Aqueous phenolic resin dispersions

Details Aqueous phenolic resin dispersions Aqueous phenolic resin dispersions

C - Chemistry, Metallurgy

08

L

C08L 61/06 (2006.01) C08J 3/03 (2006.01) C09D 161/06 (2006.01) C08L 29/04 (2006.01)

Patent

CA 2211198

The invention is directed to a stable phenolic dispersion of hydrophilic phenolic resin polymer using polyvinyl alcohol as protective colloid. Incorporation of a small proportion of an etherified bisphenol-A resin into an aqueous solution of a phenolic resin and a protective colloid (e.g., polyvinyl alcohol) forms a stable dispersion with low volatile organics content.

Dispersion phénolique stable de polymère de résine phénolique hydrophile utilisant un alcool polyvinylique en tant que colloïde protecteur. L'incorporation d'une petite proportion d'une résine bisphénol-A éthérifiée dans une solution aqueuse d'une résine phénolique et d'un colloïde protecteur (par ex. de l'alcool polyvinylique) forme une dispersion stable, à faible teneur en substances volatiles organiques.

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