| US 7,468,399 B2 | ||
| Antifouling condensation curing organopolysiloxane composition and underwater structure | ||
| Takafumi Sakamoto, Gunma-ken (Japan); and Masayuki Ikeno, Gunma-ken (Japan) | ||
| Assigned to Shin-Etsu Chemical Co., Ltd., Tokyo (Japan) | ||
| Filed on Sep. 13, 2005, as Appl. No. 11/224,122. | ||
| Claims priority of application No. 2004-266636 (JP), filed on Sep. 14, 2004. | ||
| Prior Publication US 2006/0058452 A1, Mar. 16, 2006 | ||
| Int. Cl. C09D 5/16 (2006.01) | ||
| U.S. Cl. 523—122 [524/96; 524/104; 524/236; 524/588; 428/447] | 8 Claims |
| 1. An anti-fouling or fouling release condensation curing organopolysiloxane composition comprising in admixture,
(A) a base polymer in the form of a diorganopolysiloxane having at least two silicon atom-bonded hydroxyl and/or hydrolyzable
groups in a molecule,
(B) a silane having at least two hydrolyzable groups in a molecule and/or a partial hydrolytic condensate thereof, and
(C) 0.01 to 30% by weight based on component (A) of an ionic liquid, wherein said ionic liquid consists of a quaternary ammonium
cation selected from the group consisting of a methyltri-n-octylammonium cation, an ethoxyethylmethylpyrrolidinium cation,
and an ethoxyethylmethylmorpholinium cation and an anion selected from the group consisting of AlCl4−, Al3Cl8−, Al2Cl7−, ClO4−, PF6−, BF4−, CF3SO3−, (CF3SO2)2N−, and (CF3SO2)3C− and said ionic liquid has a melting point in the range of −50° C. to 20° C.
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