Substrate surface preparation
AssigneeBSI Corporation
InventorsPatrick E. Guire, Shawn G. Dunkirk, Mark W. Josephson, Melvin J. Swanson
Life of this patent
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Abstract
Surfaces are provided with desired characteristics of a polymer by covalently bonding polymer molecules to the surface through external activation (e.g., actinic radiation) of latent reactive groups, such as photoactivatable ketones, carried by the polymer molecules. The initial surfaces are free of chemical groups added by surface pretreatement and which chemically participate in the covalent bonding process.
Claims22
A method of providing a substrate having a solid surface, the method comprising the steps of:
- (a) providing a polymer,
- (b) contacting the substrate surface with a composition comprising a plurality of molecules of the polymer, each having covalently bonded to it at least one latent reactive group capable of active specie generation in response to application of an external stimulus, under conditions which enable the polymer molecules to orient spatially so as to enable the latent reactive groups to come into covalent bonding proximity with the substrate surface;
- and
- (c) thereafter activating the latent reactive groups by application of the external stimulus to covalently bond the polymer molecules to the substrate surface.
A method according to claim I wherein the substrate surface is polystyrene.
A method of providing a substrate having a surface, the method comprising the steps of:
- (a) providing a polymer,
- (b) contacting the substrate surface with a composition comprising a plurality of molecules of the polymer, each having covalently bonded to it at least one latent reactive group selected from the group consisting of photoactivatable ketones under conditions which enable the polymer to orient spatially so as to enable the latent reactive groups to come into covalent bonding proximity with the substrate surface;
- and
- (c) thereafter activating the latent reactive groups by the application of the external stimulus to covalently bond the polymer molecules to the substrate surface.
Dependencies are inferred from the claim text.