Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Reexamination Certificate
2006-01-20
2010-12-14
Mulcahy, Peter D. (Department: 1796)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
C428S402210, C428S403000, C428S421000, C525S199000
Reexamination Certificate
active
07851084
ABSTRACT:
A core/shell polymer (A), comprising: a rubbery core comprising a crosslinked vinylidene fluoride copolymer (a) having a vinylidene fluoride content of 30-90 wt. % and a shell comprising a vinylidene fluoride polymer (b) having a vinylidene fluoride content which is larger than in the crosslinked vinylidene fluoride copolymer (a) and at least 80 wt. %, in a weight ratio (a)/(b) of 30/70-90/10. The vinylidene fluoride-based core/shell polymer (A) is excellent in mechanical properties including flexibility and resistance to nonaqueous electrolytic solutions, is capable of forming a composite electrode layer showing excellent flexibility and adhesion to an electroconductive substrate in combination with a powder active substance and is therefore suitable for use as a binder for nonaqueous electrochemical devices.
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Ahiko Nobuo
Igarashi Tamito
Nagai Aisaku
Sakuma Mitsuyasu
Sugahara Mayumi
Hu Henry
Kureha Corporation
Mulcahy Peter D.
Wenderoth , Lind & Ponack, L.L.P.
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