Oil-spill marking composition

Details Oil-spill marking composition Oil-spill marking composition

1994-10-17

1995-12-05

Klemanski, Helene

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20A, 106 22B, 106 19B, C09D 1100

Patent

active

054724848

ABSTRACT:
A method for visibly marking an area contaminated with transformer oil or other organic liquid uses a marking composition that consists of a colorant held within a solid carrier material, the colorant being such as to effect a visibly perceptible change upon contact with the organic liquid. The carrier material may be an absorbent that permits delivery of the colorant through capillary action, or the colorant may be encapsulated by a cell-forming matrix material that interacts with the contaminating liquid to effect release.

REFERENCES:
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patent: 3960755 (1976-06-01), Beachem et al.
patent: 4015131 (1977-03-01), McDonough et al.
patent: 4171982 (1979-10-01), Lin
patent: 4186020 (1980-01-01), Wachtel
patent: 4605441 (1986-08-01), Masuda et al.
patent: 4610806 (1986-09-01), Rosen
patent: 4631084 (1986-12-01), Sagawa
patent: 4822417 (1989-04-01), Kobayashi et al.
patent: 5082495 (1992-01-01), Iijima et al.
patent: 5250108 (1993-10-01), Tanaka et al.

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