Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Reexamination Certificate
2005-05-03
2005-05-03
Gorr, Rachel (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
C528S060000, C528S064000, C528S079000
Reexamination Certificate
active
06887966
ABSTRACT:
The polyurethane resin produced by reacting a component composed mainly of an active hydrogen-containing compound with a component composed mainly of an organic polyisocyanate compound which contains a backbone structure represented by the formula:in an amount of 25% by weight or higher, exhibits a high gas-barrier property and a high adhesion property. Accordingly, the present invention provides: (A) a two-part liquid curable polyurethane resin composition having an excellent adhesion property; (B) a heat-curing gas-barrier polyurethane resin useful as a packaging material; and (C) a paint having excellent rust-proofing property, corrosion resistance and aesthetic decorating property.
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Koyama Takeshi
Nomura Takeshi
Antonelli Terry Stout & Kraus LLP
Gorr Rachel
Mitsubishi Gas Chemical Company Inc.
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