Claims
- 1. A plastic lens composition comprising:
- (a) from about 22.0 to about 29.0 percent by weight of bisphenol A diallyl carbonate;
- (b) from about 13.0 to about 25.0 percent by weight of 1.6 hexanedioldimethacrylate;
- (c) from about 15.0 to about 19.0 percent by weight of trimethylol propane triacrylate;
- (d) from about 12.0 to about 18.0 percent by weight of tetraethylene glycol diacrylate;
- (e) from about 12.0 to about 19.0 percent by weight of tripropylene glycol diacrylate;
- (f) from about 2.0 to about 3.0 percent by weight of styrene;
- (g) from about 0.02 to about 0.03 percent by weight of 1-hydroxycyclohexyl phenyl ketone; and
- (h) an effective amount of a mold release agent.
- 2. A plastic lens composition according to claim 1, comprising:
- (a) 26.0 percent by weight of bisphenol A diallyl carbonate;
- (b) 25.0 percent by weight of 1,6 hexanedioldimethacrylate;
- (c) 16.0 percent by weight of trimethylol propane triacrylate;
- (d) 15.0 percent by weight of tetraethylene glycol diacrylate;
- (e) 16.0 percent by weight of tripropylene glycol diacrylate;
- (f) 2.0 percent by weight of styrene;
- (g) 0.03 percent by weight of 1-hydroxycyclohexyl phenyl ketone; and
- (h) an effective amount of a mold release agent.
- 3. A plastic lens composition according to claim 1, further comprising from about 0.2 to about 0.4 ppm of 9,10-anthracenedione, 1-hydroxy-4-[(4-methylphenyl) amino].
CROSS-REFERENCE TO RELATED PATENT APPLICATIONS
This application is a continuation-in-part of application Ser. No. 021,913, filed Mar. 4, 1987, now abandoned, which is a continuation-in-part of application Ser. No. 823,339, filed Jan. 28, 1986, now U.S. Pat. No. 4,728,469.
US Referenced Citations (26)
Foreign Referenced Citations (4)
Number |
Date |
Country |
3917442 |
Aug 1964 |
JPX |
132221 |
Oct 1980 |
JPX |
59-86603 |
May 1984 |
JPX |
60-245607 |
Dec 1985 |
JPX |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
21913 |
Mar 1987 |
|
Parent |
823339 |
Jan 1986 |
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