ATE124072T1 - Verfahren zur herstellung eines formteils mit formgedächtniseigenschaften sowie einige dieser erhaltenen formteile. - Google Patents

Verfahren zur herstellung eines formteils mit formgedächtniseigenschaften sowie einige dieser erhaltenen formteile.

Info

Publication number
ATE124072T1
ATE124072T1 AT90123938T AT90123938T ATE124072T1 AT E124072 T1 ATE124072 T1 AT E124072T1 AT 90123938 T AT90123938 T AT 90123938T AT 90123938 T AT90123938 T AT 90123938T AT E124072 T1 ATE124072 T1 AT E124072T1
Authority
AT
Austria
Prior art keywords
composition
transition temperature
predetermined lower
configuration
producing
Prior art date
Application number
AT90123938T
Other languages
English (en)
Inventor
Robert S Ward
Judy S Riffle
Original Assignee
Thoratec Lab Corp
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 Thoratec Lab Corp filed Critical Thoratec Lab Corp
Application granted granted Critical
Publication of ATE124072T1 publication Critical patent/ATE124072T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2004—Excipients; Inactive ingredients
    • A61K9/2022—Organic macromolecular compounds
    • A61K9/2031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, polyethylene oxide, poloxamers
    • A61K9/204—Polyesters, e.g. poly(lactide-co-glycolide)
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/04—Macromolecular materials
    • A61L29/049—Mixtures of macromolecular compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/141—Plasticizers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of 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
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
    • C08L75/04—Polyurethanes
    • C08L75/06—Polyurethanes from polyesters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2400/00—Materials characterised by their function or physical properties
    • A61L2400/16—Materials with shape-memory or superelastic properties
    • 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
    • C08G2280/00—Compositions for creating shape memory
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/02—Applications for biomedical use

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Materials For Medical Uses (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Dental Preparations (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Emergency Alarm Devices (AREA)
AT90123938T 1985-01-04 1986-01-06 Verfahren zur herstellung eines formteils mit formgedächtniseigenschaften sowie einige dieser erhaltenen formteile. ATE124072T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68879385A 1985-01-04 1985-01-04

Publications (1)

Publication Number Publication Date
ATE124072T1 true ATE124072T1 (de) 1995-07-15

Family

ID=24765798

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90123938T ATE124072T1 (de) 1985-01-04 1986-01-06 Verfahren zur herstellung eines formteils mit formgedächtniseigenschaften sowie einige dieser erhaltenen formteile.

Country Status (7)

Country Link
EP (2) EP0422693B1 (de)
JP (1) JPS62501778A (de)
KR (1) KR870700372A (de)
AT (1) ATE124072T1 (de)
AU (1) AU5302086A (de)
DE (1) DE3650342T2 (de)
WO (1) WO1986003980A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5025799A (en) * 1987-05-13 1991-06-25 Wilson Bruce C Steerable memory alloy guide wires
DE68923772T2 (de) * 1988-12-23 1996-04-25 Asahi Chemical Ind Polymerharz mit Formerinnerungsvermögen, Harzzusammensetzung und Formteile mit Fähigkeit zur Formerinnerung.
US5189110A (en) * 1988-12-23 1993-02-23 Asahi Kasei Kogyo Kabushiki Kaisha Shape memory polymer resin, composition and the shape memorizing molded product thereof
EP0516818B1 (de) * 1990-12-31 1998-08-12 Baxter International Inc. Verbessertes material für röhrchen medizinischer qualitätsstufe
WO1993017074A1 (en) * 1992-02-24 1993-09-02 Baxter International Inc. Polymer blends for torque transmitting catheters
DE4217165C1 (de) * 1992-05-23 1993-08-19 Rehau Ag + Co, 8673 Rehau, De
DE4243799A1 (de) * 1992-12-23 1994-06-30 Bayer Ag Siloxanblockcopolymer-modifizierte thermoplastische Polyurethane
IL137878A0 (en) 1998-02-23 2001-10-31 Mnemoscience Gmbh Shape memory polymers
JP4570707B2 (ja) * 1998-06-02 2010-10-27 テルモ株式会社 留置カテーテル
JP4570708B2 (ja) * 1998-06-02 2010-10-27 テルモ株式会社 分子量の異なる複数のポリグリコールを含有するポリウレタン樹脂からなる留置カテーテル
AUPQ170799A0 (en) * 1999-07-20 1999-08-12 Cardiac Crc Nominees Pty Limited Shape memory polyurethane or polyurethane-urea polymers
ES2230318T3 (es) * 2000-05-31 2005-05-01 Mnemoscience Gmbh Materias termoplasticas con memoria de forma yredes polimeras para ingenieria de tejidos.
US8158143B2 (en) 2000-07-14 2012-04-17 Helmholtz-Zentrum Geesthacht Zentrum Fuer Material- Und Kuestenforschung Gmbh Systems for releasing active ingredients, based on biodegradable or biocompatible polymers with a shape memory effect
WO2002083767A1 (en) * 2001-04-11 2002-10-24 Cheong Seok Hong Shape memory polymer structure having lattic frame
US7670302B2 (en) * 2001-12-18 2010-03-02 Boston Scientific Scimed, Inc. Super elastic guidewire with shape retention tip
DE10208211A1 (de) 2002-02-26 2003-09-11 Mnemoscience Gmbh Polymere Netzwerke
DE10215858A1 (de) * 2002-04-10 2004-03-18 Mnemoscience Gmbh Verfahren zur Haarbehandlung mit Formgedächtnispolymeren
US20060140892A1 (en) * 2002-04-10 2006-06-29 Andreas Lendlein Method for generation of memory effects on hair
DE10217351B3 (de) 2002-04-18 2004-02-12 Mnemoscience Gmbh Interpenetrierende Netzwerke
AU2003254333A1 (en) * 2002-07-10 2004-02-02 Mnemoscience Gmbh Systems for releasing active ingredients, based on biodegradable or biocompatible polymers with a shape memory effect
ATE534704T1 (de) 2002-10-11 2011-12-15 Univ Connecticut Vernetztes polycycloocten
US7524914B2 (en) 2002-10-11 2009-04-28 The University Of Connecticut Shape memory polymers based on semicrystalline thermoplastic polyurethanes bearing nanostructured hard segments
EP2260881B1 (de) * 2002-10-11 2020-03-25 Boston Scientific Limited Implantierbare medizinische Vorrichtungen
ATE498648T1 (de) 2002-10-11 2011-03-15 Univ Connecticut Mischungen von amorphen und semikristallinen polymeren mit formgedächtniseigenscchaften
US7794494B2 (en) 2002-10-11 2010-09-14 Boston Scientific Scimed, Inc. Implantable medical devices
US7976936B2 (en) 2002-10-11 2011-07-12 University Of Connecticut Endoprostheses
DE10300271A1 (de) 2003-01-08 2004-07-22 Mnemoscience Gmbh Photosensitive polymere Netzwerke
US11820852B2 (en) 2004-08-16 2023-11-21 Lawrence Livermore National Security, Llc Shape memory polymers
US9051411B2 (en) 2004-08-16 2015-06-09 Lawrence Livermore National Security, Llc Shape memory polymers
US7828790B2 (en) * 2004-12-03 2010-11-09 Boston Scientific Scimed, Inc. Selectively flexible catheter and method of use
US8043361B2 (en) 2004-12-10 2011-10-25 Boston Scientific Scimed, Inc. Implantable medical devices, and methods of delivering the same
FR2881353B1 (fr) * 2005-02-03 2008-12-05 Vygon Sa Perfectionnement aux embouts de ponction et aux tubes catheters
US8034046B2 (en) 2006-04-13 2011-10-11 Boston Scientific Scimed, Inc. Medical devices including shape memory materials
DK2175819T3 (en) 2007-11-08 2015-12-07 Renew Medical Inc DEVICE AND SYSTEM FOR fecal incontinence
JP5275139B2 (ja) * 2009-06-03 2013-08-28 株式会社イシダ 熱可塑性ポリウレタン成形物およびその製造方法
DE102009025293A1 (de) * 2009-06-15 2010-12-16 Adolf Pfaff & Dr. Karl-Friedrich Reichenbach GbR (vertretungsberechtigter Gesellschafter: Adolf Pfaff, 79183 Waldkirch) Radioopake Formgedächtnis-Polymere
US11993673B2 (en) 2010-05-06 2024-05-28 Lawrence Livermore National Security, Llc Shape memory polymers
JP7343515B2 (ja) * 2018-09-10 2023-09-12 三洋化成工業株式会社 ポリウレタン樹脂組成物

