IL89977A0 - Methods for curing partially polymerized parts - Google Patents

Methods for curing partially polymerized parts

Info

Publication number
IL89977A0
IL89977A0 IL89977A IL8997789A IL89977A0 IL 89977 A0 IL89977 A0 IL 89977A0 IL 89977 A IL89977 A IL 89977A IL 8997789 A IL8997789 A IL 8997789A IL 89977 A0 IL89977 A0 IL 89977A0
Authority
IL
Israel
Prior art keywords
methods
partially polymerized
polymerized parts
curing partially
curing
Prior art date
Application number
IL89977A
Other languages
English (en)
Original Assignee
3D Systems Inc
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
Priority claimed from US07/183,016 external-priority patent/US4996010A/en
Application filed by 3D Systems Inc filed Critical 3D Systems Inc
Publication of IL89977A0 publication Critical patent/IL89977A0/xx

Links

Classifications

    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
    • B29C35/041—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using liquids
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/264—Arrangements for irradiation
    • B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/264—Arrangements for irradiation
    • B29C64/286—Optical filters, e.g. masks
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/35—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0827—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using UV radiation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0838—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using laser
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip
    • B29K2995/0073—Roughness, e.g. anti-slip smooth
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49013—Deposit layers, cured by scanning laser, stereo lithography SLA, prototyping
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S522/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S522/91—Treatment through an external filter or mask, nonphotograghic process

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Plasma & Fusion (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
IL89977A 1988-04-18 1989-04-17 Methods for curing partially polymerized parts IL89977A0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/183,016 US4996010A (en) 1988-04-18 1988-04-18 Methods and apparatus for production of three-dimensional objects by stereolithography
US07/268,429 US5076974A (en) 1988-04-18 1988-11-08 Methods of curing partially polymerized parts

Publications (1)

Publication Number Publication Date
IL89977A0 true IL89977A0 (en) 1989-12-15

Family

ID=26878652

Family Applications (1)

Application Number Title Priority Date Filing Date
IL89977A IL89977A0 (en) 1988-04-18 1989-04-17 Methods for curing partially polymerized parts

Country Status (7)

Country Link
US (1) US5076974A (de)
EP (1) EP0355944A3 (de)
JP (1) JPH04506322A (de)
KR (1) KR900700253A (de)
CA (1) CA1338954C (de)
IL (1) IL89977A0 (de)
WO (1) WO1989010249A1 (de)

Families Citing this family (65)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5143663A (en) * 1989-06-12 1992-09-01 3D Systems, Inc. Stereolithography method and apparatus
EP0425440B1 (de) * 1989-10-27 1994-11-17 Ciba-Geigy Ag Verfahren zur Abstimmung der Strahlungsempfindlichkeit von photopolymerisierbaren Zusammensetzungen
CA2036695A1 (en) * 1990-03-01 1991-09-02 Brian Gregory Chapman Solid imaging apparatus and method with coating station
US5626919A (en) * 1990-03-01 1997-05-06 E. I. Du Pont De Nemours And Company Solid imaging apparatus and method with coating station
US5094935A (en) * 1990-06-26 1992-03-10 E. I. Dupont De Nemours And Company Method and apparatus for fabricating three dimensional objects from photoformed precursor sheets
US5474719A (en) * 1991-02-14 1995-12-12 E. I. Du Pont De Nemours And Company Method for forming solid objects utilizing viscosity reducible compositions
US5677107A (en) * 1991-10-02 1997-10-14 Spectra Group Limited, Inc. Production of three-dimensional objects
USH1911H (en) * 1992-07-01 2000-11-07 The United States Of America As Represented By The Secretary Of The Air Force Curing optical material in a plane optical resonant cavity
US5427275A (en) * 1992-09-26 1995-06-27 Hansen; Bernd Dispenser cap with piercer
US7332537B2 (en) 1996-09-04 2008-02-19 Z Corporation Three dimensional printing material system and method
US5783136A (en) * 1996-09-09 1998-07-21 Ford Global Technologies, Inc. Method of preparing a stereolithographically produced prototype for experimental stress analysis
US6084980A (en) * 1997-05-13 2000-07-04 3D Systems, Inc. Method of and apparatus for deriving data intermediate to cross-sectional data descriptive of a three-dimensional object
US6103176A (en) * 1997-08-29 2000-08-15 3D Systems, Inc. Stereolithographic method and apparatus for production of three dimensional objects using recoating parameters for groups of layers
US6207097B1 (en) 1998-02-18 2001-03-27 Norma Jean Iverson Method for manufacturing physical objects using precision stereolithography
US6149856A (en) * 1998-11-13 2000-11-21 Anvik Corporation Ultraviolet-based, large-area scanning system for photothermal processing of composite structures
US7343960B1 (en) 1998-11-20 2008-03-18 Rolls-Royce Corporation Method and apparatus for production of a cast component
US6932145B2 (en) 1998-11-20 2005-08-23 Rolls-Royce Corporation Method and apparatus for production of a cast component
EP1024459A3 (de) 1999-01-19 2002-11-13 3D Systems, Inc. Verfahren und Vorrichtung zum Herstellen von dreidimensionalen Gegenständen mittels Stereolithografie
US6132667A (en) * 1999-02-08 2000-10-17 3D Systems, Inc. Stereolithographic method and apparatus with enhanced control of prescribed stimulation production and application
US6126884A (en) * 1999-02-08 2000-10-03 3D Systems, Inc. Stereolithographic method and apparatus with enhanced control of prescribed stimulation production and application
US6129884A (en) * 1999-02-08 2000-10-10 3D Systems, Inc. Stereolithographic method and apparatus with enhanced control of prescribed stimulation production and application
US6159411A (en) * 1999-02-08 2000-12-12 3D Systems, Inc. Rapid prototyping method and apparatus with simplified build preparation for production of three dimensional objects
US6325961B1 (en) 1999-02-08 2001-12-04 3D Systems, Inc. Stereolithographic method and apparatus with enhanced control of prescribed stimulation and application
US6399010B1 (en) 1999-02-08 2002-06-04 3D Systems, Inc. Method and apparatus for stereolithographically forming three dimensional objects with reduced distortion
US6261077B1 (en) 1999-02-08 2001-07-17 3D Systems, Inc. Rapid prototyping apparatus with enhanced thermal and/or vibrational stability for production of three dimensional objects
US6406658B1 (en) 1999-02-08 2002-06-18 3D Systems, Inc. Stereolithographic method and apparatus for production of three dimensional objects using multiple beams of different diameters
US6241934B1 (en) 1999-02-08 2001-06-05 3D Systems, Inc. Stereolithographic method and apparatus with enhanced control of prescribed stimulation production and application
JP4624626B2 (ja) 1999-11-05 2011-02-02 ズィー コーポレイション 材料システム及び３次元印刷法
US20010050031A1 (en) 2000-04-14 2001-12-13 Z Corporation Compositions for three-dimensional printing of solid objects
US6482576B1 (en) 2000-08-08 2002-11-19 Micron Technology, Inc. Surface smoothing of stereolithographically formed 3-D objects
AU2002239648A1 (en) * 2000-12-18 2002-07-01 The University Of Vermont And State Agricultural College Method of curing a photosensitive material using evanescent wave energy
US6699424B2 (en) 2001-06-29 2004-03-02 3D Systems, Inc. Method for forming three-dimensional objects
US8409670B2 (en) * 2002-05-27 2013-04-02 Tokuyama Corporation Process for producing photochromic layered product
US7211368B2 (en) * 2003-01-07 2007-05-01 3 Birds, Inc. Stereolithography resins and methods
US7041174B2 (en) * 2003-02-19 2006-05-09 Sunmodics,Inc. Grafting apparatus and method of using
US7098463B2 (en) * 2003-03-03 2006-08-29 Heuris Pharma, Llc Three-dimensional dosimeter for penetrating radiation and method of use
ATE530331T1 (de) 2003-05-21 2011-11-15 Z Corp Thermoplastisches pulvermaterialsystem für appearance models von 3d-drucksystemen
US20070020793A1 (en) * 2004-03-01 2007-01-25 Adamovics John A Three-dimensional shaped solid dosimeter and method of use
US7547978B2 (en) * 2004-06-14 2009-06-16 Micron Technology, Inc. Underfill and encapsulation of semiconductor assemblies with materials having differing properties
US7235431B2 (en) 2004-09-02 2007-06-26 Micron Technology, Inc. Methods for packaging a plurality of semiconductor dice using a flowable dielectric material
US8326037B1 (en) 2005-11-23 2012-12-04 Matrox Electronic Systems, Ltd. Methods and apparatus for locating an object in an image
JP5189598B2 (ja) 2006-12-08 2013-04-24 スリーディー システムズ インコーポレーテッド 過酸化物硬化を用いた三次元印刷材料系および方法
CN101616785B (zh) 2007-01-10 2014-01-08 3D系统公司 具有改进的颜色、制品性能和易用性的三维印刷材料体系
US7968626B2 (en) 2007-02-22 2011-06-28 Z Corporation Three dimensional printing material system and method using plasticizer-assisted sintering
US7923298B2 (en) 2007-09-07 2011-04-12 Micron Technology, Inc. Imager die package and methods of packaging an imager die on a temporary carrier
WO2010036203A1 (en) * 2008-09-23 2010-04-01 Siemens Medical Instruments Pte Ltd Curing system
US8678805B2 (en) 2008-12-22 2014-03-25 Dsm Ip Assets Bv System and method for layerwise production of a tangible object
BRPI0923627A2 (pt) 2008-12-22 2016-01-19 Nl Organisate Voor Toegepast Natuurwetenchappelijk Onderzoek Tno método e sistema para produção em camadas de um objeto tangível
US8777602B2 (en) 2008-12-22 2014-07-15 Nederlandse Organisatie Voor Tobgepast-Natuurwetenschappelijk Onderzoek TNO Method and apparatus for layerwise production of a 3D object
GB201016169D0 (en) * 2010-09-27 2010-11-10 Materialise Nv Method for reducing differential shrinkage in stereolithography
CA2874824C (en) 2012-06-01 2021-10-26 Surmodics, Inc. Apparatus and methods for coating balloon catheters
US9827401B2 (en) 2012-06-01 2017-11-28 Surmodics, Inc. Apparatus and methods for coating medical devices
US11090468B2 (en) 2012-10-25 2021-08-17 Surmodics, Inc. Apparatus and methods for coating medical devices
US10345703B2 (en) 2014-11-26 2019-07-09 Massachusetts Institute Of Technology Systems, devices, and methods for printing on three-dimensional objects
US10583647B2 (en) 2017-05-17 2020-03-10 Ford Motor Company Method of controlling warping in 3D printing
WO2019053785A1 (ja) * 2017-09-12 2019-03-21 オリンパス株式会社 レンズユニットの製造方法及びレンズユニット
DE102017130124B4 (de) 2017-12-15 2023-08-03 Technische Hochschule Wildau (Fh) Additives Fertigungsverfahren auf Basis von Polyisocyanaten
CN110539481A (zh) * 2018-05-28 2019-12-06 三纬国际立体列印科技股份有限公司 立体打印方法
WO2020112816A1 (en) 2018-11-29 2020-06-04 Surmodics, Inc. Apparatus and methods for coating medical devices
US11819590B2 (en) 2019-05-13 2023-11-21 Surmodics, Inc. Apparatus and methods for coating medical devices
US12496612B2 (en) 2021-01-08 2025-12-16 Surmodics, Inc. Coating application system and methods for coating rotatable medical devices
DE102021117025A1 (de) 2021-07-01 2023-01-05 Nippon Kornmeyer Carbon Group Gmbh Verfahren zur Herstellung von karbonisierten oder graphitierten Formteilen
US20240416583A1 (en) * 2021-11-05 2024-12-19 Massachusetts Institute Of Technology Methods, apparatus, compositions of matter, and articles of manufacture related to additive manufacturing of polymers
CN116000457B (zh) * 2022-12-06 2024-03-22 哈尔滨焊接研究院有限公司 激光同轴诱导多tig电弧多丝快速增材制造方法及制造系统
DE102025103331A1 (de) * 2025-01-30 2025-04-30 Mercedes-Benz Group AG Verfahren und Vorrichtung zum Nachvernetzen eines mittels Stereolithografieverfahren erzeugten Grünlings

