DK171157B1 - Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden - Google Patents

Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden Download PDF

Info

Publication number: DK171157B1
Authority: DK; Denmark
Prior art keywords: mpa; temperature; pressure; polyethylene; article
Prior art date: 1988-12-02

Application number

DK104391A

Other languages

Danish (da)

English (en)

Other versions

DK104391D0 (da

DK104391A (da

Inventor

Jr Edward George Howard

Original Assignee

Du Pont

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.)

1988-12-02

Filing date

1991-05-31

Publication date

1996-07-08

1991-05-31 Application filed by Du Pont filed Critical Du Pont

1991-05-31 Publication of DK104391D0 publication Critical patent/DK104391D0/da

1991-05-31 Publication of DK104391A publication Critical patent/DK104391A/da

1996-07-08 Application granted granted Critical

1996-07-08 Publication of DK171157B1 publication Critical patent/DK171157B1/da

Links

239000004698 Polyethylene Substances 0.000 title claims abstract description 52
-1 polyethylene Polymers 0.000 title claims abstract description 48
229920000573 polyethylene Polymers 0.000 title claims abstract description 46
238000000034 method Methods 0.000 title claims description 35
239000000463 material Substances 0.000 claims abstract description 36
230000001747 exhibiting effect Effects 0.000 claims abstract description 4
238000002844 melting Methods 0.000 claims description 35
230000008018 melting Effects 0.000 claims description 32
238000001816 cooling Methods 0.000 claims description 28
238000010438 heat treatment Methods 0.000 claims description 27
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
239000012530 fluid Substances 0.000 claims description 14
238000005452 bending Methods 0.000 claims description 9
239000012298 atmosphere Substances 0.000 claims description 5
230000006835 compression Effects 0.000 claims description 3
238000007906 compression Methods 0.000 claims description 3
230000015572 biosynthetic process Effects 0.000 claims 1
238000004519 manufacturing process Methods 0.000 abstract description 9
210000001503 joint Anatomy 0.000 abstract description 6
210000004394 hip joint Anatomy 0.000 abstract description 3
229920000642 polymer Polymers 0.000 description 36
229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 25
239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 17
238000012360 testing method Methods 0.000 description 17
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
239000007789 gas Substances 0.000 description 7
229920006362 Teflon® Polymers 0.000 description 6
229910052786 argon Inorganic materials 0.000 description 6
238000002474 experimental method Methods 0.000 description 6
229910001220 stainless steel Inorganic materials 0.000 description 6
239000010935 stainless steel Substances 0.000 description 6
238000012986 modification Methods 0.000 description 5
230000004048 modification Effects 0.000 description 5
238000010992 reflux Methods 0.000 description 5
238000003303 reheating Methods 0.000 description 5
230000002411 adverse Effects 0.000 description 4
238000002425 crystallisation Methods 0.000 description 4
230000000694 effects Effects 0.000 description 4
230000002706 hydrostatic effect Effects 0.000 description 4
238000009413 insulation Methods 0.000 description 4
239000007788 liquid Substances 0.000 description 4
230000001050 lubricating effect Effects 0.000 description 4
239000000155 melt Substances 0.000 description 4
229920003023 plastic Polymers 0.000 description 4
239000004033 plastic Substances 0.000 description 4
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
230000008025 crystallization Effects 0.000 description 3
239000011888 foil Substances 0.000 description 3
238000010583 slow cooling Methods 0.000 description 3
239000007858 starting material Substances 0.000 description 3
238000012546 transfer Methods 0.000 description 3
229910000634 wood's metal Inorganic materials 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
238000005266 casting Methods 0.000 description 2
239000013078 crystal Substances 0.000 description 2
238000011161 development Methods 0.000 description 2
238000010586 diagram Methods 0.000 description 2
239000011521 glass Substances 0.000 description 2
210000001624 hip Anatomy 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
238000003801 milling Methods 0.000 description 2
239000012299 nitrogen atmosphere Substances 0.000 description 2
230000000399 orthopedic effect Effects 0.000 description 2
230000003647 oxidation Effects 0.000 description 2
238000007254 oxidation reaction Methods 0.000 description 2
229920001343 polytetrafluoroethylene Polymers 0.000 description 2
239000004810 polytetrafluoroethylene Substances 0.000 description 2
238000003825 pressing Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
238000011282 treatment Methods 0.000 description 2
229910001369 Brass Inorganic materials 0.000 description 1
235000008694 Humulus lupulus Nutrition 0.000 description 1
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
239000004721 Polyphenylene oxide Substances 0.000 description 1
238000000333 X-ray scattering Methods 0.000 description 1
238000004458 analytical method Methods 0.000 description 1
FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
239000008280 blood Substances 0.000 description 1
210000004369 blood Anatomy 0.000 description 1
239000010951 brass Substances 0.000 description 1
238000007707 calorimetry Methods 0.000 description 1
210000003679 cervix uteri Anatomy 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000004020 conductor Substances 0.000 description 1
238000005520 cutting process Methods 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
238000013461 design Methods 0.000 description 1
238000000113 differential scanning calorimetry Methods 0.000 description 1
238000004455 differential thermal analysis Methods 0.000 description 1
238000009826 distribution Methods 0.000 description 1
210000002310 elbow joint Anatomy 0.000 description 1
238000005485 electric heating Methods 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
239000012850 fabricated material Substances 0.000 description 1
239000000835 fiber Substances 0.000 description 1
238000013467 fragmentation Methods 0.000 description 1
238000006062 fragmentation reaction Methods 0.000 description 1
239000003365 glass fiber Substances 0.000 description 1
239000011491 glass wool Substances 0.000 description 1
150000002334 glycols Chemical class 0.000 description 1
238000007654 immersion Methods 0.000 description 1
239000011810 insulating material Substances 0.000 description 1
210000003127 knee Anatomy 0.000 description 1
210000000629 knee joint Anatomy 0.000 description 1
230000007774 longterm Effects 0.000 description 1
238000005259 measurement Methods 0.000 description 1
229910052750 molybdenum Inorganic materials 0.000 description 1
239000011733 molybdenum Substances 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
231100000252 nontoxic Toxicity 0.000 description 1
230000003000 nontoxic effect Effects 0.000 description 1
238000005457 optimization Methods 0.000 description 1
230000001590 oxidative effect Effects 0.000 description 1
230000035515 penetration Effects 0.000 description 1
125000005010 perfluoroalkyl group Chemical group 0.000 description 1
230000000704 physical effect Effects 0.000 description 1
238000000053 physical method Methods 0.000 description 1
238000013031 physical testing Methods 0.000 description 1
229920000570 polyether Polymers 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000002203 pretreatment Methods 0.000 description 1
238000001953 recrystallisation Methods 0.000 description 1
238000005096 rolling process Methods 0.000 description 1
238000007789 sealing Methods 0.000 description 1
238000000235 small-angle X-ray scattering Methods 0.000 description 1
239000007790 solid phase Substances 0.000 description 1
238000001356 surgical procedure Methods 0.000 description 1
238000009864 tensile test Methods 0.000 description 1
210000002303 tibia Anatomy 0.000 description 1
230000000472 traumatic effect Effects 0.000 description 1
210000000689 upper leg Anatomy 0.000 description 1
238000003466 welding Methods 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/3094—Designing or manufacturing processes
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0658—PE, i.e. polyethylene characterised by its molecular weight
- B29K2023/0683—UHMWPE, i.e. ultra high molecular weight polyethylene
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
- B29L2031/7532—Artificial members, protheses

Landscapes

Health & Medical Sciences (AREA)
Chemical & Material Sciences (AREA)
Medicinal Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
General Health & Medical Sciences (AREA)
Animal Behavior & Ethology (AREA)
Oral & Maxillofacial Surgery (AREA)
Transplantation (AREA)
Veterinary Medicine (AREA)
Public Health (AREA)
Organic Chemistry (AREA)
Polymers & Plastics (AREA)
Life Sciences & Earth Sciences (AREA)
Epidemiology (AREA)
Dermatology (AREA)
Heart & Thoracic Surgery (AREA)
Biomedical Technology (AREA)
Engineering & Computer Science (AREA)
Cardiology (AREA)
Orthopedic Medicine & Surgery (AREA)
General Chemical & Material Sciences (AREA)
Vascular Medicine (AREA)
Materials For Medical Uses (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Compositions Of Macromolecular Compounds (AREA)
Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Manufacture Of Macromolecular Shaped Articles (AREA)
Prostheses (AREA)
Polyethers (AREA)
Treatments Of Macromolecular Shaped Articles (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Laminated Bodies (AREA)

