ATE166085T1 - Verfahren zur herstellung von polyätheramideblockpolymeren - Google Patents

Verfahren zur herstellung von polyätheramideblockpolymeren

Info

Publication number
ATE166085T1
ATE166085T1 AT92400655T AT92400655T ATE166085T1 AT E166085 T1 ATE166085 T1 AT E166085T1 AT 92400655 T AT92400655 T AT 92400655T AT 92400655 T AT92400655 T AT 92400655T AT E166085 T1 ATE166085 T1 AT E166085T1
Authority
AT
Austria
Prior art keywords
polyatheramide
producing
block polymers
diacidic
oligoetherdiol
Prior art date
Application number
AT92400655T
Other languages
English (en)
Inventor
Philippe Maj
Noelle Forichon
Original Assignee
Atochem Elf Sa
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 Atochem Elf Sa filed Critical Atochem Elf Sa
Application granted granted Critical
Publication of ATE166085T1 publication Critical patent/ATE166085T1/de

Links

Classifications

    • 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • 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
    • C08G69/44—Polyester-amides
    • 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
    • C08G69/40—Polyamides containing oxygen in the form of ether groups
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2929—Bicomponent, conjugate, composite or collateral fibers or filaments [i.e., coextruded sheath-core or side-by-side type]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cosmetics (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Saccharide Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
AT92400655T 1991-03-15 1992-03-12 Verfahren zur herstellung von polyätheramideblockpolymeren ATE166085T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9103175A FR2673946B1 (fr) 1991-03-15 1991-03-15 Polyether bloc amides, leur procede de synthese.

Publications (1)

Publication Number Publication Date
ATE166085T1 true ATE166085T1 (de) 1998-05-15

Family

ID=9410792

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92400655T ATE166085T1 (de) 1991-03-15 1992-03-12 Verfahren zur herstellung von polyätheramideblockpolymeren

Country Status (14)

