FR2388658A1 - RELEASE SHEET INCLUDING A FILM OF THERMOPLASTIC MATERIAL AND MOLDING PROCESS USING SUCH A SHEET - Google Patents

RELEASE SHEET INCLUDING A FILM OF THERMOPLASTIC MATERIAL AND MOLDING PROCESS USING SUCH A SHEET

Info

Publication number
FR2388658A1
FR2388658A1 FR7811853A FR7811853A FR2388658A1 FR 2388658 A1 FR2388658 A1 FR 2388658A1 FR 7811853 A FR7811853 A FR 7811853A FR 7811853 A FR7811853 A FR 7811853A FR 2388658 A1 FR2388658 A1 FR 2388658A1
Authority
FR
France
Prior art keywords
film
thermoplastic material
sheet
molding process
release
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.)
Granted
Application number
FR7811853A
Other languages
French (fr)
Other versions
FR2388658B1 (en
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.)
Imperial Chemical Industries Ltd
Original Assignee
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2388658A1 publication Critical patent/FR2388658A1/en
Application granted granted Critical
Publication of FR2388658B1 publication Critical patent/FR2388658B1/fr
Granted 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
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

L'invention concerne l'industrie des matières plastiques. Elle a pour objet l'utilisation de feuilles de démoulage comprenant une pellicule de matière thermoplastique se passant de support portant sur une face ou les deux, une couche de démoulage continue comprenant un homopolymère propre à former une pellicule issu d'un tel acrylate d'alkyle dont le radical alkyle compte jusqu'à 10 atomes de carbone ou d'un interpolymère propre a former une pellicule issue d'un tel acrylate d'alkyle et d'un ou plusieurs comonomères à non saturation éthylénique, l'homopolymère ou l'interpolymère ayant une température de transition vitreuse qui n'excède pas 30 degrés C et la ou chaque couche de démoulage ayant une épaisseur qui n'excède pas 0,5 micron. Ces feuilles de démoulage sont préférées pour le moulage des résines de polyester non saturées.The invention relates to the plastics industry. It relates to the use of release sheets comprising a film of thermoplastic material dispensing with a support bearing on one or both sides, a continuous release layer comprising a homopolymer capable of forming a film obtained from such an acrylate. alkyl in which the alkyl radical has up to 10 carbon atoms or of an interpolymer capable of forming a film resulting from such an alkyl acrylate and from one or more ethylenically unsaturated comonomers, the homopolymer or the interpolymer having a glass transition temperature not exceeding 30 degrees C and the or each release layer having a thickness not exceeding 0.5 micron. These release sheets are preferred for molding unsaturated polyester resins.

FR7811853A 1977-04-25 1978-04-21 RELEASE SHEET INCLUDING A FILM OF THERMOPLASTIC MATERIAL AND MOLDING PROCESS USING SUCH A SHEET Granted FR2388658A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17127/77A GB1590593A (en) 1977-04-25 1977-04-25 Moulding processes using coated thermoplastic mould release foils

Publications (2)

Publication Number Publication Date
FR2388658A1 true FR2388658A1 (en) 1978-11-24
FR2388658B1 FR2388658B1 (en) 1981-02-27

Family

ID=10089757

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811853A Granted FR2388658A1 (en) 1977-04-25 1978-04-21 RELEASE SHEET INCLUDING A FILM OF THERMOPLASTIC MATERIAL AND MOLDING PROCESS USING SUCH A SHEET

Country Status (13)

Country Link
JP (1) JPS53133261A (en)
AU (1) AU517494B2 (en)
BE (1) BE866350A (en)
DE (1) DE2816090C3 (en)
ES (1) ES469123A1 (en)
FR (1) FR2388658A1 (en)
GB (1) GB1590593A (en)
IT (1) IT1095314B (en)
LU (1) LU79512A1 (en)
NL (1) NL7804389A (en)
NZ (1) NZ186873A (en)
PT (1) PT67933B (en)
SE (1) SE7804530L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015997A1 (en) * 2014-07-31 2016-02-04 Tesa Se Method for moulding a body in a mould

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4396569A (en) * 1981-10-26 1983-08-02 Kelsey-Hayes Company Method of duplicating shapes and finishes
BR8405323A (en) * 1983-11-03 1985-09-03 Goodyear Tire & Rubber MOLDING PROCESS, BELT
CA1230526A (en) * 1983-12-09 1987-12-22 Martin J. Wilheim Mold release sheet and method of manufacture
JPS61272563A (en) * 1985-05-29 1986-12-02 株式会社荏原製作所 Exhaust-heat driving absorption refrigerator
US4871503A (en) * 1986-02-14 1989-10-03 Dai Nippon Insatsu Kabushiki Kaisha Method for producing molded products having unevenness tuned with ink patterns
FI74652C (en) * 1986-05-07 1988-03-10 Lillqvist Ann Mari FOERFARANDE OCH PLUGG FOER FRAMSTAELLNING AV LAMINERADE FOEREMAOL AV PLAST.
JPH0612922Y2 (en) * 1986-11-17 1994-04-06 藤森工業株式会社 Carrier-Film
TR199700579A2 (en) * 1997-07-03 1999-01-18 POLİFEN KİMYA SAN. ve TİC. A.Ş. Molding forms production using ATH-filled acrylic or polymethacrylate based mixtures with mold polymerization by using protective polyethylene foil in the mold.
DE10108253C1 (en) * 2001-02-21 2002-07-11 Bayern Chemie Gmbh Flugchemie Molding of articles from curable liquid, comprises deep drawing plastic sheet to form separating and carrier sheets, gluing them together, enclosing in mold filled with liquid containing cross-linking agent, and removing molding
DE102004006909A1 (en) * 2004-02-12 2005-08-25 Bayerische Motoren Werke Ag Positive component manufacturing method for producing reinforced composite vehicle parts involves use of a two part spacer layer between negative tool and molding material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652597A (en) * 1950-03-28 1953-09-22 Emsig Mfg Company Process for compression molding plastic materials
FR1564057A (en) * 1968-03-08 1969-04-18
FR2180561A1 (en) * 1972-04-21 1973-11-30 Cellophane Sa
FR2182057A2 (en) * 1972-04-27 1973-12-07 Ici Ltd

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2652597A (en) * 1950-03-28 1953-09-22 Emsig Mfg Company Process for compression molding plastic materials
FR1564057A (en) * 1968-03-08 1969-04-18
FR2180561A1 (en) * 1972-04-21 1973-11-30 Cellophane Sa
FR2182057A2 (en) * 1972-04-27 1973-12-07 Ici Ltd

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016015997A1 (en) * 2014-07-31 2016-02-04 Tesa Se Method for moulding a body in a mould
US9914859B2 (en) 2014-07-31 2018-03-13 Tesa Se Method for molding a body in a mold

Also Published As

Publication number Publication date
DE2816090A1 (en) 1978-10-26
SE7804530L (en) 1978-10-26
LU79512A1 (en) 1979-05-25
AU3484478A (en) 1979-10-11
IT1095314B (en) 1985-08-10
FR2388658B1 (en) 1981-02-27
NL7804389A (en) 1978-10-27
AU517494B2 (en) 1981-08-06
JPS53133261A (en) 1978-11-20
PT67933B (en) 1980-01-14
IT7822673A0 (en) 1978-04-24
GB1590593A (en) 1981-06-03
ES469123A1 (en) 1979-09-16
BE866350A (en) 1978-10-25
DE2816090B2 (en) 1981-05-07
DE2816090C3 (en) 1982-01-14
NZ186873A (en) 1980-11-14
PT67933A (en) 1978-05-01

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Legal Events

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