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US 4,018,647 AGranted
Process for the impregnation of a wet fiber web with a heat sensitized foamed latex binder
AssigneeChemische Industrie AKU-Goodrick B.V.
InventorPopke Wietsma
Life of this patent
Estimating the term…
Abstract
A fiber web made by the wet method on a paper making machine is impregnated with a heat sensitized, foamed latex binder as the web passes through a screening area of the paper making machine.
Claims3
In the process of manufacturing a fiber web made by the wet method on a paper machine impregnated with a latex binder composition while passing through a screening area of a paper making type machine, the improvement which comprises
- applying a foamed latex binder composition heat-sensitized to coagulate in the temperature range of from 35.degree. to 95.degree. C as a layer on the top surface of said web,
- drawing said layer of foamed composition into said web by means of suction, pg,8
- and drying the resulting web and its content of foamed binder composition to coagulate said foamed binder composition.
Dependencies are inferred from the claim text.