In situ self cross-linking of polyvinyl alcohol battery separators
Patent
·
OSTI ID:5591348
A battery separator was produced from a polyvinyl alcohol sheet structure which was subjected to an in situ, self cross-linking process by selective oxidation of the 1,2 diol units present in the polyvinyl alcohol sheet structure. The 1,2 diol units were cleaved to form aldehyde end groups which subsequently cross-link through acetalization of the 1,3 diol units of the polyvinyl alcohol. Selective oxidation was achieved using a solution of a suitable oxidizing agent such as periodic acid or lead tetraacetate.
- Assignee:
- ERA-05-022484; EDB-80-061296
- Patent Number(s):
- US 4154912
- OSTI ID:
- 5591348
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
25 ENERGY STORAGE
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALCOHOLS
ALDEHYDES
BATTERY SEPARATORS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CROSS-LINKING
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERIZATION
POLYMERS
POLYVINYLS
PVA
SYNTHESIS
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALCOHOLS
ALDEHYDES
BATTERY SEPARATORS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CROSS-LINKING
HYDROXY COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERIZATION
POLYMERS
POLYVINYLS
PVA
SYNTHESIS