Co-condensates based on phenol-butyraldehyde resins, their...

C - Chemistry – Metallurgy – 08 – L

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400/5411

C08L 61/08 (2006.01) C08G 8/04 (2006.01) C08G 8/28 (2006.01) C08G 8/38 (2006.01) C08G 14/06 (2006.01) C08L 101/00 (2006.01)

Patent

CA 1143089

O.Z. 0050/033,497 Abstract of the Disclosure: Co-condensates are pre- pared by condensing from 0.8 to 2.0 moles of butyralde- hyde with 1 mole of a phenol at from 80 to 220°C with the addition, before, during or after the condensation, of from 5 to 50% by weight, based on the mixture of phenol and butyraldehyde, of one or more thermoplastics containing functional groups, which reacts with phenol, butyraldehyde or the phenol-butyraldehyde resin under the condensation conditions. The co-condensates are used as hot-melt adhesives and as binders for nonwovens.

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