Silane copolymer compositions containing active agents

Details Silane copolymer compositions containing active agents Silane copolymer compositions containing active agents

2006-04-18

2006-04-18

Robertson, Jeffrey B. (Department: 1712)

Stock material or miscellaneous articles

Composite

Of silicon containing

C428S448000, C524S017000, C524S195000, C524S434000, C524S450000, C524S588000, C524S704000, C524S714000, C524S780000, C524S789000, C524S791000, C524S858000, C524S859000, C524S869000, C424S280100, C424S600000, C424S617000, C424S684000, C604S264000, C427S002280

Reexamination Certificate

active

07029755

ABSTRACT:
The invention is drawn to silane copolymers prepared from the reaction of one or more polyisocyanates with one or more lubricious polymers having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and with one or more organo-functional silanes having at least two functional groups, which may be the same or different, that are reactive with an isocyanate functional group and at least one functional group reactive with a silicone rubber substrate. The silane copolymers of the invention can be used as coatings that are elastic when dry, lubricious when wet, and resist wet abrasion. These copolymers are useful as coatings for polysiloxane (rubber) and other difficult to coat substrates, especially for medical devices, such as catheters. These silane copolymers can contain active agents such as antimicrobials, pharmaceuticals, herbicides, insecticides, algaecides, antifoulants, and antifogging agents.

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