Petrolite Corporation

Baker Hughes Corporation

Other

Timothy J Baker

John H Woods

David J Poelker

Jeffrey W Germer

Jeffrey R Zerr

An aqueous external dispersion comprising a wax dispersant and an organic crystal modifier composition dispersed through a continuous water phase is useful as a crystal modifier for petroleum or a petroleum-derived liquid. The dispersant comprises a non-ionic surfactant and is present in the dispersion in an amount sufficient to impart at least meta-stability to the dispersion. The dispersion has a viscosity at 25.degree. C. of less than about 50,000 centipoise.

Aqueous external crystal modifier dispersion

A process of dispersing a pigment consists of agitating a pigment in water with a polyoxyalkylated ether dispersant. The polyoxyalkylated ether comprises Units of the formulae A and B wherein

Process for dispersing pigments with polyoxyalkylated ethers

An aqueous dispersion is provided which comprises water, a dispersant and a linear or branched chain saturated aliphatic hydrocarbon. The dispersant is of the general formula ##STR1## wherein R and R.sub.1 are independently selected from the group consisting of hydrogen and C.sub.1 -C.sub.10 alkyl; R.sub.2 is selected from the group consisting of hydrogen and a C.sub.1 -C.sub.5 alkyl group; x is about 8 to about 112 and y is about 1 to about 1,370. The aliphatic hydrocarbon is either linear or branched chain and has a molecular weight of from about 300 to about 5,000. Such dispersions have particular applicability in water based inks and overprint varnishes.

Additive dispersions containing ethoxylated alcohols

An overprint aqueous varnish has improved properties by having incorporated therein a small amount of an aqueous mixture of a finely divided hydrocarbon and certain high molecular weight oxyalkylated primary alcohols.

Overprint aqueous varnish

An aqueous dispersion useful in formulating water-based printing inks is provided. The dispersion contains water, an alkoxylated primary linear polymeric alcohol dispersant and a finely divided mostly linear aliphatic hydrocarbon having a molecular weight of about 300-3,000 and/or a finely divided chemically modified mostly linear aliphatic hydrocarbon having a molecular weight of about 300-3,000.

Growing community of inventors

Claremore, OK, United States of America

Timothy J Baker