Flow-modifying agents for plastic materials
AssigneeThe Lubrizol Corporation
InventorJohn Bretz
Life of this patent
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Abstract
Metal-containing organic flow-modifying agents comprising a major proportion of a non-Newtonian colloidal disperse system containing metal-containing particles, dispersing medium and an organic compound having both a hydrophobic and a polar substituent and a minor proportion of polymeric resin which is present as a random dispersion of particles in a non-solvated form are useful in modifying the flow properties of plastic materials. Specific examples of the disperse system are those comprising calcium carbonate particles dispersed in a mineral oil dispersing medium in the presence of a calcium petrosulfonate; an example of the resin is finely divided polyethylene. These agents are useful for modifying the flow properties of plastic materials such as filled asphalt systems.
Claims10
A solid filled material comprising (I) a minor proportion of an asphalt, (II) a major proportion of a filler and (III) (A) a minor proportion of at least one non-Newtonian colloidal disperse system comprising:
- (1) Solid, metal-containing colloidal particles predispersed in
- (2) At least one liquid dispersing medium and
- (3) As an essential component, at least one organic compound which is soluble in said dispersing medium, the molecules of said organic compound being characterized by a hydrophobic portion and at least one polar substituent.
- and (III) (B) a minor portion of at least one polymeric resin present in said non-Newtonian system as a dispersion of discrete particles in non-solvated form.
Dependencies are inferred from the claim text.