 1998-11-23 |
EP0875504A1 (en) | 1998-11-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR9801507A (pt) | Despolimerização de poliamidas. | |
BR9706527A (pt) | Barra de torção polimérica enchida e reforçada com aço | |
PT1042496E (pt) | Processo de preparacao enzimatica de homogentisato | |
ES2176137T1 (es) | Metodo para recuperar acidos alcanoicos fluorados de aguas residuales. | |
AR021777A1 (es) | UNA COMPOSICIoN PARA ACONDICIONAR, ACLARAR E ILUMINAR EL CABELLO Y UN MÉTODO PARA ACONDICIONAR, ACLARAR E ILUMINAR EL CABELLO. | |
AR247710A1 (es) | Dehalogenacion de composiciones acuosas; dicha composicion acuosa utilizable y producto de papel | |
BR0015202A (pt) | Processo para a purificação de uma solução contendo aminoácido por meio de eletrodiálise, e processo integrado para a produção de um aminoácido livre | |
BR9805028A (pt) | Embreagem | |
NO954768L (no) | N-alkyltiopolyaminderivater som radiobeskyttende midler | |
ES2185255T3 (es) | Procedimiento para la preparacion de propeno y, dado el caso, de 1-buteno. | |
AR026063A1 (es) | Metodo para la preparacion de 5-carboxiftalida. | |
BR9913865A (pt) | Processo para revestir uma superfìcie com um agente de separação | |
CO4940435A1 (es) | Sal de hemisulfato del (1s,4r)-cis-4-[2-amino-6- (ciclopropilamino)-9h-purin-9-il]-2-ciclopenten-1-metanol o un solvato del mismo | |
AR027016A1 (es) | Proceso para la estabilizacion de vino | |
ES2170579T3 (es) | Procedimiento para purificar soluciones de silicato de metal alcalino. | |
BR0116318A (pt) | Sistema gerador de hidrogênio e processo de hidrodesalogenação | |
BR9808011A (pt) | Processo para a purificação de caprolactama | |
BR9909820A (pt) | Solução aquosa de peróxido de hidrogênio de alta pureza, processo para a preparação da mesma, e, uso da mesma | |
ES2185350T3 (es) | Sintesis de morfina-6-glucuronido. | |
AR001690A1 (es) | Procedimiento para la preparación de 1,1-difluoroetano | |
BR9807945A (pt) | Processos para separação e recuperação de fluoreto de hidrogênio, e para a produção de um composto orgânico que contém flúor. | |
BR9902041A (pt) | Processo de preparação de halogenetos de fenoxifenilsulfonila. | |
BRPI0415057A (pt) | composições de limpeza | |
BR9813897A (pt) | Derivados de bifenila como farmacêuticos | |
BR0011543A (pt) | Processo de estágios múltiplos para produção de microcápsulas enchidas com gás |
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 E 8A 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 1838 DE 28/03/2006. |