Non-fouling, wettable coated devices

Details Non-fouling, wettable coated devices Non-fouling, wettable coated devices

B - Operations, Transporting

05

D

B05D 3/06 (2006.01) B05D 7/24 (2006.01) C08J 7/04 (2006.01) C08J 7/18 (2006.01) C09D 4/00 (2006.01) C09D 5/00 (2006.01) C23C 16/50 (2006.01) G02B 1/10 (2006.01) A61L 27/00 (2006.01) A61M 25/00 (2006.01) C08F 2/00 (2006.01) C08F 2/34 (2006.01) C08F 16/00 (2006.01) C08F 20/10 (2006.01) G02C 7/04 (2006.01) G02C 13/00 (2006.01)

Patent

CA 2243869

A device, and its production method, the device has a substrate and a coating composition, the coating composition being formed by the gas phase or plasma polymerization of a gas comprising at least one organic compound or monomer. The polymerization is carried out using a pulsed discharge having a duty cycle of less than about 1/5, in which the pulse-on time is less than about 100 msec and the pulse-off time is less than about 2000 msec. The duty cycle can also be varied, thus the coating composition can be gradient layered accordingly. The device has a coating composition which is uniform in thickness, pin-hole free, optically transparent in the visible region of the magnetic spectrum, permeable to oxygen, abrasive resistant, wettable and biologically non-fouling.

Dispositif et méthode d'obtention; le dispositif comporte un substrat et une composition de revêtement; cette dernière est formée par une phase gazeuse ou par polymérisation plasmatique d'un gaz renfermant au moins un monomère ou composé organique. La polymérisation est effectuée à l'aide d'une décharge pulsée avec un rapport cyclique d'environ 1/5, dans lequel le temps d'impulsion est d'environ 100 ms et le temps de non-impulsion inférieur à environ 2000 ms. On peut aussi faire varier le rapport cyclique, ce qui permet de stratifier en gradient la composition de revêtement. Le dispositif comporte ainsi un revêtement à base de cette composition, d'épaisseur uniforme, exempt de piqûres, transparent dans la région visible du spectre magnétique, perméable à l'oxygène, résistant aux abrasifs, mouillable et biologiquement non putrescible.

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