Coil impregnant with modified asphaltite base

Details Coil impregnant with modified asphaltite base Coil impregnant with modified asphaltite base

1976-10-18

1981-08-04

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106279, C08L 9500

Patent

active

042820383

ABSTRACT:
A modified gilsonite based coil impregnant having improved sound suppression properties and rheologically controlled characteristics. In one form of the preferred embodiment, the gilsonite is modified by thermal depolymerization. In another form of the preferred embodiment, the gilsonite is modified by the addition of a process oil having a viscosity gravity constant of 0.97 and a viscosity in SSU at 100.degree. C. of 48.4 and comprising 29-36% by weight of the oil-gilsonite composition. To approximately 75-80% of modified gilsonite is added about 20-25% by weight of ethylenediamine bisstearamide to produce a mixture having a softening point of from 125.degree.-130.degree. C. and a viscosity at 170.degree. C. of from 78 to 118 centipoise.

REFERENCES:
patent: 290057 (1883-12-01), Hyde
patent: 1101281 (1914-06-01), Holmes et al.
patent: 1306520 (1919-06-01), Burkley
patent: 2501149 (1950-03-01), Yellott
patent: 3597378 (1971-08-01), Kubiak et al.
patent: 3660126 (1972-05-01), Moran

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