Resin sheet having porous layered structure useful as electrode separator for electric cells. [olefin resin with finely divided inorganic substace and surfactant]
A resin sheet having a porous layered structure useful as an electrode separator for electric cells is described. The sheet comprises an olefin resin, a finely divided inorganic substance, and at least one substance selected from the group consisting of a water-swellable thermoplastic resin, a water-insoluble or difficultly water-soluble hydrophilic nonionic surface active agent, and a water-insoluble or difficultly water-soluble hydrophilic anionic surface active agent. The sheet includes fine pores arranged throughout its cross section in a plurality of layers, at least some of them forming open cells. This sheet is prepared by a process comprising fabricating a mixture containing the above components into a sheet, and stretching the sheet in at least one direction. 2 figures.
- Assignee:
- Sekisui Kagaku Kogyo Kabushiki Kaisha
- Patent Number(s):
- US 3967978
- OSTI ID:
- 7345873
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coal-water slurry viscosity reduction using olefin/maleic acid salt copolymers
Enhanced oil recovery process using a hydrophobic associative composition containing a hydrophilic/hydrophobic polymer
Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
BATTERY SEPARATORS
ELECTRIC BATTERIES
ELECTRIC-POWERED VEHICLES
ELECTROCHEMICAL CELLS
ENERGY STORAGE SYSTEMS
FABRICATION
LAYERS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
RESINS
SHEETS
SURFACTANTS
THERMOPLASTICS
VEHICLES