Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing
Reexamination Certificate
2006-08-10
2011-11-08
Mulcahy, Peter D. (Department: 1764)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ion-exchange polymer or process of preparing
C422S004000, C422S122000, C502S401000, C502S402000
Reexamination Certificate
active
08053483
ABSTRACT:
A gas adsorbent which has sufficient gas adsorptivity for noxious gas components in a cigarette when brought into contact with a gas stream having a high flow rate as that when it passes through a cigarette filter, and which releases a small amount of bad odor components such as amine impurities and free noxious components which adversely affect health such as aromatic compounds derived from the gas adsorbent itself, the gas adsorbent satisfying conditions (I), (II), (IV) and (V) or conditions (I), (III), (IV) and (V), as described in the specification.
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Office Action issued Feb. 11, 2011, in China Patent Application No. 200680028016.7 (witn English translation).
Hu Henry
Mitsubishi Chemical Corporation
Mulcahy Peter D.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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