C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 161/00 (2006.01) C09J 131/02 (2006.01)
Patent
CA 2151445
Aqueous emulsion adhesives having a pH from 2 to 6 which comprise homo- or copolymeric polyvinyl esters, polymeric protective colloids, water-soluble compounds which can be complexed with the polymeric protective colloids, and at least partially masked polyaldehydes having at least 3 carbon atoms from which aldehyde groups can be released in a controlled manner in acidic media are suitable for bonding porous and semiporous substrates.
Jakob Martin
Matz Volker
Celanese Emulsions Gmbh
Fetherstonhaugh & Co.
Hoechst Aktiengesellschaft
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