Paper making and fiber liberation – Processes and products – Electrical or magnetic product characteristic
Patent
1979-04-27
1980-11-18
Smith, William F.
Paper making and fiber liberation
Processes and products
Electrical or magnetic product characteristic
162164R, 162164EP, 162168R, 162168N, 162168NA, 162169, 162181B, D21H 378
Patent
active
042343780
ABSTRACT:
An improved method for manufacturing a magnet paper sheet which comprises: thoroughly mixing about 70-90 parts by weight of magnetoplumbite barium ferrite powder and/or magnetoplumbite strontium ferrite powder essentially consisting of particles of primary particle size of about 0.1-2 microns and of secondary particle size smaller than about 20 microns, an anionic synthetic latex containing about 1-10 parts by weight in dry weight of a synthetic rubber and/or a synthetic resin such as SBR, NBR, polyvinyl acetate and polyacrylate, about 2-10 weight % of a cationic organic polymer electrolyte such as polyamine and polyethyleneimine based on the amount of the synthetic rubber and/or resin, and more than about 5 parts by weight of pulp fibers together into a slurry; forming the slurry into a paper sheet; and magnetizing the paper sheet.
REFERENCES:
patent: 2547948 (1951-04-01), Kornei
patent: 2563897 (1951-08-01), Wilson et al.
patent: 4116752 (1978-09-01), Matsumoto et al.
patent: 4121966 (1918-10-01), Amano et al.
Iwasaki Susumu
Matsumoto Seiji
Nagasawa Osamu
Takano Tatsuo
Sakai Chemical Industry Co. Ltd.
Smith William F.
LandOfFree
Magnet paper sheet and a method for manufacturing the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnet paper sheet and a method for manufacturing the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnet paper sheet and a method for manufacturing the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-596502