Minnesota Mining and Manufacturing Company

Carol E Hendrickson

Rosa Uy

Arlene J Mencke

William A Hendrickson

Stephen J Willett

Hsin Hsin Chou

Louis A Errede

Dale R Anderson

A composite marine structure comprises a marine substrate having adhered to at least a portion of its surface a layer of a water-permeable composite article comprising a non-woven fibrous web having entrapped therein active particulate to provide said marine substrate with protection against at least one of fouling and corrosion. Underwater surfaces such as ship hulls, buoys, docks, intake pipes, etc., can be protected against marine growth and corrosion by adhering thereto the composite sheet article of the invention.

Antifouling/anticorrosive composite marine structure

A composite article is prepared having in sequence a fibrous support which has been subjected to a surface treatment to provide binding sites thereon, a layer of a protein immobilizer compound, and a biologically active protein such as enzyme. The surface treatment can be carried out by coating the surface with an inorganic oxide or by subjecting the surface to plasma treatment.

Biologically active protein immobilized with a polymeric fibrous support

A method for disinfecting a medical device comprising the steps of immersing a medical device in a hydrogen peroxide solution for a time sufficient to disinfect said device, decomposing any residual hydrogen peroxide by use of a catalytically effective amount of a protein capable of decomposing hydrogen peroxide, said protein being immobilized on a composite article, said composite article comprising in sequence a support, a layer of protein immobilizer compound, and a biologically active protein. The surface modification treatment is a gelled network of inorganic oxide particles or a plasma treatment.

Enzymatic neutralization of hydrogen peroxide

A composite article is prepared comprising in sequence a fibrous polymeric support which has been subjected to a surface treatment to provide binding sites thereon, a layer of a protein immobilizer compound, and a biologically active protein. The surface treatment comprises coating the support with a 2 to 500 nm thick layer of inorganic oxide or subjecting the support to a plasma treatment. The protein immobilizer can be a polymer or silane-functional compound. The biologically active protein can be the enzyme, catalase, which has use in decomposing hydrogen peroxide when disinfecting contact lenses.

Immobilization of biologically active protein on a polymeric fibrous

An article having improved electrostatic charge transfer properties. The improvement in charge transfer properties results from subjecting a layer of photoconductive-insulative material or dielectric material on the charge donor or a layer of dielectric material on the charge receptor, or both layers, to plasma treatment process to provide an oxygen-enriched surface to the photoconductive-insulative layer and/or the dielectric layer.

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St. Joseph Township, WI, United States of America

Carol E Hendrickson