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
2004-01-12
2010-02-02
Seidleck, James (Department: 1796)
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...
C524S589000, C427S372200
Reexamination Certificate
active
07655718
ABSTRACT:
Zinc carbonates such as carbonic acid zinc salt, zinc carbonate hydroxide monohydrate, zinc bicarbonate, zinc tetraamine carbonate, zinc ammonium carbonate, carbamic acid zinc salt and zinc carbamate can initiate hardening of polyurethane coatings and decrease the coating tack-free time. The decreased tack-free times facilitate earlier application of additional polyurethane layers and earlier return of a coated article to service, and can provide improved floor finishes.
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Carlson Lauren K.
Hei Robert D. P.
Levitt Mark D.
Li Minyu
Ecolab Inc.
Frank Noah
Hoffman Amy J.
Seidleck James
Sorensen Andrew D.
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