Thixotropic organoclay additive for highly viscous system

Details Thixotropic organoclay additive for highly viscous system Thixotropic organoclay additive for highly viscous system

1993-08-16

1995-04-18

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106278, 501148, C08L 9500

Patent

active

054074770

ABSTRACT:
Improved organophilic clay gellants for highly viscous systems such as asphalt and creosote can be prepared by a process wherein the smectite-type clay is gently dried and/or subjected to minimum or no grinding. The organophilic clay agent may be used to thicken a variety of organic compositions including pitch and heavy resins. In a preferred aspect, the organophilic clay gellant can be directly added to asphalt systems in order to efficiently and effectively modify the viscosity thereof without the use of either a polar activator as a dispersion agent or a preactivation agent.

REFERENCES:
patent: 4743305 (1988-05-01), Doidge et al.
patent: 4769078 (1988-09-01), Tso
patent: 4857491 (1989-08-01), Goodman
patent: 4874728 (1989-10-01), Eilliott et al.
patent: 5110501 (1992-05-01), Knudson, Jr. et al.

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