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US 2017/0253752 A1Published application
Coating Composition Comprising Anti-Skinning Agent
AssigneePPG Coatings Europe B.V.
InventorsJohn Weijnen, Cornelis Brandjes
Life of this patent
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Abstract
The invention relates to a coating composition comprising an oxidatively drying binder and an anti-skinning agent, the anti-skinning agent comprising: a) a diketone of formula (I) (b) an aldoxime or ketoxime of formula (II) wherein R1, R2, R3, R4 and n have the same meaning as that defined by the present application.
Claims15
A coating composition comprising an oxidatively drying binder and an anti-skinning agent, the anti-skinning agent comprising:
- a) a diketone of formula I
- wherein
- n is an integer selected from 1 and 2, preferably wherein n is 1;
- and
- R1 is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- R2 is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- or
- R1 taken together with R2 form a 4, 5, 6, 7, 8, 9 or 10-membered carbon ring, optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- b) an aldoxime or ketoxime of formula II
- wherein
- R3 is hydrogen or is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- R4 is hydrogen or is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- or
- R3 taken together with R4 form a 5, 6, 7, 8, 9 or 10-membered carbon ring, optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen.
11 more elements
The coating composition or use according to any one of statements 1 to 9, wherein the aldoxime or ketoxime of formula (II) is present in a concentration of at least 0.01% by weight, with % by weight based on the total weight of the coating composition.
Use of a composition comprising:
- a) a diketone of formula I
- wherein
- n is an integer selected from 1 and 2, preferably wherein n is 1;
- and
- R1 is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- R2 is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- or
- R1 taken together with R2 form a 4, 5, 6, 7, 8, 9 or 10-membered carbon ring, optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- and
- b) an aldoxime or ketoxime of formula II
- wherein
- R3 is hydrogen or is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- R4 is hydrogen or is selected from the group comprising C1-24alkyl, C6-20aryl, C6-20arylC1-12alkyl, heteroaryl, heteroarylC1-12alkyl, each group being optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- or
- R3 taken together with R4 form a 5, 6, 7, 8, 9 or 10-membered carbon ring, optionally substituted with one or more substituents each independently selected from the group comprising C1-6alkyl, —OH, and halogen;
- as an anti-skinning agent in a coating composition comprising an oxidatively drying binder.
13 more elements
Dependencies are inferred from the claim text.