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US 9,221,945 B2Granted
Liquid, adhesion-promoting additive and process for its preparation
AssigneeEvonik Industries AG
InventorsHeiko Alzer, Ingrid Heussen, Sascha Herrwerth, Thomas Veit, Michael Ewald, Erika Retzlaff, Tanja Joerres, Annika Siebers
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Abstract
A polyester resin, comprising a polyester which comprises as esterified polymer units: at least one of an unsaturated dicarboxylic acid and an unsaturated polycarboxylic acid; and at least one of an alkoxylated diol and an alkoxylated polyol is provided. An adhesion-promoting additive comprising the polyester resin is also provided.
Claims16
A polyester resin, comprising a polyester which comprises as esterified polymer units:
- at least one of an unsaturated dicarboxylic acid and an unsaturated polycarboxylic acid;
- and
- at least one of an alkoxylated diol and an alkoxylated polyol of the formula (I)
- R—O(CH2CH2O)a(CH2CHCH3O)b—H (I)
- wherein
- R=tricyclodecanedimethanol, 1,2-propanediol, cyclohexanedimethanol and neopentyl glycol
- a=0 to 20;
- b=0 to 20;
- with the proviso that a+b≧1;
- wherein said polyester is a liquid at 23° C. and a pressure of 101 325 Pa.
7 more elements
Dependencies are inferred from the claim text.