Removable, biodegradable coating
AssigneeLumiforte Holding B.V.
InventorsBas Jacobus Catharina Tuijtelaars, Albertus Ronald Hofkamp, Cornelis Eme Koning, Paulus Franciscus Anna Buijsen, Roel Henri Martinus Weijers, Elizabeth Antoinette Maria Gerritse-van Hamersveld
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Abstract
The present invention relates to a functional coating obtained from an aqueous coating composition, which composition comprises a pigment and a polymeric binder, wherein the binder has a weight average molecular weight of from 2000 to 50000 g/mole, and an acid value of 40 to 250, and wherein the binder is a polyester comprising a side group introduced by a Diels-Alder and/or pericyclic Ene-reaction, wherein the side group contains an ionic group and/or an ion-forming group.
Claims23
An aqueous coating composition for providing a removable functional coating, which coating is removable with a removing agent comprising a strong base wherein the strong base is an alkali metal hydroxide, the coating composition comprises a pigment and a polymeric binder, wherein the binder has a weight average molecular weight of from 2000 to 50000 g/mole, and an acid value of 40 to 250 mg KOH/g polymeric binder, wherein the binder is a polyester comprising a side group introduced by a Diels-Alder and/or pericyclic Ene-reaction, wherein the side group contains an ionic group.
A functional coating removable with a removing agent comprising a strong base wherein the strong base is an alkali metal hydroxide, wherein the functional coating comprises a pigment and a polymeric binder, wherein the binder has a weight average molecular weight of from 2000 to 50000 g/mole, and an acid value of 40 to 250 mg KOH/g polymeric binder, wherein the binder is a polyester comprising a side group introduced by a Diels-Alder and/or pericyclic Ene-reaction, wherein the side group contains an ionic group.
Dependencies are inferred from the claim text.