Country Link
US (1) US5166309A (de)
EP (1) EP0504058B1 (de)
JP (1) JP2655777B2 (de)
KR (1) KR0125582B1 (de)
CN (2) CN1032918C (de)
AT (1) ATE166085T1 (de)
AU (1) AU648393B2 (de)
CA (1) CA2063028C (de)
DE (1) DE69225425T2 (de)
FI (1) FI921105A7 (de)
FR (1) FR2673946B1 (de)
IE (1) IE920831A1 (de)
NO (1) NO920916L (de)
TW (1) TW223084B (de)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69406686T2 (de) * 1993-01-08 1998-05-20 Tosoh Corp Esteramid-Copolymere und ihre Herstellung
US5446109A (en) * 1993-02-23 1995-08-29 Teijin Limited Polyamide/aliphatic polyester block copolymer, process for the production thereof, and blend containing the same
US5574101A (en) * 1993-12-07 1996-11-12 Asahi Kasei Kogyo Kabushiki Kaisha Acrylic resin composition
AU4699796A (en) * 1995-02-17 1996-09-04 W.R. Grace & Co.-Conn. Thermoplastic block copolymer with inherent anti-fog properties
EP0737709B1 (de) * 1995-04-11 2004-02-04 Atofina Verpackung aus Polymeren mit Polyamid- und Polyetherblöcken zum Frischhalten von Produkten
US5845652A (en) * 1995-06-06 1998-12-08 Tseng; Mingchih M. Dental floss
AU708978B2 (en) * 1995-06-06 1999-08-19 Gillette Canada Inc. Dental floss
US6027592A (en) * 1995-06-06 2000-02-22 Gillette Canada Inc. Dental floss
US6293287B1 (en) 1996-09-13 2001-09-25 Gillette Canada Inc. UV-cured resin-coated dental floss
US5900471A (en) * 1997-04-03 1999-05-04 Alliedsignal Inc. Films of blended nylon resins and laminates therefrom
EP1299415A4 (de) * 2000-07-12 2005-01-19 Gryphon Therapeutics Inc Modulatoren von chemokinrezeptoren, deren herstellung und verwendung
ATE500838T1 (de) * 2000-09-08 2011-03-15 Amylin Pharmaceuticals Inc ßPSEUDOß-NATIVE CHEMISCHE LIGATION
US7118737B2 (en) * 2000-09-08 2006-10-10 Amylin Pharmaceuticals, Inc. Polymer-modified synthetic proteins
US20040077835A1 (en) * 2001-07-12 2004-04-22 Robin Offord Chemokine receptor modulators, production and use
FR2832486A1 (fr) * 2001-11-22 2003-05-23 Atofina Tube multicouche conducteur a base de polyamides et d'evoh pour le transport d'essence
FR2841630B1 (fr) * 2002-07-01 2004-08-06 Atofina Tuyaux flexibles en polyamide pour l'air comprime
WO2004061094A1 (en) 2002-12-30 2004-07-22 Gryphon Therapeutics, Inc. Water-soluble thioester and selenoester compounds and methods for making and using the same
US6872451B2 (en) * 2003-08-28 2005-03-29 Cryovac, Inc. Ionomeric oxygen scavenger compositions
US7754798B2 (en) * 2003-08-28 2010-07-13 Cryovac, Inc. Oxygen scavenger block copolymers and compositions
US7078100B2 (en) * 2003-08-28 2006-07-18 Cryovac, Inc. Oxygen scavenger compositions derived from isophthalic acid and/or terephthalic acid monomer or derivatives thereof
EP1699710B1 (de) * 2003-12-24 2012-07-11 Cryovac, Inc. Sauerstoff entfernende zusammensetzungen
EP2314320A2 (de) 2005-04-05 2011-04-27 Istituto di Richerche di Biologia Molecolare P. Angeletti S.p.A. Verfahren zur Abschirmung von funktionalen Stellen oder Epitopen von Proteinen
US7985783B2 (en) 2006-09-21 2011-07-26 The Regents Of The University Of California Aldehyde tags, uses thereof in site-specific protein modification
FR2927631B1 (fr) 2008-02-15 2010-03-05 Arkema France Utilisation d'un promoteur d'adherence dans une solution de nettoyage de la surface d'un substrat a base de tpe et/ou de pa, pour augmenter l'adherence dudit substrat avec les joints de colle aqueux.
FR2936803B1 (fr) 2008-10-06 2012-09-28 Arkema France Copolymere a blocs issu de matieres renouvelables et procede de fabrication d'un tel copolymere a blocs.
FR2941700B1 (fr) 2009-02-02 2012-03-16 Arkema France Procede de synthese d'un alliage de copolymere a blocs presentant des proprietes antistatiques ameliorees.
