CA1173877A - Composite moulding system - Google Patents
Composite moulding systemInfo
- Publication number
- CA1173877A CA1173877A CA000341064A CA341064A CA1173877A CA 1173877 A CA1173877 A CA 1173877A CA 000341064 A CA000341064 A CA 000341064A CA 341064 A CA341064 A CA 341064A CA 1173877 A CA1173877 A CA 1173877A
- Authority
- CA
- Canada
- Prior art keywords
- molding
- plastic
- strip
- skin portion
- foamed
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B1/00—Layered products having a non-planar shape
-
- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
-
- 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
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/04—External Ornamental or guard strips; Ornamental inscriptive devices thereon
-
- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0221—Vinyl resin
- B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
-
- 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
- B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Abstract of the Disclosure.
An elongated decorative moulding suitable for use with automotive vehicles has a core portion of foamed plastic, and an outer portion of solid material such as a laminate secured thereto, to provide a finished coloured surface of enhanced appearance and durability. The use of a foamed core material such as foamed soft polyvinyl chloride reduces the mass of plastic required by a signi-ficant amount, and modifies the flexibility and impact characteristics favourably, while the use of a skin layer such as a laminate secured thereto permits the core material to be unpigmented, for significant savings.
An elongated decorative moulding suitable for use with automotive vehicles has a core portion of foamed plastic, and an outer portion of solid material such as a laminate secured thereto, to provide a finished coloured surface of enhanced appearance and durability. The use of a foamed core material such as foamed soft polyvinyl chloride reduces the mass of plastic required by a signi-ficant amount, and modifies the flexibility and impact characteristics favourably, while the use of a skin layer such as a laminate secured thereto permits the core material to be unpigmented, for significant savings.
Description
~173~377 This invention is dixected to a decorative moulding trim, and in partic~ar to an extruded plastic moulding of composite construction having a soft-foamed interior.
Widespread use is made in the automotive industry of decorative and protective trims, using flexible plastic extrusion having decorative colours embodied therein, the plastics in use being oil based, such as polyvinyl chloride(PVC).
It has been found that a superior decorative ~oulding is obtained in the combination of a foamed base extruded from a blown soft plastic such as soft PVC, combined with a surface fin~sh layer, at least on the working surface of the moulding. The improved system affords a saving in the material content of the base in the range of 25 to 40% by weight, due to the cellular structure provided by the blowing process.
Owing to the potential thinness of the moulding outer layer, which may be ~ither co-extruded;with the blown base, using a non-blown PVC or other suitable plastic or may be calendered laminate of polymeric formulation having a thickness generally in the range of 6 to 12 mils, which is applied to the ~r~
11~3~'77 hot extruded base, the quantity of the colouring pigmentation may be enormously reduced. Thus, by making possible the use of a laminate both to provide a finished surface and the ap-plication of colour to the molding, as much as about 95%
saving in pigmentation costs is made possible. In the case of metallic finishes, this is particularly significant in terms of cost savings.
The use of a laminate in combination with the blown base yields additional r unobvious advantages in that the cal-endering process by which the laminate is made permits perfect patterning over the whole face of the laminate. Thus, when the laminate is applied to the foamed base, there is complete uniformit~ of finish, even on the curved portions of the molding.
In the case of prior art finishing of extruded moldings where a patterned finish is embossed over a curved surface of the sec~
tion, difficulties are experienced in achieving the desired standard of finish uniformly over the section whose curv~d side surfaces may not ~e satisfactorily embossed. These dif-ficulties are overcome by the use of laminate finishes, in practicing the present invention.
It will be understood that the composite molding thus produced, having a foamed base combined with a surface finish layer may be suitably protected in well known fa~hion by the application thereover of protective coatings and layers, such as these applied to resist ultra violet degradation.
In addition to the foregoing cost and product advantages, the molding according to the present invention is possessed of greater flexibility, and in the case of certain applications at least, such as protective side moldings, has a greater impact cushioning capability than the previous "solid" moldings.
:117387~
Certain embodiments are described, reference being had to the accompanying drawings, wherein;
Figure 1 is a cross-sectional view of a ~olding according to the present invention, incorporating a laminate surface finish, Figure 2 is a similar view of a molding having an extruded outer layer, and Figure 3 is a similar view ~f the Fig. l embodiment having protective layers and adhesive attachment strips thereon.
Referring to Fig. 1, the illustrated molding 10 has a base portion 12 of extruded blown plastic with a laminate~
-outer ~overing 14 adhered thereto, comprising a laminate.
In the Fig. 2 embodiment the molding section 20 has a base portion 12 of extruded blown plastic, combined with an extruded skin layer portion 24 in overlying relation therewith, the skin 24 being of a suitable "solid'1 (i.e.
non-blown) plastic such as PVC.
~ he outer covering is applied to the hot base portion at or adjacent to the point of extrusion, to provide good adhesion. In the case of the Fig. 2 embodiment a co-extrusion simultaneously with the base 12 would generally be used.
