Decorative laminate assembly and method for producing same

• US 6,803,110 B2
• Filed: 01/22/2001
• Issued: 10/12/2004
• Est. Priority Date: 01/22/2001
• Status: Expired due to Term

• Current Assignee: Formica Corporation (Broadview Holding BV)
• Original Assignee: Formica Corporation (Broadview Holding BV)
• Inventors: Laurence, Kenneth John, Drees, Terry Paul, OʼBrien, Kevin Francis
• Primary Examiner(s): Juska, Cheryl A.
• Assistant Examiner(s): Salvatore, Lynda
• Application Number:
  US09/767,556
• Publication Number:
  US 20020146954A1
• Time in Patent Office: 1,359 Days
• Field of Search: 428/147, 428/219, 428/165, 428/210, 428/211, 428/411.1, 428/423.7, 428/425.1, 428/913.3, 442/287, 442/288, 442/290, 442/293, 442/295, 442/300, 442/395, 442/398, 442/389, 442/412, 442/417, 442/171, 442/394, 442/386
• US Class Current: 428/423.7
• CPC Class Codes: B44C 3/02 Superimposing layers B44C3/005 takes precedence
• CPC Class Codes: B44C 3/12 Uniting ornamental elements to structures, e.g. mosaic plates
• CPC Class Codes: B44C 5/04 Ornamental plaques, e.g. decorative panels, decorative veneers
• CPC Class Codes: B44C 5/0469 comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
• CPC Class Codes: E04F 2290/046 with a facing or top layer for fire insulation
• CPC Class Codes: Y10T 428/24405 Polymer or resin [e.g., natural or synthetic rubber, etc.]
• CPC Class Codes: Y10T 428/24554 including cellulosic or natural rubber component
• CPC Class Codes: Y10T 428/31565 Next to polyester [polyethylene terephthalate, etc.]
• CPC Class Codes: Y10T 428/31591 Next to cellulosic
• CPC Class Codes: Y10T 442/3854 Woven fabric with a preformed polymeric film or sheet
• CPC Class Codes: Y10T 442/3886 Olefin polymer or copolymer sheet or film [e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.]
• CPC Class Codes: Y10T 442/674 Nonwoven fabric with a preformed polymeric film or sheet
• CPC Class Codes: Y10T 442/675 Ester condensation polymer sheet or film [e.g., polyethylene terephthalate, etc.]
• CPC Class Codes: Y10T 442/678 Olefin polymer or copolymer sheet or film [e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.]
• CPC Class Codes: Y10T 442/693 Including a paper layer
• CPC Class Codes: Y10T 442/699 Including particulate material other than strand or fiber material

Abstract

A decorative laminate assembly having a decorative laminate top layer assembly. This top layer assembly includes, in descending superimposed relationship, a decorative layer and a core layer that includes PETG. Preferably, the top layer assembly also includes a wear resistant overlay layer on top of the decorative layer, and the core layer'"'"'s PETG is in a sheet form. The top layer assembly is attached to a water resistant substrate through the use of a water resistant adhesive. The decorative laminate assembly of the present invention can be used for a variety of purposes, including flooring applications. When the present invention is used for flooring applications, it is preferred that the overlay layer include wear resistant qualities and that the water resistant substrate comprise PVC or cement fiberboard.

Claims

1. A decorative laminate comprising:

a decorative layer comprising a thermosetting resin impregnated cellulosic material; and

a core layer below said decorative layer comprising polyethylene terephthalate glycol.

2. The decorative laminate of claim 1, wherein said decorative laminate is a high pressure decorative laminate.

3. The decorative laminate of claim 1, wherein said decorative laminate is a low pressure decorative laminate.

4. The decorative laminate of claim 1, wherein said decorative laminate is a continuous laminate.

5. The decorative laminate of claim 1, wherein said polyethylene terephthalate glycol is at least one sheet of polyethylene terephthalate glycol.

6. The decorative laminate of claim 1, wherein said core layer further comprises at least one layer of a woven or non-woven sheet formed from a material selected from the group consisting of glass, carbon and polymeric fiber.

7. The decorative laminate of claim 6, wherein said at least one layer is sandwiched in between two polyethylene terephthalate glycol sheets.

8. The decorative laminate of claim 1, wherein said decorative laminate further comprises an overlay layer on top of said decorative layer.

9. The decorative laminate of claim 8, wherein said overlay layer includes abrasive particles.

10. The decorative laminate of claim 9, wherein said abrasive particles comprise alumina.

11. The decorative laminate of claim 8, wherein said overlay layer is impregnated with a melamine formaldehyde resin.

12. The decorative laminate of claim 1, wherein said decorative layer is impregnated with a melamine formaldehyde resin.

13. The decorative laminate of claim 1, wherein said decorative layer includes a printed pattern.

53. The decorative laminate of claim 1, wherein said cellulosic material is impregnated prior to lamination.

54. The decorative laminate of claim 1, wherein said cellulosic material is impregnated during the lamination process.

14. A decorative laminate comprising:

a wear resistant layer comprising a thermosetting resin impregnated cellulosic material;

a decorative layer comprising a thermosetting resin impregnated cellulosic material; and

a core layer below said decorative layer comprising at least one sheet of polyethylene terephthalate glycol.

15. The decorative laminate of claim 14, wherein said decorative laminate is a high pressure decorative laminate.

16. The decorative laminate of claim 14, wherein said decorative laminate is a low pressure decorative laminate.

17. The decorative laminate of claim 14, wherein said decorative laminate is a continuous laminate.

18. The decorative laminate of claim 14, wherein said wear resistant layer is an overlay layer on top of said decorative layer, said overlay layer including abrasive particles.

19. The decorative laminate of claim 18, wherein said abrasive particles comprise alumina.

55. The decorative laminate of claim 14, wherein said cellulosic material of at least said decorative layer is impregnated prior to lamination.

56. The decorative laminate of claim 14, wherein said cellulosic material of at least said decorative layer is impregnated during the lamination process.

20. A decorative laminate assembly comprising,:

(a) a decorative laminate top layer assembly comprising,;

(i) a decorative layer comprising a thermosetting resin impregnated cellulosic material,

(ii) a core layer below said decorative layer comprising polyethylene terephthalate glycol; and

(b) a substrate attached to said decorative laminate top layer assembly.

21. The decorative laminate of claim 20, wherein said decorative laminate is a high pressure decorative laminate.

22. The decorative laminate of claim 20, wherein said decorative laminate is a low pressure decorative laminate.

23. The decorative laminate of claim 20, wherein said decorative laminate is continuous laminate.

24. The decorative laminate of claim 20, wherein said polyethylene terephthalate glycol is at least one sheet of polyethylene terephthalate glycol.

25. The decorative laminate of claim 20, wherein said core layer further comprises at least one layer of a woven or non-woven sheet formed from a material selected from the group consisting of glass, carbon or polymeric fiber.

26. The decorative laminate of claim 25, wherein said at least one layer is sandwiched in between two polyethylene terephthalate glycol sheets.

27. The decorative laminate of claim 20, wherein said decorative laminate further comprises an overlay layer on top of said decorative layer.

28. The decorative laminate of claim 27, wherein said overlay layer includes abrasive particles.

29. The decorative laminate assembly of claim 20, wherein said substrate is water resistant.

30. The decorative laminate assembly of claim 29, wherein said water resistant substrate comprises polyvinyl chloride.

31. The decorative laminate assembly of claim 29, wherein said water resistant substrate comprises fiber reinforced cement board.

32. The decorative laminate assembly of claim 20, wherein said substrate is attached to said top layer assembly with a water resistant adhesive.

33. A decorative laminate assembly comprising,:

(a) a high pressure decorative laminate top layer assembly comprising,;

(i) a wear resistant layer;

(ii) a decorative layer comprising a thermosetting resin impregnated cellulosic material; and

(iii) a core layer below said decorative layer comprising polyethylene terephthalate glycol;

(b) a water resistant adhesive layer;

(c) a water resistant substrate, wherein said water resistant adhesive layer bonds together said top layer assembly to said water resistant substrate.

34. The decorative laminate of claim 33, wherein said decorative laminate is a high pressure decorative laminate.

35. The decorative laminate of claim 33, wherein said decorative laminate is a low pressure decorative laminate.

36. The decorative laminate of claim 33, wherein said decorative laminate is continuous laminate.

37. The decorative laminate of claim 33, wherein said polyethylene terephthalate glycol is at least one sheet of polyethylene terephthalate glycol.

38. The decorative laminate of claim 33, wherein said wear resistant layer is an overlay layer on top of said decorative layer, said overlay layer including abrasive particles.

39. The decorative laminate assembly of claim 33, wherein said water resistant substrate comprises polyvinyl chloride.

40. The decorative laminate assembly of claim 33, wherein said water resistant substrate comprises fiber reinforced cement board.

41. The decorative laminate of claim 33, wherein said core layer further comprises at least one layer of a woven or non-woven sheet formed from a material selected from the group consisting of glass, carbon or polymeric fiber.

42. The decorative laminate assembly of claim 41, wherein said at least one layer is sandwiched in between two polyethylene terephthalate glycol sheets.

43. A method for producing a decorative laminate comprising:

(a) assembling a wear resistant layer, a decorative layer comprising a thermosetting resin impregnated cellulosic material and a core layer below said decorative layer, said core layer comprising polyethylene terephthalate glycol; and

(b) subjecting said assembly to heat and pressure, thereby laminating said assembly.

44. The method of claim 43, wherein said wear resistant layer is an overlay layer, said overlay layer including abrasive particles.

45. The method of claim 43, wherein said polyethylene terephthalate glycol is 0.020 inches thick.

46. The method of claim 43, wherein said pressure is between 1000 and 1200 psig.

47. The method of claim 46, wherein said temperature is between 125°

C. and 127°

C.

48. The method of claim 47, wherein said beat and pressure is maintained for 25-30 minutes.

49. The method of claim 43, further comprising bonding said overlay layer, decorative layer, and core layer to a water resistant substrate after said subjecting to heat and pressure laminating step.

50. The method of claim 49, wherein said water resistant substrate comprises PVC.

51. The method of claim 49, wherein said water resistant substrate comprises fiber reinforced cement board.

52. The method of claim 49, wherein said polyethylene terephthalate glycol comprises at least one sheet of polyethylene terephthalate glycol.