GB1236432A - Improvements in or relating to processes for the manufacturing of shaped articles - Google Patents
Improvements in or relating to processes for the manufacturing of shaped articlesInfo
- Publication number
- GB1236432A GB1236432A GB4258268A GB4258268A GB1236432A GB 1236432 A GB1236432 A GB 1236432A GB 4258268 A GB4258268 A GB 4258268A GB 4258268 A GB4258268 A GB 4258268A GB 1236432 A GB1236432 A GB 1236432A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyethylene terephthalate
- sheet
- film
- vacuum forming
- heated
- 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
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
- 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
- B29C51/42—Heating or cooling
- B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
- B29C51/422—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
1,236,432. Vacuum forming sheets of polyethylene terephthalate. ALGEMENE KUNSTIZJDE UNIE. N.V. 6 Sept., 1968 [8 Sept., 1967], No. 42582/68. Heading B5A. Shaped articles of polyethylene terephthalate are made by heating a sheet or film of amorphous polyethylene terephthalate and vacuum forming the hot sheet or film, the part or parts of the sheet or film which are to be subjected to the greatest deformation in the vacuum forming step being subjected to an additional heat treatment to increase the crystallinity of the polymer. The sheet may be heated by infra-rod radiators to 90-120‹ C. with the particular parts thereof being additionally heated to 110-140‹ C. The shaped article formed may be heated at a temperature higher than that used at the beginning of the shaping operation so as to further increase the crystallinity of the polymer. The term polyethylene terephthalate includes copolymers containing not more than 10% of other units.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL6712321A NL6712321A (en) | 1967-09-08 | 1967-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1236432A true GB1236432A (en) | 1971-06-23 |
Family
ID=19801151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4258268A Expired GB1236432A (en) | 1967-09-08 | 1968-09-06 | Improvements in or relating to processes for the manufacturing of shaped articles |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT308397B (en) |
BE (1) | BE720425A (en) |
CH (1) | CH497966A (en) |
ES (1) | ES357903A1 (en) |
FR (1) | FR1579328A (en) |
GB (1) | GB1236432A (en) |
NL (1) | NL6712321A (en) |
SE (1) | SE346081B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2908548A1 (en) * | 1978-03-13 | 1979-09-20 | Plm Ab | REINFORCED PLASTIC CONTAINER |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH637893A5 (en) * | 1979-05-03 | 1983-08-31 | Tetra Pak Dev | METHOD FOR PRODUCING A CONTAINER. |
SE424286B (en) * | 1979-06-11 | 1982-07-12 | Plm Ab | PROCEDURE TO GET AN ARTICLE OF THERMOPLASTIC MATERIAL THROUGH TOWING, AND CONTAINERS MANUFACTURED AS SET |
SE424285B (en) * | 1979-06-11 | 1982-07-12 | Plm Ab | ELEMENTS OF THERMOPLASTIC MATERIALS WITH AN EDGE PART AND ONE, IN RELATION TO THIS, SUBMITTED BODY AND PROCEDURE FOR MANUFACTURE OF SAID ELEMENTS |
SE424420B (en) * | 1979-06-11 | 1982-07-19 | Plm Ab | MANUFACTURING OF ARTICLES BY DRAWING AND BLASHING |
EP0095865A3 (en) * | 1982-06-01 | 1984-02-08 | Celanese Corporation | Thermoformed shaped articles of thermotropic liquid crystal polymers and methods of production thereof |
US4619806A (en) * | 1985-03-15 | 1986-10-28 | The Procter & Gamble Company | Method of forming highly oriented thermoplastic articles |
-
1967
- 1967-09-08 NL NL6712321A patent/NL6712321A/xx unknown
-
1968
- 1968-09-05 BE BE720425D patent/BE720425A/xx not_active IP Right Cessation
- 1968-09-06 ES ES357903A patent/ES357903A1/en not_active Expired
- 1968-09-06 GB GB4258268A patent/GB1236432A/en not_active Expired
- 1968-09-06 SE SE1200768A patent/SE346081B/xx unknown
- 1968-09-06 CH CH1339068A patent/CH497966A/en not_active IP Right Cessation
- 1968-09-06 FR FR1579328D patent/FR1579328A/fr not_active Expired
- 1968-09-09 AT AT877768A patent/AT308397B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2908548A1 (en) * | 1978-03-13 | 1979-09-20 | Plm Ab | REINFORCED PLASTIC CONTAINER |
Also Published As
Publication number | Publication date |
---|---|
AT308397B (en) | 1973-07-10 |
ES357903A1 (en) | 1970-04-01 |
BE720425A (en) | 1969-02-17 |
NL6712321A (en) | 1967-11-27 |
CH497966A (en) | 1970-10-31 |
DE1779640A1 (en) | 1971-09-16 |
DE1779640B2 (en) | 1976-12-30 |
FR1579328A (en) | 1969-08-22 |
SE346081B (en) | 1972-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE308395B (en) | ||
GB1126034A (en) | Process for the production of moulded bodies from plates or films of polyethylene terephthalate | |
ES383835A1 (en) | Heat-shrinking package using foamed plastic sheet | |
GB1163547A (en) | A Method of Manufacturing Plastics/Articles by Pressure and/or Vacuum forming | |
GB1236432A (en) | Improvements in or relating to processes for the manufacturing of shaped articles | |
JPS5033285B1 (en) | ||
ES373756A1 (en) | High temperature bending | |
GB1455079A (en) | Appatatus and method for embossing thermoplastic film | |
GB1298737A (en) | Method of making plastics articles | |
JPS5573516A (en) | Manufacture of heat-resisting container from polyethylene terephthalate | |
GB1072185A (en) | Improvements in and relating to the manufacture of thermoplastic containers | |
GB485000A (en) | Manufacture of moulded masses from polyvinyl chloride | |
ES404249A1 (en) | Deforming thermoplastic sheet - by heating part of sheet and drawing out heated part | |
JPS5563230A (en) | Polypropylene sheet having improved moldability | |
GB1380781A (en) | Phototropic glass articles | |
FR2322710A1 (en) | Embossed thermoplastic films with high mechanical strength - produced by indirect heating and immediately passing over cooled embossing roller | |
GB1338324A (en) | Process for thermal-forming biaxially stretched thermoplastic resin sheet | |
GB1151651A (en) | Method of Manufacturing Objects Made Of Plastics Material And Installation For Performing The Same | |
ES441450A1 (en) | Manufacture of thin walled plastics material articles | |
GB960515A (en) | Process for bending glass sheets | |
FR2168224A2 (en) | Deforming thermoplastic sheet - by heating part of sheet and drawing out heated part | |
GB1052090A (en) | ||
GB783755A (en) | Improvements in and relating to the manufacture of shaped articles | |
GB1181786A (en) | Process for making Flat Oriented Film of Polymeric Material | |
GB1293010A (en) | Corrugated synthetic resin composition sheeting |