Claims
- 1. A mold comprising
- a rigid fiber-reinforced plastic layer having a molding surface, a back surface, and a coefficient of linear expansion of approximately 55.1.times.10.sup.-6 /.degree. C.; and
- a metal support fixed to said back surface and having a coefficient of linear expansion within the range of 10.times.10.sup.-6 /.degree. C. to 30.times.10.sup.-6 /.degree. C., thereby suppressing the linear coefficient of expansion of said rigid fiber-reinforced plastic layer and producing a mold having a coefficient of linear expansion within the range of 23.6.times.10.sup.-6 /.degree. C. to 27.3.times.10.sup.-6 /.degree. C.
- 2. A mold in accordance with claim 1 further comprising an adhesive attaching said metal support to the back surface of said fiber-reinforced plastic layer.
- 3. A mold in accordance with claim 1 wherein said molding surface is embossed.
- 4. A mold in accordance with claim 1 wherein said fiber-reinforced plastic layer is reinforced with fiber selected from the group consisting of glass fiber, carbon fiber, ceramic fiber, polyester fiber, polyamide fiber, acrylic fiber, polyolefin fiber and acetate fiber.
- 5. A mold in accordance with claim 1 wherein said plastic making up said reinforced plastic layer is selected from the group consisting of hardened unsaturated polyester, hardened admixture of unsaturated polyester and styrene, hardened diallylphthalate, a hardened urea resin, hardened melamine resin, hardened phenolic resin and hardened epoxy resin.
Parent Case Info
This is a continuation of application Ser. No. 08/650,001, filed May 16, 1996, now abandoned, which was a continuation of application Ser. No. 08/265,069, filed Jun. 28, 1994, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (5)
Number |
Date |
Country |
2071050 |
Sep 1971 |
FRX |
2152423 |
Jun 1973 |
DEX |
3410751 |
Sep 1975 |
DEX |
43-12910 |
May 1965 |
JPX |
45-23386 |
Aug 1970 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Perry's Chemical Engineers' Handbook, 6th Edition, pp. 23-39, 1984. |
Hodgman, C.D. "Handbook of Chemistry and Physics", pp. 1772-1773, Chemical Rubber Publishing Co.; 1949. |
Continuations (2)
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Number |
Date |
Country |
Parent |
650001 |
May 1996 |
|
Parent |
265069 |
Jun 1994 |
|