ZA699006B - Improvements in or relating to the production of laminar articles - Google Patents

Improvements in or relating to the production of laminar articles

Info

Publication number
ZA699006B
ZA699006B ZA699006*A ZA699006A ZA699006B ZA 699006 B ZA699006 B ZA 699006B ZA 699006 A ZA699006 A ZA 699006A ZA 699006 B ZA699006 B ZA 699006B
Authority
ZA
South Africa
Prior art keywords
relating
production
laminar articles
laminar
articles
Prior art date
Application number
ZA699006*A
Other languages
English (en)
Inventor
P Garner
D Oxley
Original Assignee
Ici 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 Ici Ltd filed Critical Ici Ltd
Publication of ZA699006B publication Critical patent/ZA699006B/xx

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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)
ZA699006*A 1968-12-31 1969-12-30 Improvements in or relating to the production of laminar articles ZA699006B (en)

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 (1)

Publication Number Publication Date
ZA699006B true ZA699006B (en) 1971-08-25

Family

ID=10487711

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA699006*A ZA699006B (en) 1968-12-31 1969-12-30 Improvements in or relating to the production of laminar articles

Country Status (10)

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

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 (es) * 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
CH493329A (de) 1970-07-15
NL6919545A (es) 1970-07-02
SE355527B (es) 1973-04-30
DE1965368C3 (de) 1975-04-10
GB1255970A (en) 1971-12-08
FR2027489A1 (es) 1970-09-25
FR2027489B1 (es) 1973-12-21
DE1965368B2 (de) 1972-11-23
DE1965368A1 (de) 1970-07-16
JPS501899B1 (es) 1975-01-22
BE743980A (es) 1970-06-30
ES375022A1 (es) 1972-03-01

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