Molded article and process for preparing same

• US 20030205844A1
• Filed: 05/16/2003
• Published: 11/06/2003
• Est. Priority Date: 05/21/2001
• Status: Abandoned Application

• Current Assignee: Arthur K. Delusky, Stephen P. Mccarthy, Thomas M. Ellison
• Original Assignee: Arthur K. Delusky, Stephen P. Mccarthy, Thomas M. Ellison
• Inventors: McCarthy, Stephen P., Ellison, Thomas M., Delusky, Arthur K.
• Application Number:
  US10/439,460
• Publication Number:
  US 20030205844A1
• Time in Patent Office: Days
• US Class Current: 264/259
• CPC Class Codes: B29C 2043/023 having a plurality of grooves
• CPC Class Codes: B29C 2043/3433 using dispensing heads, e.g. extruders, placed over or apart from the moulds
• CPC Class Codes: B29C 2043/3438 moving during dispensing over the moulds, e.g. laying up
• CPC Class Codes: B29C 2043/3461 for foils, sheets, gobs, e.g. floated
• CPC Class Codes: B29C 31/044 with moving heads for distributing liquid or viscous material into the moulds
• CPC Class Codes: B29C 37/0057 Moulding single grooves or ribs, e.g. tear lines folding lines B29C53/06
• CPC Class Codes: B29C 43/00 Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor by liberation of internal stresses B29C61/006
• CPC Class Codes: B29C 43/10 Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
• CPC Class Codes: B29C 43/146 for making multilayered articles
• CPC Class Codes: B29C 43/184 shaped by the compression of the material during moulding
• CPC Class Codes: B29C 43/203 Making multilayered articles
• CPC Class Codes: B29C 48/0011 combined with compression moulding
• CPC Class Codes: B29C 48/07 Flat, e.g. panels
• CPC Class Codes: B29C 48/21 the layers being joined at their surfaces
• CPC Class Codes: B29C 51/262 Clamping means for the sheets, e.g. clamping frames
• CPC Class Codes: B29C 69/02 of moulding techniques only
• CPC Class Codes: B29L 2031/3005 Body finishings
• CPC Class Codes: B29L 2031/3041 Trim panels
• CPC Class Codes: B65G 21/06 constructed to facilitate rapid assembly or dismantling
• CPC Class Codes: B65G 21/2072 Laterial guidance means
• CPC Class Codes: Y10T 428/24479 : including variation in thickness

Abstract

The molded article includes at least one compression molded plastic layer having an inner surface and an outer surface thereof, and at least one plastic projection, as a boss or rib, extending from and bonded to the inner surface of the compression molded plastic layer. An outer plastic film is desirably bonded to the compression molded plastic layer and desirably compression molded therewith.

Claims

1. Molded article, which comprises:

at least one compression molded plastic layer having an inner surface and an outer surface thereof; and

at least one extruded plastic projection bonded to and extending from the inner surface of the compression molded plastic layer.

2. Molded article according to claim 1, wherein said plastic projection is one of a plastic boss and rib.

3. Molded article according to claim 2, including at least one outer film layer over the outer surface of said plastic layer and forming a compression molded composite laminate therewith, said outer film layer having an inner surface adjacent to and bonded to the outer surface of said plastic layer and an outer surface opposed to said inner surface.

4. Molded article according to claim 3, wherein said outer film layer is a plastic film and wherein said plastic layer and outer plastic film layer are compression molded.

5. Molded article according to claim 4, wherein said outer plastic film layer is colored.

6. Molded article according to claim 4, wherein said outer plastic film layer is selected from the group consisting of polyolefins, polyvinyl chloride, polystyrene, acryonitrille-butadiene-styrene, polycarbonates and polyesters.

7. Molded article according to claim 6, wherein the plastic layer is a thermoplastic layer bonded to the outer plastic film.

8. Molded article according to claim 4, including multiple projections.

9. Molded article according to claim 4, including multiple plastic layers.

10. Molded article according to claim 4, including multiple outer film layers.

11. Process, which comprises:

compression molding at least one plastic layer to provide a plastic layer with an inner surface and an outer surface thereof, extruding at least one plastic projection; and

bonding said plastic projection to the inner surface of the compression molding plastic layer so that said plastic projection extends from the inner surface of said compression molded plastic layer.

12. Process according to claim 11, including the step of extruding at least one projection which is one of a plastic boss and plastic rib.

13. Process according to claim 12, including the step of providing at least one outer film layer over the outer surface of said plastic layer and compression molding said outer film layer and plastic layer to form a compression molded composite laminate, wherein said outer film layer has an inner surface adjacent to and bonded to the outer surface of said plastic layer and an outer surface opposed to said inner surface.

14. Process according to claim 13, including the step of providing that said outer film layer is plastic, and including the step of compression molding said outer film layer and plastic layer together.

15. Process according to claim 14, including:

compression molding said plastic layer and outer film layer with a mold core having at least one closed cavity therein facing the inner surface of said plastic layer;

filling said cavity with plastic material for said projection;

opening said cavity after compression molding; and

molding said projection after compression molding said plastic layer and outer film layer to bond said projection to the inner surface of said plastic layer.

16. Process according to claim 14, including the step of providing separate extruders for said plastic layer and projections;

and extruding plastic from said separate extruders to separately form said plastic layer and projections.

17. Process according to claim 14, including the step of forming multiple projections.

18. Process according to claim 14, including the step of providing multiple plastic layers.

19. Process according to claim 14, including the step of providing multiple outer film layers.