ES2097885T3 - Metodo de obtencion de productos moldeados por compresion. - Google Patents

Metodo de obtencion de productos moldeados por compresion.

Info

Publication number
ES2097885T3
ES2097885T3 ES92309124T ES92309124T ES2097885T3 ES 2097885 T3 ES2097885 T3 ES 2097885T3 ES 92309124 T ES92309124 T ES 92309124T ES 92309124 T ES92309124 T ES 92309124T ES 2097885 T3 ES2097885 T3 ES 2097885T3
Authority
ES
Spain
Prior art keywords
article
pellet
nozzle
resin
mold
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES92309124T
Other languages
English (en)
Inventor
Keith W Ingram
Timothy W Miller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BPrex Healthcare Brookville Inc
Original Assignee
Owens Illinois Closure 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
Application filed by Owens Illinois Closure Inc filed Critical Owens Illinois Closure Inc
Application granted granted Critical
Publication of ES2097885T3 publication Critical patent/ES2097885T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/10—Extrusion moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • 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
    • B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
    • B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
    • B29C31/042—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • B29C31/048—Feeding of the material to be moulded, e.g. into a mould cavity using dispensing heads, e.g. extruders, placed over or apart from the moulds the material being severed at the dispensing head exit, e.g. as ring, drop or gob, and transported immediately into the mould, e.g. by gravity
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the cylinders
    • B29C48/832—Heating
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C2043/046—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds travelling between different stations, e.g. feeding, moulding, curing stations
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/34—Feeding the material to the mould or the compression means
    • B29C2043/3433—Feeding the material to the mould or the compression means using dispensing heads, e.g. extruders, placed over or apart from the moulds
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/006—Degassing moulding material or draining off gas during moulding
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B29K2105/0032—Pigments, colouring agents or opacifiyng agents
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • 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
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • 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
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Robotics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Molding Of Porous Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

SE PRESENTA UN METODO DE MOLDEADO POR COMPRESION EN EL QUE UNA RESINA TERMOPLASTICA SE MEZCLA CON ADITIVOS QUE INCLUYEN UN ADITIVO COLORANTE METALICO, LA RESINA SE EXTRUDE A TRAVES DE UNA BOQUILLA, SE CORTA MEDIANTE UNA HOJA EN FORMA DE TROZOS INDIVIDUALES, Y CADA TROZO SE DEPOSITA EN EL INTERIOR DE LA CAVIDAD DE UN MOLDE QUE POSTERIORMENTE SE CIERRA PARA MOLDEAR POR COMPRESION EL TROZO DE RESINA Y DARLE LA FORMA DEL ARTICULO, EL METODO COMPRENDE LOS PASOS DE AÑADIR UN AGENTE ESPUMANTE A LA RESINA ANTES DE LA EXTRUSION EN UNA CANTIDAD SUFICIENTE PARA DISTRIBUIR LAS PARTICULAS METALICAS EN EL ADITIVO DEL PIGMENTO METALICO DE MANERA QUE SE FORMEN BURBUJAS GASEOSAS EN LA RESINA FUNDIDA EXTRUDIDA Y QUE LAS BURBUJAS GASEOSAS SEAN SUBSTANCIALMENTE EXPELIDAS DURANTE EL MOLDEADO POR COMPRESION DANDO COMO RESULTADO UN ARTICULO QUE ESTA SUBSTANCIALMENTE LIBRE DE LOS DEFECTOS QUE SE PRODUCEN NORMALMENTE. PREFERIBLEMENTE, EL METODO INCLUYE EL POSICIONAMIENTO DE UNA PLANCHA MEZCLADORA EN EL CAMINO DE LARESINA INMEDIATAMENTE ANTES DE LA BOQUILLA.
ES92309124T 1991-10-08 1992-10-07 Metodo de obtencion de productos moldeados por compresion. Expired - Lifetime ES2097885T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/773,167 US5328650A (en) 1991-10-08 1991-10-08 Method of distributing pigments in compression molded products

Publications (1)

Publication Number Publication Date
ES2097885T3 true ES2097885T3 (es) 1997-04-16

Family

ID=25097405

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92309124T Expired - Lifetime ES2097885T3 (es) 1991-10-08 1992-10-07 Metodo de obtencion de productos moldeados por compresion.

