Architectural laminate panel with embedded compressible objects and methods for making the same

• US 7,550,057 B1
• Filed: 08/15/2005
• Issued: 06/23/2009
• Est. Priority Date: 04/09/2004
• Status: Expired due to Fees

• Current Assignee: 3Form LLC (Armstrong World Industries Incorporated)
• Original Assignee: 3Form (Hunter Douglas N.V.)
• Inventors: Goodson, R. Talley, Goodson, Raymond Lynn, Goodson, Boyd T.
• Primary Examiner(s): GOFF II, JOHN L
• Application Number:
  US11/203,985
• Time in Patent Office: 1,408 Days
• Field of Search: 156/87, 156/103, 156/228, 156/276, 156/308.2, 156/309.6, 156/311, 156/312, 264/294, 428/46, 428/47
• US Class Current: 156/312
• CPC Class Codes: B32B 2305/18 Fabrics, textiles
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/414 Translucent
• CPC Class Codes: B32B 2307/584 Scratch resistance
• CPC Class Codes: B32B 2309/02 Temperature
• CPC Class Codes: B32B 2309/04 Time
• CPC Class Codes: B32B 2309/105 Thickness
• CPC Class Codes: B32B 2309/12 Pressure
• CPC Class Codes: B32B 2317/12 Paper, e.g. cardboard
• CPC Class Codes: B32B 2317/16 Wood, e.g. woodboard, fibreboard, woodchips
• CPC Class Codes: B32B 2318/04 Stone
• CPC Class Codes: B32B 2369/00 Polycarbonates
• CPC Class Codes: B32B 2451/00 Decorative or ornamental articles
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 37/00 Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
• CPC Class Codes: B32B 37/04 characterised by the partial melting of at least one layer
• CPC Class Codes: B32B 37/08 characterised by the cooling method
• CPC Class Codes: B32B 37/1027 Pressing using at least one press band
• CPC Class Codes: B32B 37/185 Laminating sheets, panels or inserts between two discrete plastic layers
• CPC Class Codes: B32B 38/06 Embossing
• CPC Class Codes: B44C 1/105 : comprising an adhesive layer decalcomania B44C1/16; adhesive tapes C09J7/20
• CPC Class Codes: Y10T 428/26 : Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
• CPC Class Codes: Y10T 428/264 : Up to 3 mils
• CPC Class Codes: Y10T 428/265 : 1 mil or less
• CPC Class Codes: Y10T 428/269 : including synthetic resin or polymer layer or component
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]
• CPC Class Codes: Y10T 428/31797 : Next to addition polymer from unsaturated monomers

Abstract

A decorative laminate panel comprises compressible objects embedded inside, wherein the compressible objects would be flattened in unnatural shapes under conventional processes. For example, an exemplary decorative laminate product comprises thatch reed, willow reed, bamboo, weeds, grasses, twigs and branches of a tree or bush, beans, and so forth. In at least one exemplary implementation of the present invention, an extruded sheet, such as PETG or polycarbonate, is softened and melted around the compressible materials such that the compressible materials do not deform. Imperfections in the decorative laminate panel can be easily removed, thereby allowing for producing a high quality decorative laminate panel with high efficiency and relatively low cost compared with conventional methods and materials.

Claims

1. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step;

wherein the first pressure is between about 5 psi and about 10 psi, and the first temperature comprises a temperature of up to 300°

F.;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure.

2. The process as recited in claim 1, wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 350°

F.

3. The process as recited in claim 1, wherein the third pressure and temperature comprise a pressure of up to 92 psi and a temperature of up to 360°

F.

4. The process as recited in claim 1, wherein the first pressure and temperature comprise the pressure between about 5 psi and about 10 psi and a temperature of up to 180°

F.

5. The process as recited in claim 1, wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 230°

F.

6. The process as recited in claim 1, wherein the third pressure and temperature comprise a pressure of up to 92 psi and a temperature of up to 240°

F.

7. The process as recited in claim 1, further comprising cooling the laminate assembly such that the decorative laminate panel comprises compressible objects in a substantially natural conformation.

8. The process as recited in claim 7, wherein cooling the laminate assembly comprises maintaining a pressure of up to 92 psi while reducing the temperature to as low as 70°

F.

