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US 2008/0289538 A1Published application
Pigment preparations of pasty or gellike consistency
OwnerHolger Friedrich, Jurgen Kischkewitzinventors
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Abstract
The present invention relates to pasty or gellike pigment preparations for colouring lime-bound and/or cement-bound building materials, asphalt, paints, varnishes, paper or plastics and also to a method of preparing them.
Claims34
Pigment preparation for colouring lime-bound and/or cement-bound building materials, asphalt, paints, varnishes, paper or plastics, comprising:
- one or more organic pigments comprising azo, quinacridone, phthalocyanine and perylene pigments and indigoids or mixtures thereof and/or
- one or more inorganic pigments comprising iron oxide, titanium dioxide, chromium oxide, zinc oxide and rutile mixed-phase pigments and carbon black (carbon pigments) or mixtures thereof
- are dispersed in a liquid;
- wherein
- the pigment preparation has a pigment content of at least 15% by weight based on the pigment preparation and
- at least one thickener and/or at least one thickener in combination with one or more compounds which together increase firmness is added in a total amount from 0.001 to 10% by weight based on the pigment preparation;
- the pigment preparation:
- being of pasty or gellike consistency;
- and
- not tending towards phase separation.
7 more elements
Dependencies are inferred from the claim text.