Country Status (10)

Country Link
US (2) US5328650A (es)
EP (1) EP0536988B1 (es)
JP (1) JPH0712618B2 (es)
AT (1) ATE149411T1 (es)
AU (1) AU654744B2 (es)
CA (1) CA2079425C (es)
DE (1) DE69217806T2 (es)
ES (1) ES2097885T3 (es)
MX (1) MX9205682A (es)
ZA (1) ZA927721B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5328650A (en) * 1991-10-08 1994-07-12 Owens Illinois Closure Inc. Method of distributing pigments in compression molded products
US5958587A (en) * 1997-04-21 1999-09-28 Owens-Illinois Closure Inc. Method of removing blemishes in compression molded articles
US6974556B2 (en) * 2000-02-29 2005-12-13 Bemis Manufacturing Company Co-injection apparatus for injection molding
CA2364050A1 (en) 2000-11-30 2002-05-30 Bemis Manufacturing Company Co-injection methods using endothermic-blowing agents and products made therefrom
JP4677684B2 (ja) * 2001-05-30 2011-04-27 株式会社豊田中央研究所 高分子−フィラー複合材料の製造方法
US6702967B2 (en) * 2001-07-27 2004-03-09 E. I. Du Pont De Nemours And Company Process for preparing decorative surface materials having a decorative pattern
US6733269B2 (en) * 2002-04-09 2004-05-11 Marland Mold, Inc. Compression mold tool
US7951449B2 (en) 2002-06-27 2011-05-31 Wenguang Ma Polyester core materials and structural sandwich composites thereof
WO2005070644A1 (en) * 2004-01-09 2005-08-04 The Coca-Cola Company Condensation compression molding process and apparatus for production of container preforms
AU2010286558A1 (en) * 2009-08-28 2012-03-01 Closure Systems International, Inc. Method of compression molding a plastic closure from foamed polymeric material
WO2012018338A1 (en) * 2010-08-05 2012-02-09 Ford Global Technologies, Llc Foamed resin injection molding apparatus and method
IT201600081886A1 (it) * 2016-08-03 2018-02-03 Sacmi Apparato e metodo di formazione di oggetti plastici colorati ottimizzato

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089857A (en) * 1960-04-12 1963-05-14 Koppers Co Inc Storage stable expandable polymeric composition containing expandable polymeric particles and two different blowing agents and method of making same
GB1121654A (en) * 1964-08-13 1968-07-31 Dunlop Semtex Ltd Method of making thermoplastic sheet material
US3640861A (en) * 1969-11-26 1972-02-08 Frye Ind Inc Process of making toner
US3655863A (en) * 1970-01-09 1972-04-11 Monsanto Co Method of making a contoured composite product
US3962154A (en) * 1971-06-01 1976-06-08 Standard Oil Company Method for producing an improved molded thermoplastic article
US4164385A (en) * 1978-05-12 1979-08-14 Henkel Kommanditgesellschaft Auf Aktien Extruder with mixing chambers
GB1595850A (en) * 1978-05-31 1981-08-19 Hpm Corp Extruder with multi-channel wave screw
US4302410A (en) * 1979-04-24 1981-11-24 Phillips Cables Limited Method producing a color coded, cellular thermoplastic resin coated wire and the materials necessary for the coating
US4374795A (en) * 1980-09-11 1983-02-22 Bell Telephone Laboratories, Incorporated Production of mold charge of elastomeric material containing magnetic oxide filler
US4596684A (en) * 1981-07-30 1986-06-24 Toyo Rubber Chemical Industrial Corporation Method for manufacturing low density rubber foamed body
US4459249A (en) * 1982-01-22 1984-07-10 Inoue Mtp Kabushiki Kaisha Method of manufacturing a foamed protective and decorative molding for an automobile
US4552708A (en) * 1983-10-14 1985-11-12 Mitsubishi Petrochemical Co., Ltd. Method for producing crosslinked foam
JPS60110731A (ja) * 1983-11-21 1985-06-17 Shin Etsu Chem Co Ltd 発泡成形物用塩化ビニル系樹脂組成物
US4548776A (en) * 1983-11-23 1985-10-22 Techplastics, Inc. Method and apparatus for molding structural foam articles
US4755343A (en) * 1986-09-10 1988-07-05 United Technologies Corporation Method of molding using a solid flowable polymer medium with metal additives
JPS6375044A (ja) * 1986-09-17 1988-04-05 Toto Ltd 連続気孔多孔体の製造方法
US4891399A (en) * 1986-10-28 1990-01-02 Calp Corporation Thermoplastic resin-based molding composition
US5023041A (en) * 1987-12-10 1991-06-11 General Electric Company Method for making a fiber reinforced composite article
US5328650A (en) * 1991-10-08 1994-07-12 Owens Illinois Closure Inc. Method of distributing pigments in compression molded products

