Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-11-17
1992-03-31
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428260, 428272, 428290, 428378, 428392, 428396, 429249, B32B 700
Patent
active
051007231
ABSTRACT:
Separator materials which are adapted for use in storage batteries and which comprise a fabric sheet of polyolefin resin fibers and a surface layer of a polyolefin resin sulfonated to such an extent that sulfone groups are formed in an amount sufficient to impart an appropriate degree of hydrophilicity. The surface layer is formed on individual resin fibers. The methods of making the separator material are also described.
REFERENCES:
patent: 2964584 (1960-12-01), Mendelsohn et al.
Ikeyama Masakazu
Ikoma Munehisa
Iwasaki Kazutaka
Kawano Hiroshi
Matsumoto Isao
Bell James J.
Matsushita Electric - Industrial Co., Ltd.
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