Union Carbide Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Charles J Cunningham

Russell L Brown

George M Bryant

Allen P Jones

Treating flexible sheet material, including paper, using vacuum guides adjacent to short-dwell applicators intimately contacting the sheet, provides improved application of fluid treating composition, particularly at high speeds.

Vacuum guide used in flexible sheet material treatment

Foam applicators having specific lip configurations and substrate orientation, used for applying foamed treating compositions to substrates, including rapidly moving paper, provide uniform distribution of treating agent onto the substrate.

Foam applicator used in paper treatment

Foamable compositions having low concentrations of select foaming agents provide uniform distribution of paper treating agents onto moving paper, including high speed applications, and treated paper having unimpaired properties.

Foam composition used in paper treatment

Method and apparatus for applying foam to an open-weave substrate. The apparatus contains angled shear strips to shear the foam positioned above a foam outlet. The shear strips, enclosed at each end, define a chamber above the foam outlet having open top and bottom sides for sequential contact of both sides of the substrate with the foam as the substrate travels across the outlet and both open top and bottom sides of the chamber.

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Elkview, WV, United States of America

Charles J Cunningham