In the Fig. 3 embodiment the complete molding 30 is shown, having base portion 12 of blown plastic, a laminate outer cover 14, a protective layer 36 to resist ultra violet radiation secured thereover, with protective edge seals 38, which do not form part of the present invention.
In addition, adhesive mounting strips 37 with pro-tective peelable paper overlayers 39 are provided for applying the molding.
~73~37~' SUPPI,EMENTARY DISCLOSURE.
In addition to the foregoing disclosure, it has been found that significant advantages in cost savings and material economy may be had in applying the laminating system to extruded, non-foamed base sections. Thus, by extruding a base section in a desired material such as polyvinyl chloride and then applying a desired finish surface as a solid laminata, including desired colouration, significant savings in pigmentation materials may be effected, the base section being generally non-coloured i.e.
having no pigmentation or other decorative material deliberately introduced thereinto.
A suitable non-blown material comprises plastic re-claimed in accordance with the process disclosed in our Canadian Patent No,1,141,094 issued February 8th,1983, Hatzikelis et al, entitled "Recycling of Contaminated Plastic". The recyled plastic possesses the inherent property of being of reduced density without requiring to be blown. The re^ycled plastic is generally inherently coloured from the feed material from which it is recovered, generally of an indeterm;na-te darkish colour, being considered non-coloured, unless specific s-teps are taken to add colour thereto.
Furthermore, in the event that the presence of un-desired defects in the base sec-tion are determined prior to the step of applying the decoratibe lamination, economic recovery of the defective extruded material is facilitated. The avoidance of contamina~kion of the reclaimed material, in the case of metallic finishes carried by the laminating tape is of particular value, as such contamination req~ res significantly cost]ier reclaimation.
Widespread use is made in the automotive industry of decorative and protective trims, using flexible plastic extrusion having decorative colours embodied therein, the plastics in use being oil based, such as polyvinyl chloride(PVC).
It has been found that a superior decorative ~oulding is obtained in the combination of a foamed base extruded from a blown soft plastic such as soft PVC, combined with a surface fin~sh layer, at least on the working surface of the moulding. The improved system affords a saving in the material content of the base in the range of 25 to 40% by weight, due to the cellular structure provided by the blowing process.
Owing to the potential thinness of the moulding outer layer, which may be ~ither co-extruded;with the blown base, using a non-blown PVC or other suitable plastic or may be calendered laminate of polymeric formulation having a thickness generally in the range of 6 to 12 mils, which is applied to the ~r~
11~3~'77 hot extruded base, the quantity of the colouring pigmentation may be enormously reduced. Thus, by making possible the use of a laminate both to provide a finished surface and the ap-plication of colour to the molding, as much as about 95%
saving in pigmentation costs is made possible. In the case of metallic finishes, this is particularly significant in terms of cost savings.
The use of a laminate in combination with the blown base yields additional r unobvious advantages in that the cal-endering process by which the laminate is made permits perfect patterning over the whole face of the laminate. Thus, when the laminate is applied to the foamed base, there is complete uniformit~ of finish, even on the curved portions of the molding.
In the case of prior art finishing of extruded moldings where a patterned finish is embossed over a curved surface of the sec~
tion, difficulties are experienced in achieving the desired standard of finish uniformly over the section whose curv~d side surfaces may not ~e satisfactorily embossed. These dif-ficulties are overcome by the use of laminate finishes, in practicing the present invention.
It will be understood that the composite molding thus produced, having a foamed base combined with a surface finish layer may be suitably protected in well known fa~hion by the application thereover of protective coatings and layers, such as these applied to resist ultra violet degradation.
In addition to the foregoing cost and product advantages, the molding according to the present invention is possessed of greater flexibility, and in the case of certain applications at least, such as protective side moldings, has a greater impact cushioning capability than the previous "solid" moldings.
:117387~
Certain embodiments are described, reference being had to the accompanying drawings, wherein;
Figure 1 is a cross-sectional view of a ~olding according to the present invention, incorporating a laminate surface finish, Figure 2 is a similar view of a molding having an extruded outer layer, and Figure 3 is a similar view ~f the Fig. l embodiment having protective layers and adhesive attachment strips thereon.
Referring to Fig. 1, the illustrated molding 10 has a base portion 12 of extruded blown plastic with a laminate~
-outer ~overing 14 adhered thereto, comprising a laminate.
In the Fig. 2 embodiment the molding section 20 has a base portion 12 of extruded blown plastic, combined with an extruded skin layer portion 24 in overlying relation therewith, the skin 24 being of a suitable "solid'1 (i.e.
non-blown) plastic such as PVC.
~ he outer covering is applied to the hot base portion at or adjacent to the point of extrusion, to provide good adhesion. In the case of the Fig. 2 embodiment a co-extrusion simultaneously with the base 12 would generally be used.
In the Fig. 3 embodiment the complete molding 30 is shown, having base portion 12 of blown plastic, a laminate outer cover 14, a protective layer 36 to resist ultra violet radiation secured thereover, with protective edge seals 38, which do not form part of the present invention.
