Claims
- 1. Water repellent glass, comprising:
- a glass substrate; and
- a water repellent film coated integrally on a surface of said glass substrate, said film comprising one or more metal oxides including at least 50 mole % SiO.sub.2 and wherein from 0.1% to less than 1.5% of the nonmetallic atoms of the metal oxide are substituted with a fluoroalkyl group and said film has a contact angle with respect to water of not less than 80.degree..
- 2. The water repellent glass according to claim 1, wherein said glass substrate includes at least one selected from the group consisting of silicate glass, borosilicate glass and phosphate glass.
- 3. The water repellent glass according to claim 2, wherein said silicate glass is at least one selected from the group consisting of silica-alkali glass, lead-alkali glass, soda-lime glass, potassium-lime glass, and barium glass.
- 4. The water repellent glass according to claim 1, wherein said water repellent film further includes at least one selected from the group consisting of TiO.sub.2, Al.sub.2 O.sub.3, and ZrO.sub.2.
- 5. The water repellent glass according to claim 1, wherein said water repellent film further includes phosphorous.
- 6. The water repellent glass according to claim 1, wherein the refractive index of said glass substrate is substantially equal to the refractive index of said water repellent film so as to inhibit the occurrence of light interference between the water repellent film and the glass substrate.
- 7. The water repellent glass of claim 1, wherein said nonmetallic atoms are substituted by a fluoroalkyl group in an amount of 0.1% to 0.75% of the total of said nonmetallic atoms.
- 8. The water repellent glass of claim 7, wherein said amount of substitution is from 0.5% to 0.75%.
- 9. The water repellent glass of claim 1, wherein the contact angle of the water repellent film with respect to water is at least 100.degree..
- 10. The water repellent glass of claim 1, wherein the contact angle of the water repellent film with respect to water is at least 110.degree..
- 11. The water repellent glass of claim 1, wherein said film has a thickness of not more than 100 nm.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-107417 |
May 1991 |
JPX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 07/881,791, filed May 12, 1992, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (10)
Number |
Date |
Country |
83-744589 |
Jul 1983 |
EPX |
0476510A1 |
Mar 1992 |
EPX |
3701654A1 |
Jul 1987 |
DEX |
4218657A1 |
Oct 1992 |
DEX |
63-24554 |
Oct 1982 |
JPX |
58-172245 |
Nov 1983 |
JPX |
3-23493 |
Jan 1986 |
JPX |
2-248480 |
Apr 1990 |
JPX |
2248480 |
Oct 1990 |
JPX |
2311332 |
Dec 1990 |
JPX |
Non-Patent Literature Citations (2)
Entry |
Non-Crystalline Solids, vol. 121, 1990. |
Journal of Non-Crystalline Solids 121 (1990) 344,347. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
881791 |
May 1992 |
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