Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB158545A
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Individual
Original Assignee
Individual
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Publication date
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Publication of GB598361ApublicationCriticalpatent/GB598361A/en
D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
D21H27/18—Paper- or board-based structures for surface covering
D21H27/22—Structures being applied on the surface by special manufacturing processes, e.g. in presses
D21H27/24—Structures being applied on the surface by special manufacturing processes, e.g. in presses characterised by the surface to be covered being phenolic-resin paper laminates, vulcan fibre or similar cellulosic fibreboards
Landscapes
Laminated Bodies
(AREA)
Abstract
598,361. Compound sheet materials. SARGENT, E. H. G. Jan. 19, 1945, No. 1585. [Class 140] In making compound sheet materials by hot-pressing superposed layers of cellulosic fibrous material impregnated or coated with a thermosetting synthetic resin such as phenol- or cresol-formaldehyde, the fibrous layers are made waterproof, before treatment with the resin, with the aid of a quaternary ammonium compound, sulphonium compound, or phosphonium compound.
GB158545A1945-01-19Improvements relating to laminated sheet materials
ExpiredGB598361A
(en)