Lignin-containing sealant and/or coating compositions from renewable sources
AssigneeRise Innventia AB
InventorsFernando Alvarado, Göran Flodberg
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Abstract
The present invention relates to lignin-containing compositions comprising: 0 to 50 percent by weight of lignin; 0 to 50 percent by weight of a liquid C2-C4polyol; and 10 to 50 percent by weight of an acrylic resin; wherein the percentages by weight are expressed relative to the total dry weight of the composition, and wherein the total dry weight of the composition amounts to 100 percent. The present invention further relates to processes for sealing joints or coating surfaces using such a composition. Moreover, the present invention relates to joints sealed and surfaces coated using such a composition, as well as vehicles comprising such sealed joints and coated surfaces.
Claims17
A lignin-containing composition comprising:
- 10 to 50 percent by weight of lignin;
- 10 to 50 percent by weight of a liquid C2-C4 polyol;
- and
- 10 to 50 percent by weight of an acrylic resin;
- wherein the percentages by weight are expressed relative to the total dry weight of the composition,
- wherein at least 90 percent of the total dry weight of the composition consists of lignin, liquid C2-C4 polyol, acrylic resin and optionally a filler, and
- wherein the total dry weight of the composition amounts to 100 percent.
Dependencies are inferred from the claim text.