Also Published As

Publication number Publication date
AU2618492A (en) 1993-04-22
JPH0712618B2 (ja) 1995-02-15
DE69217806T2 (de) 1997-06-19
AU654744B2 (en) 1994-11-17
EP0536988A2 (en) 1993-04-14
JPH05318511A (ja) 1993-12-03
MX9205682A (es) 1993-07-01
DE69217806D1 (de) 1997-04-10
ATE149411T1 (de) 1997-03-15
EP0536988B1 (en) 1997-03-05
US5603873A (en) 1997-02-18
CA2079425A1 (en) 1993-04-09
CA2079425C (en) 2001-03-27
EP0536988A3 (en) 1993-06-23
US5328650A (en) 1994-07-12
ZA927721B (en) 1993-04-19

Similar Documents

Publication Publication Date Title
ES2097885T3 (es) Metodo de obtencion de productos moldeados por compresion.
JPS57169335A (en) Injection-compression molding method
DE3260413D1 (en) Stabilized core injection molding of plastic
DE69119430D1 (de) Spritzgussverfahren
GR3025274T3 (en) A molding apparatus and method for molding a plastic article of varying density.
KR100767030B1 (ko) 몰딩가능한 물질의 몰딩
JPS5423661A (en) Continuous extrusion molding of thermosetting resin
GB976615A (en) A method of and apparatus for compression molding articles of plastic materials
Ingram et al. Method of making compression molded products
EP0865894B1 (en) Process for producing sandwich-like synthetic resin molded article
CN105216255A (zh) 一种热塑性塑料薄壁熔体连续直接模压成型方法
JPS5627336A (en) Injection molding method
JPS6424715A (en) Injection molding process
JPS5490268A (en) Production of synthetic resin foam
JPS57140122A (en) Reclamation of solid matter-adhering thermoplastic film
JPS6416620A (en) Confirmation of material flow route in reaction injection molding
JPS56139942A (en) Molding of resin part
CA2235432A1 (en) Method of removing blemishes in compression molded articles
JPS5678927A (en) Kneading and extrusion granulating apparatus of thermosetting resing molding material
JPS5782025A (en) Fiber reinforced, low ratio foaming, thick plate manufactured by extrusion molding
JPS57165235A (en) Mold for injection molding
JPS55156032A (en) Skin attached foamed blow molded article for full-molding and method of fabricating the same
GB1393723A (en) Process for introducing a pigment into plastic
JPS57170728A (en) Plastic foam molded object
Kawaguchi et al. Compression Moulding Synthetic Resin, and Extruder Apparatus for Feeding Synthetic Resin

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 536988

Country of ref document: ES