FR2322898A1 - Gas-permeable smooth or relief surfaces - for vacuum forming moulds, produced from epoxide-glass ball compsns. contg. hardeners - Google Patents

Gas-permeable smooth or relief surfaces - for vacuum forming moulds, produced from epoxide-glass ball compsns. contg. hardeners

Info

Publication number
FR2322898A1
FR2322898A1 FR7626672A FR7626672A FR2322898A1 FR 2322898 A1 FR2322898 A1 FR 2322898A1 FR 7626672 A FR7626672 A FR 7626672A FR 7626672 A FR7626672 A FR 7626672A FR 2322898 A1 FR2322898 A1 FR 2322898A1
Authority
FR
France
Prior art keywords
contg
gas
compsns
hardeners
epoxide
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.)
Withdrawn
Application number
FR7626672A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of FR2322898A1 publication Critical patent/FR2322898A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/16—Solid spheres
    • C08K7/18—Solid spheres inorganic
    • C08K7/20—Glass
    • 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
    • B29C33/3807—Resin-bonded materials, e.g. inorganic particles
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
    • B29C51/365—Porous moulds
    • 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
    • B29K2863/00—Use of EP, i.e. epoxy resins or derivatives thereof as mould material

Abstract

Gas-permeable surfaces, having a smooth or relief structure and being free from pinholes, appropriate for moulds used in vacuum-forming techniques, are obtd. by using a moulding compsn. contg. (a) 5-10% of a polyepoxy resin-hardener mixt. and (b) 90-95% of solid glass balls of dia. 2-150 mu for the mfr. of the surface layers of the mould. The surface has many distinct edges with many suction canals distributed uniformly over the entire surface of the mould such that a bore-hole is not required. The structure of the surface of the mould is transferred faithfully to the thermoplastic moulding material.
FR7626672A 1975-09-05 1976-09-03 Gas-permeable smooth or relief surfaces - for vacuum forming moulds, produced from epoxide-glass ball compsns. contg. hardeners Withdrawn FR2322898A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752539598 DE2539598A1 (en) 1975-09-05 1975-09-05 PROCESS FOR PRODUCING GAS PERMEABLE SURFACES OF VACUUM DRAWING FORMS

Publications (1)

Publication Number Publication Date
FR2322898A1 true FR2322898A1 (en) 1977-04-01

Family

ID=5955731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7626672A Withdrawn FR2322898A1 (en) 1975-09-05 1976-09-03 Gas-permeable smooth or relief surfaces - for vacuum forming moulds, produced from epoxide-glass ball compsns. contg. hardeners

Country Status (6)

Country Link
JP (1) JPS5232049A (en)
BE (1) BE845809A (en)
DE (1) DE2539598A1 (en)
FR (1) FR2322898A1 (en)
NL (1) NL7609788A (en)
SE (1) SE7609704L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345276A1 (en) * 1976-03-24 1977-10-21 Dynamit Nobel Ag PROCESS FOR MANUFACTURING A MOLD FROM RESINS REACTIVE WITH LOADS AND MOLD THUS OBTAINED
EP0012589A1 (en) * 1978-12-11 1980-06-25 Norcem A/S A method of moulding shaped articles and an apparatus for carrying out the method
FR2635026A1 (en) * 1988-08-02 1990-02-09 Chausson Usines Sa Method for the manufacture of tools based on polymer (resin) concrete for forming, especially drawing (stamping), cutting-out and other processes, of workpieces (components) made of metal sheet
EP0359601A1 (en) * 1988-08-02 1990-03-21 Chausson Ingenierie Process for the manufacture of moulding tools, especially for deep-drawing parts out of sheet metal
FR2738766A1 (en) * 1995-09-14 1997-03-21 Pmr Sarl Mould useful esp. for injection moulding thermoplastic materials

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5716589A (en) * 1980-06-30 1982-01-28 Fuji Electric Co Ltd Driving device for motor
JPS5892419A (en) * 1981-11-27 1983-06-01 Toyobo Co Ltd Selective separation membrane
JPS60225605A (en) * 1984-04-23 1985-11-09 Agency Of Ind Science & Technol Permselective membrane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2345276A1 (en) * 1976-03-24 1977-10-21 Dynamit Nobel Ag PROCESS FOR MANUFACTURING A MOLD FROM RESINS REACTIVE WITH LOADS AND MOLD THUS OBTAINED
EP0012589A1 (en) * 1978-12-11 1980-06-25 Norcem A/S A method of moulding shaped articles and an apparatus for carrying out the method
FR2635026A1 (en) * 1988-08-02 1990-02-09 Chausson Usines Sa Method for the manufacture of tools based on polymer (resin) concrete for forming, especially drawing (stamping), cutting-out and other processes, of workpieces (components) made of metal sheet
EP0359601A1 (en) * 1988-08-02 1990-03-21 Chausson Ingenierie Process for the manufacture of moulding tools, especially for deep-drawing parts out of sheet metal
FR2738766A1 (en) * 1995-09-14 1997-03-21 Pmr Sarl Mould useful esp. for injection moulding thermoplastic materials

Also Published As

Publication number Publication date
SE7609704L (en) 1977-03-06
NL7609788A (en) 1977-03-08
DE2539598A1 (en) 1977-03-10
BE845809A (en) 1977-03-03
JPS5232049A (en) 1977-03-10

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Legal Events

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ST Notification of lapse