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US 10,636,920 B2Granted
Barrier film, method of making the barrier film, and articles including the barrier film
Assignee3M Innovative Properties Company
InventorsJoseph C. Spagnola, Mark A. Roehrig, Thomas P. Klun, Alan K. Nachtigal, Jennifer K. Schnobrich, Guy D. Joly
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Abstract
A barrier film that includes a substrate, a first polymer layer on a major surface of the substrate, an oxide layer on the first polymer layer, and a second polymer layer on the oxide layer. At least one of the first or second polymer layers includes a siloxane reaction product of a secondary or tertiary amino-functional silane having at least two silane groups. A method of making the barrier film and articles and a barrier assembly including the barrier film are also disclosed.
Claims13
A barrier film comprising:
- a substrate;
- a first polymer layer on a major surface of the substrate;
- a silicon aluminum oxide layer on the first polymer layer;
- and
- a second polymer layer on the silicon aluminum oxide layer,
- wherein the second polymer layer comprises a polymerized acrylate or methacrylate and a range from one percent by weight to five percent by weight based on the total weight of the second polymer layer of a siloxane reaction product of a secondary or tertiary amino-functional silane represented by formula
- (R3)N—[R1—Si(Y)3]2
- wherein
- R1 is a divalent alkylene group having up to 6 carbon atoms;
- R3 is hydrogen or methyl;
- and
- Y is methoxy,
- wherein the second polymer layer is formed by evaporation and vapor deposition of a polymerizable acrylate or methacrylate and the secondary or tertiary amino-functional silane in the presence of water vapor, wherein the polymerizable acrylate or methacrylate is tricyclodecanedimethanol diacrylate, triacryloxyethyl isocyanurate, pentaerythritol tetraacrylate, trimethylolpropane triacrylate, di-trimethylolpropane tetraacrylate, or a combination thereof.
10 more elements
Dependencies are inferred from the claim text.