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774745A (en) * 1952-11-17 1956-12-18 Dow Corning High-slip nitrocellulose lacquers
US3384679A (en) * 1965-04-29 1968-05-21 Goodrich Co B F Composition comprising blend of thermoplastic polyurethane elastomer and phenoxy resin
DE1704160A1 (de) * 1968-02-17 1971-04-22 Kabel Und Metallwerke Guthoffn Verwendung von C-O- und N-H-Gruppen enthaltendem Polyurethan als Material fuer Schrumpfartikel
US3619455A (en) * 1968-04-19 1971-11-09 Pennsylvania Fluorocarbon Co I Heat deformable elastomeric articles
US3699063A (en) * 1971-01-14 1972-10-17 Goodyear Tire & Rubber Polyurethane reaction mixture based on anhydrous diamine-ketone curative
US4053548A (en) * 1971-11-17 1977-10-11 Exxon Research & Engineering Co. Fabrication process for multiphased plastics
US4210478A (en) * 1973-05-08 1980-07-01 International Paper Company Method of making a catheter
JPS535917B2 (de) * 1973-12-29 1978-03-02
US4115472A (en) * 1975-03-19 1978-09-19 Ppg Industries, Inc. Urethane coating compositions
US4044614A (en) * 1975-10-08 1977-08-30 Ipco Hospital Supply Corporation Thermometer
JPS5310875A (en) * 1976-07-19 1978-01-31 Showa Electric Wire & Cable Co Method of manufacturing selffbonding insulated wire
US4193899A (en) * 1977-11-29 1980-03-18 Exxon Research & Engineering Co. Elastomeric systems having unusual memory characteristics
DE2947966A1 (de) * 1979-11-28 1981-07-23 Bayer Ag, 5090 Leverkusen Pfropfpolymerisate, verfahren zu deren herstellung und deren verwendung
US4496349A (en) * 1981-05-08 1985-01-29 Renal Systems, Inc. Percutaneous implant
JPS5828096A (ja) * 1981-08-07 1983-02-18 Mitsubishi Electric Corp すべり軸受
FR2519992B1 (fr) * 1982-01-20 1986-04-04 Lhd Lab Hygiene Dietetique Procede de preparation d'une nouvelle composition thermoplastique a memoire a partir de polycaprolactone et de polyurethane, produit obtenu selon ce procede et son utilisation notamment en orthopedie
US4451605A (en) * 1982-05-07 1984-05-29 Minnesota Mining And Manufacturing Company Solvent-based, one-part, filled polyurethane for flexible parts
JPS5953528A (ja) * 1982-09-20 1984-03-28 Nippon Zeon Co Ltd ノルボルネン系ポリマー成形体の使用方法
US4452841A (en) * 1982-12-20 1984-06-05 The Goodyear Tire & Rubber Company Unsupported shaped sound barrier component
JPS59204541A (ja) * 1983-05-07 1984-11-19 日東電工株式会社 補強用の接着性シ−ト
DE3318730A1 (de) * 1983-05-21 1984-11-22 Akzo Gmbh, 5600 Wuppertal Biokompatible polyurethane
US4485227A (en) * 1983-06-16 1984-11-27 Howmedica, Inc. Biocompatible poly-(ether-urethane-urea) and process for its preparation
JPS6028433A (ja) * 1983-07-26 1985-02-13 Nippon Zeon Co Ltd 形状記憶性成形体及びその使用方法
US4473671A (en) * 1983-09-01 1984-09-25 Johnson & Johnson Products, Inc. Formable orthopedic casts and splints

Also Published As

Publication number Publication date
EP0211851A4 (de) 1988-01-28
KR870700372A (ko) 1987-12-28
EP0422693A3 (en) 1991-07-17
DE3650342D1 (de) 1995-07-27
DE3650342T2 (de) 1995-11-02
EP0422693B1 (de) 1995-06-21
JPS62501778A (ja) 1987-07-16
WO1986003980A1 (en) 1986-07-17
EP0422693A2 (de) 1991-04-17
EP0211851A1 (de) 1987-03-04
AU5302086A (en) 1986-07-29

Similar Documents

Publication Publication Date Title
ATE124072T1 (de) Verfahren zur herstellung eines formteils mit formgedächtniseigenschaften sowie einige dieser erhaltenen formteile.
IL137299A0 (en) Biodegradable shape memory polymers
EP0559908A4 (en) Metallic mold for molding synthetic resin
CA2149888A1 (en) Polyurea polymers having improved high temperature stability and method of making same
DE69926268D1 (de) Herstellungsmethode für im werkzeug geschäumtes formteil auf basis von aromatischem polyester
EP0780437A4 (de) Vernetzbare oder härtbare polyacteonzusammensetzung, vernetzte oder gehärtete formmasse daraus und verfahren zur herstellung davon
FI902693A0 (fi) Styren-polymer-pressmaterial och foerfarande foer dess framstaellning.
DE3865711D1 (de) Thermotroper copolyester, verfahren zur herstellung und seine anwendung.
DE68904709D1 (de) Verfahren zur herstellung aromatischer thermotroper copolyesteramide sowie entsprechende copolyesteramide.
DE69812187D1 (de) Verfahren zum herstellen von kunststoffschaumgegenständen mit niedriger dichte
JPS5638216A (en) Polyester formed article and preparation thereof
HU891286D0 (en) Process for producing compressed polymer compositions suitable to form spatial network molecular structure
DE69021255D1 (de) Zusammensetzung von kristallinem Polyphtalamid mit verbesserter Wärmebeständigkeit.
TWI263645B (en) 1-butene based polymer and product formed therefrom
ATE193035T1 (de) Fluormodifizierte polyester mit verbesserter verarbeitbarkeit
JPS6449626A (en) Spectacle frame and manufacture thereof
US4808351A (en) Process for manufacturing a molded prosthetic device
KR950007981B1 (ko) 후처리가 된 보철 장치
EP0366486A3 (de) Blockcopolymer mit Formerinnerungsvermögen, Verfahren zu seiner Verwendung und daraus erhaltene Produkte mit Fähigkeit zur Formerinnerung
FI890156A0 (fi) Styreenipohjaisesta polymeerista muovatut tuotteet ja menetelmä niiden valmistamiseksi
JPS57212031A (en) Production of holow molded article excellent in surface appearance
Fukuoka et al. Process for preparing crystallized aromatic polycarbonate and crystallized aromatic polycarbonate obtained by the process
JPS6449617A (en) Manufacture of heat-sensitive shape memory resin molded product
DE69003356D1 (de) Thermotropisches Copolyesteramid, Verfahren zur Herstellung und Verwendung.
JPS6416688A (en) Optical disk and production thereof

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties