Use of specific catalysts for the preparation of polyurethane coatings
AssigneeCovestro Deutschland AG
InventorsFrank Richter, Sven Siegemund
Life of this patent
Estimating the term…
Abstract
The present invention relates to a compound for use as catalyst in the production of polyisocyanate polyaddition products, to the production thereof and to the use thereof as catalyst, preferably as thermolatent catalyst, for production of polyisocyanate polyaddition products. The invention further relates to a formulation and to a process for producing polyisocyanate polyaddition products, each using the compound of the invention, and to a polyisocyanate polyaddition product obtained or obtainable by said process. The invention finally relates to a coating composition for coating a substrate, comprising or consisting of the polyisocyanate polyaddition product of the invention.
Claims19
A compound of the general formula (I) or (II):
- where
- R1, R2, R3, R4, R8, R9, R10 and R11 are independently hydrogen or are aliphatic, (cyclo)aliphatic or aromatic radicals that are optionally substituted or have heteroatoms;
- R5 and R12 are independently aliphatic, (cyclo)aliphatic or aromatic radicals that are optionally substituted or have heteroatoms;
- R6 and R7 are independently —OH, —SH, —OR13, halogens, —OC(═O)R14, —SR15, —OC(═S)R16, —OS(═O)2OR17, —OS(═O)2R18 or —NR19R20, where R13 to R20 are independently aliphatic, (cyclo)aliphatic or aromatic radicals that are optionally substituted or have heteroatoms;
- V, W, X and Y are independently oxygen, sulfur, —OC(═O)—, —OC(═S)—, —SC(═O)—, —SC(═S)—, —OS(═O)2O—, —OS(═O)2— or —N(R21)—, where R21 is aliphatic, (cyclo)aliphatic or aromatic radicals that are optionally substituted or have heteroatoms;
- D1 and D2 are independently oxygen, sulfur or nitrogen;
- wherein in formula (I) at least one of the R1, R2, R3 or R4 radicals is hydrogen and at least one of these radicals is not hydrogen, where the carbon atoms C′ and C″ do not bear the same radicals, and
- wherein formula (II) at least one of the R1, R2, R3, R4, R8, R9, R10 or R11 radicals is hydrogen and at least one of these radicals is not hydrogen, where the carbon atoms C′ and C″ and/or C″′ and C″″ do not bear the same radicals.
(canceled)
14-15. (canceled)
Dependencies are inferred from the claim text.