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2395675A (en) * 1941-03-03 1946-02-26 Brunswick Balke Collender Co Method of hardening cast phenolic resin
US3723120A (en) * 1971-08-30 1973-03-27 Du Pont Process for hardening photohardenable images
US3842515A (en) * 1972-11-20 1974-10-22 Helium A Ltd Method for drying water-wet membranes
WO1980000249A1 (fr) * 1978-07-21 1980-02-21 Fischer Ag Georg Procede de preparation de corps a partir d'une lesine chargee et produit obtenu par le procede
US4575330A (en) * 1984-08-08 1986-03-11 Uvp, Inc. Apparatus for production of three-dimensional objects by stereolithography
US4603058A (en) * 1984-10-05 1986-07-29 Macdermid, Incorporated Post-treatment of cured, radiation sensitive, polymerizable resins to eliminate surface tack
ATE113746T1 (de) * 1986-06-03 1994-11-15 Cubital Ltd Gerät zur entwicklung dreidimensionaler modelle.
DE3636755A1 (de) * 1986-10-29 1988-05-05 Basf Ag Verfahren zur herstellung von hohlkoerpern

Also Published As

Publication number Publication date
JPH04506322A (ja) 1992-11-05
EP0355944A3 (de) 1991-09-25
CA1338954C (en) 1997-03-04
US5076974A (en) 1991-12-31
EP0355944A2 (de) 1990-02-28
WO1989010249A1 (en) 1989-11-02
KR900700253A (ko) 1990-08-11

Similar Documents

Publication Publication Date Title
GB8814705D0 (en) Method
GB8818880D0 (en) Modified polymers
EP0408357A3 (en) Polymerizable composition
GB8822145D0 (en) Method
EP0440108A3 (en) Method for curing resin
GB8813374D0 (en) Initiation methods
GB8827847D0 (en) Method
GB8829942D0 (en) Method
GB8815976D0 (en) Ethersulphone polymers
GB8806802D0 (en) New polymers
GB2254582B (en) Moulds
GB8803764D0 (en) Polymerisation process
EP0419737A3 (en) Molding method
GB2215265B (en) Moulds
GB8810354D0 (en) Method
GB8803765D0 (en) Polymerisation process
GB2225552B (en) Gang-pot mould
PL276494A1 (en) Method for the tionaphthene preparation
GB8804305D0 (en) Moulding method
ZA888268B (en) Moulding method
GB8828381D0 (en) Gang-pot mould
GB8804686D0 (en) Resin
GB8802806D0 (en) Moulding methods & apparatus
GB8820530D0 (en) Method
GB8820659D0 (en) Method

Legal Events

Date Code Title Description
KB Patent renewed
RH1 Patent not in force