Stock material or miscellaneous articles – Composite – Of polyamidoester
Reexamination Certificate
2008-07-22
2010-02-02
Lipman, Bernard (Department: 1796)
Stock material or miscellaneous articles
Composite
Of polyamidoester
Reexamination Certificate
active
07655312
ABSTRACT:
One aspect of the present invention is an adhesive composition formed from two packs. One pack includes an isocyanate-functional prepolymer formed by reacting a polyisocyanate with an alcohol (e.g., polyol). The isocyanate equivalents from the polyisocyanate exceed the hydroxyl equivalents from the alcohol. The second pack is an aqueous polymer emulsion. These two packs are combined to form the novel adhesive composition. Another aspect of the invention is a method for joining together two surfaces of wood products by application of an adhesive thereto. The first step in this method is to mist with water the wood product surfaces to be joined. An adhesive composition then is applied to the misted wood product surfaces. Alternatively, the water misting can be replaced with an aqueous emulsion being part of the adhesive composition. Finally, the adhesive composition is cured.
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Chen Gang-Fung
Walworth Gary
Ashland Licensing and Intellectual Property LLC
Lipman Bernard
Montana Mark A.
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