FR2954151B1 (fr) 2009-12-17 2012-03-16 Oreal Utilisation d'une composition cosmetique comprenant au moins un polymere elastomere filmogene pour le traitement de la transpiration humaine
FR2958649B1 (fr) 2010-04-07 2012-05-04 Arkema France Copolymere a blocs issu de matieres renouvelables et procede de fabrication d'un tel copolymere a blocs
FR2960773B1 (fr) 2010-06-03 2015-12-11 Oreal Procedes de traitement cosmetique utilisant un revetement a base d'un polymere polyamide-polyether
KR101386980B1 (ko) 2010-06-30 2014-04-29 코오롱인더스트리 주식회사 타이어 이너라이너용 필름 및 그의 제조 방법
FR2972351B1 (fr) 2011-03-09 2013-04-12 Oreal Procede de traitement cosmetique de la transpiration humaine comprenant l'application d'un film polymerique anti-transpirant solubilisable
PT2717917T (pt) 2011-07-05 2016-07-27 Bioasis Technologies Inc Conjugados de anticorpos p97
US9932565B2 (en) 2012-07-31 2018-04-03 Bioasis Technologies, Inc. Dephosphorylated lysosomal storage disease proteins and methods of use thereof
WO2014074218A1 (en) 2012-11-12 2014-05-15 Redwood Bioscience, Inc. Compounds and methods for producing a conjugate
EP2920148B1 (de) 2012-11-16 2019-06-12 The Regents of the University of California Pictet-spengler-ligation zur chemischen proteinmodifizierung
US9310374B2 (en) 2012-11-16 2016-04-12 Redwood Bioscience, Inc. Hydrazinyl-indole compounds and methods for producing a conjugate
EP2970433B1 (de) 2013-03-13 2019-09-18 Bioasis Technologies Inc. Fragmente von p97 und verwendungen davon
JP6083320B2 (ja) * 2013-05-24 2017-02-22 東洋紡株式会社 ポリアミド系ブロック共重合体
EP3038657A2 (de) 2013-08-28 2016-07-06 Bioasis Technologies Inc. Cns-gerichtete konjugate mit modifizierten fc-regionen und verfahren zur verwendung davon
CN105744935B (zh) 2013-11-27 2022-09-30 雷德伍德生物科技股份有限公司 肼基-吡咯并化合物及用于生成缀合物的方法
CN104479127B (zh) * 2014-12-12 2016-10-19 东华大学 一种己内酰胺水解聚合物及其水解聚合方法
ES2908470T3 (es) 2015-11-09 2022-04-29 Scherer Technologies Llc R P Conjugados de anticuerpo anti-CD22-maitansina y métodos de uso de los mismos
ES3046711T3 (en) 2016-04-15 2025-12-02 Beckman Coulter Inc Photoactive macromolecules and uses thereof
TWI596133B (zh) 2016-06-03 2017-08-21 財團法人工業技術研究院 聚酯彈性體
EP3551703A4 (de) 2016-12-12 2021-01-20 Becton, Dickinson and Company Wasserlösliche polymerfarbstoffe
WO2019133399A1 (en) 2017-12-26 2019-07-04 Becton, Dickinson And Company Deep ultraviolet-excitable water-solvated polymeric dyes
CN119242071A (zh) 2018-03-30 2025-01-03 贝克顿·迪金森公司 含侧基发色团的水溶性聚合染料
US20220162336A1 (en) 2018-07-22 2022-05-26 Bioasis Technologies, Inc. Treatment of lymphatic metastases
FR3096683B1 (fr) 2019-05-27 2022-03-04 Arkema France copolyesteramide auto-ignifugé
FR3096684B1 (fr) 2019-05-29 2022-03-04 Arkema France Copolymère à blocs à résistance améliorée au sébum
US20210355468A1 (en) 2020-05-18 2021-11-18 Bioasis Technologies, Inc. Compositions and methods for treating lewy body dementia
US20210393787A1 (en) 2020-06-17 2021-12-23 Bioasis Technologies, Inc. Compositions and methods for treating frontotemporal dementia
EP4155349A1 (de) 2021-09-24 2023-03-29 Becton, Dickinson and Company Wasserlösliche gelbe grünabsorbierende farbstoffe
AU2023298234A1 (en) 2022-07-01 2025-01-16 Beckman Coulter, Inc. Novel fluorescent dyes and polymers from dihydrophenanthrene derivatives
CN114940755B (zh) * 2022-07-04 2024-03-01 华润化学材料科技股份有限公司 一种聚酰胺弹性体及其制备方法
CN115093700A (zh) * 2022-07-04 2022-09-23 华润化学材料科技股份有限公司 一种尼龙弹性体材料及其制备方法
WO2024044327A1 (en) 2022-08-26 2024-02-29 Beckman Coulter, Inc. Dhnt monomers and polymer dyes with modified photophysical properties
WO2024196805A1 (en) 2023-03-17 2024-09-26 Beckman Coulter, Inc. Benzothienopyrrole cyanine dyes
CN121866309A (zh) 2023-09-21 2026-04-14 贝克曼库尔特有限公司 用于流式细胞术的二氢菲(dhp)桥接染料

