Pigment paste
AssigneeAkzo Nobel N.V.
InventorsRobertus Jozef Franciscus Jans, Eugene Michael Arnoldus De Jong
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Abstract
A pigment paste for tinting a coating composition, the pigment paste comprising at least one branched alkyd having a viscosity below 5 Pa.s, preferably below 3.5 Pa.s, at 23° C. and at a shear rate of 100 s−1, and pigment. The pigment paste can also include an aromate-free solvent. The number average molecular weight Mn of the alkyd is preferably between 2,000 and 2,400 g/mole. The degree of branching of the alkyd is preferably at least 0.35 and preferably below 0.42. The oil length is preferably between 76 and 84. The VOC is preferably below 250 g/l.
Claims18
A pigment paste for tinting a coating composition, the pigment paste comprising at least one branched alkyd having a viscosity below 5 Pa.s at 23° C. and at a shear rate of 100 s−1, and one or more pigments.
A pigment paste for tinting a coating composition, the pigment paste being made by mixing at least one branched alkyd having a viscosity below 5 Pa.s at 23° C. and at a shear rate of 100 s−1, and one or more pigments.
Dependencies are inferred from the claim text.