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Aqueous binding agent, useful for coating or impregnation of thread fleece, particularly glass fiber fleeces or paper; the production of decoration laminates and floor coverings, comprises polymer, alkanolamine and yellowing inhibitor
Aqueous binding agent, useful for coating or impregnation of thread fleece, particularly glass fiber fleeces or paper; the production of decoration laminates and floor coverings, comprises polymer, alkanolamine and yellowing inhibitor
Aqueous binding agent (A) comprises: (1) a polymer or its mixture obtained by radical polymerization of 5-100 wt.% of ethylenic unsaturated compound, ethylenic unsaturated carbonic acid, dicarbonic acid and/or dicarbonic acid anhydride (which together are called acid monomers); (2) alkanolamine with at least two hydroxyl groups; and (3) a yellowing inhibitor. An independent claim is included for the controlled crosslinking of the aqueous bonding agent comprising: crosslinking the polymer and alkanolamine by increasing the temperature and determining the yellowing tone of the obtained product; determining the quantity of yellowing inhibitor necessary to compensate the yellowing tone and adding the determined quantity to (A); and subsequently crosslinking (A) by increasing the temperature, where the duration of the crosslinking reaction is controlled by coloring the crosslinking product.
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