Paper sized with fluorocarbon agents on one side and coated on the opposite side with thermoplastic materials

850,818. Paper coated with wax, asphalt etc.; carbon paper &c. MINNESOTA MINING & MANUFACTURING CO. Jan. 3, 1957 [Jan. 13, 1956], No. 309/57. Class 96. Porous paper, e.g. 0.0012 inch thick, is sized on one side only with a fluorocarbon compound, e.g. a chromium complex of perfluorocaprylic a...

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Bibliographic Details
Main Authors HESSBURG LAWRENCE J, RENGEL GAYLE L
Format Patent
LanguageEnglish
Published 12.01.1960
Subjects
COLOUR PRINTING
IMPREGNATING OR COATING OF PAPER
LINING MACHINES
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
PERFORMING OPERATIONS
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
STAMPS
TEXTILES
TRANSPORTING
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
TYPEWRITERS
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Summary:850,818. Paper coated with wax, asphalt etc.; carbon paper &c. MINNESOTA MINING & MANUFACTURING CO. Jan. 3, 1957 [Jan. 13, 1956], No. 309/57. Class 96. Porous paper, e.g. 0.0012 inch thick, is sized on one side only with a fluorocarbon compound, e.g. a chromium complex of perfluorocaprylic acid, which is repellent to glycerine, oils, and greases, and is coated on the other side, by hot melt, with wax, or asphalt, or a wax and carbon ink composition, e.g. for thin carbon paper, or, e.g. for wrappers or liners, or for laminating. Urea &c. may be included to neutralize hydrochloric acid which is evolved on drying and insolubilizing the chromium complex which may be applied as a 0.2% solution. Asphalt used may have a melting-point of 125‹ C. Specifications 703,435, 712,784 and 763,673 are referred to.
Bibliography:Application Number: US19560558899