EP0210245A1 - Expanded body belts for motor vehicles - Google Patents
Expanded body belts for motor vehiclesInfo
- Publication number
- EP0210245A1 EP0210245A1 EP86901082A EP86901082A EP0210245A1 EP 0210245 A1 EP0210245 A1 EP 0210245A1 EP 86901082 A EP86901082 A EP 86901082A EP 86901082 A EP86901082 A EP 86901082A EP 0210245 A1 EP0210245 A1 EP 0210245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- high frequency
- powder
- finished product
- pvc
- 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.)
- Ceased
Links
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000004088 foaming agent Substances 0.000 claims abstract description 12
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 230000001413 cellular effect Effects 0.000 claims abstract description 3
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 3
- 230000005684 electric field Effects 0.000 claims abstract description 3
- 238000002844 melting Methods 0.000 claims abstract 2
- 230000008018 melting Effects 0.000 claims abstract 2
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000008202 granule composition Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 abstract 3
- 238000010137 moulding (plastic) Methods 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229920000915 polyvinyl chloride Polymers 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229920002457 flexible plastic Polymers 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 239000002984 plastic foam Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920001944 Plastisol Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000004999 plastisol Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012260 resinous material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/44—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form
- B29C44/445—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in solid form in the form of expandable granules, particles or beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/251—Particles, powder or granules
Definitions
- the present invention relates to a new and advantageous process for the production of accessories known under the designation of "body belts" for automobiles.
- PVC polyvinyl styrene
- a sheet or a metal profile Because of their length, important compared to their width and their aesthetic role, their obtaining gives rise to additional difficulties, or more marked than for usual products.
- plastic molding is also known. e extremely decorative with cross sections of different shapes, as well as a beautiful appearance, especially at its ends. The fact that the cross section has different shapes also helps to strengthen the ability of the molding to absorb shock
- plastic foam products (its elasticity). It is very difficult to obtain, by a conventional procedure for the extrusion of plastics, a plastic molding which has deformability and a decorative character also asserted.
- Different types of processes are known for making plastic foam products, and in particular polyvinyl chloride (PVC) foam products.
- PVC polyvinyl chloride
- these known methods have drawbacks, which reside in that the materials that can be used are limited to plastisols, organosols or the like, that temporary foaming must be carried out in addition to the final forming; and that complex foaming operations must be carried out during heating, which increases the number of manufacturing steps and the cost of this manufacturing.
- the present invention achieves such a satisfactory result by a much simpler process and therefore eliminating this risk. It essentially consists in introducing into a mold having the dimensions corresponding to a copy of the finished product the quantity of the powder or granule mixture of PVC and foaming agent necessary and sufficient for obtaining this copy, to be deposited at the surface or inside of this mass of powder or granules the reinforcing element, iron the mold and subject it to the action of a high frequency electric field for the time necessary to cause the fu ⁇ PVC, and the decomposition of the foaming agent, and to extract from the mold the resulting finished product.
- the nature of the PVC and the foaming agent are f * ers con us in the art and is therefore pa need to discuss here in detail. It is the same for the implementation of molds with high frequency heating.
- the implementation of the reinforcing element or "sole" calls for the following comments:
- This sole can be formed by a metal strip (steel or aluminum) of variable thickness from 0.05 to 1 mm, or by a rigid plastic profile, or even by a fabric ribbon which can include glass fibers. Its purpose is threefold:
- a high frequency voltage is applied to heat the material so that the foaming agent contained in this material decomposes and causes its expansion to a shape predetermined by the mold, ensuring the same suddenly, a good bond with the sole that has been previously treated (lacquer, varnish or glue) in order to adhere strongly to the plastic.
