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US 12,006,396 B2Granted
Amorphous polyesters on the basis of betulin
AssigneeHenkel AG & Co. KGaA
InventorsAdrian Brandt, Horst Beck, Kerstin Schroeder, Alexander Kux
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Abstract
The present invention relates to amorphous polyesters on the basis of betulin, a method for producing them and their use.
Claims16
An amorphous polyester prepared from a reactive raw material mixture of:
- (a) betulin;
- (b) dicarboxylic acid;
- and
- (c) at least one compound selected from the group consisting of short-chain polyol, amine, and vegetable oil,
- characterized in that the amorphous polyester has a glass transition temperature Tg in the range of −50° C. to 80° C., as determined by means of DSC, and all or part of the reactive raw materials are produced from renewable materials, such that the amorphous polyester includes a proportion of renewable raw materials of 90 to 100 wt. %, based on the total weight of the amorphous polyester.
2 more elements
Dependencies are inferred from the claim text.