Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1973-07-20
1976-03-30
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
136146, 136148, 264134, 264136, 264324, B29D 2700
Patent
active
039475379
ABSTRACT:
Battery separators are produced from nonwoven mats of thermoplastic fibers by wetting the fibers with a surfactant-water mixture to modify the surface properties of the fibers in the nonwoven mat, vaporizing the water while depositing the surfactant on the fibers, heating the nonwoven mat prior to compressing and then compressing to increase the fiber-to-fiber bonding as well as to form the desired structure. During compressing, ribs may be formed by using appropriate embossed rolls or press plate patterns. After the compressing step, slitting, cooling and cutting steps are carried out to produce a battery separator of the desired dimensions.
REFERENCES:
patent: 2482062 (1949-09-01), Hanson
patent: 3084091 (1963-04-01), Volkman
patent: 3231650 (1966-01-01), Findlay
patent: 3272657 (1966-09-01), Zenczak
patent: 3329559 (1967-07-01), Corbin
patent: 3351495 (1967-11-01), Larsen
patent: 3354247 (1967-11-01), Zehender
Buntin Robert R.
Morgan Walter A.
Exxon Research & Engineering Co.
Kucia Richard R.
Myers K. S.
Roth David A.
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