US PATENT SUBCLASS 428 / 474.9
.~.~.~ At least one layer is nylon type

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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
474.4  DF  .~ Of polyamide {8}
474.7  DF  .~.~ Next to second layer of polyamide {1}
474.9.~.~.~ At least one layer is nylon type

DEFINITION

Classification: 428/474.9

At least one layer is nylon type:

(under subclass 474.4) Product in which at least one of the polyamide layers contains a polymer having a chain of four or more carbon atoms between its carbonamide groups.