Oil-spill marking method and composition

Details Oil-spill marking method and composition Oil-spill marking method and composition

1993-07-23

1994-10-18

Green, Anthony

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 21R, 252965, 436 56, 503214, 503215, C09D 1100

Patent

active

053564650

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.

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patent: 4822417 (1989-04-01), Kobayashi et al.
patent: 5082495 (1992-01-01), Iijima
patent: 5250108 (1993-10-01), Tanaka et al.

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