Digital color-design composite for use in laminated glass

• US 6,824,868 B2
• Filed: 04/30/2002
• Issued: 11/30/2004
• Est. Priority Date: 04/30/2002
• Status: Expired due to Fees

• Current Assignee: Solutia Incorporated (Eastman Chemical Company)
• Original Assignee: Solutia Incorporated (Eastman Chemical Company)
• Inventors: Moran, James R., Yacovone, Vincent J., Bell, William Paul
• Primary Examiner(s): LAVILLA, MICHAEL E
• Application Number:
  US10/135,417
• Publication Number:
  US 20030203214A1
• Time in Patent Office: 945 Days
• Field of Search: 428/13, 428/29, 428/157, 428/220, 428/213, 428/335, 428/426, 428/428, 428/436, 428/437, 428/441, 428/442, 428/412, 428/413, 428/542.2, 428/480, 428/474.4, 428/343, 428/346, 428/354, 428/355.AK, 428/355.AC
• US Class Current: 428/343
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10036 comprising two outer glass sheets
• CPC Class Codes: B32B 17/10247 Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons containing metal wires for aesthetic reasons B32B17/10422
• CPC Class Codes: B32B 17/10275 on interlayer
• CPC Class Codes: B32B 17/10284 on intermediate layer
• CPC Class Codes: B32B 17/10339 Specific parts of the laminated safety glass or glazing being colored or tinted tinted glass sheet B32B17/1011; tinted interlayer B32B17/10651
• CPC Class Codes: B32B 17/10577 Surface roughness
• CPC Class Codes: B32B 17/10761 containing vinyl acetal
• CPC Class Codes: B32B 17/10788 containing ethylene vinylacetate
• CPC Class Codes: B32B 17/10935 as a preformed layer, e.g. formed by extrusion
• CPC Class Codes: B32B 17/10981 Pre-treatment of the layers
• CPC Class Codes: B32B 2367/00 Polyesters, e.g. PET, i.e. polyethylene terephthalate
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/2495 Thickness [relative or absolute]
• CPC Class Codes: Y10T 428/264 Up to 3 mils
• CPC Class Codes: Y10T 428/28 Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2813 Heat or solvent activated or sealable
• CPC Class Codes: Y10T 428/2848 Three or more layers
• CPC Class Codes: Y10T 428/2874 : including aldehyde or ketone condensation polymer [e.g., urea formaldehyde polymer, melamine formaldehyde polymer, etc.]
• CPC Class Codes: Y10T 428/31616 : Next to polyester [e.g., alkyd]
• CPC Class Codes: Y10T 428/31623 : Next to polyamide or polyimide
• CPC Class Codes: Y10T 428/31627 : Next to aldehyde or ketone condensation product
• CPC Class Codes: Y10T 428/3163 : Next to acetal of polymerized unsaturated alcohol [e.g., formal butyral, etc.]
• CPC Class Codes: Y10T 428/31645 : Next to addition polymer from unsaturated monomers
• CPC Class Codes: Y10T 428/31725 : Of polyamide
• CPC Class Codes: Y10T 428/31786 : Of polyester [e.g., alkyd, etc.]

Abstract

This invention is directed to a plastic composite comprising color images printed onto a polyethylene terephthalate (PET) substrate using thermal transfer (TT) printing technology. The PET layer is then bonded to a second PET layer using a thermally activated adhesive, preferably ethylene vinyl acetate copolymer (EVA). The bonded PET layers are then disposed between two layers of plasticized PVB, forming the plastic composite. The plastic composite can then be placed between two sheets of glass forming the final laminated glass product.

Claims

1. An interlayer for laminated glass, the interlayer comprising a biaxially stretched polyethylene terephthalate polymeric support film containing at least one color image printed thereon;

a biaxially stretched polyethylene terephthalate polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film.

2. The interlayer of claim 1, wherein the at least one color image is printed on the polymeric support film using thermal transfer printing technology.

3. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film using a thermally activated adhesive, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film.

4. The interlayer of claim 3, wherein the thermally activated adhesive is ethylene vinyl acetate copolymer.

5. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film with a minimum bond strength of 4 N/cm., such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film.

6. The interlayer of claim 5, wherein the polymeric support film and polymeric film are bonded together with a bond strength of at least 8 N/cm.

7. An interlayer for laminated glass, the interlayer comprising a polymeric support film having a thickness of between about 25 to 125 micrometers containing at least one color image printed thereon;

a polymeric film having a thickness of between about 10 to 125 micrometers bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film.

8. The interlayer of claim 7, wherein the thickness of the polymeric support film is about 75 micrometers.

9. The interlayer of claim 7, wherein the thickness of the polymeric film is about 75 micrometers.

10. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein each of the first adhesive layer and second adhesive layer are selected from the group consisting of polyurethane, ethylene vinyl acetate copolymer, plasticized polyvinyl chloride and plasticized polyvinyl butyral.

11. The interlayer of claim 10, wherein each of the first adhesive layer and second adhesive layer are plasticized polyvinyl butyral.