In addition, adhesive mounting strips 37 with pro-tective peelable paper overlayers 39 are provided for applying the molding.
~73~37~' SUPPI,EMENTARY DISCLOSURE.
In addition to the foregoing disclosure, it has been found that significant advantages in cost savings and material economy may be had in applying the laminating system to extruded, non-foamed base sections. Thus, by extruding a base section in a desired material such as polyvinyl chloride and then applying a desired finish surface as a solid laminata, including desired colouration, significant savings in pigmentation materials may be effected, the base section being generally non-coloured i.e.
having no pigmentation or other decorative material deliberately introduced thereinto.
A suitable non-blown material comprises plastic re-claimed in accordance with the process disclosed in our Canadian Patent No,1,141,094 issued February 8th,1983, Hatzikelis et al, entitled "Recycling of Contaminated Plastic". The recyled plastic possesses the inherent property of being of reduced density without requiring to be blown. The re^ycled plastic is generally inherently coloured from the feed material from which it is recovered, generally of an indeterm;na-te darkish colour, being considered non-coloured, unless specific s-teps are taken to add colour thereto.
Furthermore, in the event that the presence of un-desired defects in the base sec-tion are determined prior to the step of applying the decoratibe lamination, economic recovery of the defective extruded material is facilitated. The avoidance of contamina~kion of the reclaimed material, in the case of metallic finishes carried by the laminating tape is of particular value, as such contamination req~ res significantly cost]ier reclaimation.
Claims (13)
1. An elongated decorative impact cushioning molding for use with vehicles comprising;
a)an extruded strip base section of pliable material having a predetermined substantially solid shaped cross section of foamed decoratively non-coloured plastic, with a curved outer surface and a substantially flat under surface having an adhesive mounting strip attached thereto and;
b)a decorative and protective skin portion incorporating decorative pigmentation applied as a preformed thin skin adherent to and covering solely the whole of said outer surface of the section in protective and con-cealing decorative relation therewith.
a)an extruded strip base section of pliable material having a predetermined substantially solid shaped cross section of foamed decoratively non-coloured plastic, with a curved outer surface and a substantially flat under surface having an adhesive mounting strip attached thereto and;
b)a decorative and protective skin portion incorporating decorative pigmentation applied as a preformed thin skin adherent to and covering solely the whole of said outer surface of the section in protective and con-cealing decorative relation therewith.
2. The molding as claimed in Claim 1, said skin layer por-tion having a protective coating thereover to resist ultra violet degradation.
3. The molding as claimed in Claim 1, said skin portion compeising an extruded portion.
4. The molding as claimed in Claim 1 wherein said strip is of non-coloured foamed plastic, said skin portion being coloured.
5. The molding as claimed in Claim 1, Claim 2 or Claim 3 including at least one protective layer overlying said skin portion.
6. The molding as claimed in Claim 2, said skin portion being calendered, pigmented laminate.
7. The molding as claimed in Claim 6, said laminate being pigmented to provide a. desired colour and appearance, having a thickness in the range of 6-12 mils.
8. The molding as claimed in Claim 2, Claim 6 or Claim 7, said skin portion being of non-blown polyvinyl chloride.
9. The molding as claimed in Claim 2, Claim 6 or Claim 7 said skin portion being coloured throughout by a metallic pigment.
10. The molding as claimed in Claim 1, Claim 2 or Claim 3, said foamed plastic strip comprising blown PVC.
11. The molding as claimed in Claim 1, Claim 2 or Claim 3, said foamed plastic strip having a density in the range of about 60 to 75% of non-blown plastic.
CLAIMS SUPPORTED BY SUPPLEMENTARY DISCLOSURE.
CLAIMS SUPPORTED BY SUPPLEMENTARY DISCLOSURE.
12. The molding as claimed in Claim 1, Claim 2 or Claim 3, said extruded base strip being of reclaimed plastic.
13. The molding as claimed in Claim 1, Claim 2 or Claim 3, said extruded base strip being of reclaimed plastic material possessing inherent reduced density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000341064A CA1173877A (en) | 1979-12-03 | 1979-12-03 | Composite moulding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000341064A CA1173877A (en) | 1979-12-03 | 1979-12-03 | Composite moulding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1173877A true CA1173877A (en) | 1984-09-04 |
Family
ID=4115736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000341064A Expired CA1173877A (en) | 1979-12-03 | 1979-12-03 | Composite moulding system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1173877A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3047965A1 (en) * | 2015-01-21 | 2016-07-27 | Giovanni Luca Somaschini | Adhesive unit for decoration and protection from wear and production method thereof |
| CN110062720A (en) * | 2016-12-09 | 2019-07-26 | Sika技术股份公司 | The damping element of printing |
-
1979
- 1979-12-03 CA CA000341064A patent/CA1173877A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3047965A1 (en) * | 2015-01-21 | 2016-07-27 | Giovanni Luca Somaschini | Adhesive unit for decoration and protection from wear and production method thereof |
| CN110062720A (en) * | 2016-12-09 | 2019-07-26 | Sika技术股份公司 | The damping element of printing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |