| US 7,560,145 B2 | ||
| Curing agent, curable compositions, compositions for optical materials, optical materials, their production and liquid crystal displays and LED's made by using the materials | ||
| Katsuya Ouchi, Settsu (Japan); Manabu Tsumura, Settsu (Japan); Michinori Tsukamoto, Ibaraki (Japan); Harumi Sakamoto, Settsu (Japan); and Kazunori Yokoyama, Settsu (Japan) | ||
| Assigned to Kaneka Corporation, Osaka-Shi (Japan) | ||
| Appl. No. 10/433,981 PCT Filed Dec. 10, 2001, PCT No. PCT/JP01/10802 § 371(c)(1), (2), (4) Date Oct. 23, 2003, PCT Pub. No. WO02/053648, PCT Pub. Date Jul. 11, 2002. |
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| Claims priority of application No. 2000-398382 (JP), filed on Dec. 27, 2000; application No. 2001-037225 (JP), filed on Feb. 14, 2001; and application No. 2001-037226 (JP), filed on Feb. 14, 2001. | ||
| Prior Publication US 2004/0126504 A1, Jul. 01, 2004 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C08G 77/08 (2006.01); C08G 77/12 (2006.01); C08G 77/14 (2006.01); C08G 77/26 (2006.01); C07F 7/08 (2006.01); C07F 7/10 (2006.01); C09K 19/00 (2006.01) | ||
| U.S. Cl. 428—1.1 [428/1.52; 428/1.55; 428/447; 525/100; 525/478; 525/479; 528/34; 528/35; 556/460] | 28 Claims |
| 1. A curing agent,
which comprises at least two SiH groups in each molecule which is obtainable by subjecting
at least one of 1,2,4-trivinylcyclohexane and 2,2-bis(4-hydroxycyclohexyl)propane diallyl ether (α1) and
a cyclic polyorganosiloxane (β1) having at least two SiH groups in each molecule
to hydrosilylation reaction.
|