12. The interlayer of claim 11, wherein the plasticized polyvinyl butyral is plasticized with a plasticizer selected from the group consisting of triethylene glycol di-(2-ethylbutyrate), triethyleneglycol di-(2-ethylhexanoate), tetraethyleneglycol diheptanoate, dihexyl adipate, dioctyl adipate, mixtures of heptyl and nonyl adipates, dibutyl sebacate, polymeric plasticizers, and mixtures of phosphates and adipates, mixtures of adipates and alkyl benzyl phthalates, mixed adipates made from C₄ to C₉ alkyl alcohols and cyclo C₄ to C₁₀ alcohols, C₆ to C₈ adipate esters, and mixtures thereof.

13. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein one or both of the adhesive layers comprise an ultra-violet light absorber.

14. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric support film comprises an ultra-violet light absorber.

15. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein one or both of the adhesive layers are colored.

16. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the first and the second adhesive layers have a thickness of about 0.38 to 1.5 mm.

17. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the surfaces of the polymeric support film and the polymeric film in contact with the adhesive layers are chemically modified using a process selected from the group consisting of flame treatment, chemical oxidation, corona discharge, carbon sputtering, plasma treatment in vacuum, and plasma treatment in air.

18. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein an adhesive is applied between the surfaces of the polymeric support film and polymeric film in contact with the adhesive layers.

19. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the two glass sheets are a pair of matching float glass sheets.

20. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein both the polymeric support film and the polymeric film are biaxially stretched polyethylene terephthalate.

21. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric support film is bonded to the polymeric film using a thermally activated adhesive.

22. The laminated glass composite of claim 21, wherein the thermally activated adhesive is ethylene vinyl acetate copolymer.

23. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric support film and polymeric film are bonded together with a minimum bond strength of 4 N/cm.

24. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color mane is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric support film and polymeric film are bonded together with a bond strength of at least 8 N/cm.

25. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the thickness of the polymeric support film is between about 25 to 125 micrometers and the polymeric film is between about 10 to 125 micrometers.

26. The laminated glass composite of claim 25, wherein the thickness of the polymeric support film is about 75 micrometers.

27. The laminated glass composite of claim 25, wherein the thickness of the polymeric film is about 75 micrometers.

28. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein each of the first adhesive layer and second adhesive layer is selected from the group consisting of polyurethane, ethylene vinyl acetate copolymer, plasticized polyvinyl chloride and plasticized polyvinyl butyral.

29. The laminated glass composite of claim 28, wherein each of the first adhesive layer and second adhesive layer is plasticized polyvinyl butyral.

30. The laminated glass composite of claim 29, wherein the plasticized polyvinyl butyral is plasticized with a plasticizer selected from the group consisting of triethylene glycol di-(2-ethylbutyrate), triethyleneglycol di-(2-ethylhexanoate), tetraethyleneglycol diheptanoate, dihexyl adipate, dioctyl adipate, mixtures of heptyl and nonyl adipates, dibutyl sebacate, polymeric plasticizers, and mixtures of phosphates and adipates, mixtures of adipates and alkyl benzyl phthalates, mixed adipates made from C₄ to C₉ alkyl alcohols and cyclo C₄ to C₁₀ alcohols, C₆ to C₈ adipate esters, and mixtures thereof.

31. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein one or both of the adhesive layers comprise an ultra-violet light absorber.

32. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric support film comprises an ultra-violet light absorber.

33. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein one or both of the adhesive layers are colored.

34. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the first and the second adhesive layers have a thickness of about 0.38 to 1.5 mm.

35. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the surfaces of the polymeric support film and the polymeric film in contact with the adhesive layers are chemically modified using a process selected from the group consisting of flame treatment, chemical oxidation, corona discharge, carbon sputtering, plasma treatment in vacuum, and plasma treatment in air.

36. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein an adhesive is applied between the surfaces of the polymeric support film and polymeric film in contact with the adhesive layers.

37. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein both the polymeric support film and the polymeric film are biaxially stretched polyethylene terephthalate.

38. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein the polymeric support film is bonded to the polymeric film using ethylene vinyl acetate copolymer thermally activated adhesive.

39. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein the polymeric support film and polymeric film are bonded together with a minimum bond strength of 4 N/cm.

40. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at left one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein the polymeric support film and polymeric film are bonded together with a bond strength of at least 8 N/cm.

41. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein the thickness of the polymeric support film is between about 25 to 125 micrometers and the polymeric film is between about 10 to 125 micrometers.

42. The interlayer of claim 41, wherein the thickness of the polymeric support film is about 75 micrometers.

43. The interlayer of claim 42, wherein the thickness of the polymeric film is about 75 micrometers.

44. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon using thermal transfer printing technology;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

wherein one or both of the polymeric support film and the polymeric film comprise an ultra-violet light absorber.

45. An interlayer for laminated glass, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric film comprises an ultra-violet light absorber.

46. A laminated glass composite comprising an interlayer disposed between two glass sheets, the interlayer comprising a polymeric support film containing at least one color image printed thereon;

a polymeric film bonded to the polymeric support film, such that the at least one color image is between the polymeric support film and the polymeric film;

a first adhesive layer bonded to the polymeric support film opposite of the interface between the polymeric support film and the polymeric film; and

a second adhesive layer bonded to the polymeric film opposite of the interface between the polymeric film and the polymeric support film;

wherein the polymeric film comprises an ultra-violet light absorber.