FR2080186A5 - Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester - Google Patents

Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester

Info

Publication number
FR2080186A5
FR2080186A5 FR7006872A FR7006872A FR2080186A5 FR 2080186 A5 FR2080186 A5 FR 2080186A5 FR 7006872 A FR7006872 A FR 7006872A FR 7006872 A FR7006872 A FR 7006872A FR 2080186 A5 FR2080186 A5 FR 2080186A5
Authority
FR
France
Prior art keywords
formers
prodn
glass fibre
storage tanks
destructible
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
FR7006872A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7006872A priority Critical patent/FR2080186A5/en
Application granted granted Critical
Publication of FR2080186A5 publication Critical patent/FR2080186A5/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/40—Plastics, e.g. foam or rubber
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/448—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles destructible
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/302—Details of the edges of fibre composites, e.g. edge finishing or means to avoid delamination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • 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
    • 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
    • B29K2875/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as mould material
    • 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
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7126—Containers; Packaging elements or accessories, Packages large, e.g. for bulk storage

Abstract

Formers are assembled from components made of a destructible material (e.g. polyurethane foam) on which structures may be built, after which the formers are broken up or dissolved and removed from the interior of the structure. Formers are esp. suitable in the prodn. of seamless storage tanks from wound or laid up glass fibre-reinforced polyester resin. Foamed polymers are used in the prodn. of strong, stiff but friable structures. The moulded former components are reproducible.
FR7006872A 1970-02-26 1970-02-26 Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester Expired FR2080186A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7006872A FR2080186A5 (en) 1970-02-26 1970-02-26 Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7006872A FR2080186A5 (en) 1970-02-26 1970-02-26 Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester

Publications (1)

Publication Number Publication Date
FR2080186A5 true FR2080186A5 (en) 1971-11-12

Family

ID=9051301

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7006872A Expired FR2080186A5 (en) 1970-02-26 1970-02-26 Destructible formers - used in prodn of storage tanks from glass fibre-reinforced polyester

Country Status (1)

Country Link
FR (1) FR2080186A5 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse