US PATENT SUBCLASS 428 / 319.7
.~.~.~.~ Linear or thermoplastic

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

221  DF  WEB OR SHEET CONTAINING STRUCTURALLY DEFINED ELEMENT OR COMPONENT {9}
304.4  DF  .~ Composite having voids in a component (e.g., porous, cellular, etc.) {14}
318.4  DF  .~.~ With nonvoid component of specified composition {3}
319.3  DF  .~.~.~ Synthetic resin or natural rubbers {1}
319.7.~.~.~.~ Linear or thermoplastic {1}
319.9  DF  .~.~.~.~.~> Hydrocarbon polymer

DEFINITION

Classification: 428/319.7

Linear or thermoplastic:

(under subclass 319.3) Subject matter wherein the nonvoid component is a synthetic resin without cross-linkages, that is, one which softens reversably under the influence of heat.