BrightnessTinting strength Resistance to discolorlit med pas good good. good v.gd lit g0od. v gd ation by ultra-violet R e s i ance to chalking. lit med..." pas good good good v.gd lit g0od exc. Resistance to marine lit pas med <a href="http://www.lightcrusher.com/solutions/salt-grinding-machine.html">salt grinding machine</a>.atmosphere. Hydrophobic propnone".-. none good good good v.gdexc none... none are. Rgs is igiice of paints to nied med... good good good exc exc nied.. med exc. Orig iigii'hilic properlit lit good good good v.gd exc lit lit exe.
In the table, the increasing value in any quality is exnum sulfate solution, containing 50 grams per liter expressed by the expressions: none, little (lit.), passable pressed as A1 0 are added. The pigment which is ob- (pas.), medium (med), good, very good (v. gd.), exceltained, after being neutralized by sodium carbonate, lent (exc.). washed, filtered and dried at 110 C., is characterized The brightness indicates a measure showing the reby its affinity for oils and organic solvents. flectance and whiteness of the pigment. Greater bright- This invention has been illustrated by a number of ness is shown by higher figures. Greater tinting strength 40 specific disclosures and a number of specific examples is also shown by the higher figures. Good surface treated exemplifying the practice of the invention. It will b rutile pigments have a tinting strength of 230. understood, however,<a href="http://www.lightcrusher.com/solutions/clinker-grinding-unit.html">clinker grinding unit</a> that various departures from de- An examination of Table 1 shows that the product of tails used in describing and illustrating the invention may Examples 5 and 8 are characterized by a tinting strength he made Without departing from the s pe of the invenand brightness superior to that of non-organophilic cor- U011 as defined ill the pp sresponding products (Example 7) or corresponding or- What is Cl d: ganophilic products prepared with aliphatic fatty acid A method of treating pigments to impart to them salts (Example 2).
It appears that the rutile-type titaimproved Properties including both hydrophobic and nium dioxides treated according to our new process, i.e., Organophilic P P Which comprises forming in all using silicone emulsions as active substances have exaqueous medium? dlspefsion 0f the Pigment be treated ceptionally high tinting strength and brightness. This and Of an Organlc Substance having a non-Polar hydroimprovement in the tinting strength and brightness could phobic radical carrying a POlar Substitlleht, Said Substance not b expected being selected from the group consisting of monoand Th new h d ill t d i h previous examples di-substituted polysiloxanes and alkali metal salts of relating to titanium dioxide, may be successfully used g fatty acids, rejsinic acids and naphthenic a ds nd for the preparation of other organophilic and hydrophobic mlxtPl'cs thereof, Sald Substance being dispersed in the pigments from pigments not already possessing these medium in a Of from to based on the properties, as it is shown by the following examples. dry Weight of the Pigmemfind Suflicieflt to impart both EXAMPLE 9 hydrophobic and organophilic properties to the pigment.