C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 161/34 (2006.01) C09J 161/06 (2006.01) C09J 161/12 (2006.01) C08L 61/06 (2006.01) C08L 97/02 (2006.01)
Patent
CA 2118079
A two-part adhesive is provided wherein the first part comprises a stable aqueous alkaline monohydroxylic phenolic resole resin solution containing a methylene donor such as oxazolidine or a methylolurea and the second part comprises a stable resorcinolic resin precondensate having a shortage of formaldehyde and optionally containing a catalyst such as an ester functional compound for the resole resin. The resin in each part exhibits viscosity stability of an unmodified resin until mixed with the other part wherein the methylene donor, of the first part catalyzes the resorcinolic resin of the second part and the catalyst, when used, of the second part catalyzes the monohydroxylic phenolic resole resin of the first part. The adhesive finds utility in the production of structural lignocellulosic panels.
Carlson Fred E.
Detlefsen William D.
Phillips Earl K.
Borden Inc.
Hexion Specialty Chemicals Inc.
Macrae & Co.
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