DK104391A 1988-12-02 1991-05-31 Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden DK171157B1 (da)

Applications Claiming Priority (8)

Application Number	Priority Date	Filing Date	Title
US27891388A	1988-12-02	1988-12-02
US27891388		1988-12-02
US28857788A	1988-12-22	1988-12-22
US28857788		1988-12-22
US42691689A	1989-10-24	1989-10-24
US42691689		1989-10-24
PCT/US1989/005261 WO1990006139A1 (fr)	1988-12-02	1989-11-28	Polyethylene lineaire de poids moleculaire tres eleve, objets et procedes de fabrication
US8905261		1989-11-28

Publications (3)

Publication Number	Publication Date
DK104391D0 DK104391D0 (da)	1991-05-31
DK104391A DK104391A (da)	1991-05-31
DK171157B1 true DK171157B1 (da)	1996-07-08

Family

ID=27403027

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DK104391A DK171157B1 (da)	1988-12-02	1991-05-31	Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden
DK057795A DK171480B1 (da)	1988-12-02	1995-05-19	Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
DK057795A DK171480B1 (da)	1988-12-02	1995-05-19	Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden

Country Status (9)

Country	Link
EP (2)	EP0446300B1 (fr)
JP (1)	JPH04502028A (fr)
AT (1)	ATE138810T1 (fr)
BR (1)	BR8907794A (fr)
CA (1)	CA2004454A1 (fr)
DE (1)	DE68926624T2 (fr)
DK (2)	DK171157B1 (fr)
ES (1)	ES2087147T3 (fr)
WO (1)	WO1990006139A1 (fr)

