Claims
- 1. A method of finishing a board member comprising the steps of:
- a) molding a butt edge strip of a first resin, said first resin being an unsaturated polyester resin having a breaking energy equal to or greater than 40 kg %/mm.sup.2, said butt edge strip having dimensions approximately equal to a butt edge of a panel member and having a thickness large enough to make said butt edge invisible after a polishing without resulting in any waviness and/or cracks;
- b) bonding said butt edge strip to said butt edge of said panel member;
- c) coating a major surface of said panel member and an edge of said butt edge strip with a finishing film of a second resin; and
- d) polishing said butt edge strip and said finishing film.
- 2. The method as set forth in claim 1, in which said first resin is unsaturated polyester resin, said method further comprising the step of hardening said butt edge strip at 50 to 150 degrees centigrade between said step a) and said step b).
- 3. The method as set forth in claim 1, in which an adhesive compound selected from the group consisting of adhesive compounds in an urethane resin system and adhesive compounds in an epoxy resin system is used for bonding said butt edge strip to said panel member.
- 4. The method as set forth in claim 3, in which said adhesive compound bonds said butt edge strip to said panel member at 15 to 130 degrees centigrade under pressure ranging from 0.05 MPa to 2.00 MPa.
- 5. The method as set forth in claim 1, in which said second resin is selected from the group consisting of unsaturated polyester resin, urethane acrylate resin and epoxy resin.
- 6. The method as set forth in claim 1, in which said major surface is coated with said finishing film by using one of a curtain flow coater, a spray coater, a roll coater and an electrostatic coating system.
- 7. The method as set forth in claim 1, in which said first resin and said second resin are unsaturated polyester resin.
- 8. The method as set forth in claim 7, in which said first resin is unsaturated polyester having a breaking energy equal to or greater than 40 kg %/mm.sup.2, and the unsaturated polyester resin serving as said second resin is harder than said unsaturated polyester resin serving as said first resin.
- 9. The method as set forth in claim 1, in which an adhesive compound selected from the group consisting of water vinyl urethane resin, vinyl acetate and cyano acrylate is used for bonding said butt edge strip to said panel member.
- 10. A method of finishing a board member comprising the steps of:
- providing a panel member having butt edges and major surfaces coated with phenol impregnated plate members;
- papering said panel member;
- molding a butt edge strip of first unsaturated polyester resin wider than one of said butt edges of said panel member, said first unsaturated polyester resin having a breaking energy equal to or greater than 40 kg %/mm.sup.2 ;
- hardening said butt edge strip by applying heat;
- bonding said butt edge strip to said one of said butt edges by using adhesive compound, said butt edge strip projecting from said major surfaces, said adhesive compound being selected from the group consisting of an urethane resin system and an epoxy resin system;
- cutting parts of said butt edge strip so as to make both edges of said butt edge strip coplanar with said major surfaces;
- coating one of said major surfaces and one of said edges with said unsaturated polyester resin by using a curtain flow coater;
- applying heat to said second unsaturated polyester resin so as to be harder than said first unsaturated polyester resin; and
- polishing an exposed surface of the layer of said second unsaturated polyester resin and an exposed surface of said butt edge strip, said butt edge strip having a thickness large enough to make said one butt edge invisible after polishing without resulting in any waviness and/or cracks.
Priority Claims (1)
Number |
Date |
Country |
Kind |
6-150171 |
Jun 1994 |
JPX |
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Parent Case Info
This is a Continuation of application Ser. No. 08/494,361 filed on Jun. 23, 1995, now abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
155906 |
Nov 1989 |
JPX |
3-162904 |
Jul 1991 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
494361 |
Jun 1995 |
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