Decorative panels and methods of making the same

• US 4,952,462 A
• Filed: 02/29/1988
• Issued: 08/28/1990
• Est. Priority Date: 02/29/1988
• Status: Expired due to Fees

• Current Assignee: Elvin M. Bright
• Original Assignee: Elvin M. Bright
• Inventors: Bright, Elvin M.
• Primary Examiner(s): Page, Thurman K.
• Assistant Examiner(s): Loney, Donald J.
• Application Number:
  US07/162,060
• Time in Patent Office: 911 Days
• Field of Search: 428/413, 428/415, 428/441, 428/426, 428/537.1, 428/702, 428/913.3, 428/13, 428/14, 428/38, 428/142, 428/143, 428/161, 428/195, 428/203, 428/204, 428/206, 428/207 , 428/213, 428/217, 428/324, 428/363, 428/402, 428/542.2, 428/417, 428/423.1, 428/423.3, 428/425.1, 428/410, 428/192, 428/105, 428/114, 428/212, 428/215 , 428/323, 428/327, 428/425.6, 428/428, 428/430, 428/435, 428/442, 428/520
• US Class Current: 428/542.2
• CPC Class Codes: A47B 13/08 Table tops; Rims therefor not restricted to table tops A47B95/04
• CPC Class Codes: A47B 2200/001 Manufacture of table tops
• CPC Class Codes: B32B 17/10 of synthetic resin
• CPC Class Codes: B32B 2250/05 5 or more layers
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/558 Impact strength, toughness
• CPC Class Codes: B32B 2607/00 Walls, panels
• CPC Class Codes: B32B 27/38 comprising epoxy resins
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: Y10T 428/24058 including grain, strips, or filamentary elements in respective layers or components in angular relation
• CPC Class Codes: Y10T 428/24132 including grain, strips, or filamentary elements in different layers or components parallel
• CPC Class Codes: Y10T 428/24777 Edge feature
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/2495 Thickness [relative or absolute]
• CPC Class Codes: Y10T 428/24967 Absolute thicknesses specified
• CPC Class Codes: Y10T 428/24983 Hardness
• CPC Class Codes: Y10T 428/25 Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 428/254 Polymeric or resinous material
• CPC Class Codes: Y10T 428/315 Surface modified glass [e.g., tempered, strengthened, etc.]
• CPC Class Codes: Y10T 428/31518 Next to glass or quartz
• CPC Class Codes: Y10T 428/31525 : Next to glass or quartz
• CPC Class Codes: Y10T 428/31601 : Quartz or glass
• CPC Class Codes: Y10T 428/31645 : Next to addition polymer from unsaturated monomers

Abstract

Impact resistant table tops and wall panels having adhered tempered glass surfaces comprise a thin resin substrate adhered to the slightly roughened underside of the glass by a transparent elastomeric interlayer of greater than 0.050" thickness. The resin substrate may itself comprise a decorative surface of variegated appearance, and may encapsulate a core body used for support and strength purposes.

Claims

1. A decorative panel having the capability of withstanding the impact of 11/2 pound steel ball dropped from 4'"'"' or greater, comprising:

(a) a glass upper layer having a flat undersurface;

(b) a non-deformable transparent interlayer of about 0.050" or greater in thickness disposed on the undersurface, the interlayer having an elastomeric characteristic and adhesive properties;

(c) a substrate of in excess of about 1/8" thickness of resin, the resin having a first hardness rating, the resin having a volumetric shrinkage characteristic and an elastomeric property and attached to the interlayer on the opposite side from the glass layer, wherein the interlayer is more compliant than the resin and distributes shock waves thereto from impacts on the glass, wherein the glass, interlayer and substrate are firmly united with no spaces or voids between them, wherein the glass layer is tempered glass, and wherein the substrate is of epoxy resin; and

(d) decorative effect means, the decorative effect means comprising in excess of 50% of dyed mineral frit in a decorative pattern within the substrate, the dyed mineral frit having a second hardness rating, wherein the first hardness rating and the second hardness rating are substantially identical, thereby permitting polishing of substrate edge surfaces to a mirror like finish.

2. The invention as set forth in claim 1 above, wherein the panel further comprises a lower density board backing adhered to the resin substrate, wherein the substrate has a Barcol hardness in the range of 40 to 90, and wherein the interlayer is of about 0.050" to 0.080" in thickness.

3. The invention as set forth in claim 2 above, wherein the mineral frit comprises alabaster of about 200 mesh substantially matching the resin substrate in hardness.

4. The invention as set forth in claim 2 above, wherein the board backing is approximately 3/4" in thickness and further including a resin layer covering the underside of the board backing.

5. The invention as set forth in claim 2 above, wherein the decorative effect means comprises a decorative sheet embedded within the substrate.

6. The invention as set forth in claim 2 above, wherein the decorative effect means comprises a translucent powder filler within the substrate, the index of refraction of the powder filler substantially differing from the index of refraction of the substrate.

7. The invention as set forth in claim 5 above, wherein the substrate comprises a resin layer of approximately 1/64" thickness below the interlayer, an embedded decorative sheet adhering to the resin layer and a further resin layer embedding the decorative sheet.

8. A decorative glass covered planar structural unit comprising:

(a) a tempered glass top surface member having a slightly roughened surface;

(b) a primer layer, the primer layer having a first side and a second side, the first side being disposed on the top surface of the glass surface in adherent relation thereto;

(c) an interlayer of cured flexible resin about 0.050" to 0.080" thick, the cured flexible resin having a first side and a second side, the first side of the resin being adhered to the second side of the primer layer disposed on the glass member;

(d) a cured substrate layer, the substrate layer having a first side and a second side, the substrate layer including a resin and in excess of 50% mineral frit, the first side of the substrate layer being adhered to the second side of the interlayer, the substrate layer having a thickness greater than about 3/16", the resin having a first hardness rating, the mineral frit having a second hardness rating, wherein the first hardness rating and the second hardness rating are substantially identical, thereby permitting polishing of substrate edge surfaces to a mirror like finish; and

(e) a planar core attached to the second side of the substrate layer.

9. The invention as set forth in claim 8 above, further including a bottom layer of frit-containing cured resin embedding the planar core and having a thickness of greater than about 3/16", and wherein the primer and interlayer are of transparent material.

10. The invention as set forth in claim 9 above, wherein the primer layer comprises an epoxy and wherein the cured base resin layer comprises at least two colors in a variegated arrangement.

11. The invention as set forth in claim 10 above, wherein the planar core is particle board.