US PATENT SUBCLASS 428 / 462
.~.~.~ Including polyene monomers (e.g., butadiene, etc.)

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

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
457  DF  .~ Of metal {8}
461  DF  .~.~ Next to addition polymer from unsaturated monomers {2}
462.~.~.~ Including polyene monomers (e.g., butadiene, etc.)

DEFINITION

Classification: 428/462

(under subclass 461) Product in which the addition polymer is derived from monomers which include polyunsaturated monomers (e.g., butadiene or cyclopentadiene).

(1) Note. A patent which claims metal next to "a synthetic rubber" (e.g., Buna S.* neoprene or G. R. S.*) will be placed in this subclass; unless the synthetic rubber is a thio rubber for which see (3) Note below.

(2) Note. A layer claimed as "rubber" will be considered natural rubber, unless the disclosure indicates other than a natural rubber is intended.

(3) Note. Thio rubber is considered polythioether and a patent to a laminate including thio rubber will be placed in subclass 419.

SEE OR SEARCH THIS CLASS, SUBCLASS:

419, for metal next to a "thio" synthetic rubber and see (3) Note above. 465+, for metal next to natural rubber; and see (2) Note, above.