Solid carbon black material, preparation thereof and compositions and articles containing the same
AssigneeOrion Engineered Carbons IP GmbH & Co. KG
InventorsHauke Westenberg, Conny Vogler, Werner Niedermeier
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Abstract
The present disclosure provides a solid carbon black material including an oxidized carbon black having a pH of greater than 7, compositions including such solid carbon black material and a polymer component as well as articles made therefrom. The disclosure also concerns a method for manufacturing said solid carbon black material. The solid carbon black material is particularly useful for obtaining rubber compounds with low hysteresis, e.g. for the production of energy-saving tires, with enhanced curing rates compared to the use of conventional oxidized carbon blacks.
Claims19
A solid carbon black material comprising an oxidized carbon black having a pH of 7.5 or more, as determined according to ASTM D1512-15b Test Method B—Sonic Slurry, wherein the oxidized carbon black having a pH of 7.5 or more comprises less than 20 μmol/g of carboxylic acid groups.
A process for manufacturing a solid carbon black material comprising an oxidized carbon black having a pH of 7.5 or more, as determined according to ASTM D1512-15b Test Method B—Sonic Slurry, wherein the oxidized carbon black having a pH of 7.5 or more comprises less than 20 μmol/g of carboxylic acid groups, the method comprising:
- (i) providing an oxidized carbon black, and
- (ii) treating the oxidized carbon black with a base, and
- (iii) optionally wet beading the oxidized carbon black.
A composition comprising:
- (i) a polymer component, and
- (ii) a solid carbon black material comprising an oxidized carbon black having a pH of 7.5 or more, as determined according to ASTM D1512-15b Test Method B—Sonic Slurry, wherein the oxidized carbon black having a pH of 7.5 or more comprises less than 20 μmol/g of carboxylic acid groups.
An article prepared from a composition comprising:
- (i) a polymer component;
- and (ii) a solid carbon black material comprising an oxidized carbon black having a pH of 7.5 or more, as determined according to ASTM D1512-15b Test Method B—Sonic Slurry, wherein the oxidized carbon black having a pH of 7.5 or more comprises less than 20 μmol/g of carboxylic acid groups.
Dependencies are inferred from the claim text.