US PATENT SUBCLASS 264 / 45.6
.~.~.~ Foam surface layer produced by surface treatment of preformed base material

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

41  DF  PORE FORMING IN SITU (E.G., FOAMING, ETC.) {6}
45.1  DF  .~ Composite article making {7}
45.5  DF  .~.~ Autogenously formed surface layer or base supplies surface (e.g., skin forming, etc.) {1}
45.6.~.~.~ Foam surface layer produced by surface treatment of preformed base material

DEFINITION

Classification: 264/45.6

(under subclass 45.5) Processes wherein the surface foam layer is produced by exposing the preformed base material to a treating agent.