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US5478906A (en) *	1988-12-02	1995-12-26	E. I. Du Pont De Nemours And Company	Ultrahigh molecular weight linear polyethylene and articles thereof
NL9001847A (nl) *	1990-08-21	1992-03-16	Stamicarbon	Prothese uit polyetheen gevuld met een anorganische vulstof.
CA2124356A1 (fr) *	1991-11-27	1993-06-10	Edward George Howard, Jr.	Polyethylene lineaire a masse moleculaire ultra-elevee, et articles faits de cette matiere et procedes pour leur fabrication
US5807407A (en) *	1992-05-04	1998-09-15	Biomet, Inc.	Medical implant device and method for making same
US5468842A (en) *	1992-06-23	1995-11-21	E. I. Du Pont De Nemours And Company	Annealed linear high density polyethylene and preparation thereof
US5382643A (en) *	1992-06-23	1995-01-17	E. I. Du Pont De Nemours And Company	Annealed linear high density polyethylene and preparation thereof
US5505984A (en) *	1993-01-21	1996-04-09	England; Garry L.	Method for forming biocompatible components using an isostatic press
US5414049A (en) *	1993-06-01	1995-05-09	Howmedica Inc.	Non-oxidizing polymeric medical implant
CA2166450C (fr)	1995-01-20	2008-03-25	Ronald Salovey	Polyethylene de masse moleculaire tres elevee, reticule chimiquement, pour articulations artificielles chez l'homme
US8865788B2 (en)	1996-02-13	2014-10-21	The General Hospital Corporation	Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices
US8563623B2 (en)	1996-02-13	2013-10-22	The General Hospital Corporation	Radiation melt treated ultra high molecular weight polyethylene prosthetic devices
US5879400A (en) *	1996-02-13	1999-03-09	Massachusetts Institute Of Technology	Melt-irradiated ultra high molecular weight polyethylene prosthetic devices
EP0881919B1 (fr) *	1996-02-13	2005-08-03	Massachusetts Institute Of Technology	Dispositifs de prothese a base de polyethylene a poids moleculaire tres eleve, traites par fusion et rayonnement
US6036676A (en) *	1996-05-03	2000-03-14	Baxter International Inc.	Surface modified polymeric material formulation
CA2260241C (fr)	1996-07-09	2010-09-14	The Orthopaedic Hospital	Reticulation du polyethylene pour limiter l'usure au moyen de traitements thermique et a rayonnement
US6228900B1 (en)	1996-07-09	2001-05-08	The Orthopaedic Hospital And University Of Southern California	Crosslinking of polyethylene for low wear using radiation and thermal treatments
US6017975A (en)	1996-10-02	2000-01-25	Saum; Kenneth Ashley	Process for medical implant of cross-linked ultrahigh molecular weight polyethylene having improved balance of wear properties and oxidation resistance
US6692679B1 (en)	1998-06-10	2004-02-17	Depuy Orthopaedics, Inc.	Cross-linked molded plastic bearings
JP2000119453A (ja) *	1998-10-14	2000-04-25	Sekisui Chem Co Ltd	ポリオレフィン樹脂成形体およびその製造方法
US6627141B2 (en)	1999-06-08	2003-09-30	Depuy Orthopaedics, Inc.	Method for molding a cross-linked preform
US6245276B1 (en)	1999-06-08	2001-06-12	Depuy Orthopaedics, Inc.	Method for molding a cross-linked preform
US6184265B1 (en)	1999-07-29	2001-02-06	Depuy Orthopaedics, Inc.	Low temperature pressure stabilization of implant component
DE60026585T2 (de)	1999-12-17	2007-03-08	Cartificial A/S	Prothesenvorrichtung
ES2317905T3 (es)	2000-04-27	2009-05-01	Orthopaedic Hospital	Polietilenos resistentes a la oxidacion y resistentes al desgaste para protesis articulares humanas y procedimientos para prepararlos.
ES2286131T3 (es)	2000-07-31	2007-12-01	Massachusetts General Hospital	Componente acetabular monopolar constreñido.
US6818172B2 (en)	2000-09-29	2004-11-16	Depuy Products, Inc.	Oriented, cross-linked UHMWPE molding for orthopaedic applications
US7819925B2 (en)	2002-01-28	2010-10-26	Depuy Products, Inc.	Composite prosthetic bearing having a crosslinked articulating surface and method for making the same
US7186364B2 (en)	2002-01-28	2007-03-06	Depuy Products, Inc.	Composite prosthetic bearing constructed of polyethylene and an ethylene-acrylate copolymer and method for making the same
CA2429930C (fr)	2002-06-06	2008-10-14	Howmedica Osteonics Corp.	Polyethylene sequence reticule
AU2004206826B8 (en)	2003-01-16	2009-03-26	Cambridge Polymer Group, Inc.	Methods for making oxidation resistant polymeric material
US7938861B2 (en)	2003-04-15	2011-05-10	Depuy Products, Inc.	Implantable orthopaedic device and method for making the same
CA2565849C (fr)	2004-05-11	2013-01-29	The General Hospital Corporation Dba Massachusetts General Hospital	Procede de fabrication d'une matiere polymere resistant a l'oxydation
US7384430B2 (en)	2004-06-30	2008-06-10	Depuy Products, Inc.	Low crystalline polymeric material for orthopaedic implants and an associated method
US7896921B2 (en)	2004-12-30	2011-03-01	Depuy Products, Inc.	Orthopaedic bearing and method for making the same
US7883653B2 (en)	2004-12-30	2011-02-08	Depuy Products, Inc.	Method of making an implantable orthopaedic bearing
US7879275B2 (en)	2004-12-30	2011-02-01	Depuy Products, Inc.	Orthopaedic bearing and method for making the same
WO2006138247A2 (fr)	2005-06-14	2006-12-28	Omni Life Science, Inc	Article en polyethylene reticule
WO2012043060A1 (fr) *	2010-09-30	2012-04-05	積水化学工業株式会社	Matière hautement polymère et son procédé de production
JP6753867B2 (ja) *	2015-05-07	2020-09-09	フイナ・テクノロジー・インコーポレーテツドＦｉｎａＴｅｃｈｎｏｌｏｇｙ，Ｉｎｃｏｒｐｏｒａｔｅｄ	卓越したシート押し出し熱成形能のためのポリエチレン

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Publication number	Priority date	Publication date	Assignee	Title
US4483399A (en) *	1981-02-12	1984-11-20	Colgate Stirling A	Method of deep drilling
US4501327A (en) *	1982-07-19	1985-02-26	Philip Retz	Split casing block-off for gas or water in oil drilling

