Controlled release supplemental coolant additive

Details Controlled release supplemental coolant additive Controlled release supplemental coolant additive

1997-11-19

2000-01-04

McAvoy, Ellen M.

Compositions

Water-softening or purifying or scale-inhibiting agents

Packages or heterogeneous arrangements

252 71, 252 74, 252 76, 422 7, 428407, C09K 318, C09K 500

Patent

active

060106395

ABSTRACT:
A controlled-release supplement coolant additive for use in diesel engine coolant systems comprising a core containing at least one supplemental coolant additive (SCA) active component and a polymeric coating material encapsulating said core. The controlled released supplement coolant additive slowly releases the SCA active components to a diesel engine coolant system, thereby delivering an effective concentration level of SCA active components over an extended period. The controlled-release supplement coolant additive maintains a minimum concentration level of active SCA components in the coolant system. Additionally, the controlled-release supplemental coolant additive prevents overdosing the coolant system with particular SCA active components such as nitrates.

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