Process for Producing Anti-Fog Coating
First Claim
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1. A process for preparing an anti-fog coating to a surface of a substrate comprising:
- a) providing nucleophilic groups at the surface of said substrate;
b) adding a first polymer layer by covalently bonding a polyanhydride polymer to said surface; and
c) adding a second polymer layer by covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyvinyl ester, polyether and cellulose derivative.
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Abstract
The invention relates to an anti-fog coating for a surface of a substrate comprising: a first polymer layer resulting from covalently bonding a polyanhydride polymer to said surface; and a second polymer layer resulting from covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyester, polyether and cellulose derivative; said surface having nucleophilic groups. A substrate having an anti-fog coating, as well as a process for preparing said anti-fog coating to the surface of a substrate is also provided.
22 Citations
44 Claims
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1. A process for preparing an anti-fog coating to a surface of a substrate comprising:
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a) providing nucleophilic groups at the surface of said substrate; b) adding a first polymer layer by covalently bonding a polyanhydride polymer to said surface; and c) adding a second polymer layer by covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyvinyl ester, polyether and cellulose derivative. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An anti-fog coating for a surface of a substrate comprising:
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a first polymer layer resulting from covalently bonding a polyanhydride polymer to said surface; and a second polymer layer resulting from covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyvinyl ester, polyether and cellulose derivative; said surface having nucleophilic groups. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A substrate having an anti-fog coating thereon, said coating comprising:
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a first polymer layer resulting from covalently bonding a polyanhydride polymer to said surface, and a second polymer layer resulting from covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyvinyl ester, polyether and cellulose derivative; said surface having nucleophilic groups. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification