barrier for pharmaceutical package and coating process

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12257371
APP PUB NO 20210330869A1
SERIAL NO

17306621

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A vessel including a thermoplastic wall enclosing a lumen is disclosed. The wall supports an SiOx composite barrier coating or layer, for which x is from 1.8 to 2.4, between the wall and the lumen. High Resolution X-ray Photoelectron Spectroscopy (XPS) shows the presence of an interface between the composite barrier coating or layer and the wall or substrate. In one aspect, the interface has at least 1 mol. % O3—Si—C covalent bonding, as a proportion of the O3—Si—C covalent bonding plus SiO4 bonding. In another aspect, the interface has an Si 2p chemical shift to lower binding energy (eV), compared to the binding energy of SiO4 bonding. The result is a tightly adherent composite barrier coating or layer having a high degree of adhesion to the substrate under practical use conditions. Methods of applying the composite barrier coating or layer are also disclosed.

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Patent Owner(s)

  • SIO2 MEDICAL PRODUCTS, LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abrams, Robert S Albany, US 61 1324
Felts, John T Alameda, US 61 1428
Ferguson, John Auburn, US 57 905
Fisk, Thomas E Green Valley, US 48 811
Freedman, Jonathan R Auburn, US 47 577
Pangborn, Robert J Harbor Springs, US 25 506
Sagona, Peter J Pottstown, US 34 826
Weikart, Christopher Auburn, US 55 419

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