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
2005-08-23
2005-08-23
Lipman, Bernard (Department: 1713)
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...
C106S002000, C252S008620, C427S393400, C524S386000, C524S457000, C524S507000, C524S544000, C524S589000, C524S591000, C526S245000
Reexamination Certificate
active
06933338
ABSTRACT:
To provide a water- and oil-repellent composition excellent in durability and excellent in safety and preservation of the environment. A water- and oil-repellent composition which comprises (A) a polymer, (B) an aqueous medium and (C) a surfactant in a mass ratio of (A)/(B)/(C)=100/100-500/1-10, the polymer (A) containing a polymerization unit based on a (meth)acrylate having a polyfluoroalkyl group, a polymerization unit based on an alkyl(meth)acrylate having a C1-C12alkyl group, a polymerization unit based on an alkyl(meth)acrylate having a C16-C22alkyl group and a polymerization unit based on a specific compound having a blocked isocyanate group.
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Maekawa Takashige
Sugimoto Shuichiro
Asahi Glass Company Limited
Lipman Bernard
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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