GB821899A - Improvements in or relating to tubular bodies - Google Patents
Improvements in or relating to tubular bodiesInfo
- Publication number
- GB821899A GB821899A GB20196/57A GB2019657A GB821899A GB 821899 A GB821899 A GB 821899A GB 20196/57 A GB20196/57 A GB 20196/57A GB 2019657 A GB2019657 A GB 2019657A GB 821899 A GB821899 A GB 821899A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- polyvinyl chloride
- tube
- sheets
- composite tube
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/14—Arrangements for the insulation of pipes or pipe systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
- F16L11/133—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting buoyant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
- F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
821,899. Tubes. LONZA ELECTRIC & CHEMICAL WORKS Ltd. June 26, 1957 [June 27, 1956], No. 20196/57. Class 99(2). A composite tube wall has a core 3, 3a of closed-cell cellular polyvinyl chloride or copolymer of vinyl chloride and cover members 2, 6 of hardened reinforced synthetic resin which adhere to the inner and outer faces respectively of the core member. The tube is made by winding a thin layer of glass fibres or glass fabric about a mandrel 1 formed of a steel pipe and impregnating the fibres with an unsaturated polyester resin which hardens forming the inner cover member 2. Sheets of polyvinyl chloride are heated and/or shaped to form the core 3, 3a with overlapping joints 4, the inner diameter corresponding to the outer diameter of the member 2 to which it is bonded by an adhesive. Deformation may be carried out by treating the cellular polyvinyl chloride sheets with a volatile solvent such as acetone or methyl ethyl ketone. The outer cover layer 6 is formed over the core by covering with a glass fibre layer which is impregnated with an unsaturated polyester resin which adheres to and covers the core. The polyvinyl chloride core may be free from or contain up to 20% plasticizer. The synthetic resins of the cover members 2, 6 may be of a liquid polyester mixture, e.g. based on maleic acid and a glycol to which is added a cross-linking component such as styrene ; alternatively, self-hardening resins based on isocyanates, urea or melamine may be used and, in addition, may also be used as adhesives. Further adhesives may be copolymers of vinyl chloride and vinyl acetate, cellulose nitrate or an epoxide resin with a hardener. Textile fabrics, foils of synthetic materials and metal braids may be used as alternative reinforcement for the cover members. The composite tube is sufficiently buoyant to float in water, may be used for floating pipe lines and has thermal and sound insulating properties. Further reinforced layers may be added to the outer cover member 6, and the mandrel tube 1 made of steel or rubber may be retained within the composite tube as a lining. An example is given of a tube made as described having inner and outer glass fibre members of 0À5-2 mm. thickness and a core made from flat sheets of polyvinyl chloride of 20 mm. thickness and 0À1 gram per cubic centimetre density.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1177918X | 1956-06-27 | ||
CH821899X | 1956-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB821899A true GB821899A (en) | 1959-10-14 |
Family
ID=33098763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20196/57A Expired GB821899A (en) | 1956-06-27 | 1957-06-26 | Improvements in or relating to tubular bodies |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1177918A (en) |
GB (1) | GB821899A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489183A (en) * | 1965-02-03 | 1970-01-13 | Gruenzweig & Hartmann | Extruded article |
DE2333933A1 (en) * | 1972-07-05 | 1974-01-24 | Midwesco Enterprise Inc | LOW TEMPERATURE INSULATING JACKET |
GB2271160A (en) * | 1992-10-01 | 1994-04-06 | Yong Goo Shin | High impact strength pipe |
CN102849317A (en) * | 2012-09-07 | 2013-01-02 | 深圳市通产丽星股份有限公司 | Multi-layer seamless hose and manufacturing method thereof |
FR3022607A1 (en) * | 2014-06-20 | 2015-12-25 | Sotra Seperef | RIGID PVC TUBE WITH AT LEAST THREE INTUMESCENT LAYERS AND FLAME RETARDER WITH MELAMINE |
CN109817397A (en) * | 2019-02-22 | 2019-05-28 | 湖南沃开新材料科技有限公司 | Multilayer composite insulating pipe and production method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3246755A1 (en) * | 1982-12-17 | 1984-06-20 | Richard 4937 Lage Pott | METHOD FOR PRODUCING A MOLDED BODY FROM COMPOSITE MATERIAL AND MOLDED BODY PRODUCED BY THIS METHOD |
CN109604105A (en) * | 2019-02-19 | 2019-04-12 | 山东恒宝绝热材料有限公司 | Draining device is used in a kind of embedded antiseptic fire-retardation rubber-plastic thermal insulation pipe production |
-
1957
- 1957-06-24 FR FR1177918D patent/FR1177918A/en not_active Expired
- 1957-06-26 GB GB20196/57A patent/GB821899A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3489183A (en) * | 1965-02-03 | 1970-01-13 | Gruenzweig & Hartmann | Extruded article |
DE2333933A1 (en) * | 1972-07-05 | 1974-01-24 | Midwesco Enterprise Inc | LOW TEMPERATURE INSULATING JACKET |
GB2271160A (en) * | 1992-10-01 | 1994-04-06 | Yong Goo Shin | High impact strength pipe |
GB2271160B (en) * | 1992-10-01 | 1996-06-12 | Yong Goo Shin | High impact strength pipe |
CN102849317A (en) * | 2012-09-07 | 2013-01-02 | 深圳市通产丽星股份有限公司 | Multi-layer seamless hose and manufacturing method thereof |
FR3022607A1 (en) * | 2014-06-20 | 2015-12-25 | Sotra Seperef | RIGID PVC TUBE WITH AT LEAST THREE INTUMESCENT LAYERS AND FLAME RETARDER WITH MELAMINE |
CN109817397A (en) * | 2019-02-22 | 2019-05-28 | 湖南沃开新材料科技有限公司 | Multilayer composite insulating pipe and production method thereof |
CN109817397B (en) * | 2019-02-22 | 2024-05-28 | 湖南沃开新材料科技有限公司 | Multilayer composite insulating tube and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
FR1177918A (en) | 1959-04-30 |
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