9. The process as recited in claim 1, further comprising identifying one or more imperfections viewable from a surface of the decorative laminate panel, and repeating the process such that the imperfections cannot be identified.

10. The process as recited in claim 1, further comprising arranging the compressible objects between the first and second extruded sheets such that air can escape between the compressible objects when the first and second laminate panels are pressed.

11. The process as recited in claim 1, wherein the decorative laminate panel has a thickness of between 0.25 and 2 inches.

12. The process as recited in claim 1, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

13. The process as recited in claim 1, wherein at least one of the first and second extruded sheets comprise extruded polycarbonate having a thickness of between 0.1 inches and 0.5 inches.

14. The process as recited in claim 1, wherein at least one of the first and second extruded sheets has a width and length dimensions of approximately 3′

×

5′

, approximately 4′

×

8′

, or approximately 5′

×

10′

.

15. The process as recited in claim 1, wherein at least one of the first and second extruded sheets comprises a copolyester that has a melting point between 180°

F. and 230°

F. in a pressure range of up to 40 psi.

16. The process as recited in claim 1, wherein the compressible objects are at least one of thatch, willow reed, bamboo, beans, straw, a tree branch, a tree twig, a bush branch, and a bush twig.

17. The process as recited in claim 1, wherein the one or more compressible objects substantially deform at a critical pressure of less than 92 psi, such that the one or more compressible objects are viewed as having a flattened appearance at the critical pressure.

18. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step, wherein the first pressure is between about 5 psi and about 10 psi;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure;

wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 350°

F.

19. The process as recited in claim 18, wherein the first temperature comprises a temperature of up to 300°

F.

20. The process as recited in claim 18, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

21. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step, wherein the first pressure is between about 5 psi and about 10 psi;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure and the third temperature is greater than the second temperature;

wherein the third pressure and temperature comprise a pressure of up to 92 psi and a temperature of up to 360°

F.

22. The process as recited in claim 21, wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 350°

F.

23. The process as recited in claim 21, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

24. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step;

wherein the first pressure is between about 5 psi and about 10 psi, and the first temperature comprises a temperature of up to 180°

F.;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure.

25. The process as recited in claim 24, wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 350°

F.

26. The process as recited in claim 24, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

27. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step, wherein the first pressure is between about 5 psi and about 10 psi;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure;

wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 230°

F.

28. The process as recited in claim 27, wherein the first temperature comprises a temperature of up to 180°

F.

29. The process as recited in claim 27, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

30. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step, wherein the first pressure is between about 5 psi and about 10 psi;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure and the third temperature is greater than the second temperature;

wherein the third pressure and temperature comprise a pressure of up to 92 psi and a temperature of up to 240°

F.

31. The process as recited in claim 30, wherein the second pressure and temperature comprise a pressure of up to 40 psi and a temperature of up to 230°

F.

32. The process as recited in claim 30, wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

33. A process of embedding decorative compressible objects within translucent resin sheets by softening and melting the translucent resin sheets about the compressible objects, such that the resultant laminate panel portrays the aesthetic characteristics of the embedded compressible objects, comprising:

softening a laminate assembly by holding the laminate assembly at a first pressure and heating the laminate assembly at a first temperature until first and second translucent extruded sheets surrounding decorative compressible objects begin to soften and melt around the compressible objects, and do not crush the compressible objects in a first step, wherein the first pressure is between about 5 psi and about 10 psi;

further softening and melting the laminate assembly at a second pressure and temperature such that the compressible objects become enveloped by the first and second extruded sheets without being crushed in a second step, wherein the second pressure is greater than the first pressure; and

pressing the laminate assembly at a third pressure and temperature, wherein the third pressure is greater than the second pressure;

wherein at least one of the first and second extruded sheets comprise extruded poly(ethylene-co-cyclohexane1,4-dimethanol terephthalate) having a thickness of between 0.1 inches and 0.5 inches.

34. The process as recited in claim 33, wherein the first temperature comprises a temperature of up to 300°

F.

35. The process as recited in claim 33, wherein the third pressure and temperature comprise a pressure of up to 92 psi and a temperature of up to 360°

F.