Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Reexamination Certificate
2006-08-31
2010-10-05
Kalafut, Stephen J. (Department: 1795)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Separator, retainer or spacer insulating structure
C428S516000, C156S244110
Reexamination Certificate
active
07807287
ABSTRACT:
Disclosed herein is a multi-layer, microporous polyolefin membrane comprising a first porous layer of a polyethylene, and a second porous layer comprising a polyethylene, and polypropylene having a weight-average molecular weight of 6×105or more and a fraction having a molecular weight of 1.8×106or more being 10% or more by mass.
REFERENCES:
patent: 4877679 (1989-10-01), Leatherman et al.
patent: 6153133 (2000-11-01), Kaimai et al.
patent: 6168858 (2001-01-01), Hasegawa et al.
patent: 6245272 (2001-06-01), Takita et al.
patent: 6878226 (2005-04-01), Yu
patent: 2008/0057389 (2008-03-01), Kono et al.
patent: 1 693 408 (2006-08-01), None
patent: 02-77108 (1990-03-01), None
patent: 03-064334 (1991-03-01), None
patent: 06-096753 (1994-04-01), None
patent: 07-268118 (1995-10-01), None
patent: 2002/128943 (2002-05-01), None
patent: 2002-194132 (2002-07-01), None
patent: 2002/284918 (2002-10-01), None
patent: 2002/321323 (2002-11-01), None
patent: 2004-196870 (2004-07-01), None
patent: 2004-196871 (2004-07-01), None
patent: 2004-089627 (2004-10-01), None
Sun, et al, “Effect of Short Chain Branching on the Coil Dimensions of Polyolefins in Dilute Solution”, Macromolecules, vol. 34, No. 19, pp. 6812-6820, 2001.
Brant Patrick
Brinen Jeffrey L.
Kimishima Kohtaro
Kono Koichi
Lin Zerong
Abdon Robert L.
Hughes Gerard J.
Kalafut Stephen J.
Tonen Chemical Corporation
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