GB1198911A - Process for Repressing Sheets and Foils of Thermoplastic Synthetic Material - Google Patents

Process for Repressing Sheets and Foils of Thermoplastic Synthetic Material

Info

Publication number
GB1198911A
GB1198911A GB864568A GB864568A GB1198911A GB 1198911 A GB1198911 A GB 1198911A GB 864568 A GB864568 A GB 864568A GB 864568 A GB864568 A GB 864568A GB 1198911 A GB1198911 A GB 1198911A
Authority
GB
United Kingdom
Prior art keywords
sheets
press
sheet
temperature
polished
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
GB864568A
Inventor
Gunter Peilstocker
Kurt Blank
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
Compagnie de Saint Gobain SA
Original Assignee
Bayer AG
Compagnie de Saint Gobain SA
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, Compagnie de Saint Gobain SA filed Critical Bayer AG
Publication of GB1198911A publication Critical patent/GB1198911A/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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • 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
    • B29K2909/00—Use of inorganic materials not provided for in groups B29K2803/00 - B29K2807/00, as mould material
    • B29K2909/08—Glass
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets
    • 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
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/008—Wide strips, e.g. films, webs

Abstract

1,198,911. Moulding polished sheets or films. FARBENFABRIKEN BAYER A.G. 22 Feb., 1968 [23 Feb., 1967], No. 8645/68. Headings B5A and B5B. Films or sheets of synthetic thermoplastic material are given a smooth scratch free polished surface by hot pressing them between the platens of a press, allowing the sheet to cool in the press, and relieving the pressure at a temperature between the solidification temperature of the thermoplastic material and the temperature at which the adhesive friction between the press plates and the sheet is overcome and slippage occurs. The platens of the press themselves may be highly polished, or a highly polished glass plate may be interposed between each platen and the sheet. If desired layers of paper may be interposed between each platen and its associated glass plate.
GB864568A 1967-02-23 1968-02-22 Process for Repressing Sheets and Foils of Thermoplastic Synthetic Material Expired GB1198911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0051610 1967-02-23

Publications (1)

Publication Number Publication Date
GB1198911A true GB1198911A (en) 1970-07-15

Family

ID=7104755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB864568A Expired GB1198911A (en) 1967-02-23 1968-02-22 Process for Repressing Sheets and Foils of Thermoplastic Synthetic Material

Country Status (10)

Country Link
AT (1) AT291538B (en)
BE (1) BE711184A (en)
CH (1) CH458709A (en)
DE (1) DE1704630A1 (en)
DK (1) DK116900B (en)
FR (1) FR1553623A (en)
GB (1) GB1198911A (en)
LU (1) LU55483A1 (en)
NL (1) NL6802621A (en)
SE (1) SE339101B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327149A (en) 1979-01-10 1982-04-27 Asahi Kasei Kogyo Kabushiki Kaisha Extruded rigid thermoplastic sheet having optically smooth surfaces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2951662B1 (en) * 2009-10-22 2012-03-23 Univ Claude Bernard Lyon METHOD AND MICRO-THERMOFORMING MACHINE FOR REALIZING MICROSTRUCTURES ON A WORKPIECE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4327149A (en) 1979-01-10 1982-04-27 Asahi Kasei Kogyo Kabushiki Kaisha Extruded rigid thermoplastic sheet having optically smooth surfaces

Also Published As

Publication number Publication date
SE339101B (en) 1971-09-27
DK116900B (en) 1970-02-23
CH458709A (en) 1968-06-30
LU55483A1 (en) 1968-04-29
NL6802621A (en) 1968-08-26
DE1704630A1 (en) 1971-05-19
AT291538B (en) 1971-07-26
FR1553623A (en) 1969-01-10
BE711184A (en) 1968-08-23

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Legal Events

Date Code Title Description
PS Patent sealed