Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2011-06-21
2011-06-21
Harlan, Robert D. (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C427S164000, C427S165000, C427S167000, C427S240000
Reexamination Certificate
active
07964659
ABSTRACT:
To provide an antireflection coating composition having a low surface tension and excellent coating properties and capable of forming an antireflection film with a low refractive index, without use of PFOS nor PFOA having 7 or more carbon atoms.An antireflection coating composition which contains a fluorinated surfactant (A) containing a compound (A1) represented by the following formula (I), a water-soluble polymer (B) and an aqueous medium (C):in-line-formulae description="In-line Formulae" end="lead"?R1—O—(R2—O)n—R3—X1 (I)in-line-formulae description="In-line Formulae" end="tail"?wherein R1is a linear or branched perfluoroalkyl group of which the terminal fluorine atom may be substituted by a hydrogen atom or a chlorine atom, each of R2and R3which are independent of each other, is a linear or branched perfluoroalkylene group, provided that the total number of carbon atoms in R1, R2and R3is at most 5, n is 0 or an integer of at least 1, X1is —COOH or —C(CF2Z1)(CF2Z2)OH, which may form a salt, and each of Z1and Z2is a hydrogen atom, a fluorine atom, a chlorine atom or a trifluoromethyl group.
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Asahi Glass Company Limited
Harlan Robert D.
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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