Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Reexamination Certificate
2011-07-12
2011-07-12
Eashoo, Mark (Department: 1767)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C521S027000
Reexamination Certificate
active
07977394
ABSTRACT:
Triblock copolymers useful for forming ion conductive membranes are provided. The triblock copolymers are characterized by having either a hydrophobic-hydrophilic-hydrophobic or a hydrophilic-hydrophobic-hydrophilic polymer sequence that induces a microphase separated morphology. Variations in which the hydrophilic polymer sequence component includes either acid groups or salts of acid groups are also disclosed. Methods for forming an ion conductive membrane from the triblock copolymers are provided.
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English machine translation of JP 2005-060484.
Corresponding Japanese Office Action of Mar. 24, 2009.
Feng Wang, Taianlu Chen, Jiping Xy, “Sodium Sulfonate—Functional Poly(ether ketone)s”, Macromol, Chem Phys. 199, 1421-1426 (1998).
Gross Markus
Herz Hans-Georg
Maier Gerhard
Brooks & Kushman P.C.
Eashoo Mark
GM Global Technology Operations LLC
McCulley Megan
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