GB501649A - Improvements relating to the reinforcement of synthetic resinous materials and objects - Google Patents
Improvements relating to the reinforcement of synthetic resinous materials and objectsInfo
- Publication number
- GB501649A GB501649A GB2343437A GB2343437A GB501649A GB 501649 A GB501649 A GB 501649A GB 2343437 A GB2343437 A GB 2343437A GB 2343437 A GB2343437 A GB 2343437A GB 501649 A GB501649 A GB 501649A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impregnated
- mould
- heated
- resin
- excess
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
501,649. Moulding reinforced synthetic resin. BRUYNE, N. A. DE, AERO RESEARCH, Ltd., and DE HAVILLAND AIRCRAFT CO., Ltd. Aug. 26,1937, Nos. 23434/37 and 9941/38. [Class 87(ii)] Reinforced synthetic material or objects having a large dimension relative to the crosssection, such as planks or rings, are made by placing lengths of resin-impregnated flax or linen rove in a mould that is kept hot as a whole or for a substantial part of its length for a certain time, and applying localized pressure for a less time, or transiently until the whole of the contents have been subjected to pressure. The compressed material or object is finally hardened in the mould by heat without pressure. In the form shown in Fig. 2, lengths of flax or linen rove that has been impregnated with phenol-formaldehyde resin and dried on a square-section openwork drum, is placed in a long open-topped mould 4 beneath a sheet 22 of steel. The mould is traversed step by step through a press having a heated platen 10 or plunger and a heated bed. The sides of the mould are protected from being forced outwardly by wedge members carried by the platen 10 and co-operating with inclined walls of the heated bed. In another form, the mould 31, Fig. 9, is placed in a heated member 32 and the material 30 is compressed beneath a flexible steel sheet 44 by a roller 34 of a weighted truck 35 guided on rails 38. Specification 470,331 is referred to. According to the first Provisional Specification, synthetic resin binder is used in such quantity that little excess is squeezed out of the impregnated material during the hot pressing operation. The resin may be applied in a volatile solvent. In some cases, impregnated threads are drawn through heated dies to remove the excess binder, or the excess may be taken up by interspersing unimpregnated material with the impregnated material. In other cases, threads are drawn through a small bath of fused resin binder and thence through a comb to remove the excess. Such threads are then formed into tapes by drawing them through a heated slit. Slivers may be encased in a metal gauze or perforated support during impregnation and drying, or the fibre, before going into the drawing frame, may be impregnated, and, as it leaves the frame, pressed by heated rolls. According to the second Provisional Specification, the trough in which the material is moulded may be jacketed for heating-fluid, and may be lagged with heat-insulating material. As impregnated rove is laid in the trough, further resin may be packed in.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2343437A GB501649A (en) | 1937-08-26 | 1937-08-26 | Improvements relating to the reinforcement of synthetic resinous materials and objects |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2343437A GB501649A (en) | 1937-08-26 | 1937-08-26 | Improvements relating to the reinforcement of synthetic resinous materials and objects |
Publications (1)
Publication Number | Publication Date |
---|---|
GB501649A true GB501649A (en) | 1939-02-27 |
Family
ID=10195555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2343437A Expired GB501649A (en) | 1937-08-26 | 1937-08-26 | Improvements relating to the reinforcement of synthetic resinous materials and objects |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB501649A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859936A (en) * | 1954-03-03 | 1958-11-11 | Cincinnati Testing & Res Lab | Compressor blade and method of forming same |
WO2007025782A1 (en) * | 2005-09-02 | 2007-03-08 | Joris Van Raemdonck | Method for preparing thermosetting or thermoplastic polymer or elastomer composites that are reinforced with natural fibers, and their multiple applications as construction material |
-
1937
- 1937-08-26 GB GB2343437A patent/GB501649A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2859936A (en) * | 1954-03-03 | 1958-11-11 | Cincinnati Testing & Res Lab | Compressor blade and method of forming same |
WO2007025782A1 (en) * | 2005-09-02 | 2007-03-08 | Joris Van Raemdonck | Method for preparing thermosetting or thermoplastic polymer or elastomer composites that are reinforced with natural fibers, and their multiple applications as construction material |
US8080288B2 (en) | 2005-09-02 | 2011-12-20 | Lineo Nv | Method for preparing thermosetting or thermoplastic polymer or elastomer composites that are reinforced with natural fibers, and their multiple applications as construction material |
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