DE1965368C3 - Verfahren zur Herstellung von Schichtstoffen durch aufeinanderfolgendes Einspritzen von mindestens zwei Chargen aus Kunststoffmaterial in einen Formhohlraum - Google Patents

Verfahren zur Herstellung von Schichtstoffen durch aufeinanderfolgendes Einspritzen von mindestens zwei Chargen aus Kunststoffmaterial in einen Formhohlraum

Info

Publication number
DE1965368C3
DE1965368C3 DE1965368A DE1965368A DE1965368C3 DE 1965368 C3 DE1965368 C3 DE 1965368C3 DE 1965368 A DE1965368 A DE 1965368A DE 1965368 A DE1965368 A DE 1965368A DE 1965368 C3 DE1965368 C3 DE 1965368C3
Authority
DE
Germany
Prior art keywords
batch
mold cavity
injection
mold
foaming
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
Application number
DE1965368A
Other languages
German (de)
English (en)
Other versions
DE1965368A1 (de
DE1965368B2 (de
Inventor
Paul Johnson Garner
David Fairclough Oxley
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of DE1965368A1 publication Critical patent/DE1965368A1/de
Publication of DE1965368B2 publication Critical patent/DE1965368B2/de
Application granted granted Critical
Publication of DE1965368C3 publication Critical patent/DE1965368C3/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
    • B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
    • B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
DE1965368A 1968-12-31 1969-12-30 Verfahren zur Herstellung von Schichtstoffen durch aufeinanderfolgendes Einspritzen von mindestens zwei Chargen aus Kunststoffmaterial in einen Formhohlraum Expired DE1965368C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB61963/68A GB1255970A (en) 1968-12-31 1968-12-31 Improvements in or relating to the production of laminar articles

Publications (3)

Publication Number Publication Date
DE1965368A1 DE1965368A1 (de) 1970-07-16
DE1965368B2 DE1965368B2 (de) 1972-11-23
DE1965368C3 true DE1965368C3 (de) 1975-04-10

Family

ID=10487711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1965368A Expired DE1965368C3 (de) 1968-12-31 1969-12-30 Verfahren zur Herstellung von Schichtstoffen durch aufeinanderfolgendes Einspritzen von mindestens zwei Chargen aus Kunststoffmaterial in einen Formhohlraum

Country Status (10)

Country Link
JP (1) JPS501899B1 (enExample)
BE (1) BE743980A (enExample)
CH (1) CH493329A (enExample)
DE (1) DE1965368C3 (enExample)
ES (1) ES375022A1 (enExample)
FR (1) FR2027489B1 (enExample)
GB (1) GB1255970A (enExample)
NL (1) NL6919545A (enExample)
SE (1) SE355527B (enExample)
ZA (1) ZA699006B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390487A (en) * 1982-01-26 1983-06-28 Rca Corporation Method of making a laminated recorded disc
DK0657268T3 (da) * 1993-11-05 1999-11-29 Battenfeld Gmbh Fremgangsmåde og anordning til sprøjtestøbning af flerlagede genstande
FR2718382B1 (fr) * 1994-04-12 1996-07-12 Renault Procédé de moulage d'une charnière plastique et charnière obtenue par ce procédé.
US5902534A (en) * 1994-09-21 1999-05-11 Mitsubishi Engineering-Plastics Corp. Method of injection-molding thermoplastic resins
JP3643671B2 (ja) * 1997-04-01 2005-04-27 三井化学株式会社 自動車外装用部品の成形方法、その成形方法で使用される積層フィルムまたはシート、およびその自動車外装用部品
DE102006061068A1 (de) 2006-03-03 2007-09-06 Felo-Werkzeugfabrik Holland-Letz Gmbh Verfahren zur Herstellung eines Griffes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279724A (enExample) * 1961-06-20
US3363039A (en) * 1963-08-09 1968-01-09 Asahi Dow Ltd Injection molding processes for thermoplastic materials
GB1156217A (en) * 1967-05-03 1969-06-25 Ici Ltd Process for the Production of Cellular Articles

Also Published As

Publication number Publication date
JPS501899B1 (enExample) 1975-01-22
FR2027489B1 (enExample) 1973-12-21
DE1965368A1 (de) 1970-07-16
ES375022A1 (es) 1972-03-01
BE743980A (enExample) 1970-06-30
DE1965368B2 (de) 1972-11-23
GB1255970A (en) 1971-12-08
CH493329A (de) 1970-07-15
ZA699006B (en) 1971-08-25
NL6919545A (enExample) 1970-07-02
SE355527B (enExample) 1973-04-30
FR2027489A1 (enExample) 1970-09-25

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee