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Cold adhesion promoter for wood glue - comprises soln of polybasic or unsatd carboxylic acid in water-miscible mono- or poly-hydric amine
Cold adhesion promoter for wood glue - comprises soln of polybasic or unsatd carboxylic acid in water-miscible mono- or poly-hydric amine
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机译:用于木材胶的冷粘合促进剂-包含与水混溶的一元或多元胺中的多元或不饱和羧酸溶液
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摘要
Agent for improving the cold adhesion of wood glues consists of an opt. aq. soln. of a polybasic and/or olefinically unsatd. carboxylic acid (I) in a water-miscible mono-or poly-hydric amine (II) with pH 6.5-11, opt. after addn. of water. The amt. of (I) used pref. is 0.35-0.95 of the stoichiometric amt. w.r.t. (II). The agent pref. is liquid at room temp. It can be incorporated in the glue before use or applied separately to the parts to be glued. It is suitable for use in conjunction with glues based on thermo-setting resins (phenolic and aminoplastic) and polymer dispersions. The agent improves the cold adhesion, allowing cold-pressed parts to be moved on belt or roller conveyors, pallets etc.
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