US PATENT SUBCLASS 428 / 422
.~.~ Addition polymer is perhalogenated

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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
421  DF  .~ Of fluorinated addition polymer from unsaturated monomers {1}
422.~.~ Addition polymer is perhalogenated

DEFINITION

Classification: 428/422

(under subclass 421) Product in which the unsaturated monomers are completely saturated with halogen.

(1) Note. Two or more halogens may be present in the polymer, at least one of which must be fluorine.Thus, examples of polymers found in this subclass are: tetrafluorethylene, trichlorofluorethylene, etc.