ES393939A1 - Moulded copolyester articles - Google Patents
Moulded copolyester articlesInfo
- Publication number
- ES393939A1 ES393939A1 ES393939A ES393939A ES393939A1 ES 393939 A1 ES393939 A1 ES 393939A1 ES 393939 A ES393939 A ES 393939A ES 393939 A ES393939 A ES 393939A ES 393939 A1 ES393939 A1 ES 393939A1
- Authority
- ES
- Spain
- Prior art keywords
- temperature
- sheets
- freezing
- plate
- plates
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
- C08G63/668—Polyesters containing oxygen in the form of ether groups derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/672—Dicarboxylic acids and dihydroxy compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Polyesters Or Polycarbonates (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Process for obtaining transparent molded parts of thermoplastic polyesters, free of striations, by embossing amorphous plates or sheets of thermoplastic polyesters of at least 80 mol-% of terephthalic acid and ethylene glycol residues characterized in that it comprises heating the plates or sheets at temperatures of 0 to 50ºC above the freezing temperature of the polyester, mold the plate, or sheet at this temperature by drawing, cooling the molded part obtained at 20ºC at least below the freezing and demolding temperature of the formed piece, the plate or polyester sheet having an intrinsic viscosity of at least 0.70 dl/g, a crystallization temperature of at least 160ºC and a specific weight of less than 1.336. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT724770A AT304086B (en) | 1970-08-07 | 1970-08-07 | Process for the production of transparent moldings by the deep-drawing process |
AT724870A AT304087B (en) | 1970-08-07 | 1970-08-07 | Process for the production of transparent moldings by the deep-drawing process |
Publications (1)
Publication Number | Publication Date |
---|---|
ES393939A1 true ES393939A1 (en) | 1974-07-01 |
Family
ID=25603693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES393939A Expired ES393939A1 (en) | 1970-08-07 | 1971-08-05 | Moulded copolyester articles |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2138753A1 (en) |
ES (1) | ES393939A1 (en) |
FR (1) | FR2102129B1 (en) |
GB (1) | GB1367133A (en) |
NL (1) | NL7110858A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE19718739A1 (en) * | 1997-05-02 | 1998-11-05 | Hoechst Ag | Amorphous plate with structured surface |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2828799A (en) * | 1955-10-10 | 1958-04-01 | Du Pont | Process of enveloping shaped objects |
-
1971
- 1971-07-23 GB GB3473971A patent/GB1367133A/en not_active Expired
- 1971-08-03 DE DE19712138753 patent/DE2138753A1/en active Pending
- 1971-08-05 ES ES393939A patent/ES393939A1/en not_active Expired
- 1971-08-06 NL NL7110858A patent/NL7110858A/xx unknown
- 1971-08-09 FR FR7129061A patent/FR2102129B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7110858A (en) | 1972-02-09 |
GB1367133A (en) | 1974-09-18 |
FR2102129B1 (en) | 1975-02-07 |
FR2102129A1 (en) | 1972-04-07 |
DE2138753A1 (en) | 1972-02-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69109605D1 (en) | Process for producing heat-insulating and / or objects having a specific structure and objects produced in this way. | |
ES421257A1 (en) | Method for producing receptacles from thermoplastic resin foam sheet | |
KR880011258A (en) | Thermoplastic resin composition | |
IT8621353A0 (en) | METHOD OF PRODUCTION OF CONTAINER MADE OF THERMOPLASTIC MATERIALS IN PARTICULAR FROM SHEETS OF AMORPHOUS LAMINATED POLYETHYLENTEREPHTHALATE THERMOFORMED AND MADE CRYSTALLINE AND HEAT-RESISTANT BY RAPID APPROACH TO TRANSACTION TEMPERATURE ON FORMING MOLD AND IMMEDIATE EXTRACTION WITH COLD AND SUCTION COUNTER MOLD AND CONTAINERS PRODUCED WITH IT. | |
FR2401759A1 (en) | PROCESS FOR PREPARING A HOLLOW PLASTIC CONTAINER HAVING A SURFACE RECALLING THAT OF DEPOLIED GLASS | |
ES393939A1 (en) | Moulded copolyester articles | |
ES197909U (en) | Rotary installation of molding of hollow bodies of plastic material by blowed extrusion. (Machine-translation by Google Translate, not legally binding) | |
BR7403069D0 (en) | APPLIANCE, MOLD AND PROCESS FOR LIQUID INJECTION MOLDING | |
ES388047A1 (en) | Process and apparatus for the continuous production of linear polyesters | |
BR7301933D0 (en) | APPLIANCE AND PROCESS FOR MOLDING hollow articles from thermoplastic sheet | |
ES348055A1 (en) | Mouldable polyester compositions containing finely divided pyrophyllite | |
ES335652A1 (en) | Procedure for the manufacture of molded bodies of expanded plastic. (Machine-translation by Google Translate, not legally binding) | |
IT1067776B (en) | THERMOPLASTIC POLYMER MATERIAL FOR MOTOR VEHICLES | |
CH462447A (en) | Process for vulcanizing molded articles | |
FR2305287A1 (en) | PROCESS FOR PREPARING POLYMERIC FILMS IN CRYSTALLIZABLE POLYESTERS | |
GB1102844A (en) | Process for producing injection moulding of articles from a moulding material based on polyesters | |
ES386695A1 (en) | Moulding articles of expandable thermoplastics material with a reinforcement | |
GB1002545A (en) | Improvements in and relating to the preparation of polyester blends | |
JP2532730B2 (en) | Molding method for crystalline polyethylene terephthalate sheet | |
ES393938A1 (en) | Procedure for obtaining molded bodies opaque, crystal, especially hollow bodies. (Machine-translation by Google Translate, not legally binding) | |
BE835453A (en) | PROCESS FOR MANUFACTURING PRODUCTS IN MOLDED SYNTHETIC PLASTIC MATERIAL | |
ES431947A1 (en) | Linear, thermoplastic polyesters and process for their manufacture | |
BR7404341D0 (en) | PROCESS FOR COLD STRETCHING OF MOLDED PLASTIC SHEETS | |
ES341047A1 (en) | Procedure for the obtaining of molded bodies of expanded plastic. (Machine-translation by Google Translate, not legally binding) | |
FR2243063A1 (en) | Thermoforming press for plastic strip - with pre-cooling tools permitting faster cooling of underformed zones |