The Dow Chemical Company

Edwin G Larson

Daniel H Haigh

Richard H Hall

Nonblocking oil-swellable oil-insoluble synthetic resinous particle are prepared using isobornyl methacrylate as major monomer.

Oil imbibing polymer particles which are block resistant

Water containing traces of oil is cleaned by passing the oil containing water through a foraminous body, the foraminous body having a coating on the surface thereof of an oil-imbibing, oil-swellable latex polymer in a quantity sufficient to blind the foraminous body when the latex is oil swollen.

Separation of oil from water

Water containing traces of oil is cleaned by passing through a porous bed containing oleophilic bodies and oil imbibing bodies. Oil is collected on the surface of the oleophilic bodies and removed from the oleophilic bodies by the oil imbibing bodies. Such beds have a high capacity for oil retention while maintaining separating efficiency.

A package containing a hazardous liquid is provided. The package comprises a container which is generally impermeable to a hazardous liquid contained therein, the container being subject to discharge of its contents when subjected to impact. The container is disposed within a first jacket of a liquid permeable material of sufficient strength to contain fragments of the container on rupture thereof. A second jacket is provided over first jacket, the second jacket having at least an inner wall and outer wall, the inner wall being liquid permeable, a hazardous liquid swellable body being contained between the inner wall and outer wall and being generally co-extensive with the inner wall and the outer wall, and a third jacket of a hazardous liquid vapor impervious membrane. The package provides substantial improvement in safety when transporting a container containing a hazardous liquid.

Growing community of inventors

Midland, MI, United States of America

Edwin G Larson