| 释义 |
Gilsonite|ˈgɪlsənaɪt|
Also gilsonite.
[f. the name of S. H. Gilson (see quot. 1888): see -ite1.]
The proprietary name of an exceptionally pure variety of asphalt, found in Utah and Colorado as a brittle, brilliant black solid with a high softening temperature; it resembles glance pitch and grahamite.
1888J. M. Locke in Trans. Amer. Inst. Mining Eng. XVI. 162 Gilsonite or Uintahite, a new variety of Asphaltum from the Uintah mountains, Utah. The discovery of this asphaltum was made by S. H. Gilson, of Salt Lake, and since then the material has borne the local name of Gilsonite. 1921Brit. Mus. Return 160 Basalt coated with asphalt, and gilsonite, from Vera Cruz, Mexico. 1929H. Abraham Asphalts (ed. 3) x. 166 Gilsonite is one of the most valuable asphalts for manufacturing paints and varnishes. 1938J. S. Miller in A. E. Dunstan et al. Sci. Petroleum IV. 2724/1 Because of its brown undertone, Gilsonite is used widely in printing-inks. 1960K. Stern in Industr. Min. & Rocks (ed. 3) xxxiii. 635/1 Gilsonite's high dielectric strength, heat-resisting qualities and its resistance to acids and alkalies makes it of great value as a waterproofing and weather-resisting agent. |