Title:
SEPARATOR FABRIC FOR BATTERY
Document Type and Number:
Japanese Patent JPS63114055
Kind Code:
A
Abstract:
A battery separator fabric or filter comprises an unbonded fibrous web of thermoplastic fibres. The surfaces of the top and bottom surface fibres of the fibrous web are seared and fused together to form film-like surfaces having pores by simultaneously applying heat to the top and bottom surfaces of the fibrous web so as to sear the surfaces of the thermoplastic fibres, and pressure to insure that the seared fibres make contact with each other to secure themselves together. Film-like surfaces are formed with pores being created in the surfaces because a majority of spaces remain between the surface fibres. The heat and pressure are controlled by varying the temperature and pressure so that the surface fibres and the inner fibres of the fibrous web are substantially unaffected. The unaffected top and bottom and inner fibres along with the porous film-like surfaces, permits the fibrous web to substantially retain its original porosity.
Inventors:
SUTANREE RITSUTOMAN
RONARUDO GURIINBAAGU
ROORANDO BAANIAA
RONARUDO GURIINBAAGU
ROORANDO BAANIAA
Application Number:
JP22823287A
Publication Date:
May 18, 1988
Filing Date:
September 11, 1987
Export Citation:
Assignee:
KENDALL & CO
International Classes:
B01D39/16; D04H1/54; H01M2/16; (IPC1-7): B01D39/16; D04H1/54; H01M2/16
Attorney, Agent or Firm:
Kyozo Yuasa (4 outside)