1989
- 1989-11-28 ES ES90901237T patent/ES2087147T3/es not_active Expired - Lifetime
- 1989-11-28 WO PCT/US1989/005261 patent/WO1990006139A1/fr not_active Ceased
- 1989-11-28 BR BR898907794A patent/BR8907794A/pt not_active Application Discontinuation
- 1989-11-28 AT AT90901237T patent/ATE138810T1/de not_active IP Right Cessation
- 1989-11-28 JP JP2501552A patent/JPH04502028A/ja active Pending
- 1989-11-28 EP EP90901237A patent/EP0446300B1/fr not_active Expired - Lifetime
- 1989-11-28 DE DE68926624T patent/DE68926624T2/de not_active Expired - Lifetime
- 1989-12-01 EP EP89312565A patent/EP0373800B1/fr not_active Expired - Lifetime
- 1989-12-01 CA CA002004454A patent/CA2004454A1/fr not_active Abandoned
1991
- 1991-05-31 DK DK104391A patent/DK171157B1/da not_active IP Right Cessation
1995
- 1995-05-19 DK DK057795A patent/DK171480B1/da active

Also Published As

Publication number	Publication date
BR8907794A (pt)	1991-08-27
ES2087147T3 (es)	1996-07-16
DK57795A (da)	1995-05-19
WO1990006139A1 (fr)	1990-06-14
ATE138810T1 (de)	1996-06-15
DK104391D0 (da)	1991-05-31
EP0373800A1 (fr)	1990-06-20
EP0446300A1 (fr)	1991-09-18
JPH04502028A (ja)	1992-04-09
DE68926624T2 (de)	1996-10-02
DK104391A (da)	1991-05-31
EP0446300B1 (fr)	1996-06-05
DK171480B1 (da)	1996-11-18
CA2004454A1 (fr)	1990-06-02
DE68926624D1 (de)	1996-07-11
EP0373800B1 (fr)	1994-05-25

Publication	Publication Date	Title
DK171157B1 (da)	1996-07-08	Lineært polyethylen med ultrahøj molekylvægt, genstand bestående heraf og fremgangsmåde til fremstilling af genstanden
US5621070A (en)	1997-04-15	Ultra high molecular weight linear polyethylene processes of manufacture
WO1993010953A1 (fr)	1993-06-10	Polyethylene lineaire de poids moleculaire extremement eleve, procedes de production et articles fabriques
US5037928A (en)	1991-08-06	Process of manufacturing ultrahigh molecular weight linear polyethylene shaped articles
HK1000625B (en)	1998-04-09	Ultrahigh molecular weight linear polyethylene and processes of manufacture
US6316158B1 (en)	2001-11-13	Process for medical implant of cross-linked ultrahigh molecular weight polyethylene having improved balance of wear properties and oxidation resistance
US5721334A (en)	1998-02-24	Process for producing ultra-high molecular weight low modulus polyethylene shaped articles via controlled pressure and temperature and compositions and articles produced therefrom
DK171013B1 (da)	1996-04-22	Fremgangsmåde til fremstilling af en formgivet genstand af et lineært polyethylen med ultrahøj molekylvægt samt den således fremstillede genstand
Lu et al.	1987	Effect of thermal history on the initiation of slow crack growth in linear polyethylene
USRE26956E (en)	1970-09-29	Molecularly oriented bottle
JPS6218339B2 (fr)	1987-04-22
JPH04502024A (ja)	1992-04-09	超高分子量線状ポリエチレン成型品の製造方法
KR100538915B1 (ko)	2006-11-07	방사선 및 용융처리된 초고분자량 폴리에틸렌 보철장치
WO2023201037A2 (fr)	2023-10-19	Procédés pour induire une cristallisation dans des polymères cristallisables, et articles issus de ceux-ci
Wingard	1997	Use of thermal analysis techniques for examining blow-molded pet bottle specimens
JPS58173614A (ja)	1983-10-12	ポリエチレン容器の製造方法
MXPA98006579A (en)	2001-12-04	Radiation and melt treated ultra high molecular weight polyethylene prosthetic devices

Legal Events

Date	Code	Title	Description
1996-07-08	B1	Patent granted (law 1993)
1999-04-06	PBP	Patent lapsed