US PATENT SUBCLASS 148 / 259
.~.~.~.~ Contains organic additive other than for pH control

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
240  DF  .~ Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore {12}
243  DF  .~.~ Liquid reactive coating composition utilized {16}
253  DF  .~.~.~ Contains phosphorus {6}
259.~.~.~.~ Contains organic additive other than for pH control {1}
260  DF  .~.~.~.~.~> Nitrogen-containing organic compound

DEFINITION

Classification: 148/259

Contains organic additive other than for pH control:

(under subclass 253) Subject matter wherein the liquid reactive coating composition contains at least one phosphorus atom and at least one organic compound and which organic compound is more than merely an agent for controlling the acidity or basicity of the coating composition.

(1) Note. The organic compound may or may not be a reactant with the metal substrate.