GB474426A - Improvements in or relating to films and their manufacture - Google Patents
Improvements in or relating to films and their manufactureInfo
- Publication number
- GB474426A GB474426A GB1220236A GB1220236A GB474426A GB 474426 A GB474426 A GB 474426A GB 1220236 A GB1220236 A GB 1220236A GB 1220236 A GB1220236 A GB 1220236A GB 474426 A GB474426 A GB 474426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polymer
- films
- softening temperature
- temperature
- temperature above
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/06—Polyethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Solid ethylene polymer (which may contain a small amount of oxygen) is shaped at a temperature above its softening temperature, i.e. above about 110 DEG C., solidified by cooling and rolled or cut into one or more thin strips or sheets. The polymer, which may be prepared according to the process described in Specification 471,590, may be shaped by extrusion, or by passing it through a pair of rollers, of which one is kept at a temperature above the softening temperature and the other is kept cold. According to another method, the polymer is applied as a powder or as a solution to the surface of a solid or a heavy liquid, e.g. mercury, and is heated to a temperature above the softening temperature, where necessary after evaporation of the solvent, so as to produce a continuous film. The polymer employed preferably has a molecular weight of 4000 or 6000 or more. The strength of the films may be increased by subjecting them to cold rolling, e.g. so as to reduce the thickness of the material to about one-fifth. According to the Provisional Specification, the properties of the films may be modified by incorporating polystyrenes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1220236A GB474426A (en) | 1936-04-29 | 1936-04-29 | Improvements in or relating to films and their manufacture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1220236A GB474426A (en) | 1936-04-29 | 1936-04-29 | Improvements in or relating to films and their manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB474426A true GB474426A (en) | 1937-10-29 |
Family
ID=10000207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1220236A Expired GB474426A (en) | 1936-04-29 | 1936-04-29 | Improvements in or relating to films and their manufacture |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB474426A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE946357C (en) * | 1951-10-06 | 1956-08-02 | Fritz Mueller Coroplas K G | Weatherproof insulated electrical cable |
DE959327C (en) * | 1938-05-03 | 1957-03-07 | Ici Ltd | Plastic mass made of polyethylene |
AT403123B (en) * | 1990-01-19 | 1997-11-25 | Yamaha Corp | METHOD FOR PRODUCING A SKI TREAD COVER |
EP1191571A2 (en) * | 2000-09-22 | 2002-03-27 | Matsushita Electric Industrial Co., Ltd. | Mercury-containing material, method for producing the same and fluorescent lamp using the same |
-
1936
- 1936-04-29 GB GB1220236A patent/GB474426A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959327C (en) * | 1938-05-03 | 1957-03-07 | Ici Ltd | Plastic mass made of polyethylene |
DE946357C (en) * | 1951-10-06 | 1956-08-02 | Fritz Mueller Coroplas K G | Weatherproof insulated electrical cable |
AT403123B (en) * | 1990-01-19 | 1997-11-25 | Yamaha Corp | METHOD FOR PRODUCING A SKI TREAD COVER |
EP1191571A2 (en) * | 2000-09-22 | 2002-03-27 | Matsushita Electric Industrial Co., Ltd. | Mercury-containing material, method for producing the same and fluorescent lamp using the same |
EP1191571A3 (en) * | 2000-09-22 | 2005-08-03 | Matsushita Electric Industrial Co., Ltd. | Mercury-containing material, method for producing the same and fluorescent lamp using the same |
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