Claims
- 1. A composition for use in photo-fabrication of objects comprising:(a) an oxetane; (b) an epoxy compound selected from the group consisting of glycidyl esters of fatty acids, epoxidated soybean oil, and epoxidated linseed oil; and (c) a cationic photoinitiator; wherein an H-shaped object obtained by curing said composition has a dimensional accuracy value of less than or equal to 0.10 mm.
- 2. The composition of claim 1, comprising a further epoxy compound, said further epoxy compound being present, relative to the total composition, in an amount of 3-50 wt %.
- 3. The composition of claim 1, wherein said composition has substantially the same Young's Modulus when cured at an irradiation dose of 100 mJ/cm2 as at an irradiation dose of 500 mJ/cm2.
- 4. The composition of claim 2, wherein said further epoxy compound has a molecular weight of more than 1,000.
- 5. The composition of claim 1, wherein said epoxy compound has a molecular weight of less than 1,000.
- 6. A three-dimensional object comprising a cured photo-curable resin composition according to claim 1.
- 7. A process for photo-fabricating a three-dimensional object comprising selectively curing the photo-curable resin composition of claim 1.
- 8. A process for photo-fabricating a three-dimensional object comprising selectively curing a photo-curable resin composition comprising:(a) an oxetane; (b) an epoxy compound; and (c) a cationic photoinitiator.
- 9. The process of claim 8, wherein said composition comprises 3-50 wt %, relative to the total weight of the composition, of said epoxy compound.
- 10. The process of claim 8, wherein an H-shaped object obtained by curing said composition has a dimensional accuracy value of less than or equal to 0.10 mm.
- 11. A three-dimensional object obtained by the process of claim 8.
- 12. A three-dimensional object obtained by the process of claim 9.
- 13. A three-dimensional object obtained by the process of claim 10.
- 14. A three-dimensional object obtained by the process of claim 11.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-352893 |
Dec 1996 |
JP |
|
Parent Case Info
This is a continuation of application Ser. No. 08/989,407, filed Dec. 12, 1997 now U.S. Pat. No. 5,981,616.
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Continuations (1)
|
Number |
Date |
Country |
Parent |
08/989407 |
Dec 1997 |
US |
Child |
09/394031 |
|
US |