US PATENT SUBCLASS 264 / 45.4
.~.~ Forming one layer by uniting and expanding expandable thermoplastic beads or particles

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}
45.4.~.~ Forming one layer by uniting and expanding expandable thermoplastic beads or particles

DEFINITION

Classification: 264/45.4

(under subclass 45.1) Processes wherein the material to be foamed is in the form of beads or particles which unite when expanded.