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US 11,578,167 B2Granted
Sulphur-containing polyester polyols, their production and use
AssigneeBASF SE
InventorsMartin Ruebenacker, Kathrin Cohen, Sirus Zarbakhsh, Sindhu Menon, Sabrina Kronig
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Abstract
The present invention relates to sulfur-containing polyester polyols and to the preparation and use thereof.
Claims12
A polyester polyol, comprising an esterification product of:
- at least one dicarboxylic acid component A), wherein the at least one dicarboxylic acid component A) comprises at least one disulfide-containing dicarboxylic acid a-1);
- and
- a polyol component K) comprising at least one diol D), wherein the at least one diol D) comprises at least one diol b-1)
- selected from the group consisting of cyclohexanedimethanol and hexane-1,6-diol,
- wherein the at least one dicarboxylic acid component A) additionally comprises a non-sulfur-containing dicarboxylic acid a-2).
2 more elements
Dependencies are inferred from the claim text.