- the invention therefore relates primarily to this process in a single operation. It also relates to the new industrial product constituted by the body belt for automobiles resulting from the implementation of this process and having the qualities sought after, namely:
Abstract
Procédé pour l'obtention de ceintures de caisses en matière plastique alvéolaire renforcée dans l'industrie automobile, du type faisant intervenir un chauffage par un champ électrique à haute fréquence, caractérisé en ce que l'on introduit directement dans un moule équipé d'électrodes à haute fréquence et ayant les dimensions correspondant au produit fini la quantité nécessaire et suffisante du mélange en poudre ou en granulés de PVC et d'agent moussant pour l'obtention de ce produit fini, on introduit sur ou dans la masse de poudre ou de granulé l'élement de renfort, on ferme le moule, on le soumet au champ à haute fréquence pendant le temps nécessaire à la fusion du PVC et au dégagement gazeux provenant de la décomposition de l'agent moussant, et on extrait du moule le produit fini résultant.Process for obtaining belts of boxes made of reinforced cellular plastic material in the automobile industry, of the type involving heating by a high frequency electric field, characterized in that it is introduced directly into a mold fitted with electrodes at high frequency and having the dimensions corresponding to the finished product, the necessary and sufficient quantity of the mixture of PVC powder or granules and of foaming agent for obtaining this finished product, powder or powder is introduced onto or into the mass. granulated the reinforcing element, the mold is closed, it is subjected to the high frequency field for the time necessary for the melting of the PVC and the gaseous evolution resulting from the decomposition of the foaming agent, and the product is extracted from the mold resulting finish.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8501020A FR2576248B1 (en) | 1985-01-23 | 1985-01-23 | EXPANDED BOX BELTS AND THEIR MANUFACTURING METHOD |
FR8501020 | 1985-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0210245A1 true EP0210245A1 (en) | 1987-02-04 |
Family
ID=9315583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86901082A Ceased EP0210245A1 (en) | 1985-01-23 | 1986-01-22 | Expanded body belts for motor vehicles |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0210245A1 (en) |
ES (1) | ES8701593A1 (en) |
FR (1) | FR2576248B1 (en) |
IT (1) | IT1215191B (en) |
WO (1) | WO1986004296A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2620376B2 (en) * | 1985-01-23 | 1990-02-09 | Silvatrim Sa | PROCESS FOR OBTAINING BOX BELTS IN REINFORCED ALVEOLAR PLASTIC MATERIAL |
MC1896A1 (en) * | 1987-09-15 | 1989-02-03 | Silvatrim Sa | PROCESS FOR OBTAINING BOX BELTS IN REINFORCED ALVEOLAR PLASTIC MATERIAL |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1178203B (en) * | 1962-03-15 | 1964-09-17 | Basf Ag | Process for the production of molded bodies from porous thermoplastics |
JPS5822154A (en) * | 1981-07-31 | 1983-02-09 | 株式会社イノアックコ−ポレ−ション | Flexible foamed shape and its manufacture |
US4459249A (en) * | 1982-01-22 | 1984-07-10 | Inoue Mtp Kabushiki Kaisha | Method of manufacturing a foamed protective and decorative molding for an automobile |
-
1985
- 1985-01-23 FR FR8501020A patent/FR2576248B1/en not_active Expired
-
1986
- 1986-01-22 EP EP86901082A patent/EP0210245A1/en not_active Ceased
- 1986-01-22 WO PCT/FR1986/000019 patent/WO1986004296A1/en not_active Application Discontinuation
- 1986-01-23 ES ES551649A patent/ES8701593A1/en not_active Expired
- 1986-09-22 IT IT8667724A patent/IT1215191B/en active
Non-Patent Citations (1)
Title |
---|
See references of WO8604296A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2576248B1 (en) | 1987-08-07 |
WO1986004296A1 (en) | 1986-07-31 |
IT1215191B (en) | 1990-01-31 |
IT8667724A0 (en) | 1986-09-22 |
FR2576248A1 (en) | 1986-07-25 |
ES551649A0 (en) | 1986-12-16 |
ES8701593A1 (en) | 1986-12-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1225509A (en) | Method and device for the manufacture of layered safety glass, and product thus made | |
CA2078394C (en) | Method of forming decorative trim strips | |
CH651248A5 (en) | PROCESS FOR PRODUCING A PROTECTIVE AND DECORATIVE MOLDING FOR AUTOMOBILE. | |
EP0524060A1 (en) | Method and device for making glazing with a polymer-based frame | |
WO1997002967A1 (en) | Hollow molded-to-shape expandable sealer | |
US5723199A (en) | Method of extruding two or more materials | |
KR0179387B1 (en) | Multilayer molded article and method for producing the same | |
EP0570282B1 (en) | Method for the adhesion of a profile on a glass sheet and glazing thus obtained | |
JPH03218808A (en) | Manufacture of lined molding | |
KR930019295A (en) | Elongated molded articles for vehicles and manufacturing method thereof | |
EP0332495B1 (en) | Process for manufacturing motor vehicle body parts, especially spoilers, and parts obtained by this process | |
EP3224013B1 (en) | Method for producing an overmoulded part and vehicle part obtained by said method | |
EP0210245A1 (en) | Expanded body belts for motor vehicles | |
JPH0632910A (en) | Production of article having thermally stable resin | |
BE1005387A3 (en) | Thermoplastic plate strengthened surface and methods for its implementation. | |
KR200167791Y1 (en) | An united variable insert door molding part | |
KR100424725B1 (en) | Manufacturing method of insert injection molding of automobile | |
FR2790424A1 (en) | Manufacture of back-injected, simultaneously-thermoformed moldings with stylish metallic surfaces, commences with laminar thermoplastic and stainless panel, and forms prestigious, internal and external vehicle trims and equipment | |
JPH04201424A (en) | Hollow non-rigid air spoiler-shaped body and forming method thereof | |
WO2019092342A1 (en) | Method for producing a moulded plastic part with a grained outer surface of higher quality | |
JPH02179721A (en) | Manufacture of bumper having closed section | |
JPS63112143A (en) | Manufacture of plate-shaped molding with frame part | |
KR100268836B1 (en) | Insert molding of one body type and making method thereof | |
EP4043184B1 (en) | Elastomer item comprising a textured surface such as velvet and method for manufacturing such an item | |
JP2007296896A (en) | Seal member for automobile |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE GB IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19870218 |
|
R17P | Request for examination filed (corrected) |
Effective date: 19870202 |
|
17Q | First examination report despatched |
Effective date: 19871102 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19891211 |
|
APAF | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BERRIN, GUY |