Carbon black
AssigneeDegussa AG
InventorsKlaus Bergemann, Egon Fanghänel, Thomas Lüthge, Karl Vogel
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Abstract
The present invention is directed to carbon blacks having organic groups. The organic groups are connected by one or two carbon atoms of a C—C single bond or double bond that are not a component of an aromatic system, contain at least one activating substituent on at least one carbon atom of the C—C single bond or double bond and contain no cyclic C3 structure or 2,3-diazabicyclo[2.2.1]hept-2-ene. The invention includes methods of producing these carbon blacks in which black is reacted with organic compounds containing a C—C double bond or triple bond activated by at least one substituent. The carbon blacks can be used as fillers, reinforcing fillers, UV stabilizers, conductance blacks or pigments.
Claims8
A carbon black with an organic group, wherein the organic group is connected to the carbon black via at least one carbon atom of a C—C single bond or double bond that is not a component of an aromatic system, and which contains at least one activating substituent on at least one carbon atom of the C—C single bond or double bond and contains no cyclic C3 structure or 2,3-diazabicyclo[2.2.1]hept-2-ene, wherein the at least one activating substituent is selected from the group consisting of —CO-R, —CN, —SO2R, —SO2OR, and —CO-X-CO—, wherein
- R is H, alkyl, aryl, functionalized alkyl, or functionalized aryl,
- X is N-R5, wherein
- R5 is alkyl, Y-functionalized alkyl, polymers, cyclic organic groups, aryl, or Y-functionalized aryl of the form Ar—Yn, wherein
- Y is selected from the group consisting of —OH, —SH, —SO3H, —SO3M, —B(OH)2, —O(CH2-CH2-O)n-H, —COOH, —COOM, —NH2, —NR2, —N((CH2-CH2-O)nH)2, —CON((CH2-CH2-O)nH)2, trialkoxysilyl, perfluoroalkyl, R5, —NH3+, —NR3+, —SO2-NR2, —NO2, —Cl, —CO—, —NR2, —SS—, and —SCN;
- M is an alkali metal or alkaline earth metal;
- and
- n is 1 to 5.
A carbon black with organic groups, obtained by reacting a carbon black to form at least one covalent bond with organic compounds containing a C—C double bond or triple bond that is not a component of an aromatic system whose C—C double bond or triple bond is activated by at least one substituent and the organic group contains no cyclic C3 structure or 2,3-diazabicyclo[2.2.1]hept-2-ene, wherein the at least one activating substituent is selected from the group consisting of —CO-R, —CN, —SO2R, —SO2OR, and —CO-X-CO—, wherein
- R is H, alkyl, aryl, functionalized alkyl, or functionalized aryl,
- X is N-R5, wherein
- R5 is alkyl, Y-functionalized alkyl, polymers, cyclic organic groups, aryl, or Y-functionalized aryl of the form Ar—Yn, wherein
- Y is selected from the group consisting of —OH, —SH, —SO3H, —SO3M, —B(OH)2, —O(CH2-CH2-O)n-H, —COOH, —COOM, —NH2, —NR2, —N((CH2-CH2-O)nH)2, —CON((CH2-CH2-O)nH)2, trialkoxysilyl, perfluoroalkyl, R5, —NH3+, —NR3+, —SO2-NR2, —NO2, —Cl, —CO—, —NR2, —SS—, and —SCN;
- M is an alkali metal or alkaline earth metal;
- and
- n is 1 to 5.
Dependencies are inferred from the claim text.