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2273021B1 (de) * 1974-05-31 1977-03-11 Ato Chimie
FR2378058A1 (fr) * 1977-01-24 1978-08-18 Ato Chimie Copolyetheresteramides stables a l'hydrolyse
FR2401947A1 (fr) * 1977-09-02 1979-03-30 Ato Chimie Procede de preparation de polyether-ester-amides sequences utilisables, entre autres, comme produits a mouler, a extruder ou a filer
DE2936977C2 (de) * 1979-09-13 1986-06-12 Hüls AG, 4370 Marl Verfahren zur Herstellung von Polyether(ester)amiden
DE2936976C2 (de) * 1979-09-13 1986-09-18 Hüls AG, 4370 Marl Verfahren zur Herstellung von Polyether(ester)amiden
FR2466478B2 (fr) * 1979-10-02 1986-03-14 Ato Chimie Procede de preparation de copolyetheresteramides aliphatiques elastomeres
FR2470141B1 (fr) * 1979-11-19 1985-05-31 Ato Chimie Nouveau procede de synthese de copolycondensats sequences polyetheresteramide
JPS5790017A (en) * 1980-11-25 1982-06-04 Toray Ind Inc Production of polyether-ester-amide
FR2497518A1 (fr) * 1981-01-05 1982-07-09 Ato Chimie Compositions adhesives thermofusibles a base de copolyetheramides sequences
US4578451A (en) * 1983-07-15 1986-03-25 Ethicon, Inc. Surgical filaments from block copolyetheramides
US4536563A (en) * 1983-11-18 1985-08-20 Daicel Chemical Industries, Ltd. Process for manufacturing polyetheresteramide
US4717618A (en) * 1983-12-06 1988-01-05 American Can Company Film and blends of polyetheramide block copolymer and ethylene vinyl alcohol copolymer
US5069955A (en) * 1983-12-06 1991-12-03 American National Can Company Film and blends of polyetheramide block copolymer and ethylene vinyl alcohol
JPS60228533A (ja) * 1984-04-27 1985-11-13 Toray Ind Inc ポリエ−テルエステルアミドの製造方法
US4956423A (en) * 1985-10-29 1990-09-11 Occidental Chemical Corporation Hot-melt adhesives
FR2590586B1 (fr) * 1985-11-26 1988-01-15 Atochem Compositions elastomeriques a base de polyetheramide et de caoutchouc nitrile et leur procede de fabrication
JPS6348332A (ja) * 1986-08-15 1988-03-01 Asahi Chem Ind Co Ltd ポリエ−テルエステルアミドの製造方法
US4923742A (en) * 1986-10-15 1990-05-08 Kimberly-Clark Corporation Elastomeric polyether block amide nonwoven web
JPS63182343A (ja) * 1987-01-23 1988-07-27 Asahi Chem Ind Co Ltd ポリエ−テルエステルアミドの製造法
JPS63280736A (ja) * 1987-05-14 1988-11-17 Asahi Chem Ind Co Ltd 低硬度ポリアミドエラストマ−の製造法
JPS63288214A (ja) * 1987-05-16 1988-11-25 Asahi Chem Ind Co Ltd ポリアミド弾性繊維
US4923743A (en) * 1987-06-15 1990-05-08 Milliken Research Corporation Apparatus and method for spraying moving substrates
US4919997A (en) * 1987-11-06 1990-04-24 Allied-Signal Inc. Melt-blown water-absorbing tissues and matts
DE3909215A1 (de) * 1989-02-11 1990-08-23 Bayer Ag Polyetheramid-schmelzklebstoffe

Also Published As

Publication number Publication date
CN1058272C (zh) 2000-11-08
CN1032918C (zh) 1996-10-02
AU648393B2 (en) 1994-04-21
FI921105L (fi) 1992-09-16
DE69225425D1 (de) 1998-06-18
TW223084B (de) 1994-05-01
AU1291092A (en) 1992-10-01
NO920916D0 (no) 1992-03-09
CA2063028A1 (fr) 1992-09-16
KR0125582B1 (ko) 1998-07-01
JP2655777B2 (ja) 1997-09-24
IE920831A1 (en) 1992-09-23
NO920916L (no) 1992-09-16
CN1144817A (zh) 1997-03-12
FI921105A7 (fi) 1992-09-16
US5166309A (en) 1992-11-24
DE69225425T2 (de) 1998-09-03
CN1065665A (zh) 1992-10-28
EP0504058B1 (de) 1998-05-13
JPH0593062A (ja) 1993-04-16
EP0504058A1 (de) 1992-09-16
KR920018108A (ko) 1992-10-21
CA2063028C (fr) 1996-09-24
FI921105A0 (fi) 1992-03-13
FR2673946B1 (fr) 1993-05-28
FR2673946A1 (fr) 1992-09-18

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