Modified polymer film surfaces for single-use bioreactor bags and biocontainment and methods of forming same

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United States of America Patent

PATENT NO 11939444
APP PUB NO 20210317278A1
SERIAL NO

17226718

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In some embodiments, a polymer film includes a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. In some embodiments, a polymer film includes a base layer of a first composition of poly(ethylene-vinyl acetate), a surface layer at a surface of the base layer, and a coating layer of a second composition of a copolymer of glycerol and sebacic acid. The surface layer includes surface hydroxy groups converted from acetate groups of the poly(ethylene-vinyl acetate). The second composition is attached to the surface layer by ester bonds between carboxyl groups of the copolymer and the hydroxy groups. A single-use bioreactor bag includes a polymer film including a base composition of poly(ethylene-vinyl acetate) and a surface composition comprising hydroxy groups. A method of modifying a poly(ethylene-vinyl acetate) film includes converting acetate groups at a first surface of the poly(ethylene-vinyl acetate) film to hydroxy groups.

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Patent Owner(s)

  • THE SECANT GROUP, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gabriele, Peter D Frisco, US 61 193
Ginn, Brian Harleysville, US 18 8
Harris, Jeremy J Doylestown, US 48 356
Radzinski, Scott Gilbertsville, US 6 0
Smalley, Ryan R Lansdale, US 3 0

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