FR2141873A1 - - Google Patents

Info

Publication number
FR2141873A1
FR2141873A1 FR7221245A FR7221245A FR2141873A1 FR 2141873 A1 FR2141873 A1 FR 2141873A1 FR 7221245 A FR7221245 A FR 7221245A FR 7221245 A FR7221245 A FR 7221245A FR 2141873 A1 FR2141873 A1 FR 2141873A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7221245A
Other languages
French (fr)
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.)
Structural Foam Products Inc
Original Assignee
Structural Foam Products 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 Structural Foam Products Inc filed Critical Structural Foam Products Inc
Publication of FR2141873A1 publication Critical patent/FR2141873A1/fr
Withdrawn legal-status Critical Current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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/421—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by plastizising the material into a shot cavity and injecting using a plunger
    • 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
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • 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
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • B29C44/425—Valve or nozzle constructions; Details of injection devices
    • B29C44/427—Valve or nozzle constructions; Details of injection devices having several injection gates
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam
FR7221245A 1971-06-14 1972-06-13 Withdrawn FR2141873A1 (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15261271A 1971-06-14 1971-06-14

Publications (1)

Publication Number Publication Date
FR2141873A1 true FR2141873A1 (en:Method) 1973-01-26

Family

ID=22543643

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7221245A Withdrawn FR2141873A1 (en:Method) 1971-06-14 1972-06-13

Country Status (5)

Country Link
US (1) US3746492A (en:Method)
DE (2) DE7222252U (en:Method)
FR (1) FR2141873A1 (en:Method)
GB (1) GB1400292A (en:Method)
IT (1) IT958372B (en:Method)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941529A (en) * 1970-06-01 1976-03-02 Union Carbide Corporation Apparatus for forming thermoplastic articles
US3891362A (en) * 1971-06-14 1975-06-24 Structural Foam Products Apparatus for molding foamed thermoplastic articles
US3952927A (en) * 1974-04-26 1976-04-27 Standard Oil Company Injection nozzle having guides for nozzle rod
US4255367A (en) * 1978-09-21 1981-03-10 Standard Oil Company (Indiana) Method for injection molding articles wherein additives are added in selective portions
US5531581A (en) * 1995-03-27 1996-07-02 Donnell, Jr.; Emerson B. Ajustable injection molding apparatus
US5599568A (en) * 1995-08-10 1997-02-04 Donnell, Jr.; Emerson B. Adjustable injection molding apparatus for creating of products within a mold from fluid plastic material
US6052470A (en) * 1996-09-04 2000-04-18 Victor Company Of Japan, Ltd. System for processing audio surround signal
DE69825615T2 (de) * 1997-04-02 2005-07-21 Coraltech Ltd., Petersfield Gaseinführung
US7754134B2 (en) 2007-11-08 2010-07-13 Wagner Michael S Injection molding process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478013A (en) * 1942-02-09 1949-08-02 Fred M Roddy Process for preparing and fashioning thermoplastic and thermosetting materials
US3253303A (en) * 1962-06-20 1966-05-31 Rexford H Bradt Injection molding apparatus
US3516123A (en) * 1966-10-03 1970-06-23 Theo O Lang Injection molding machine
US3535742A (en) * 1967-07-31 1970-10-27 Paul Marcus Molding apparatus valve and nozzle
US3674401A (en) * 1969-12-22 1972-07-04 Usm Corp Apparatus for injection molding articles of foam material

Also Published As

Publication number Publication date
GB1400292A (en) 1975-07-16
IT958372B (it) 1973-10-20
US3746492A (en) 1973-07-17
DE7222252U (de) 1973-09-20
DE2228969A1 (de) 1973-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse