# US 5,702,558 A · Method of top-coating a veneered substrate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,702,558 A - Document ID: US5702558A - Status: Granted - Kind: A - Application number: 08/672,699 - Filed: 1996-06-27 - Granted: 1997-12-30 - Earliest claimed: 1996-06-27 - Assignees: Atlantic Automotive Components, Inc. - Inventors: Richard J. Schadel - Web page: https://patentgrep.com/patent/US5702558A ## CPC - B32B 7/06: permitting easy separation - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 21/08: of synthetic resin - B32B 21/14: comprising wood board or veneer - B32B 27/08: of synthetic resin - B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)} - B32B 27/365: {comprising polycarbonates} - B32B 37/26: with at least one layer which influences the bonding during the lamination process, e.g. release layers or pressure equalising layers - B32B 2317/16: Wood, e.g. woodboard, fibreboard, woodchips - B32B 2369/00: Polycarbonates - Y10T 428/24066: Wood grain - Y10T 428/24364: with transparent or protective coating - Y10T 428/31507: Of polycarbonate - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method is provided for top-coating a veneered substrate. Heat-activated urethane adhesive layers are placed on opposing sides of a veneered substrate, and Lexan films of equal thickness are placed adjacent the two layers of adhesive. A polyethylene sheet is placed adjacent each Lexan film to act as a release masking. A silicone pad is laid on the lower platen, and a 5 mil polycarbonate sheet is placed on top of the stack for contacting the top platen of the laminating press. The laminating press then applies heat and pressure for a predetermined period of time to produce a hard-coated veneered substrate, and the polyethylene sheets are discarded. ## Claims ### Claim 1 A method of top-coating a veneered substrate, comprising: laying a pad on the bottom platen of a laminating press; laying a first release masking sheet on the pad; laying a first polycarbonate sheet on the first release masking sheet; laying a first urethane adhesive sheet on the first polycarbonate sheet; laying the veneered substrate on the first urethane adhesive sheet; laying a second urethane adhesive sheet on the veneered substrate; laying a second polycarbonate sheet on the second adhesive sheet; laying a second release masking sheet on the second polycarbonate sheet; laying a third polycarbonate sheet on the second release masking sheet; and applying heat and pressure for a predetermined period of time to adhesively secure the first and second polycarbonate sheets to the veneered substrate. ### Claim 2 (depends on 1) The method of claim 1, wherein said step of laying a pad on the bottom platen comprises laying a silicone pad on the bottom platen. ### Claim 3 (depends on 1) The method of claim 1, wherein said step of laying first and second release masking sheets comprise laying first and second polyethylene sheets. ### Claim 4 (depends on 3) The method of claim 3, wherein said steps of laying first and second polyethylene sheets comprise laying first and second polyethylene sheets having a thickness of approximately 2 mil. ### Claim 5 (depends on 1) The method of claim 1, wherein said steps of laying first and second polycarbonate sheets comprise laying first and second polycarbonate sheets having a thickness of at least approximately 30 mil. ### Claim 6 (depends on 1) The method of claim 1, wherein said steps of laying first and second urethane adhesive sheets comprise laying urethane adhesive sheets having a thickness of approximately 15 mil and containing ultraviolet light blockers. ### Claim 7 (depends on 1) The method of claim 1, wherein said step of laying a third polycarbonate sheet on the second release masking sheet comprises laying a polycarbonate sheet having a thickness between 2 mil and 50 mil. ### Claim 8 (depends on 1) The method of claim 1, wherein said step of applying heat and pressure for a predetermined period of time comprises applying between 140 and 165 Bar pressure and between 115.degree. and 130.degree. C. heat for approximately 10 hours. ### Claim 9 (depends on 1) The method of claim 1, wherein said steps of laying first and second polycarbonate sheets comprise laying a first hard-coated polycarbonate sheet and a second non-hard-coated polycarbonate sheet. ### Claim 10 A method of top-coating a veneered substrate, comprising: laying a silicone pad on the bottom platen of a laminating press; laying a first polyethylene sheet on the silicone pad; laying a first polycarbonate sheet on the first polyethylene sheet; laying a first urethane adhesive sheet on the first polycarbonate sheet; laying a veneered substrate on the first urethane adhesive sheet; laying a second urethane adhesive sheet on the veneered substrate; laying a second polycarbonate sheet on the second urethane adhesive sheet; laying a second polyethylene sheet on the second polycarbonate sheet; laying a third polycarbonate sheet on the second polyethylene sheet; and applying heat and pressure for a predetermined period of time to adhesively secure the first and second polycarbonate sheets to the veneered substrate. ### Claim 11 (depends on 10) The method of claim 10, wherein said steps of laying first and second polyethylene sheets comprise laying first and second polyethylene sheets having a thickness of approximately 2 mil. ### Claim 12 (depends on 10) The method of claim 10, wherein said steps of laying first and second polycarbonate sheets comprise laying first and second polycarbonate sheets having a thickness of at least approximately 30 mil. ### Claim 13 (depends on 10) The method of claim 10, wherein said steps of laying first and second urethane adhesive sheets comprise laying urethane adhesive sheets having a thickness of approximately 15 mil and containing ultraviolet light blockers. ### Claim 14 (depends on 10) The method of claim 10, wherein said step of laying a third polycarbonate sheet on the second polyethylene sheet comprises laying a polycarbonate sheet having a thickness between 2 mil and 50 mil. ### Claim 15 (depends on 10) The method of claim 10, wherein said step of applying heat and pressure for a predetermined period of time comprises applying between 140 and 165 Bar pressure and between 115.degree. and 130.degree. C. heat for approximately 10 hours. ### Claim 16 (depends on 10) The method of claim 10, wherein said steps of laying first and second polycarbonate sheets comprise laying a first hard-coated polycarbonate sheet and a second non-hard-coated polycarbonate sheet.