GB1154965A - Moulding Plastic Materials - Google Patents

Moulding Plastic Materials

Info

Publication number
GB1154965A
GB1154965A GB1131467A GB1131467A GB1154965A GB 1154965 A GB1154965 A GB 1154965A GB 1131467 A GB1131467 A GB 1131467A GB 1131467 A GB1131467 A GB 1131467A GB 1154965 A GB1154965 A GB 1154965A
Authority
GB
United Kingdom
Prior art keywords
cavity
mass
mould cavity
porous material
injected
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
GB1131467A
Inventor
Leslie Isaac Bloom
Roy Harvey Hupfield
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.)
HUPFIELD BROTHERS Ltd
Imperial Chemical Industries Ltd
Original Assignee
HUPFIELD BROTHERS Ltd
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 HUPFIELD BROTHERS Ltd, Imperial Chemical Industries Ltd filed Critical HUPFIELD BROTHERS Ltd
Priority to GB1131467A priority Critical patent/GB1154965A/en
Publication of GB1154965A publication Critical patent/GB1154965A/en
Expired 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds
    • B29C44/588—Moulds with means for venting, e.g. releasing foaming gas
    • 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
    • B29C44/0415—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 regulating the pressure of the material during or after filling of the mould, e.g. by local venting
    • 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
    • B29C45/26—Moulds
    • B29C45/34—Moulds having venting means
    • B29C45/345—Moulds having venting means using a porous mould wall or a part thereof, e.g. made of sintered metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1,154,965. Injection moulding. IMPERIAL CHEMICAL INDUSTRIES Ltd., and HUPFIELD BROS. Ltd. 27 Feb., 1968 [10 March, 1967], No. 11314/67. Heading B5A. A molten mass of synthetic thermoplastic material containing a heat decomposable blowing agent is injected into a mould cavity, the temperature of the mass being controlled so that the agent decomposes before or as the mass is injected, and at least a part of the surface of the mould cavity is of a chemically inert microporous material so that gas evolved in the cavity is removed via the porous material. The latter may be plaster of Paris or a sintered microporous metal, e.g. steel, iron, aluminium, copper or bronze. The synthetic thermoplastic material may include polyamides, or ethylene, propylene, styrene, vinyl chloride, vinyl acetate, acrylonitrile, methyl methacrylate, butadiene and isoprene. The process may be used) for the production of a shoe sole, which may be moulded directly on to a shoe upper. The porous material of the mould cavity may communicate with atmosphere or not; in the latter case the gas is removed by absorption. The moulded foam material articles have surfaces free from blemishes at those parts which were in contact with the porous material of the cavity.
GB1131467A 1967-03-10 1967-03-10 Moulding Plastic Materials Expired GB1154965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1131467A GB1154965A (en) 1967-03-10 1967-03-10 Moulding Plastic Materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1131467A GB1154965A (en) 1967-03-10 1967-03-10 Moulding Plastic Materials

Publications (1)

Publication Number Publication Date
GB1154965A true GB1154965A (en) 1969-06-11

Family

ID=9983989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1131467A Expired GB1154965A (en) 1967-03-10 1967-03-10 Moulding Plastic Materials

Country Status (1)

Country Link
GB (1) GB1154965A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813105A1 (en) * 1998-03-25 1999-09-30 Daimler Chrysler Ag Molding fiber composite components avoiding air inclusions and rejects
DE10105770A1 (en) * 2001-02-08 2002-08-14 Volkswagen Ag Twin slush skin molding process, involves extraction of trapped air and gas from an expandable layer through a porous male punch wall
EP1314532A1 (en) * 2001-11-23 2003-05-28 An der Heiden, Dominik Mould
WO2008112813A3 (en) * 2007-03-12 2009-02-12 Univ Washington Foaming methods for making cellular thermoplastic materials
EP2357070A1 (en) 2010-02-12 2011-08-17 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Injection moulding method for condensation resins and device for the method
WO2015017090A1 (en) * 2013-08-02 2015-02-05 Nike Innovate C.V. Method for producing thermoplastic foamed article and thermoplastic foamed article
WO2015017088A1 (en) * 2013-08-02 2015-02-05 Nike Innovate C.V. Low density foam, midsole, footwear, and methods for making low density foam
KR101798796B1 (en) * 2013-08-02 2017-11-16 나이키 이노베이트 씨.브이. Low density foamed articles and methods for making

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19813105A1 (en) * 1998-03-25 1999-09-30 Daimler Chrysler Ag Molding fiber composite components avoiding air inclusions and rejects
DE19813105C2 (en) * 1998-03-25 2001-03-01 Daimler Chrysler Ag Process for the production of fiber composite components
DE10105770A1 (en) * 2001-02-08 2002-08-14 Volkswagen Ag Twin slush skin molding process, involves extraction of trapped air and gas from an expandable layer through a porous male punch wall
EP1314532A1 (en) * 2001-11-23 2003-05-28 An der Heiden, Dominik Mould
WO2008112813A3 (en) * 2007-03-12 2009-02-12 Univ Washington Foaming methods for making cellular thermoplastic materials
US7923104B2 (en) 2007-03-12 2011-04-12 University Of Washington Bimodal cellular thermoplastic materials
US8092626B2 (en) 2007-03-12 2012-01-10 University Of Washington Foaming methods for making cellular thermoplastic materials
US8357319B2 (en) 2007-03-12 2013-01-22 University Of Washington Foaming methods for making cellular thermoplastic materials
US9481774B2 (en) 2007-03-12 2016-11-01 University Of Washington Methods for altering the impact strength of noncellular thermoplastic materials
EP2357070A1 (en) 2010-02-12 2011-08-17 Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. Injection moulding method for condensation resins and device for the method
DE102010007780A1 (en) * 2010-02-12 2011-08-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 80686 Injection molding process for condensation resins and apparatus for the process
WO2015017088A1 (en) * 2013-08-02 2015-02-05 Nike Innovate C.V. Low density foam, midsole, footwear, and methods for making low density foam
US20150038607A1 (en) * 2013-08-02 2015-02-05 Nike, Inc. Method and thermoplastic foamed article
CN105451956A (en) * 2013-08-02 2016-03-30 耐克创新有限合伙公司 Method for producing thermoplastic foamed article and thermoplastic foamed article
WO2015017090A1 (en) * 2013-08-02 2015-02-05 Nike Innovate C.V. Method for producing thermoplastic foamed article and thermoplastic foamed article
CN105451956B (en) * 2013-08-02 2017-10-03 耐克创新有限合伙公司 Method and thermoplastic expanded product for producing thermoplastic expanded product
KR101798796B1 (en) * 2013-08-02 2017-11-16 나이키 이노베이트 씨.브이. Low density foamed articles and methods for making
US9919458B2 (en) 2013-08-02 2018-03-20 Nike, Inc. Method and thermoplastic foamed article
US9926423B2 (en) 2013-08-02 2018-03-27 Nike, Inc. Low density foam, midsole, footwear, and methods for making low density foam
US9963566B2 (en) 2013-08-02 2018-05-08 Nike, Inc. Low density foamed articles and methods for making
US10227467B2 (en) 2013-08-02 2019-03-12 Nike, Inc. Low density foam, midsole, footwear, and methods for making low density foam
US10232533B2 (en) 2013-08-02 2019-03-19 Nike, Inc. Method and thermoplastic foamed article
TWI658076B (en) * 2013-08-02 2019-05-01 荷蘭商耐基創新公司 Low density foam, midsole, footwear, and methods for making low density foam
TWI659053B (en) * 2013-08-02 2019-05-11 荷蘭商耐基創新公司 Method and thermoplastic foamed article

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